It is useful to be able to designate that certain flags are 'sticky', that
is, if two VMAs are merged one with a flag of this nature and one without,
the merged VMA sets this flag.
As a result we ignore these flags for the purposes of determining VMA flag
differences between VMAs being considered for merge.
This patch therefore updates the VMA merge logic to perform this action,
with flags possessing this property being described in the VM_STICKY
bitmap.
Those flags which ought to be ignored for the purposes of VMA merge are
described in the VM_IGNORE_MERGE bitmap, which the VMA merge logic is also
updated to use.
As part of this change we place VM_SOFTDIRTY in VM_IGNORE_MERGE as it
already had this behaviour, alongside VM_STICKY as sticky flags by
implication must not disallow merge.
Ultimately it seems that we should make VM_SOFTDIRTY a sticky flag in its
own right, but this change is out of scope for this series.
The only sticky flag designated as such is VM_MAYBE_GUARD, so as a result
of this change, once the VMA flag is set upon guard region installation,
VMAs with guard ranges will now not have their merge behaviour impacted as
a result and can be freely merged with other VMAs without VM_MAYBE_GUARD
set.
We also update the VMA userland tests to account for the changes.
Reviewed-by: Pedro Falcato <pfalcato@suse.de>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
---
include/linux/mm.h | 29 +++++++++++++++++++++++++++++
mm/vma.c | 22 ++++++++++++----------
tools/testing/vma/vma_internal.h | 29 +++++++++++++++++++++++++++++
3 files changed, 70 insertions(+), 10 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 699566c21ff7..6c1c459e9acb 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -527,6 +527,35 @@ extern unsigned int kobjsize(const void *objp);
#endif
#define VM_FLAGS_CLEAR (ARCH_VM_PKEY_FLAGS | VM_ARCH_CLEAR)
+/*
+ * Flags which should be 'sticky' on merge - that is, flags which, when one VMA
+ * possesses it but the other does not, the merged VMA should nonetheless have
+ * applied to it:
+ *
+ * VM_MAYBE_GUARD - If a VMA may have guard regions in place it implies that
+ * mapped page tables may contain metadata not described by the
+ * VMA and thus any merged VMA may also contain this metadata,
+ * and thus we must make this flag sticky.
+ */
+#define VM_STICKY VM_MAYBE_GUARD
+
+/*
+ * VMA flags we ignore for the purposes of merge, i.e. one VMA possessing one
+ * of these flags and the other not does not preclude a merge.
+ *
+ * VM_SOFTDIRTY - Should not prevent from VMA merging, if we match the flags but
+ * dirty bit -- the caller should mark merged VMA as dirty. If
+ * dirty bit won't be excluded from comparison, we increase
+ * pressure on the memory system forcing the kernel to generate
+ * new VMAs when old one could be extended instead.
+ *
+ * VM_STICKY - If one VMA has flags which most be 'sticky', that is ones
+ * which should propagate to all VMAs, but the other does not,
+ * the merge should still proceed with the merge logic applying
+ * sticky flags to the final VMA.
+ */
+#define VM_IGNORE_MERGE (VM_SOFTDIRTY | VM_STICKY)
+
/*
* mapping from the currently active vm_flags protection bits (the
* low four bits) to a page protection mask..
diff --git a/mm/vma.c b/mm/vma.c
index 0c5e391fe2e2..6cb082bc5e29 100644
--- a/mm/vma.c
+++ b/mm/vma.c
@@ -89,15 +89,7 @@ static inline bool is_mergeable_vma(struct vma_merge_struct *vmg, bool merge_nex
if (!mpol_equal(vmg->policy, vma_policy(vma)))
return false;
- /*
- * VM_SOFTDIRTY should not prevent from VMA merging, if we
- * match the flags but dirty bit -- the caller should mark
- * merged VMA as dirty. If dirty bit won't be excluded from
- * comparison, we increase pressure on the memory system forcing
- * the kernel to generate new VMAs when old one could be
- * extended instead.
- */
- if ((vma->vm_flags ^ vmg->vm_flags) & ~VM_SOFTDIRTY)
+ if ((vma->vm_flags ^ vmg->vm_flags) & ~VM_IGNORE_MERGE)
return false;
if (vma->vm_file != vmg->file)
return false;
@@ -808,6 +800,7 @@ static bool can_merge_remove_vma(struct vm_area_struct *vma)
static __must_check struct vm_area_struct *vma_merge_existing_range(
struct vma_merge_struct *vmg)
{
+ vm_flags_t sticky_flags = vmg->vm_flags & VM_STICKY;
struct vm_area_struct *middle = vmg->middle;
struct vm_area_struct *prev = vmg->prev;
struct vm_area_struct *next;
@@ -900,11 +893,13 @@ static __must_check struct vm_area_struct *vma_merge_existing_range(
if (merge_right) {
vma_start_write(next);
vmg->target = next;
+ sticky_flags |= (next->vm_flags & VM_STICKY);
}
if (merge_left) {
vma_start_write(prev);
vmg->target = prev;
+ sticky_flags |= (prev->vm_flags & VM_STICKY);
}
if (merge_both) {
@@ -974,6 +969,7 @@ static __must_check struct vm_area_struct *vma_merge_existing_range(
if (err || commit_merge(vmg))
goto abort;
+ vm_flags_set(vmg->target, sticky_flags);
khugepaged_enter_vma(vmg->target, vmg->vm_flags);
vmg->state = VMA_MERGE_SUCCESS;
return vmg->target;
@@ -1124,6 +1120,10 @@ int vma_expand(struct vma_merge_struct *vmg)
bool remove_next = false;
struct vm_area_struct *target = vmg->target;
struct vm_area_struct *next = vmg->next;
+ vm_flags_t sticky_flags;
+
+ sticky_flags = vmg->vm_flags & VM_STICKY;
+ sticky_flags |= target->vm_flags & VM_STICKY;
VM_WARN_ON_VMG(!target, vmg);
@@ -1133,6 +1133,7 @@ int vma_expand(struct vma_merge_struct *vmg)
if (next && (target != next) && (vmg->end == next->vm_end)) {
int ret;
+ sticky_flags |= next->vm_flags & VM_STICKY;
remove_next = true;
/* This should already have been checked by this point. */
VM_WARN_ON_VMG(!can_merge_remove_vma(next), vmg);
@@ -1159,6 +1160,7 @@ int vma_expand(struct vma_merge_struct *vmg)
if (commit_merge(vmg))
goto nomem;
+ vm_flags_set(target, sticky_flags);
return 0;
nomem:
@@ -1902,7 +1904,7 @@ static int anon_vma_compatible(struct vm_area_struct *a, struct vm_area_struct *
return a->vm_end == b->vm_start &&
mpol_equal(vma_policy(a), vma_policy(b)) &&
a->vm_file == b->vm_file &&
- !((a->vm_flags ^ b->vm_flags) & ~(VM_ACCESS_FLAGS | VM_SOFTDIRTY)) &&
+ !((a->vm_flags ^ b->vm_flags) & ~(VM_ACCESS_FLAGS | VM_IGNORE_MERGE)) &&
b->vm_pgoff == a->vm_pgoff + ((b->vm_start - a->vm_start) >> PAGE_SHIFT);
}
diff --git a/tools/testing/vma/vma_internal.h b/tools/testing/vma/vma_internal.h
index 46acb4df45de..a54990aa3009 100644
--- a/tools/testing/vma/vma_internal.h
+++ b/tools/testing/vma/vma_internal.h
@@ -117,6 +117,35 @@ extern unsigned long dac_mmap_min_addr;
#define VM_SEALED VM_NONE
#endif
+/*
+ * Flags which should be 'sticky' on merge - that is, flags which, when one VMA
+ * possesses it but the other does not, the merged VMA should nonetheless have
+ * applied to it:
+ *
+ * VM_MAYBE_GUARD - If a VMA may have guard regions in place it implies that
+ * mapped page tables may contain metadata not described by the
+ * VMA and thus any merged VMA may also contain this metadata,
+ * and thus we must make this flag sticky.
+ */
+#define VM_STICKY VM_MAYBE_GUARD
+
+/*
+ * VMA flags we ignore for the purposes of merge, i.e. one VMA possessing one
+ * of these flags and the other not does not preclude a merge.
+ *
+ * VM_SOFTDIRTY - Should not prevent from VMA merging, if we match the flags but
+ * dirty bit -- the caller should mark merged VMA as dirty. If
+ * dirty bit won't be excluded from comparison, we increase
+ * pressure on the memory system forcing the kernel to generate
+ * new VMAs when old one could be extended instead.
+ *
+ * VM_STICKY - If one VMA has flags which most be 'sticky', that is ones
+ * which should propagate to all VMAs, but the other does not,
+ * the merge should still proceed with the merge logic applying
+ * sticky flags to the final VMA.
+ */
+#define VM_IGNORE_MERGE (VM_SOFTDIRTY | VM_STICKY)
+
#define FIRST_USER_ADDRESS 0UL
#define USER_PGTABLES_CEILING 0UL
--
2.51.0On Fri, Nov 07, 2025 at 04:11:48PM +0000, Lorenzo Stoakes wrote: > It is useful to be able to designate that certain flags are 'sticky', that > is, if two VMAs are merged one with a flag of this nature and one without, > the merged VMA sets this flag. I'm seeing regressions on multiple arm64 platforms in at least the LTP clone302 and madvise10 selftests, both of which have bisected to one of the fixups to this patch. Especially given the other tests that also bisected to the same place I've not investigated further. There's a number of other LTP tests that started failing today including relevant seeming ones munlockall01, mprotect04, madvise10, mprotect03 and futex_cmp_requeue01 but I don't have bisects to confirm they're the same thing. clone302: tst_buffers.c:57: TINFO: Test is using guarded buffers tst_tmpdir.c:316: TINFO: Using /tmp/LTP_clorMwMMw as tmpdir (nfs filesystem) tst_test.c:1953: TINFO: LTP version: 20250530 tst_test.c:1956: TINFO: Tested kernel: 6.18.0-rc6-next-20251119 #1 SMP PREEMPT @1763523415 aarch64 tst_kconfig.c:88: TINFO: Parsing kernel config '/proc/config.gz' tst_test.c:1774: TINFO: Overall timeout per run is 0h 05m 24s clone302.c:61: TPASS: sizeof(struct clone_args_minimal) == 64 (64) clone302.c:102: TPASS: invalid args: clone3() failed as expected: EFAULT (14) clone302.c:102: TPASS: zero size: clone3() failed as expected: EINVAL (22) clone302.c:102: TPASS: short size: clone3() failed as expected: EINVAL (22) clone302.c:92: TFAIL: extra size: clone3() passed unexpectedly clone302.c:102: TPASS: sighand-no-VM: clone3() failed as expected: EINVAL (22) clone302.c:102: TPASS: thread-no-sighand: clone3() failed as expected: EINVAL (22) clone302.c:102: TPASS: fs-newns: clone3() failed as expected: EINVAL (22) clone302.c:102: TPASS: invalid pidfd: clone3() failed as expected: EFAULT (14) clone302.c:102: TPASS: invalid signal: clone3() failed as expected: EINVAL (22) clone302.c:102: TPASS: zero-stack-size: clone3() failed as expected: EINVAL (22) clone302.c:102: TPASS: invalid-stack: clone3() failed as expected: EINVAL (22) madvise10: tst_test.c:1953: TINFO: LTP version: 20250530 tst_test.c:1956: TINFO: Tested kernel: 6.18.0-rc6-next-20251119 #1 SMP PREEMPT @1763523415 aarch64 tst_kconfig.c:88: TINFO: Parsing kernel config '/proc/config.gz' tst_test.c:1774: TINFO: Overall timeout per run is 0h 05m 24s madvise10.c:133: TINFO: MADV_WIPEONFORK zeroes memory in child madvise10.c:107: TPASS: madvise(0xffffa8fbc000, 16384, 0x0) madvise10.c:107: TPASS: madvise(0xffffa8fbc000, 16384, 0x12) madvise10.c:88: TPASS: In PID 660, Matched expected pattern madvise10.c:133: TINFO: MADV_WIPEONFORK with zero length does nothing madvise10.c:107: TPASS: madvise(0xffffa8fbc000, 0, 0x0) madvise10.c:107: TPASS: madvise(0xffffa8fbc000, 0, 0x12) madvise10.c:88: TPASS: In PID 661, Matched expected pattern madvise10.c:133: TINFO: MADV_WIPEONFORK zeroes memory in grand-child madvise10.c:107: TPASS: madvise(0xffffa8fbc000, 16384, 0x0) madvise10.c:107: TPASS: madvise(0xffffa8fbc000, 16384, 0x12) madvise10.c:88: TPASS: In PID 663, Matched expected pattern madvise10.c:133: TINFO: MADV_KEEPONFORK will undo MADV_WIPEONFORK madvise10.c:107: TPASS: madvise(0xffffa8fbc000, 16384, 0x12) madvise10.c:107: TPASS: madvise(0xffffa8fbc000, 16384, 0x13) madvise10.c:81: TFAIL: In PID 664, addr[1] = 0x00, expected[1] = 0x01 madvise10.c:88: TPASS: In PID 664, Matched expected pattern The bisects for both follow the same pattern: # bad: [fe4d0dea039f2befb93f27569593ec209843b0f5] Add linux-next specific files for 20251119 # good: [ef96b7dd050abd62905588c41ffb397e0c9598c7] Merge branch 'for-linux-next-fixes' of https://gitlab.freedesktop.org/drm/misc/kernel.git # good: [bd79452b39c21599e2cff42e9fbeb182656b6f6a] MAINTAINERS: adjust file entry in RISC-V MICROCHIP SUPPORT # good: [21e68bcb1b0c688c2d9ca0d457922febac650ac1] regulator: renesas-usb-vbus-regulator: Remove unused headers # good: [96498e804cb6629e02747336a0a33e4955449732] spi: davinci: remove platform data header # good: [4422df6782eb7aa9725a3c09d9ba3c38ecc85df4] ASoC: ux500: mop500_ab8500: convert to snd_soc_dapm_xxx() # good: [9e510e677090bb794b46348b10e1c8038286e00a] spi: aspeed: Add support for the AST2700 SPI controller # good: [d5c8b7902a41625ea328b52c78ebe750fbf6fef7] ASoC: Intel: avs: Honor NHLT override when setting up a path # good: [118eb2cb97b8fc0d515bb0449495959247db58f0] spi: bcm63xx: drop wrong casts in probe() # good: [059f545832be85d29ac9ccc416a16f647aa78485] spi: add support for microchip "soft" spi controller # good: [6402ddf3027d8975f135cf2b2014d6bbeb2d3436] MAINTAINERS: refer to trivial-codec.yaml in relevant sections # good: [4e00135b2dd1d7924a58bffa551b6ceb3bd836f2] spi: spi-cadence: supports transmission with bits_per_word of 16 and 32 # good: [8ff3dcb0e8a8bf6c41f23ed4aa62d066d3948a10] ASoC: codecs: lpass-rx-macro: add SM6115 compatible # good: [e65b871c9b5af9265aefc5b8cd34993586d93aab] ASoC: codecs: pm4125: Remove irq_chip on component unbind # good: [8d63e85c5b50f1dbfa0ccb214bd91fe5d7e2e860] firmware: cs_dsp: fix kernel-doc warnings in a header file # good: [123cd174a3782307787268adf45f22de4d290128] ASoC: Intel: atom: Replace strcpy() with strscpy() # good: [4d6e2211aeb932e096f673c88475016b1cc0f8ab] ASoC: Intel: boards: fix HDMI playback lookup when HDMI-In capture used # good: [1d562ba0aa7df81335bf96c02be77efe8d5bab87] spi: dt-bindings: nuvoton,npcm-pspi: Convert to DT schema # good: [873bc94689d832878befbcadc10b6ad5bb4e0027] ASoC: Intel: sof_sdw: add codec speaker support for the SKU # good: [32172cf3cb543a04c41a1677c97a38e60cad05b6] ASoC: cs35l56: Allow restoring factory calibration through ALSA control # good: [b3a5302484033331af37569f7277d00131694b57] ASoC: Intel: sof_rt5682: Add quirk override support # good: [772ada50282b0c80343c8989147db816961f571d] ASoC: cs35l56: Alter error codes for calibration routine # good: [fb1ebb10468da414d57153ddebaab29c38ef1a78] regulator: core: disable supply if enabling main regulator fails # good: [6985defd1d832f1dd9d1977a6a2cc2cef7632704] regmap: sdw-mbq: Reorder regmap_mbq_context struct for better packing # good: [2089f086303b773e181567fd8d5df3038bd85937] regulator: mt6363: Remove unneeded semicolon # good: [6951be397ca8b8b167c9f99b5a11c541148c38cb] ASoC: codecs: pm4125: remove duplicate code # good: [4e92abd0a11b91af3742197a9ca962c3c00d0948] spi: imx: add i.MX51 ECSPI target mode support # good: [abc9a349b87ac0fd3ba8787ca00971b59c2e1257] spi: fsl-qspi: support the SpacemiT K1 SoC # good: [1b0f3f9ee41ee2bdd206667f85ea2aa36dfe6e69] ASoC: SDCA: support Q7.8 volume format # good: [55d03b5b5bdd04daf9a35ce49db18d8bb488dffb] spi: imx: remove CLK calculation and check for target mode # good: [6bd1ad97eb790570c167d4de4ca59fbc9c33722a] regulator: pf9453: Fix kernel doc for mux_poll() # good: [655079ac8a7721ac215a0596e3f33b740e01144a] ASoC: qcom: q6asm: Use guard() for spin locks # good: [2f538ef9f6f7c3d700c68536f21447dfc598f8c8] spi: aspeed: Use devm_iounmap() to unmap devm_ioremap() memory # good: [3c36965df80801344850388592e95033eceea05b] regulator: Add support for MediaTek MT6363 SPMI PMIC Regulators # good: [aa897ffc396b48cc39eee133b6b43175d0df9eb5] ASoC: dt-bindings: ti,pcm1862: convert to dtschema # good: [c4e68959af66df525d71db619ffe44af9178bb22] ASoC: dt-bindings: ti,tas2781: Add TAS5822 support # good: [380fd29d57abe6679d87ec56babe65ddc5873a37] spi: tegra210-quad: Check hardware status on timeout # good: [af9c8092d84244ca54ffb590435735f788e7a170] regmap: i3c: Use ARRAY_SIZE() # good: [2ecc8c089802e033d2e5204d21a9f467e2517df9] regulator: pf9453: remove unused I2C_LT register # good: [84194c66aaf78fed150edb217b9f341518b1cba2] ASoC: codecs: aw88261: pass pointer directly instead of passing the address # good: [252abf2d07d33b1c70a59ba1c9395ba42bbd793e] regulator: Small cleanup in of_get_regulation_constraints() # good: [ed5d499b5c9cc11dd3edae1a7a55db7dfa4f1bdc] regcache: maple: Split ->populate() from ->init() # good: [e73b743bfe8a6ff4e05b5657d3f7586a17ac3ba0] ASoC: soc-core: check ops & auto_selectable_formats in snd_soc_dai_get_fmt() to prevent dereference error # good: [f1dfbc1b5cf8650ae9a0d543e5f5335fc0f478ce] ASoC: max98090/91: fixing the stream index # good: [6ef8e042cdcaabe3e3c68592ba8bfbaee2fa10a3] ASoC: codec: wm8400: replace printk() calls with dev_*() device aware logging # good: [ecd0de438c1f0ee86cf8f6d5047965a2a181444b] spi: tle62x0: Add newline to sysfs attribute output # good: [cf6bf51b53252284bafc7377a4d8dbf10f048b4d] ASoC: cs4271: Add support for the external mclk # good: [20bcda681f8597e86070a4b3b12d1e4f541865d3] ASoC: codecs: va-macro: fix revision checking # good: [e062bdfdd6adbb2dee7751d054c1d8df63ddb8b8] regmap: warn users about uninitialized flat cache # good: [8fdb030fe283c84fd8d378c97ad0f32d6cdec6ce] ASoC: qcom: sc7280: make use of common helpers # good: [28039efa4d8e8bbf98b066133a906bd4e307d496] MAINTAINERS: remove obsolete file entry in DIALOG SEMICONDUCTOR DRIVERS # good: [f034c16a4663eaf3198dc18b201ba50533fb5b81] ASoC: spacemit: add failure check for spacemit_i2s_init_dai() # good: [66fecfa91deb536a12ddf3d878a99590d7900277] ASoC: spacemit: use `depends on` instead of `select` # good: [4a5ac6cd05a7e54f1585d7779464d6ed6272c134] ASoC: sun4i-spdif: Support SPDIF output on A523 family # good: [ef042df96d0e1089764f39ede61bc8f140a4be00] ASoC: SDCA: Add HID button IRQ # good: [4c33cef58965eb655a0ac8e243aa323581ec025f] regulator: pca9450: link regulator inputs to supply groups # good: [e7434adf0c53a84d548226304cdb41c8818da1cb] ASoC: cs530x: Add SPI bus support for cs530x parts # good: [77a58ba7c64ccca20616aa03599766ccb0d1a330] spi: spi-mem: Trace exec_op # good: [01313661b248c5ba586acae09bff57077dbec0a5] regulator: Let raspberrypi drivers depend on ARM # good: [4795375d8aa072e9aacb0b278e6203c6ca41816a] ASoC: cs-amp-lib-test: Add test cases for cs_amp_set_efi_calibration_data() # good: [d29479abaded34b2b1dab2e17efe96a65eba3d61] ASoC: renesas: fsi: Constify struct fsi_stream_handler # good: [e973dfe9259095fb509ab12658c68d46f0e439d7] ASoC: qcom: sm8250: add qrb2210-sndcard compatible string # good: [c17fa4cbc546c431ccf13e9354d5d9c1cd247b7c] ASoC: sdw_utils: add name_prefix for rt1321 part id # good: [310bf433c01f78e0756fd5056a43118a2f77318c] ASoC: max98090/91: fixing a space # good: [fd5ef3d69f8975bad16c437a337b5cb04c8217a2] spi: spi-qpic-snand: make qcom_spi_ecc_engine_ops_pipelined const # good: [d054cc3a2ccfb19484f3b54d69b6e416832dc8f4] regulator: rpmh-regulator: Add RPMH regulator support for PMR735D # good: [2528c15f314ece50218d1273654f630d74109583] ASoC: max98090/91: adding DAPM routing for digital output for max98091 # good: [638bae3fb225a708dc67db613af62f6d14c4eff4] ASoC: max98090/91: added DAPM widget for digital output for max98091 # good: [ecba655bf54a661ffe078856cd8dbc898270e4b5] ASoC: fsl_aud2htx: add IEC958_SUBFRAME_LE format in supported list # good: [7e1906643a7374529af74b013bba35e4fa4e6ffc] ASoC: codecs: va-macro: Clean up on error path in probe() # good: [d742ebcfe524dc54023f7c520d2ed2e4b7203c19] ASoC: soc.h: remove snd_soc_kcontrol_component() # good: [6658472a3e2de08197acfe099ba71ee0e2505ecf] ASoC: amd: amd_sdw: Propagate the PCI subsystem Vendor and Device IDs # good: [fce217449075d59b29052b8cdac567f0f3e22641] ASoC: spacemit: add i2s support for K1 SoC # good: [5677aa6a08c1df8bc1ec71516fe1ced9b7cb545f] HID: intel-ish-hid: ipc: Separate hibernate callbacks in dev_pm_ops # good: [0cc08c8130ac8f74419f99fe707dc193b7f79d86] spi: aspeed: Fix an IS_ERR() vs NULL bug in probe() # good: [0743acf746a81e0460a56fd5ff847d97fa7eb370] spi: airoha: buffer must be 0xff-ed before writing # good: [b1fc226edf8680882a5bf89038bdc55afa2ac80d] media: stm32: dma2d: Drop unneeded v4l2_m2m_get_vq() NULL check # good: [15afe57a874eaf104bfbb61ec598fa31627f7b19] ASoC: dt-bindings: qcom: Add Kaanapali LPASS macro codecs # good: [d77daa49085b067137d0adbe3263f75a7ee13a1b] spi: aspeed: fix spelling mistake "triming" -> "trimming" # good: [1e570e77392f43a3cdab2849d1f81535f8a033e2] ASoC: mxs-saif: support usage with simple-audio-card # good: [0d7f4e99217f6f715c7064c67eae8d9d09313b14] drm/i915/display: Introduce dp/psr_compute_config_late() # good: [fb25114cd760c13cf177d9ac37837fafcc9657b5] regulator: sy7636a: add gpios and input regulator # good: [65efe5404d151767653c7b7dd39bd2e7ad532c2d] regulator: rpmh-regulator: Add RPMH regulator support for Glymur # good: [6621b0f118d500092f5f3d72ddddb22aeeb3c3a0] ASoC: codecs: rt5670: use SOC_VALUE_ENUM_SINGLE_DECL for DAC2 L/R MX-1B # good: [433e294c3c5b5d2020085a0e36c1cb47b694690a] regulator: core: forward undervoltage events downstream by default # good: [0b0eb7702a9fa410755e86124b4b7cd36e7d1cb4] ASoC: replace use of system_wq with system_dfl_wq # good: [bf770d6d2097a52d87f4d9c88d0b05bd3998d7de] x86/module: Improve relocation error messages # good: [c2d420796a427dda71a2400909864e7f8e037fd4] elfnote: Change ELFNOTE() to use __UNIQUE_ID() # good: [7e7e2c6e2a1cb250f8d03bb99eed01f6d982d5dd] ASoC: sof-function-topology-lib: escalate the log when missing function topoplogy # good: [4412ab501677606436e5c49e41151a1e6eac7ac0] spi: dt-bindings: spi-qpic-snand: Add IPQ5332 compatible # good: [5e537031f322d55315cd384398b726a9a0748d47] ASoC: codecs: Fix the error of excessive semicolons # good: [64d87ccfae3326a9561fe41dc6073064a083e0df] spi: aspeed: Only map necessary address window region # good: [4d410ba9aa275e7990a270f63ce436990ace1bea] dt-bindings: sound: Update ADMAIF bindings for tegra264 # good: [9797329220a2c6622411eb9ecf6a35b24ce09d04] ASoC: sof-function-topology-lib: escalate the log when missing function topoplogy # good: [fe8cc44dd173cde5788ab4e3730ac61f3d316d9c] spi: dw: add target mode support # good: [6277a486a7faaa6c87f4bf1d59a2de233a093248] regulator: dt-bindings: Convert Dialog DA9211 Regulators to DT schema # good: [b83fb1b14c06bdd765903ac852ba20a14e24f227] spi: offload: Add offset parameter # good: [807c42dd8028d71222dfce035c2e87aaecbf623f] drm/xe: Don't change LRC ring head on job resubmission # good: [6c177775dcc5e70a64ddf4ee842c66af498f2c7c] Merge branch 'next/drivers' into for-next git bisect start 'fe4d0dea039f2befb93f27569593ec209843b0f5' 'ef96b7dd050abd62905588c41ffb397e0c9598c7' 'bd79452b39c21599e2cff42e9fbeb182656b6f6a' '21e68bcb1b0c688c2d9ca0d457922febac650ac1' '96498e804cb6629e02747336a0a33e4955449732' '4422df6782eb7aa9725a3c09d9ba3c38ecc85df4' '9e510e677090bb794b46348b10e1c8038286e00a' 'd5c8b7902a41625ea328b52c78ebe750fbf6fef7' '118eb2cb97b8fc0d515bb0449495959247db58f0' '059f545832be85d29ac9ccc416a16f647aa78485' '6402ddf3027d8975f135cf2b2014d6bbeb2d3436' '4e00135b2dd1d7924a58bffa551b6ceb3bd836f2' '8ff3dcb0e8a8bf6c41f23ed4aa62d066d3948a10' 'e65b871c9b5af9265aefc5b8cd34993586d93aab' '8d63e85c5b50f1dbfa0ccb214bd91fe5d7e2e860' '123cd174a3782307787268adf45f22de4d290128' '4d6e2211aeb932e096f673c88475016b1cc0f8ab' '1d562ba0aa7df81335bf96c02be77efe8d5bab87' '873bc94689d832878befbcadc10b6ad5bb4e0027' '32172cf3cb543a04c41a1677c97a38e60cad05b6' 'b3a5302484033331af37569f7277d00131694b57' '772ada50282b0c80343c8989147db816961f571d' 'fb1ebb10468da414d57153ddebaab29c38ef1a78' '6985defd1d832f1dd9d1977a6a2cc2cef7632704' '2089f086303b773e181567fd8d5df3038bd85937' '6951be397ca8b8b167c9f99b5a11c541148c38cb' '4e92abd0a11b91af3742197a9ca962c3c00d0948' 'abc9a349b87ac0fd3ba8787ca00971b59c2e1257' '1b0f3f9ee41ee2bdd206667f85ea2aa36dfe6e69' '55d03b5b5bdd04daf9a35ce49db18d8bb488dffb' '6bd1ad97eb790570c167d4de4ca59fbc9c33722a' '655079ac8a7721ac215a0596e3f33b740e01144a' '2f538ef9f6f7c3d700c68536f21447dfc598f8c8' '3c36965df80801344850388592e95033eceea05b' 'aa897ffc396b48cc39eee133b6b43175d0df9eb5' 'c4e68959af66df525d71db619ffe44af9178bb22' '380fd29d57abe6679d87ec56babe65ddc5873a37' 'af9c8092d84244ca54ffb590435735f788e7a170' '2ecc8c089802e033d2e5204d21a9f467e2517df9' '84194c66aaf78fed150edb217b9f341518b1cba2' '252abf2d07d33b1c70a59ba1c9395ba42bbd793e' 'ed5d499b5c9cc11dd3edae1a7a55db7dfa4f1bdc' 'e73b743bfe8a6ff4e05b5657d3f7586a17ac3ba0' 'f1dfbc1b5cf8650ae9a0d543e5f5335fc0f478ce' '6ef8e042cdcaabe3e3c68592ba8bfbaee2fa10a3' 'ecd0de438c1f0ee86cf8f6d5047965a2a181444b' 'cf6bf51b53252284bafc7377a4d8dbf10f048b4d' '20bcda681f8597e86070a4b3b12d1e4f541865d3' 'e062bdfdd6adbb2dee7751d054c1d8df63ddb8b8' '8fdb030fe283c84fd8d378c97ad0f32d6cdec6ce' '28039efa4d8e8bbf98b066133a906bd4e307d496' 'f034c16a4663eaf3198dc18b201ba50533fb5b81' '66fecfa91deb536a12ddf3d878a99590d7900277' '4a5ac6cd05a7e54f1585d7779464d6ed6272c134' 'ef042df96d0e1089764f39ede61bc8f140a4be00' '4c33cef58965eb655a0ac8e243aa323581ec025f' 'e7434adf0c53a84d548226304cdb41c8818da1cb' '77a58ba7c64ccca20616aa03599766ccb0d1a330' '01313661b248c5ba586acae09bff57077dbec0a5' '4795375d8aa072e9aacb0b278e6203c6ca41816a' 'd29479abaded34b2b1dab2e17efe96a65eba3d61' 'e973dfe9259095fb509ab12658c68d46f0e439d7' 'c17fa4cbc546c431ccf13e9354d5d9c1cd247b7c' '310bf433c01f78e0756fd5056a43118a2f77318c' 'fd5ef3d69f8975bad16c437a337b5cb04c8217a2' 'd054cc3a2ccfb19484f3b54d69b6e416832dc8f4' '2528c15f314ece50218d1273654f630d74109583' '638bae3fb225a708dc67db613af62f6d14c4eff4' 'ecba655bf54a661ffe078856cd8dbc898270e4b5' '7e1906643a7374529af74b013bba35e4fa4e6ffc' 'd742ebcfe524dc54023f7c520d2ed2e4b7203c19' '6658472a3e2de08197acfe099ba71ee0e2505ecf' 'fce217449075d59b29052b8cdac567f0f3e22641' '5677aa6a08c1df8bc1ec71516fe1ced9b7cb545f' '0cc08c8130ac8f74419f99fe707dc193b7f79d86' '0743acf746a81e0460a56fd5ff847d97fa7eb370' 'b1fc226edf8680882a5bf89038bdc55afa2ac80d' '15afe57a874eaf104bfbb61ec598fa31627f7b19' 'd77daa49085b067137d0adbe3263f75a7ee13a1b' '1e570e77392f43a3cdab2849d1f81535f8a033e2' '0d7f4e99217f6f715c7064c67eae8d9d09313b14' 'fb25114cd760c13cf177d9ac37837fafcc9657b5' '65efe5404d151767653c7b7dd39bd2e7ad532c2d' '6621b0f118d500092f5f3d72ddddb22aeeb3c3a0' '433e294c3c5b5d2020085a0e36c1cb47b694690a' '0b0eb7702a9fa410755e86124b4b7cd36e7d1cb4' 'bf770d6d2097a52d87f4d9c88d0b05bd3998d7de' 'c2d420796a427dda71a2400909864e7f8e037fd4' '7e7e2c6e2a1cb250f8d03bb99eed01f6d982d5dd' '4412ab501677606436e5c49e41151a1e6eac7ac0' '5e537031f322d55315cd384398b726a9a0748d47' '64d87ccfae3326a9561fe41dc6073064a083e0df' '4d410ba9aa275e7990a270f63ce436990ace1bea' '9797329220a2c6622411eb9ecf6a35b24ce09d04' 'fe8cc44dd173cde5788ab4e3730ac61f3d316d9c' '6277a486a7faaa6c87f4bf1d59a2de233a093248' 'b83fb1b14c06bdd765903ac852ba20a14e24f227' '807c42dd8028d71222dfce035c2e87aaecbf623f' '6c177775dcc5e70a64ddf4ee842c66af498f2c7c' # test job: [bd79452b39c21599e2cff42e9fbeb182656b6f6a] https://lava.sirena.org.uk/scheduler/job/2104086 # test job: [21e68bcb1b0c688c2d9ca0d457922febac650ac1] https://lava.sirena.org.uk/scheduler/job/2104526 # test job: [96498e804cb6629e02747336a0a33e4955449732] https://lava.sirena.org.uk/scheduler/job/2099727 # test job: [4422df6782eb7aa9725a3c09d9ba3c38ecc85df4] https://lava.sirena.org.uk/scheduler/job/2097779 # test job: [9e510e677090bb794b46348b10e1c8038286e00a] https://lava.sirena.org.uk/scheduler/job/2093905 # test job: [d5c8b7902a41625ea328b52c78ebe750fbf6fef7] https://lava.sirena.org.uk/scheduler/job/2092717 # test job: [118eb2cb97b8fc0d515bb0449495959247db58f0] https://lava.sirena.org.uk/scheduler/job/2092417 # test job: [059f545832be85d29ac9ccc416a16f647aa78485] https://lava.sirena.org.uk/scheduler/job/2086746 # test job: [6402ddf3027d8975f135cf2b2014d6bbeb2d3436] https://lava.sirena.org.uk/scheduler/job/2086625 # test job: [4e00135b2dd1d7924a58bffa551b6ceb3bd836f2] https://lava.sirena.org.uk/scheduler/job/2082495 # test job: [8ff3dcb0e8a8bf6c41f23ed4aa62d066d3948a10] https://lava.sirena.org.uk/scheduler/job/2083122 # test job: [e65b871c9b5af9265aefc5b8cd34993586d93aab] https://lava.sirena.org.uk/scheduler/job/2083037 # test job: [8d63e85c5b50f1dbfa0ccb214bd91fe5d7e2e860] https://lava.sirena.org.uk/scheduler/job/2082590 # test job: [123cd174a3782307787268adf45f22de4d290128] https://lava.sirena.org.uk/scheduler/job/2078937 # test job: [4d6e2211aeb932e096f673c88475016b1cc0f8ab] https://lava.sirena.org.uk/scheduler/job/2078014 # test job: [1d562ba0aa7df81335bf96c02be77efe8d5bab87] https://lava.sirena.org.uk/scheduler/job/2078351 # test job: [873bc94689d832878befbcadc10b6ad5bb4e0027] https://lava.sirena.org.uk/scheduler/job/2074819 # test job: [32172cf3cb543a04c41a1677c97a38e60cad05b6] https://lava.sirena.org.uk/scheduler/job/2075088 # test job: [b3a5302484033331af37569f7277d00131694b57] https://lava.sirena.org.uk/scheduler/job/2074568 # test job: [772ada50282b0c80343c8989147db816961f571d] https://lava.sirena.org.uk/scheduler/job/2069245 # test job: [fb1ebb10468da414d57153ddebaab29c38ef1a78] https://lava.sirena.org.uk/scheduler/job/2059767 # test job: [6985defd1d832f1dd9d1977a6a2cc2cef7632704] https://lava.sirena.org.uk/scheduler/job/2059097 # test job: [2089f086303b773e181567fd8d5df3038bd85937] https://lava.sirena.org.uk/scheduler/job/2058075 # test job: [6951be397ca8b8b167c9f99b5a11c541148c38cb] https://lava.sirena.org.uk/scheduler/job/2055750 # test job: [4e92abd0a11b91af3742197a9ca962c3c00d0948] https://lava.sirena.org.uk/scheduler/job/2055873 # test job: [abc9a349b87ac0fd3ba8787ca00971b59c2e1257] https://lava.sirena.org.uk/scheduler/job/2054602 # test job: [1b0f3f9ee41ee2bdd206667f85ea2aa36dfe6e69] https://lava.sirena.org.uk/scheduler/job/2053511 # test job: [55d03b5b5bdd04daf9a35ce49db18d8bb488dffb] https://lava.sirena.org.uk/scheduler/job/2053867 # test job: [6bd1ad97eb790570c167d4de4ca59fbc9c33722a] https://lava.sirena.org.uk/scheduler/job/2053537 # test job: [655079ac8a7721ac215a0596e3f33b740e01144a] https://lava.sirena.org.uk/scheduler/job/2049694 # test job: [2f538ef9f6f7c3d700c68536f21447dfc598f8c8] https://lava.sirena.org.uk/scheduler/job/2048653 # test job: [3c36965df80801344850388592e95033eceea05b] https://lava.sirena.org.uk/scheduler/job/2049502 # test job: [aa897ffc396b48cc39eee133b6b43175d0df9eb5] https://lava.sirena.org.uk/scheduler/job/2048768 # test job: [c4e68959af66df525d71db619ffe44af9178bb22] https://lava.sirena.org.uk/scheduler/job/2044048 # test job: [380fd29d57abe6679d87ec56babe65ddc5873a37] https://lava.sirena.org.uk/scheduler/job/2044588 # test job: [af9c8092d84244ca54ffb590435735f788e7a170] https://lava.sirena.org.uk/scheduler/job/2043656 # test job: [2ecc8c089802e033d2e5204d21a9f467e2517df9] https://lava.sirena.org.uk/scheduler/job/2038631 # test job: [84194c66aaf78fed150edb217b9f341518b1cba2] https://lava.sirena.org.uk/scheduler/job/2038367 # test job: [252abf2d07d33b1c70a59ba1c9395ba42bbd793e] https://lava.sirena.org.uk/scheduler/job/2038561 # test job: [ed5d499b5c9cc11dd3edae1a7a55db7dfa4f1bdc] https://lava.sirena.org.uk/scheduler/job/2029031 # test job: [e73b743bfe8a6ff4e05b5657d3f7586a17ac3ba0] https://lava.sirena.org.uk/scheduler/job/2026425 # test job: [f1dfbc1b5cf8650ae9a0d543e5f5335fc0f478ce] https://lava.sirena.org.uk/scheduler/job/2025503 # test job: [6ef8e042cdcaabe3e3c68592ba8bfbaee2fa10a3] https://lava.sirena.org.uk/scheduler/job/2025871 # test job: [ecd0de438c1f0ee86cf8f6d5047965a2a181444b] https://lava.sirena.org.uk/scheduler/job/2026135 # test job: [cf6bf51b53252284bafc7377a4d8dbf10f048b4d] https://lava.sirena.org.uk/scheduler/job/2023024 # test job: [20bcda681f8597e86070a4b3b12d1e4f541865d3] https://lava.sirena.org.uk/scheduler/job/2022953 # test job: [e062bdfdd6adbb2dee7751d054c1d8df63ddb8b8] https://lava.sirena.org.uk/scheduler/job/2020135 # test job: [8fdb030fe283c84fd8d378c97ad0f32d6cdec6ce] https://lava.sirena.org.uk/scheduler/job/2021440 # test job: [28039efa4d8e8bbf98b066133a906bd4e307d496] https://lava.sirena.org.uk/scheduler/job/2020322 # test job: [f034c16a4663eaf3198dc18b201ba50533fb5b81] https://lava.sirena.org.uk/scheduler/job/2015432 # test job: [66fecfa91deb536a12ddf3d878a99590d7900277] https://lava.sirena.org.uk/scheduler/job/2015351 # test job: [4a5ac6cd05a7e54f1585d7779464d6ed6272c134] https://lava.sirena.org.uk/scheduler/job/2011285 # test job: [ef042df96d0e1089764f39ede61bc8f140a4be00] https://lava.sirena.org.uk/scheduler/job/2010192 # test job: [4c33cef58965eb655a0ac8e243aa323581ec025f] https://lava.sirena.org.uk/scheduler/job/2009429 # test job: [e7434adf0c53a84d548226304cdb41c8818da1cb] https://lava.sirena.org.uk/scheduler/job/2007770 # test job: [77a58ba7c64ccca20616aa03599766ccb0d1a330] https://lava.sirena.org.uk/scheduler/job/2007322 # test job: [01313661b248c5ba586acae09bff57077dbec0a5] https://lava.sirena.org.uk/scheduler/job/2008874 # test job: [4795375d8aa072e9aacb0b278e6203c6ca41816a] https://lava.sirena.org.uk/scheduler/job/2009678 # test job: [d29479abaded34b2b1dab2e17efe96a65eba3d61] https://lava.sirena.org.uk/scheduler/job/2008461 # test job: [e973dfe9259095fb509ab12658c68d46f0e439d7] https://lava.sirena.org.uk/scheduler/job/2008113 # test job: [c17fa4cbc546c431ccf13e9354d5d9c1cd247b7c] https://lava.sirena.org.uk/scheduler/job/2000039 # test job: [310bf433c01f78e0756fd5056a43118a2f77318c] https://lava.sirena.org.uk/scheduler/job/1996043 # test job: [fd5ef3d69f8975bad16c437a337b5cb04c8217a2] https://lava.sirena.org.uk/scheduler/job/1996112 # test job: [d054cc3a2ccfb19484f3b54d69b6e416832dc8f4] https://lava.sirena.org.uk/scheduler/job/1995713 # test job: [2528c15f314ece50218d1273654f630d74109583] https://lava.sirena.org.uk/scheduler/job/1997616 # test job: [638bae3fb225a708dc67db613af62f6d14c4eff4] https://lava.sirena.org.uk/scheduler/job/1991887 # test job: [ecba655bf54a661ffe078856cd8dbc898270e4b5] https://lava.sirena.org.uk/scheduler/job/1985123 # test job: [7e1906643a7374529af74b013bba35e4fa4e6ffc] https://lava.sirena.org.uk/scheduler/job/1978610 # test job: [d742ebcfe524dc54023f7c520d2ed2e4b7203c19] https://lava.sirena.org.uk/scheduler/job/1975999 # test job: [6658472a3e2de08197acfe099ba71ee0e2505ecf] https://lava.sirena.org.uk/scheduler/job/1973530 # test job: [fce217449075d59b29052b8cdac567f0f3e22641] https://lava.sirena.org.uk/scheduler/job/1975656 # test job: [5677aa6a08c1df8bc1ec71516fe1ced9b7cb545f] https://lava.sirena.org.uk/scheduler/job/1978817 # test job: [0cc08c8130ac8f74419f99fe707dc193b7f79d86] https://lava.sirena.org.uk/scheduler/job/1965701 # test job: [0743acf746a81e0460a56fd5ff847d97fa7eb370] https://lava.sirena.org.uk/scheduler/job/1964858 # test job: [b1fc226edf8680882a5bf89038bdc55afa2ac80d] https://lava.sirena.org.uk/scheduler/job/1978391 # test job: [15afe57a874eaf104bfbb61ec598fa31627f7b19] https://lava.sirena.org.uk/scheduler/job/1962906 # test job: [d77daa49085b067137d0adbe3263f75a7ee13a1b] https://lava.sirena.org.uk/scheduler/job/1962818 # test job: [1e570e77392f43a3cdab2849d1f81535f8a033e2] https://lava.sirena.org.uk/scheduler/job/1962269 # test job: [0d7f4e99217f6f715c7064c67eae8d9d09313b14] https://lava.sirena.org.uk/scheduler/job/1980262 # test job: [fb25114cd760c13cf177d9ac37837fafcc9657b5] https://lava.sirena.org.uk/scheduler/job/1960133 # test job: [65efe5404d151767653c7b7dd39bd2e7ad532c2d] https://lava.sirena.org.uk/scheduler/job/1959948 # test job: [6621b0f118d500092f5f3d72ddddb22aeeb3c3a0] https://lava.sirena.org.uk/scheduler/job/1959732 # test job: [433e294c3c5b5d2020085a0e36c1cb47b694690a] https://lava.sirena.org.uk/scheduler/job/1957354 # test job: [0b0eb7702a9fa410755e86124b4b7cd36e7d1cb4] https://lava.sirena.org.uk/scheduler/job/1957417 # test job: [bf770d6d2097a52d87f4d9c88d0b05bd3998d7de] https://lava.sirena.org.uk/scheduler/job/1984426 # test job: [c2d420796a427dda71a2400909864e7f8e037fd4] https://lava.sirena.org.uk/scheduler/job/1984520 # test job: [7e7e2c6e2a1cb250f8d03bb99eed01f6d982d5dd] https://lava.sirena.org.uk/scheduler/job/1954251 # test job: [4412ab501677606436e5c49e41151a1e6eac7ac0] https://lava.sirena.org.uk/scheduler/job/1946234 # test job: [5e537031f322d55315cd384398b726a9a0748d47] https://lava.sirena.org.uk/scheduler/job/1946679 # test job: [64d87ccfae3326a9561fe41dc6073064a083e0df] https://lava.sirena.org.uk/scheduler/job/1947242 # test job: [4d410ba9aa275e7990a270f63ce436990ace1bea] https://lava.sirena.org.uk/scheduler/job/1947841 # test job: [9797329220a2c6622411eb9ecf6a35b24ce09d04] https://lava.sirena.org.uk/scheduler/job/1947406 # test job: [fe8cc44dd173cde5788ab4e3730ac61f3d316d9c] https://lava.sirena.org.uk/scheduler/job/1946044 # test job: [6277a486a7faaa6c87f4bf1d59a2de233a093248] https://lava.sirena.org.uk/scheduler/job/1947003 # test job: [b83fb1b14c06bdd765903ac852ba20a14e24f227] https://lava.sirena.org.uk/scheduler/job/1946832 # test job: [807c42dd8028d71222dfce035c2e87aaecbf623f] https://lava.sirena.org.uk/scheduler/job/1981864 # test job: [6c177775dcc5e70a64ddf4ee842c66af498f2c7c] https://lava.sirena.org.uk/scheduler/job/1780443 # test job: [fe4d0dea039f2befb93f27569593ec209843b0f5] https://lava.sirena.org.uk/scheduler/job/2106238 # bad: [fe4d0dea039f2befb93f27569593ec209843b0f5] Add linux-next specific files for 20251119 git bisect bad fe4d0dea039f2befb93f27569593ec209843b0f5 # test job: [40506e4c543a64ad5846f0a532d5ea16310fd9e3] https://lava.sirena.org.uk/scheduler/job/2106514 # bad: [40506e4c543a64ad5846f0a532d5ea16310fd9e3] Merge branch 'for-next' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git git bisect bad 40506e4c543a64ad5846f0a532d5ea16310fd9e3 # test job: [e510eda33592ffbe54b55476040348b552674cd3] https://lava.sirena.org.uk/scheduler/job/2106557 # bad: [e510eda33592ffbe54b55476040348b552674cd3] Merge branch 'next' of https://git.kernel.org/pub/scm/linux/kernel/git/uml/linux.git git bisect bad e510eda33592ffbe54b55476040348b552674cd3 # test job: [8903539518403d5e9a7ac09ea2486ed297f337e5] https://lava.sirena.org.uk/scheduler/job/2106617 # bad: [8903539518403d5e9a7ac09ea2486ed297f337e5] Merge branch 'for-next' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux.git git bisect bad 8903539518403d5e9a7ac09ea2486ed297f337e5 # test job: [fb6b3841aabe2098b0610eaf9edac0fc562a122f] https://lava.sirena.org.uk/scheduler/job/2106645 # bad: [fb6b3841aabe2098b0610eaf9edac0fc562a122f] Merge branch 'kbuild-next' of https://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux.git git bisect bad fb6b3841aabe2098b0610eaf9edac0fc562a122f # test job: [f24f3801039f9a2033e3a2390fccc5adc00a8df7] https://lava.sirena.org.uk/scheduler/job/2106738 # good: [f24f3801039f9a2033e3a2390fccc5adc00a8df7] mm: implement sticky VMA flags git bisect good f24f3801039f9a2033e3a2390fccc5adc00a8df7 # test job: [420203301ca3aef72980c78534264c4ec7f672d0] https://lava.sirena.org.uk/scheduler/job/2106793 # good: [420203301ca3aef72980c78534264c4ec7f672d0] Revert "lib/plist.c: enforce memory ordering in plist_check_list" git bisect good 420203301ca3aef72980c78534264c4ec7f672d0 # test job: [259dbf8c45694409126841a8769c111869fec9c8] https://lava.sirena.org.uk/scheduler/job/2106834 # bad: [259dbf8c45694409126841a8769c111869fec9c8] mm/damon/vaddr: consistently use only pmd_entry for damos_migrate git bisect bad 259dbf8c45694409126841a8769c111869fec9c8 # test job: [529b176c64b658d258493a03d88126c69aeae25b] https://lava.sirena.org.uk/scheduler/job/2106989 # bad: [529b176c64b658d258493a03d88126c69aeae25b] mm: replace remaining pte_to_swp_entry() with softleaf_from_pte() git bisect bad 529b176c64b658d258493a03d88126c69aeae25b # test job: [abedb72c9bfdd177a446ed4c29b50d9dea239471] https://lava.sirena.org.uk/scheduler/job/2107057 # bad: [abedb72c9bfdd177a446ed4c29b50d9dea239471] mm: introduce leaf entry type and use to simplify leaf entry logic git bisect bad abedb72c9bfdd177a446ed4c29b50d9dea239471 # test job: [b789b80819cdef357c78e613a28f36d1ef7975bf] https://lava.sirena.org.uk/scheduler/job/2107105 # bad: [b789b80819cdef357c78e613a28f36d1ef7975bf] tools/testing/vma: add VMA sticky userland tests git bisect bad b789b80819cdef357c78e613a28f36d1ef7975bf # test job: [b331f7745489548c5a020301f6f3b4aad20c7b77] https://lava.sirena.org.uk/scheduler/job/2107143 # bad: [b331f7745489548c5a020301f6f3b4aad20c7b77] mm: introduce copy-on-fork VMAs and make VM_MAYBE_GUARD one git bisect bad b331f7745489548c5a020301f6f3b4aad20c7b77 # test job: [2c91ae77d8fbafb153c13e554f50b7bbeef59d76] https://lava.sirena.org.uk/scheduler/job/2107226 # bad: [2c91ae77d8fbafb153c13e554f50b7bbeef59d76] mm-implement-sticky-vma-flags-fix-2 git bisect bad 2c91ae77d8fbafb153c13e554f50b7bbeef59d76 # test job: [79ee48c12ef8fe9a3daf0dbeda74f038a3f557be] https://lava.sirena.org.uk/scheduler/job/2107256 # bad: [79ee48c12ef8fe9a3daf0dbeda74f038a3f557be] mm-implement-sticky-vma-flags-fix git bisect bad 79ee48c12ef8fe9a3daf0dbeda74f038a3f557be # first bad commit: [79ee48c12ef8fe9a3daf0dbeda74f038a3f557be] mm-implement-sticky-vma-flags-fix
On Wed, Nov 19, 2025 at 01:16:36PM +0000, Mark Brown wrote: > On Fri, Nov 07, 2025 at 04:11:48PM +0000, Lorenzo Stoakes wrote: > > It is useful to be able to designate that certain flags are 'sticky', that > > is, if two VMAs are merged one with a flag of this nature and one without, > > the merged VMA sets this flag. > > I'm seeing regressions on multiple arm64 platforms in at least the LTP > clone302 and madvise10 selftests, both of which have bisected to one of > the fixups to this patch. Especially given the other tests that also > bisected to the same place I've not investigated further. There's a > number of other LTP tests that started failing today including relevant > seeming ones munlockall01, mprotect04, madvise10, mprotect03 and > futex_cmp_requeue01 but I don't have bisects to confirm they're the same > thing. > Thanks for the reports! > clone302: > > tst_buffers.c:57: TINFO: Test is using guarded buffers > tst_tmpdir.c:316: TINFO: Using /tmp/LTP_clorMwMMw as tmpdir (nfs filesystem) > tst_test.c:1953: TINFO: LTP version: 20250530 > tst_test.c:1956: TINFO: Tested kernel: 6.18.0-rc6-next-20251119 #1 SMP PREEMPT @1763523415 aarch64 next-20251119 still has the v3 version of the patchset, which is Known Bad(tm) after a couple of buggy fixups. v4 should hopefully work properly. -- Pedro
On Wed, Nov 19, 2025 at 01:27:08PM +0000, Pedro Falcato wrote: > On Wed, Nov 19, 2025 at 01:16:36PM +0000, Mark Brown wrote: > > On Fri, Nov 07, 2025 at 04:11:48PM +0000, Lorenzo Stoakes wrote: > > > It is useful to be able to designate that certain flags are 'sticky', that > > > is, if two VMAs are merged one with a flag of this nature and one without, > > > the merged VMA sets this flag. > > > > I'm seeing regressions on multiple arm64 platforms in at least the LTP > > clone302 and madvise10 selftests, both of which have bisected to one of > > the fixups to this patch. Especially given the other tests that also > > bisected to the same place I've not investigated further. There's a > > number of other LTP tests that started failing today including relevant > > seeming ones munlockall01, mprotect04, madvise10, mprotect03 and > > futex_cmp_requeue01 but I don't have bisects to confirm they're the same > > thing. > > > > Thanks for the reports! > > > clone302: > > > > tst_buffers.c:57: TINFO: Test is using guarded buffers > > tst_tmpdir.c:316: TINFO: Using /tmp/LTP_clorMwMMw as tmpdir (nfs filesystem) > > tst_test.c:1953: TINFO: LTP version: 20250530 > > tst_test.c:1956: TINFO: Tested kernel: 6.18.0-rc6-next-20251119 #1 SMP PREEMPT @1763523415 aarch64 > > next-20251119 still has the v3 version of the patchset, which is Known Bad(tm) > after a couple of buggy fixups. v4 should hopefully work properly. > > -- > Pedro Thanks for the reports Mark and also for following up Pedro, and yeah this should now be fully resolved in v4, see [0]. The fixups were just broken but luckily Pedro noticed the mistake I'd made and so was able to get a fix out quickly! :) [0]:https://lore.kernel.org/all/cover.1763460113.git.lorenzo.stoakes@oracle.com/ Cheers, Lorenzo
On Fri, Nov 07, 2025 at 04:11:48PM +0000, Lorenzo Stoakes wrote: > It is useful to be able to designate that certain flags are 'sticky', that > is, if two VMAs are merged one with a flag of this nature and one without, > the merged VMA sets this flag. I'm seeing a regression in the futex selftests on arm64: # TAP version 13 # 1..1 # # Starting 1 tests from 1 test cases. # # RUN global.futex_numa_mpol ... # # Regular test # # Mis-aligned futex # # Memory out of range # Bail out! futex2_wake(64, 0x86) should fail, but didn't # # Planned tests != run tests (1 != 0) # # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:0 error:0 # # futex_numa_mpol: Test failed # # FAIL global.futex_numa_mpol # not ok 1 global.futex_numa_mpol # # FAILED: 0 / 1 tests passed. which bisect to one of the fixup commits on top of this. I've not done any real analysis on this but it's a test that's generally very stable so I'd be surprised if it's not a real failure. Full log: https://lava.sirena.org.uk/scheduler/job/2106243#L11474 There is also a bisection for the mm mkdirty selftest which runs into the same patch on at least Raspberry Pi 4: # # ----------------- # # running ./mkdirty # # ----------------- # # # [INFO] detected THP size: 2048 KiB # # TAP version 13 # # 1..6 # # # [INFO] PTRACE write access # # ok 1 SIGSEGV generated, page not modified # # # [INFO] PTRACE write access to THP # # ok 2 SIGSEGV generated, page not modified # # # [INFO] Page migration # # not ok 3 SIGSEGV generated, page not modified # # # [INFO] Page migration of THP # # not ok 4 SIGSEGV generated, page not modified # # # [INFO] PTE-mapping a THP # # not ok 5 SIGSEGV generated, page not modified # # # [INFO] UFFDIO_COPY # # ok 6 # SKIP __NR_userfaultfd failed # # Bail out! 3 out of 6 tests failed # # # 1 skipped test(s) detected. Consider enabling relevant config options to improve coverage. # # # Totals: pass:2 fail:3 xfail:0 xpass:0 skip:1 error:0 # # [FAIL] # not ok 61 mkdirty # exit=1 Full log for that: https://lava.sirena.org.uk/scheduler/job/2106236#L6939 and I'm also seeing some LTP failures going into these commits that I'll report separately. bisect log for the futex test: # bad: [fe4d0dea039f2befb93f27569593ec209843b0f5] Add linux-next specific files for 20251119 # good: [ef96b7dd050abd62905588c41ffb397e0c9598c7] Merge branch 'for-linux-next-fixes' of https://gitlab.freedesktop.org/drm/misc/kernel.git # good: [bd79452b39c21599e2cff42e9fbeb182656b6f6a] MAINTAINERS: adjust file entry in RISC-V MICROCHIP SUPPORT # good: [21e68bcb1b0c688c2d9ca0d457922febac650ac1] regulator: renesas-usb-vbus-regulator: Remove unused headers # good: [96498e804cb6629e02747336a0a33e4955449732] spi: davinci: remove platform data header # good: [4422df6782eb7aa9725a3c09d9ba3c38ecc85df4] ASoC: ux500: mop500_ab8500: convert to snd_soc_dapm_xxx() # good: [9e510e677090bb794b46348b10e1c8038286e00a] spi: aspeed: Add support for the AST2700 SPI controller # good: [118eb2cb97b8fc0d515bb0449495959247db58f0] spi: bcm63xx: drop wrong casts in probe() # good: [d5c8b7902a41625ea328b52c78ebe750fbf6fef7] ASoC: Intel: avs: Honor NHLT override when setting up a path # good: [6402ddf3027d8975f135cf2b2014d6bbeb2d3436] MAINTAINERS: refer to trivial-codec.yaml in relevant sections # good: [059f545832be85d29ac9ccc416a16f647aa78485] spi: add support for microchip "soft" spi controller # good: [4e00135b2dd1d7924a58bffa551b6ceb3bd836f2] spi: spi-cadence: supports transmission with bits_per_word of 16 and 32 # good: [e65b871c9b5af9265aefc5b8cd34993586d93aab] ASoC: codecs: pm4125: Remove irq_chip on component unbind # good: [8d63e85c5b50f1dbfa0ccb214bd91fe5d7e2e860] firmware: cs_dsp: fix kernel-doc warnings in a header file # good: [8ff3dcb0e8a8bf6c41f23ed4aa62d066d3948a10] ASoC: codecs: lpass-rx-macro: add SM6115 compatible # good: [123cd174a3782307787268adf45f22de4d290128] ASoC: Intel: atom: Replace strcpy() with strscpy() # good: [1d562ba0aa7df81335bf96c02be77efe8d5bab87] spi: dt-bindings: nuvoton,npcm-pspi: Convert to DT schema # good: [4d6e2211aeb932e096f673c88475016b1cc0f8ab] ASoC: Intel: boards: fix HDMI playback lookup when HDMI-In capture used # good: [32172cf3cb543a04c41a1677c97a38e60cad05b6] ASoC: cs35l56: Allow restoring factory calibration through ALSA control # good: [b3a5302484033331af37569f7277d00131694b57] ASoC: Intel: sof_rt5682: Add quirk override support # good: [873bc94689d832878befbcadc10b6ad5bb4e0027] ASoC: Intel: sof_sdw: add codec speaker support for the SKU # good: [772ada50282b0c80343c8989147db816961f571d] ASoC: cs35l56: Alter error codes for calibration routine # good: [6985defd1d832f1dd9d1977a6a2cc2cef7632704] regmap: sdw-mbq: Reorder regmap_mbq_context struct for better packing # good: [fb1ebb10468da414d57153ddebaab29c38ef1a78] regulator: core: disable supply if enabling main regulator fails # good: [2089f086303b773e181567fd8d5df3038bd85937] regulator: mt6363: Remove unneeded semicolon # good: [6951be397ca8b8b167c9f99b5a11c541148c38cb] ASoC: codecs: pm4125: remove duplicate code # good: [4e92abd0a11b91af3742197a9ca962c3c00d0948] spi: imx: add i.MX51 ECSPI target mode support # good: [abc9a349b87ac0fd3ba8787ca00971b59c2e1257] spi: fsl-qspi: support the SpacemiT K1 SoC # good: [55d03b5b5bdd04daf9a35ce49db18d8bb488dffb] spi: imx: remove CLK calculation and check for target mode # good: [6bd1ad97eb790570c167d4de4ca59fbc9c33722a] regulator: pf9453: Fix kernel doc for mux_poll() # good: [1b0f3f9ee41ee2bdd206667f85ea2aa36dfe6e69] ASoC: SDCA: support Q7.8 volume format # good: [3c36965df80801344850388592e95033eceea05b] regulator: Add support for MediaTek MT6363 SPMI PMIC Regulators # good: [2f538ef9f6f7c3d700c68536f21447dfc598f8c8] spi: aspeed: Use devm_iounmap() to unmap devm_ioremap() memory # good: [aa897ffc396b48cc39eee133b6b43175d0df9eb5] ASoC: dt-bindings: ti,pcm1862: convert to dtschema # good: [655079ac8a7721ac215a0596e3f33b740e01144a] ASoC: qcom: q6asm: Use guard() for spin locks # good: [c4e68959af66df525d71db619ffe44af9178bb22] ASoC: dt-bindings: ti,tas2781: Add TAS5822 support # good: [380fd29d57abe6679d87ec56babe65ddc5873a37] spi: tegra210-quad: Check hardware status on timeout # good: [af9c8092d84244ca54ffb590435735f788e7a170] regmap: i3c: Use ARRAY_SIZE() # good: [84194c66aaf78fed150edb217b9f341518b1cba2] ASoC: codecs: aw88261: pass pointer directly instead of passing the address # good: [252abf2d07d33b1c70a59ba1c9395ba42bbd793e] regulator: Small cleanup in of_get_regulation_constraints() # good: [2ecc8c089802e033d2e5204d21a9f467e2517df9] regulator: pf9453: remove unused I2C_LT register # good: [ed5d499b5c9cc11dd3edae1a7a55db7dfa4f1bdc] regcache: maple: Split ->populate() from ->init() # good: [e73b743bfe8a6ff4e05b5657d3f7586a17ac3ba0] ASoC: soc-core: check ops & auto_selectable_formats in snd_soc_dai_get_fmt() to prevent dereference error # good: [f1dfbc1b5cf8650ae9a0d543e5f5335fc0f478ce] ASoC: max98090/91: fixing the stream index # good: [ecd0de438c1f0ee86cf8f6d5047965a2a181444b] spi: tle62x0: Add newline to sysfs attribute output # good: [6ef8e042cdcaabe3e3c68592ba8bfbaee2fa10a3] ASoC: codec: wm8400: replace printk() calls with dev_*() device aware logging # good: [20bcda681f8597e86070a4b3b12d1e4f541865d3] ASoC: codecs: va-macro: fix revision checking # good: [cf6bf51b53252284bafc7377a4d8dbf10f048b4d] ASoC: cs4271: Add support for the external mclk # good: [28039efa4d8e8bbf98b066133a906bd4e307d496] MAINTAINERS: remove obsolete file entry in DIALOG SEMICONDUCTOR DRIVERS # good: [e062bdfdd6adbb2dee7751d054c1d8df63ddb8b8] regmap: warn users about uninitialized flat cache # good: [8fdb030fe283c84fd8d378c97ad0f32d6cdec6ce] ASoC: qcom: sc7280: make use of common helpers # good: [66fecfa91deb536a12ddf3d878a99590d7900277] ASoC: spacemit: use `depends on` instead of `select` # good: [f034c16a4663eaf3198dc18b201ba50533fb5b81] ASoC: spacemit: add failure check for spacemit_i2s_init_dai() # good: [4a5ac6cd05a7e54f1585d7779464d6ed6272c134] ASoC: sun4i-spdif: Support SPDIF output on A523 family # good: [ef042df96d0e1089764f39ede61bc8f140a4be00] ASoC: SDCA: Add HID button IRQ # good: [4c33cef58965eb655a0ac8e243aa323581ec025f] regulator: pca9450: link regulator inputs to supply groups # good: [01313661b248c5ba586acae09bff57077dbec0a5] regulator: Let raspberrypi drivers depend on ARM # good: [e7434adf0c53a84d548226304cdb41c8818da1cb] ASoC: cs530x: Add SPI bus support for cs530x parts # good: [77a58ba7c64ccca20616aa03599766ccb0d1a330] spi: spi-mem: Trace exec_op # good: [4795375d8aa072e9aacb0b278e6203c6ca41816a] ASoC: cs-amp-lib-test: Add test cases for cs_amp_set_efi_calibration_data() # good: [d29479abaded34b2b1dab2e17efe96a65eba3d61] ASoC: renesas: fsi: Constify struct fsi_stream_handler # good: [e973dfe9259095fb509ab12658c68d46f0e439d7] ASoC: qcom: sm8250: add qrb2210-sndcard compatible string # good: [c17fa4cbc546c431ccf13e9354d5d9c1cd247b7c] ASoC: sdw_utils: add name_prefix for rt1321 part id # good: [2528c15f314ece50218d1273654f630d74109583] ASoC: max98090/91: adding DAPM routing for digital output for max98091 # good: [d054cc3a2ccfb19484f3b54d69b6e416832dc8f4] regulator: rpmh-regulator: Add RPMH regulator support for PMR735D # good: [310bf433c01f78e0756fd5056a43118a2f77318c] ASoC: max98090/91: fixing a space # good: [fd5ef3d69f8975bad16c437a337b5cb04c8217a2] spi: spi-qpic-snand: make qcom_spi_ecc_engine_ops_pipelined const # good: [638bae3fb225a708dc67db613af62f6d14c4eff4] ASoC: max98090/91: added DAPM widget for digital output for max98091 # good: [ecba655bf54a661ffe078856cd8dbc898270e4b5] ASoC: fsl_aud2htx: add IEC958_SUBFRAME_LE format in supported list # good: [7e1906643a7374529af74b013bba35e4fa4e6ffc] ASoC: codecs: va-macro: Clean up on error path in probe() # good: [d742ebcfe524dc54023f7c520d2ed2e4b7203c19] ASoC: soc.h: remove snd_soc_kcontrol_component() # good: [6658472a3e2de08197acfe099ba71ee0e2505ecf] ASoC: amd: amd_sdw: Propagate the PCI subsystem Vendor and Device IDs # good: [fce217449075d59b29052b8cdac567f0f3e22641] ASoC: spacemit: add i2s support for K1 SoC # good: [0cc08c8130ac8f74419f99fe707dc193b7f79d86] spi: aspeed: Fix an IS_ERR() vs NULL bug in probe() # good: [0743acf746a81e0460a56fd5ff847d97fa7eb370] spi: airoha: buffer must be 0xff-ed before writing # good: [d77daa49085b067137d0adbe3263f75a7ee13a1b] spi: aspeed: fix spelling mistake "triming" -> "trimming" # good: [15afe57a874eaf104bfbb61ec598fa31627f7b19] ASoC: dt-bindings: qcom: Add Kaanapali LPASS macro codecs # good: [1e570e77392f43a3cdab2849d1f81535f8a033e2] ASoC: mxs-saif: support usage with simple-audio-card # good: [fb25114cd760c13cf177d9ac37837fafcc9657b5] regulator: sy7636a: add gpios and input regulator # good: [6621b0f118d500092f5f3d72ddddb22aeeb3c3a0] ASoC: codecs: rt5670: use SOC_VALUE_ENUM_SINGLE_DECL for DAC2 L/R MX-1B # good: [65efe5404d151767653c7b7dd39bd2e7ad532c2d] regulator: rpmh-regulator: Add RPMH regulator support for Glymur # good: [433e294c3c5b5d2020085a0e36c1cb47b694690a] regulator: core: forward undervoltage events downstream by default # good: [0b0eb7702a9fa410755e86124b4b7cd36e7d1cb4] ASoC: replace use of system_wq with system_dfl_wq # good: [bf770d6d2097a52d87f4d9c88d0b05bd3998d7de] x86/module: Improve relocation error messages # good: [c2d420796a427dda71a2400909864e7f8e037fd4] elfnote: Change ELFNOTE() to use __UNIQUE_ID() # good: [7e7e2c6e2a1cb250f8d03bb99eed01f6d982d5dd] ASoC: sof-function-topology-lib: escalate the log when missing function topoplogy # good: [64d87ccfae3326a9561fe41dc6073064a083e0df] spi: aspeed: Only map necessary address window region # good: [4d410ba9aa275e7990a270f63ce436990ace1bea] dt-bindings: sound: Update ADMAIF bindings for tegra264 # good: [5e537031f322d55315cd384398b726a9a0748d47] ASoC: codecs: Fix the error of excessive semicolons # good: [4412ab501677606436e5c49e41151a1e6eac7ac0] spi: dt-bindings: spi-qpic-snand: Add IPQ5332 compatible # good: [9797329220a2c6622411eb9ecf6a35b24ce09d04] ASoC: sof-function-topology-lib: escalate the log when missing function topoplogy # good: [fe8cc44dd173cde5788ab4e3730ac61f3d316d9c] spi: dw: add target mode support # good: [6277a486a7faaa6c87f4bf1d59a2de233a093248] regulator: dt-bindings: Convert Dialog DA9211 Regulators to DT schema # good: [b83fb1b14c06bdd765903ac852ba20a14e24f227] spi: offload: Add offset parameter git bisect start 'fe4d0dea039f2befb93f27569593ec209843b0f5' 'ef96b7dd050abd62905588c41ffb397e0c9598c7' 'bd79452b39c21599e2cff42e9fbeb182656b6f6a' '21e68bcb1b0c688c2d9ca0d457922febac650ac1' '96498e804cb6629e02747336a0a33e4955449732' '4422df6782eb7aa9725a3c09d9ba3c38ecc85df4' '9e510e677090bb794b46348b10e1c8038286e00a' '118eb2cb97b8fc0d515bb0449495959247db58f0' 'd5c8b7902a41625ea328b52c78ebe750fbf6fef7' '6402ddf3027d8975f135cf2b2014d6bbeb2d3436' '059f545832be85d29ac9ccc416a16f647aa78485' '4e00135b2dd1d7924a58bffa551b6ceb3bd836f2' 'e65b871c9b5af9265aefc5b8cd34993586d93aab' '8d63e85c5b50f1dbfa0ccb214bd91fe5d7e2e860' '8ff3dcb0e8a8bf6c41f23ed4aa62d066d3948a10' '123cd174a3782307787268adf45f22de4d290128' '1d562ba0aa7df81335bf96c02be77efe8d5bab87' '4d6e2211aeb932e096f673c88475016b1cc0f8ab' '32172cf3cb543a04c41a1677c97a38e60cad05b6' 'b3a5302484033331af37569f7277d00131694b57' '873bc94689d832878befbcadc10b6ad5bb4e0027' '772ada50282b0c80343c8989147db816961f571d' '6985defd1d832f1dd9d1977a6a2cc2cef7632704' 'fb1ebb10468da414d57153ddebaab29c38ef1a78' '2089f086303b773e181567fd8d5df3038bd85937' '6951be397ca8b8b167c9f99b5a11c541148c38cb' '4e92abd0a11b91af3742197a9ca962c3c00d0948' 'abc9a349b87ac0fd3ba8787ca00971b59c2e1257' '55d03b5b5bdd04daf9a35ce49db18d8bb488dffb' '6bd1ad97eb790570c167d4de4ca59fbc9c33722a' '1b0f3f9ee41ee2bdd206667f85ea2aa36dfe6e69' '3c36965df80801344850388592e95033eceea05b' '2f538ef9f6f7c3d700c68536f21447dfc598f8c8' 'aa897ffc396b48cc39eee133b6b43175d0df9eb5' '655079ac8a7721ac215a0596e3f33b740e01144a' 'c4e68959af66df525d71db619ffe44af9178bb22' '380fd29d57abe6679d87ec56babe65ddc5873a37' 'af9c8092d84244ca54ffb590435735f788e7a170' '84194c66aaf78fed150edb217b9f341518b1cba2' '252abf2d07d33b1c70a59ba1c9395ba42bbd793e' '2ecc8c089802e033d2e5204d21a9f467e2517df9' 'ed5d499b5c9cc11dd3edae1a7a55db7dfa4f1bdc' 'e73b743bfe8a6ff4e05b5657d3f7586a17ac3ba0' 'f1dfbc1b5cf8650ae9a0d543e5f5335fc0f478ce' 'ecd0de438c1f0ee86cf8f6d5047965a2a181444b' '6ef8e042cdcaabe3e3c68592ba8bfbaee2fa10a3' '20bcda681f8597e86070a4b3b12d1e4f541865d3' 'cf6bf51b53252284bafc7377a4d8dbf10f048b4d' '28039efa4d8e8bbf98b066133a906bd4e307d496' 'e062bdfdd6adbb2dee7751d054c1d8df63ddb8b8' '8fdb030fe283c84fd8d378c97ad0f32d6cdec6ce' '66fecfa91deb536a12ddf3d878a99590d7900277' 'f034c16a4663eaf3198dc18b201ba50533fb5b81' '4a5ac6cd05a7e54f1585d7779464d6ed6272c134' 'ef042df96d0e1089764f39ede61bc8f140a4be00' '4c33cef58965eb655a0ac8e243aa323581ec025f' '01313661b248c5ba586acae09bff57077dbec0a5' 'e7434adf0c53a84d548226304cdb41c8818da1cb' '77a58ba7c64ccca20616aa03599766ccb0d1a330' '4795375d8aa072e9aacb0b278e6203c6ca41816a' 'd29479abaded34b2b1dab2e17efe96a65eba3d61' 'e973dfe9259095fb509ab12658c68d46f0e439d7' 'c17fa4cbc546c431ccf13e9354d5d9c1cd247b7c' '2528c15f314ece50218d1273654f630d74109583' 'd054cc3a2ccfb19484f3b54d69b6e416832dc8f4' '310bf433c01f78e0756fd5056a43118a2f77318c' 'fd5ef3d69f8975bad16c437a337b5cb04c8217a2' '638bae3fb225a708dc67db613af62f6d14c4eff4' 'ecba655bf54a661ffe078856cd8dbc898270e4b5' '7e1906643a7374529af74b013bba35e4fa4e6ffc' 'd742ebcfe524dc54023f7c520d2ed2e4b7203c19' '6658472a3e2de08197acfe099ba71ee0e2505ecf' 'fce217449075d59b29052b8cdac567f0f3e22641' '0cc08c8130ac8f74419f99fe707dc193b7f79d86' '0743acf746a81e0460a56fd5ff847d97fa7eb370' 'd77daa49085b067137d0adbe3263f75a7ee13a1b' '15afe57a874eaf104bfbb61ec598fa31627f7b19' '1e570e77392f43a3cdab2849d1f81535f8a033e2' 'fb25114cd760c13cf177d9ac37837fafcc9657b5' '6621b0f118d500092f5f3d72ddddb22aeeb3c3a0' '65efe5404d151767653c7b7dd39bd2e7ad532c2d' '433e294c3c5b5d2020085a0e36c1cb47b694690a' '0b0eb7702a9fa410755e86124b4b7cd36e7d1cb4' 'bf770d6d2097a52d87f4d9c88d0b05bd3998d7de' 'c2d420796a427dda71a2400909864e7f8e037fd4' '7e7e2c6e2a1cb250f8d03bb99eed01f6d982d5dd' '64d87ccfae3326a9561fe41dc6073064a083e0df' '4d410ba9aa275e7990a270f63ce436990ace1bea' '5e537031f322d55315cd384398b726a9a0748d47' '4412ab501677606436e5c49e41151a1e6eac7ac0' '9797329220a2c6622411eb9ecf6a35b24ce09d04' 'fe8cc44dd173cde5788ab4e3730ac61f3d316d9c' '6277a486a7faaa6c87f4bf1d59a2de233a093248' 'b83fb1b14c06bdd765903ac852ba20a14e24f227' # test job: [bd79452b39c21599e2cff42e9fbeb182656b6f6a] https://lava.sirena.org.uk/scheduler/job/2104091 # test job: [21e68bcb1b0c688c2d9ca0d457922febac650ac1] https://lava.sirena.org.uk/scheduler/job/2104499 # test job: [96498e804cb6629e02747336a0a33e4955449732] https://lava.sirena.org.uk/scheduler/job/2099744 # test job: [4422df6782eb7aa9725a3c09d9ba3c38ecc85df4] https://lava.sirena.org.uk/scheduler/job/2097747 # test job: [9e510e677090bb794b46348b10e1c8038286e00a] https://lava.sirena.org.uk/scheduler/job/2095684 # test job: [118eb2cb97b8fc0d515bb0449495959247db58f0] https://lava.sirena.org.uk/scheduler/job/2092525 # test job: [d5c8b7902a41625ea328b52c78ebe750fbf6fef7] https://lava.sirena.org.uk/scheduler/job/2092722 # test job: [6402ddf3027d8975f135cf2b2014d6bbeb2d3436] https://lava.sirena.org.uk/scheduler/job/2086597 # test job: [059f545832be85d29ac9ccc416a16f647aa78485] https://lava.sirena.org.uk/scheduler/job/2086754 # test job: [4e00135b2dd1d7924a58bffa551b6ceb3bd836f2] https://lava.sirena.org.uk/scheduler/job/2082525 # test job: [e65b871c9b5af9265aefc5b8cd34993586d93aab] https://lava.sirena.org.uk/scheduler/job/2083134 # test job: [8d63e85c5b50f1dbfa0ccb214bd91fe5d7e2e860] https://lava.sirena.org.uk/scheduler/job/2082576 # test job: [8ff3dcb0e8a8bf6c41f23ed4aa62d066d3948a10] https://lava.sirena.org.uk/scheduler/job/2083116 # test job: [123cd174a3782307787268adf45f22de4d290128] https://lava.sirena.org.uk/scheduler/job/2078967 # test job: [1d562ba0aa7df81335bf96c02be77efe8d5bab87] https://lava.sirena.org.uk/scheduler/job/2078346 # test job: [4d6e2211aeb932e096f673c88475016b1cc0f8ab] https://lava.sirena.org.uk/scheduler/job/2078001 # test job: [32172cf3cb543a04c41a1677c97a38e60cad05b6] https://lava.sirena.org.uk/scheduler/job/2075073 # test job: [b3a5302484033331af37569f7277d00131694b57] https://lava.sirena.org.uk/scheduler/job/2074546 # test job: [873bc94689d832878befbcadc10b6ad5bb4e0027] https://lava.sirena.org.uk/scheduler/job/2074833 # test job: [772ada50282b0c80343c8989147db816961f571d] https://lava.sirena.org.uk/scheduler/job/2069152 # test job: [6985defd1d832f1dd9d1977a6a2cc2cef7632704] https://lava.sirena.org.uk/scheduler/job/2059121 # test job: [fb1ebb10468da414d57153ddebaab29c38ef1a78] https://lava.sirena.org.uk/scheduler/job/2059787 # test job: [2089f086303b773e181567fd8d5df3038bd85937] https://lava.sirena.org.uk/scheduler/job/2058104 # test job: [6951be397ca8b8b167c9f99b5a11c541148c38cb] https://lava.sirena.org.uk/scheduler/job/2055777 # test job: [4e92abd0a11b91af3742197a9ca962c3c00d0948] https://lava.sirena.org.uk/scheduler/job/2055848 # test job: [abc9a349b87ac0fd3ba8787ca00971b59c2e1257] https://lava.sirena.org.uk/scheduler/job/2054637 # test job: [55d03b5b5bdd04daf9a35ce49db18d8bb488dffb] https://lava.sirena.org.uk/scheduler/job/2053889 # test job: [6bd1ad97eb790570c167d4de4ca59fbc9c33722a] https://lava.sirena.org.uk/scheduler/job/2053541 # test job: [1b0f3f9ee41ee2bdd206667f85ea2aa36dfe6e69] https://lava.sirena.org.uk/scheduler/job/2053565 # test job: [3c36965df80801344850388592e95033eceea05b] https://lava.sirena.org.uk/scheduler/job/2049494 # test job: [2f538ef9f6f7c3d700c68536f21447dfc598f8c8] https://lava.sirena.org.uk/scheduler/job/2048656 # test job: [aa897ffc396b48cc39eee133b6b43175d0df9eb5] https://lava.sirena.org.uk/scheduler/job/2048772 # test job: [655079ac8a7721ac215a0596e3f33b740e01144a] https://lava.sirena.org.uk/scheduler/job/2049697 # test job: [c4e68959af66df525d71db619ffe44af9178bb22] https://lava.sirena.org.uk/scheduler/job/2044037 # test job: [380fd29d57abe6679d87ec56babe65ddc5873a37] https://lava.sirena.org.uk/scheduler/job/2044746 # test job: [af9c8092d84244ca54ffb590435735f788e7a170] https://lava.sirena.org.uk/scheduler/job/2043671 # test job: [84194c66aaf78fed150edb217b9f341518b1cba2] https://lava.sirena.org.uk/scheduler/job/2038356 # test job: [252abf2d07d33b1c70a59ba1c9395ba42bbd793e] https://lava.sirena.org.uk/scheduler/job/2038551 # test job: [2ecc8c089802e033d2e5204d21a9f467e2517df9] https://lava.sirena.org.uk/scheduler/job/2038657 # test job: [ed5d499b5c9cc11dd3edae1a7a55db7dfa4f1bdc] https://lava.sirena.org.uk/scheduler/job/2029002 # test job: [e73b743bfe8a6ff4e05b5657d3f7586a17ac3ba0] https://lava.sirena.org.uk/scheduler/job/2026439 # test job: [f1dfbc1b5cf8650ae9a0d543e5f5335fc0f478ce] https://lava.sirena.org.uk/scheduler/job/2025521 # test job: [ecd0de438c1f0ee86cf8f6d5047965a2a181444b] https://lava.sirena.org.uk/scheduler/job/2026118 # test job: [6ef8e042cdcaabe3e3c68592ba8bfbaee2fa10a3] https://lava.sirena.org.uk/scheduler/job/2025847 # test job: [20bcda681f8597e86070a4b3b12d1e4f541865d3] https://lava.sirena.org.uk/scheduler/job/2022995 # test job: [cf6bf51b53252284bafc7377a4d8dbf10f048b4d] https://lava.sirena.org.uk/scheduler/job/2023023 # test job: [28039efa4d8e8bbf98b066133a906bd4e307d496] https://lava.sirena.org.uk/scheduler/job/2020299 # test job: [e062bdfdd6adbb2dee7751d054c1d8df63ddb8b8] https://lava.sirena.org.uk/scheduler/job/2020172 # test job: [8fdb030fe283c84fd8d378c97ad0f32d6cdec6ce] https://lava.sirena.org.uk/scheduler/job/2021459 # test job: [66fecfa91deb536a12ddf3d878a99590d7900277] https://lava.sirena.org.uk/scheduler/job/2015314 # test job: [f034c16a4663eaf3198dc18b201ba50533fb5b81] https://lava.sirena.org.uk/scheduler/job/2015467 # test job: [4a5ac6cd05a7e54f1585d7779464d6ed6272c134] https://lava.sirena.org.uk/scheduler/job/2011273 # test job: [ef042df96d0e1089764f39ede61bc8f140a4be00] https://lava.sirena.org.uk/scheduler/job/2010164 # test job: [4c33cef58965eb655a0ac8e243aa323581ec025f] https://lava.sirena.org.uk/scheduler/job/2009454 # test job: [01313661b248c5ba586acae09bff57077dbec0a5] https://lava.sirena.org.uk/scheduler/job/2008766 # test job: [e7434adf0c53a84d548226304cdb41c8818da1cb] https://lava.sirena.org.uk/scheduler/job/2007795 # test job: [77a58ba7c64ccca20616aa03599766ccb0d1a330] https://lava.sirena.org.uk/scheduler/job/2007309 # test job: [4795375d8aa072e9aacb0b278e6203c6ca41816a] https://lava.sirena.org.uk/scheduler/job/2009693 # test job: [d29479abaded34b2b1dab2e17efe96a65eba3d61] https://lava.sirena.org.uk/scheduler/job/2008426 # test job: [e973dfe9259095fb509ab12658c68d46f0e439d7] https://lava.sirena.org.uk/scheduler/job/2008132 # test job: [c17fa4cbc546c431ccf13e9354d5d9c1cd247b7c] https://lava.sirena.org.uk/scheduler/job/2000029 # test job: [2528c15f314ece50218d1273654f630d74109583] https://lava.sirena.org.uk/scheduler/job/1997624 # test job: [d054cc3a2ccfb19484f3b54d69b6e416832dc8f4] https://lava.sirena.org.uk/scheduler/job/1995769 # test job: [310bf433c01f78e0756fd5056a43118a2f77318c] https://lava.sirena.org.uk/scheduler/job/1996063 # test job: [fd5ef3d69f8975bad16c437a337b5cb04c8217a2] https://lava.sirena.org.uk/scheduler/job/1996144 # test job: [638bae3fb225a708dc67db613af62f6d14c4eff4] https://lava.sirena.org.uk/scheduler/job/1991895 # test job: [ecba655bf54a661ffe078856cd8dbc898270e4b5] https://lava.sirena.org.uk/scheduler/job/1985163 # test job: [7e1906643a7374529af74b013bba35e4fa4e6ffc] https://lava.sirena.org.uk/scheduler/job/1978631 # test job: [d742ebcfe524dc54023f7c520d2ed2e4b7203c19] https://lava.sirena.org.uk/scheduler/job/1975980 # test job: [6658472a3e2de08197acfe099ba71ee0e2505ecf] https://lava.sirena.org.uk/scheduler/job/1975543 # test job: [fce217449075d59b29052b8cdac567f0f3e22641] https://lava.sirena.org.uk/scheduler/job/1975685 # test job: [0cc08c8130ac8f74419f99fe707dc193b7f79d86] https://lava.sirena.org.uk/scheduler/job/1965718 # test job: [0743acf746a81e0460a56fd5ff847d97fa7eb370] https://lava.sirena.org.uk/scheduler/job/1964864 # test job: [d77daa49085b067137d0adbe3263f75a7ee13a1b] https://lava.sirena.org.uk/scheduler/job/1962775 # test job: [15afe57a874eaf104bfbb61ec598fa31627f7b19] https://lava.sirena.org.uk/scheduler/job/1962957 # test job: [1e570e77392f43a3cdab2849d1f81535f8a033e2] https://lava.sirena.org.uk/scheduler/job/1962291 # test job: [fb25114cd760c13cf177d9ac37837fafcc9657b5] https://lava.sirena.org.uk/scheduler/job/1960165 # test job: [6621b0f118d500092f5f3d72ddddb22aeeb3c3a0] https://lava.sirena.org.uk/scheduler/job/1959743 # test job: [65efe5404d151767653c7b7dd39bd2e7ad532c2d] https://lava.sirena.org.uk/scheduler/job/1959980 # test job: [433e294c3c5b5d2020085a0e36c1cb47b694690a] https://lava.sirena.org.uk/scheduler/job/1957437 # test job: [0b0eb7702a9fa410755e86124b4b7cd36e7d1cb4] https://lava.sirena.org.uk/scheduler/job/1957381 # test job: [bf770d6d2097a52d87f4d9c88d0b05bd3998d7de] https://lava.sirena.org.uk/scheduler/job/1986562 # test job: [c2d420796a427dda71a2400909864e7f8e037fd4] https://lava.sirena.org.uk/scheduler/job/1986677 # test job: [7e7e2c6e2a1cb250f8d03bb99eed01f6d982d5dd] https://lava.sirena.org.uk/scheduler/job/1954262 # test job: [64d87ccfae3326a9561fe41dc6073064a083e0df] https://lava.sirena.org.uk/scheduler/job/1947255 # test job: [4d410ba9aa275e7990a270f63ce436990ace1bea] https://lava.sirena.org.uk/scheduler/job/1947749 # test job: [5e537031f322d55315cd384398b726a9a0748d47] https://lava.sirena.org.uk/scheduler/job/1946642 # test job: [4412ab501677606436e5c49e41151a1e6eac7ac0] https://lava.sirena.org.uk/scheduler/job/1946288 # test job: [9797329220a2c6622411eb9ecf6a35b24ce09d04] https://lava.sirena.org.uk/scheduler/job/1947398 # test job: [fe8cc44dd173cde5788ab4e3730ac61f3d316d9c] https://lava.sirena.org.uk/scheduler/job/1946085 # test job: [6277a486a7faaa6c87f4bf1d59a2de233a093248] https://lava.sirena.org.uk/scheduler/job/1947023 # test job: [b83fb1b14c06bdd765903ac852ba20a14e24f227] https://lava.sirena.org.uk/scheduler/job/1946841 # test job: [fe4d0dea039f2befb93f27569593ec209843b0f5] https://lava.sirena.org.uk/scheduler/job/2106243 # bad: [fe4d0dea039f2befb93f27569593ec209843b0f5] Add linux-next specific files for 20251119 git bisect bad fe4d0dea039f2befb93f27569593ec209843b0f5 # test job: [c8e2262ce3e7658f7689975d66bbdecaf2cf95f9] https://lava.sirena.org.uk/scheduler/job/2106516 # bad: [c8e2262ce3e7658f7689975d66bbdecaf2cf95f9] Merge branch 'master' of https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git git bisect bad c8e2262ce3e7658f7689975d66bbdecaf2cf95f9 # test job: [2d48532d7f2e7d165f29ca9f2cdd589d9a8c2554] https://lava.sirena.org.uk/scheduler/job/2106588 # bad: [2d48532d7f2e7d165f29ca9f2cdd589d9a8c2554] Merge branch 'fs-next' of linux-next git bisect bad 2d48532d7f2e7d165f29ca9f2cdd589d9a8c2554 # test job: [f80c4f29e62d88f612101dc7addb0cc7a3bc628d] https://lava.sirena.org.uk/scheduler/job/2106622 # bad: [f80c4f29e62d88f612101dc7addb0cc7a3bc628d] Merge branch 'next' of https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git git bisect bad f80c4f29e62d88f612101dc7addb0cc7a3bc628d # test job: [b7ea3276cbe7ea3cb272c4f7fc0f38db6ea7f1ed] https://lava.sirena.org.uk/scheduler/job/2106673 # bad: [b7ea3276cbe7ea3cb272c4f7fc0f38db6ea7f1ed] Merge branch 'at91-next' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux.git git bisect bad b7ea3276cbe7ea3cb272c4f7fc0f38db6ea7f1ed # test job: [e92c9e71a82b75ce8297b60db4693af85ef4593b] https://lava.sirena.org.uk/scheduler/job/2106728 # bad: [e92c9e71a82b75ce8297b60db4693af85ef4593b] Merge branch 'mm-unstable' of https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm git bisect bad e92c9e71a82b75ce8297b60db4693af85ef4593b # test job: [7d808bf13943f4c6a6142400bffe14267f6dc997] https://lava.sirena.org.uk/scheduler/job/2106774 # good: [7d808bf13943f4c6a6142400bffe14267f6dc997] mm/damon/tests/sysfs-kunit: handle alloc failures on damon_sysfs_test_add_targets() git bisect good 7d808bf13943f4c6a6142400bffe14267f6dc997 # test job: [93f3c3ac6e9a0695dec5ca8c5aa0fdc7ada3293e] https://lava.sirena.org.uk/scheduler/job/2106827 # bad: [93f3c3ac6e9a0695dec5ca8c5aa0fdc7ada3293e] mm: vmstat: correct the comment above preempt_disable_nested() git bisect bad 93f3c3ac6e9a0695dec5ca8c5aa0fdc7ada3293e # test job: [16cdd4e5a52b421b27b598b9eee3cd18212944a1] https://lava.sirena.org.uk/scheduler/job/2106960 # good: [16cdd4e5a52b421b27b598b9eee3cd18212944a1] migrate: optimise alloc_migration_target() git bisect good 16cdd4e5a52b421b27b598b9eee3cd18212944a1 # test job: [3da23b1058cde436f5ab711f4597dbe75865ea38] https://lava.sirena.org.uk/scheduler/job/2107042 # bad: [3da23b1058cde436f5ab711f4597dbe75865ea38] tools/testing/selftests/mm: add smaps visibility guard region test git bisect bad 3da23b1058cde436f5ab711f4597dbe75865ea38 # test job: [6b82275fdba27802ad7ec6910b86d83bea2dda8d] https://lava.sirena.org.uk/scheduler/job/2107095 # good: [6b82275fdba27802ad7ec6910b86d83bea2dda8d] mm: add atomic VMA flags and set VM_MAYBE_GUARD as such git bisect good 6b82275fdba27802ad7ec6910b86d83bea2dda8d # test job: [b331f7745489548c5a020301f6f3b4aad20c7b77] https://lava.sirena.org.uk/scheduler/job/2107146 # bad: [b331f7745489548c5a020301f6f3b4aad20c7b77] mm: introduce copy-on-fork VMAs and make VM_MAYBE_GUARD one git bisect bad b331f7745489548c5a020301f6f3b4aad20c7b77 # test job: [f24f3801039f9a2033e3a2390fccc5adc00a8df7] https://lava.sirena.org.uk/scheduler/job/2107157 # good: [f24f3801039f9a2033e3a2390fccc5adc00a8df7] mm: implement sticky VMA flags git bisect good f24f3801039f9a2033e3a2390fccc5adc00a8df7 # test job: [2c91ae77d8fbafb153c13e554f50b7bbeef59d76] https://lava.sirena.org.uk/scheduler/job/2107231 # bad: [2c91ae77d8fbafb153c13e554f50b7bbeef59d76] mm-implement-sticky-vma-flags-fix-2 git bisect bad 2c91ae77d8fbafb153c13e554f50b7bbeef59d76 # test job: [79ee48c12ef8fe9a3daf0dbeda74f038a3f557be] https://lava.sirena.org.uk/scheduler/job/2107257 # bad: [79ee48c12ef8fe9a3daf0dbeda74f038a3f557be] mm-implement-sticky-vma-flags-fix git bisect bad 79ee48c12ef8fe9a3daf0dbeda74f038a3f557be # first bad commit: [79ee48c12ef8fe9a3daf0dbeda74f038a3f557be] mm-implement-sticky-vma-flags-fix
On Wed, Nov 19, 2025 at 12:55:29PM +0000, Mark Brown wrote: > On Fri, Nov 07, 2025 at 04:11:48PM +0000, Lorenzo Stoakes wrote: > > It is useful to be able to designate that certain flags are 'sticky', that > > is, if two VMAs are merged one with a flag of this nature and one without, > > the merged VMA sets this flag. > > I'm seeing a regression in the futex selftests on arm64: > > # TAP version 13 > # 1..1 > # # Starting 1 tests from 1 test cases. > # # RUN global.futex_numa_mpol ... > # # Regular test > # # Mis-aligned futex > # # Memory out of range > # Bail out! futex2_wake(64, 0x86) should fail, but didn't > # # Planned tests != run tests (1 != 0) > # # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:0 error:0 > # # futex_numa_mpol: Test failed > # # FAIL global.futex_numa_mpol > # not ok 1 global.futex_numa_mpol > # # FAILED: 0 / 1 tests passed. > > which bisect to one of the fixup commits on top of this. I've not done > any real analysis on this but it's a test that's generally very stable > so I'd be surprised if it's not a real failure. Yeah the fixups are known-buggy, apologies (non-fixups are buggy also but in a way that'll be less visible from tests :). I sent a v4 which resolves everything, see [0]. [0]: https://lore.kernel.org/all/cover.1763460113.git.lorenzo.stoakes@oracle.com/ This should land in linux-next relatively soon if not already there. Cheers, Lorenzo > > Full log: > > https://lava.sirena.org.uk/scheduler/job/2106243#L11474 > > There is also a bisection for the mm mkdirty selftest which runs into > the same patch on at least Raspberry Pi 4: > > # # ----------------- > # # running ./mkdirty > # # ----------------- > # # # [INFO] detected THP size: 2048 KiB > # # TAP version 13 > # # 1..6 > # # # [INFO] PTRACE write access > # # ok 1 SIGSEGV generated, page not modified > # # # [INFO] PTRACE write access to THP > # # ok 2 SIGSEGV generated, page not modified > # # # [INFO] Page migration > # # not ok 3 SIGSEGV generated, page not modified > # # # [INFO] Page migration of THP > # # not ok 4 SIGSEGV generated, page not modified > # # # [INFO] PTE-mapping a THP > # # not ok 5 SIGSEGV generated, page not modified > # # # [INFO] UFFDIO_COPY > # # ok 6 # SKIP __NR_userfaultfd failed > # # Bail out! 3 out of 6 tests failed > # # # 1 skipped test(s) detected. Consider enabling relevant config options to improve coverage. > # # # Totals: pass:2 fail:3 xfail:0 xpass:0 skip:1 error:0 > # # [FAIL] > # not ok 61 mkdirty # exit=1 > > Full log for that: > > https://lava.sirena.org.uk/scheduler/job/2106236#L6939 > > and I'm also seeing some LTP failures going into these commits that I'll > report separately. > > bisect log for the futex test: > > # bad: [fe4d0dea039f2befb93f27569593ec209843b0f5] Add linux-next specific files for 20251119 > # good: [ef96b7dd050abd62905588c41ffb397e0c9598c7] Merge branch 'for-linux-next-fixes' of https://gitlab.freedesktop.org/drm/misc/kernel.git > # good: [bd79452b39c21599e2cff42e9fbeb182656b6f6a] MAINTAINERS: adjust file entry in RISC-V MICROCHIP SUPPORT > # good: [21e68bcb1b0c688c2d9ca0d457922febac650ac1] regulator: renesas-usb-vbus-regulator: Remove unused headers > # good: [96498e804cb6629e02747336a0a33e4955449732] spi: davinci: remove platform data header > # good: [4422df6782eb7aa9725a3c09d9ba3c38ecc85df4] ASoC: ux500: mop500_ab8500: convert to snd_soc_dapm_xxx() > # good: [9e510e677090bb794b46348b10e1c8038286e00a] spi: aspeed: Add support for the AST2700 SPI controller > # good: [118eb2cb97b8fc0d515bb0449495959247db58f0] spi: bcm63xx: drop wrong casts in probe() > # good: [d5c8b7902a41625ea328b52c78ebe750fbf6fef7] ASoC: Intel: avs: Honor NHLT override when setting up a path > # good: [6402ddf3027d8975f135cf2b2014d6bbeb2d3436] MAINTAINERS: refer to trivial-codec.yaml in relevant sections > # good: [059f545832be85d29ac9ccc416a16f647aa78485] spi: add support for microchip "soft" spi controller > # good: [4e00135b2dd1d7924a58bffa551b6ceb3bd836f2] spi: spi-cadence: supports transmission with bits_per_word of 16 and 32 > # good: [e65b871c9b5af9265aefc5b8cd34993586d93aab] ASoC: codecs: pm4125: Remove irq_chip on component unbind > # good: [8d63e85c5b50f1dbfa0ccb214bd91fe5d7e2e860] firmware: cs_dsp: fix kernel-doc warnings in a header file > # good: [8ff3dcb0e8a8bf6c41f23ed4aa62d066d3948a10] ASoC: codecs: lpass-rx-macro: add SM6115 compatible > # good: [123cd174a3782307787268adf45f22de4d290128] ASoC: Intel: atom: Replace strcpy() with strscpy() > # good: [1d562ba0aa7df81335bf96c02be77efe8d5bab87] spi: dt-bindings: nuvoton,npcm-pspi: Convert to DT schema > # good: [4d6e2211aeb932e096f673c88475016b1cc0f8ab] ASoC: Intel: boards: fix HDMI playback lookup when HDMI-In capture used > # good: [32172cf3cb543a04c41a1677c97a38e60cad05b6] ASoC: cs35l56: Allow restoring factory calibration through ALSA control > # good: [b3a5302484033331af37569f7277d00131694b57] ASoC: Intel: sof_rt5682: Add quirk override support > # good: [873bc94689d832878befbcadc10b6ad5bb4e0027] ASoC: Intel: sof_sdw: add codec speaker support for the SKU > # good: [772ada50282b0c80343c8989147db816961f571d] ASoC: cs35l56: Alter error codes for calibration routine > # good: [6985defd1d832f1dd9d1977a6a2cc2cef7632704] regmap: sdw-mbq: Reorder regmap_mbq_context struct for better packing > # good: [fb1ebb10468da414d57153ddebaab29c38ef1a78] regulator: core: disable supply if enabling main regulator fails > # good: [2089f086303b773e181567fd8d5df3038bd85937] regulator: mt6363: Remove unneeded semicolon > # good: [6951be397ca8b8b167c9f99b5a11c541148c38cb] ASoC: codecs: pm4125: remove duplicate code > # good: [4e92abd0a11b91af3742197a9ca962c3c00d0948] spi: imx: add i.MX51 ECSPI target mode support > # good: [abc9a349b87ac0fd3ba8787ca00971b59c2e1257] spi: fsl-qspi: support the SpacemiT K1 SoC > # good: [55d03b5b5bdd04daf9a35ce49db18d8bb488dffb] spi: imx: remove CLK calculation and check for target mode > # good: [6bd1ad97eb790570c167d4de4ca59fbc9c33722a] regulator: pf9453: Fix kernel doc for mux_poll() > # good: [1b0f3f9ee41ee2bdd206667f85ea2aa36dfe6e69] ASoC: SDCA: support Q7.8 volume format > # good: [3c36965df80801344850388592e95033eceea05b] regulator: Add support for MediaTek MT6363 SPMI PMIC Regulators > # good: [2f538ef9f6f7c3d700c68536f21447dfc598f8c8] spi: aspeed: Use devm_iounmap() to unmap devm_ioremap() memory > # good: [aa897ffc396b48cc39eee133b6b43175d0df9eb5] ASoC: dt-bindings: ti,pcm1862: convert to dtschema > # good: [655079ac8a7721ac215a0596e3f33b740e01144a] ASoC: qcom: q6asm: Use guard() for spin locks > # good: [c4e68959af66df525d71db619ffe44af9178bb22] ASoC: dt-bindings: ti,tas2781: Add TAS5822 support > # good: [380fd29d57abe6679d87ec56babe65ddc5873a37] spi: tegra210-quad: Check hardware status on timeout > # good: [af9c8092d84244ca54ffb590435735f788e7a170] regmap: i3c: Use ARRAY_SIZE() > # good: [84194c66aaf78fed150edb217b9f341518b1cba2] ASoC: codecs: aw88261: pass pointer directly instead of passing the address > # good: [252abf2d07d33b1c70a59ba1c9395ba42bbd793e] regulator: Small cleanup in of_get_regulation_constraints() > # good: [2ecc8c089802e033d2e5204d21a9f467e2517df9] regulator: pf9453: remove unused I2C_LT register > # good: [ed5d499b5c9cc11dd3edae1a7a55db7dfa4f1bdc] regcache: maple: Split ->populate() from ->init() > # good: [e73b743bfe8a6ff4e05b5657d3f7586a17ac3ba0] ASoC: soc-core: check ops & auto_selectable_formats in snd_soc_dai_get_fmt() to prevent dereference error > # good: [f1dfbc1b5cf8650ae9a0d543e5f5335fc0f478ce] ASoC: max98090/91: fixing the stream index > # good: [ecd0de438c1f0ee86cf8f6d5047965a2a181444b] spi: tle62x0: Add newline to sysfs attribute output > # good: [6ef8e042cdcaabe3e3c68592ba8bfbaee2fa10a3] ASoC: codec: wm8400: replace printk() calls with dev_*() device aware logging > # good: [20bcda681f8597e86070a4b3b12d1e4f541865d3] ASoC: codecs: va-macro: fix revision checking > # good: [cf6bf51b53252284bafc7377a4d8dbf10f048b4d] ASoC: cs4271: Add support for the external mclk > # good: [28039efa4d8e8bbf98b066133a906bd4e307d496] MAINTAINERS: remove obsolete file entry in DIALOG SEMICONDUCTOR DRIVERS > # good: [e062bdfdd6adbb2dee7751d054c1d8df63ddb8b8] regmap: warn users about uninitialized flat cache > # good: [8fdb030fe283c84fd8d378c97ad0f32d6cdec6ce] ASoC: qcom: sc7280: make use of common helpers > # good: [66fecfa91deb536a12ddf3d878a99590d7900277] ASoC: spacemit: use `depends on` instead of `select` > # good: [f034c16a4663eaf3198dc18b201ba50533fb5b81] ASoC: spacemit: add failure check for spacemit_i2s_init_dai() > # good: [4a5ac6cd05a7e54f1585d7779464d6ed6272c134] ASoC: sun4i-spdif: Support SPDIF output on A523 family > # good: [ef042df96d0e1089764f39ede61bc8f140a4be00] ASoC: SDCA: Add HID button IRQ > # good: [4c33cef58965eb655a0ac8e243aa323581ec025f] regulator: pca9450: link regulator inputs to supply groups > # good: [01313661b248c5ba586acae09bff57077dbec0a5] regulator: Let raspberrypi drivers depend on ARM > # good: [e7434adf0c53a84d548226304cdb41c8818da1cb] ASoC: cs530x: Add SPI bus support for cs530x parts > # good: [77a58ba7c64ccca20616aa03599766ccb0d1a330] spi: spi-mem: Trace exec_op > # good: [4795375d8aa072e9aacb0b278e6203c6ca41816a] ASoC: cs-amp-lib-test: Add test cases for cs_amp_set_efi_calibration_data() > # good: [d29479abaded34b2b1dab2e17efe96a65eba3d61] ASoC: renesas: fsi: Constify struct fsi_stream_handler > # good: [e973dfe9259095fb509ab12658c68d46f0e439d7] ASoC: qcom: sm8250: add qrb2210-sndcard compatible string > # good: [c17fa4cbc546c431ccf13e9354d5d9c1cd247b7c] ASoC: sdw_utils: add name_prefix for rt1321 part id > # good: [2528c15f314ece50218d1273654f630d74109583] ASoC: max98090/91: adding DAPM routing for digital output for max98091 > # good: [d054cc3a2ccfb19484f3b54d69b6e416832dc8f4] regulator: rpmh-regulator: Add RPMH regulator support for PMR735D > # good: [310bf433c01f78e0756fd5056a43118a2f77318c] ASoC: max98090/91: fixing a space > # good: [fd5ef3d69f8975bad16c437a337b5cb04c8217a2] spi: spi-qpic-snand: make qcom_spi_ecc_engine_ops_pipelined const > # good: [638bae3fb225a708dc67db613af62f6d14c4eff4] ASoC: max98090/91: added DAPM widget for digital output for max98091 > # good: [ecba655bf54a661ffe078856cd8dbc898270e4b5] ASoC: fsl_aud2htx: add IEC958_SUBFRAME_LE format in supported list > # good: [7e1906643a7374529af74b013bba35e4fa4e6ffc] ASoC: codecs: va-macro: Clean up on error path in probe() > # good: [d742ebcfe524dc54023f7c520d2ed2e4b7203c19] ASoC: soc.h: remove snd_soc_kcontrol_component() > # good: [6658472a3e2de08197acfe099ba71ee0e2505ecf] ASoC: amd: amd_sdw: Propagate the PCI subsystem Vendor and Device IDs > # good: [fce217449075d59b29052b8cdac567f0f3e22641] ASoC: spacemit: add i2s support for K1 SoC > # good: [0cc08c8130ac8f74419f99fe707dc193b7f79d86] spi: aspeed: Fix an IS_ERR() vs NULL bug in probe() > # good: [0743acf746a81e0460a56fd5ff847d97fa7eb370] spi: airoha: buffer must be 0xff-ed before writing > # good: [d77daa49085b067137d0adbe3263f75a7ee13a1b] spi: aspeed: fix spelling mistake "triming" -> "trimming" > # good: [15afe57a874eaf104bfbb61ec598fa31627f7b19] ASoC: dt-bindings: qcom: Add Kaanapali LPASS macro codecs > # good: [1e570e77392f43a3cdab2849d1f81535f8a033e2] ASoC: mxs-saif: support usage with simple-audio-card > # good: [fb25114cd760c13cf177d9ac37837fafcc9657b5] regulator: sy7636a: add gpios and input regulator > # good: [6621b0f118d500092f5f3d72ddddb22aeeb3c3a0] ASoC: codecs: rt5670: use SOC_VALUE_ENUM_SINGLE_DECL for DAC2 L/R MX-1B > # good: [65efe5404d151767653c7b7dd39bd2e7ad532c2d] regulator: rpmh-regulator: Add RPMH regulator support for Glymur > # good: [433e294c3c5b5d2020085a0e36c1cb47b694690a] regulator: core: forward undervoltage events downstream by default > # good: [0b0eb7702a9fa410755e86124b4b7cd36e7d1cb4] ASoC: replace use of system_wq with system_dfl_wq > # good: [bf770d6d2097a52d87f4d9c88d0b05bd3998d7de] x86/module: Improve relocation error messages > # good: [c2d420796a427dda71a2400909864e7f8e037fd4] elfnote: Change ELFNOTE() to use __UNIQUE_ID() > # good: [7e7e2c6e2a1cb250f8d03bb99eed01f6d982d5dd] ASoC: sof-function-topology-lib: escalate the log when missing function topoplogy > # good: [64d87ccfae3326a9561fe41dc6073064a083e0df] spi: aspeed: Only map necessary address window region > # good: [4d410ba9aa275e7990a270f63ce436990ace1bea] dt-bindings: sound: Update ADMAIF bindings for tegra264 > # good: [5e537031f322d55315cd384398b726a9a0748d47] ASoC: codecs: Fix the error of excessive semicolons > # good: [4412ab501677606436e5c49e41151a1e6eac7ac0] spi: dt-bindings: spi-qpic-snand: Add IPQ5332 compatible > # good: [9797329220a2c6622411eb9ecf6a35b24ce09d04] ASoC: sof-function-topology-lib: escalate the log when missing function topoplogy > # good: [fe8cc44dd173cde5788ab4e3730ac61f3d316d9c] spi: dw: add target mode support > # good: [6277a486a7faaa6c87f4bf1d59a2de233a093248] regulator: dt-bindings: Convert Dialog DA9211 Regulators to DT schema > # good: [b83fb1b14c06bdd765903ac852ba20a14e24f227] spi: offload: Add offset parameter > git bisect start 'fe4d0dea039f2befb93f27569593ec209843b0f5' 'ef96b7dd050abd62905588c41ffb397e0c9598c7' 'bd79452b39c21599e2cff42e9fbeb182656b6f6a' '21e68bcb1b0c688c2d9ca0d457922febac650ac1' '96498e804cb6629e02747336a0a33e4955449732' '4422df6782eb7aa9725a3c09d9ba3c38ecc85df4' '9e510e677090bb794b46348b10e1c8038286e00a' '118eb2cb97b8fc0d515bb0449495959247db58f0' 'd5c8b7902a41625ea328b52c78ebe750fbf6fef7' '6402ddf3027d8975f135cf2b2014d6bbeb2d3436' '059f545832be85d29ac9ccc416a16f647aa78485' '4e00135b2dd1d7924a58bffa551b6ceb3bd836f2' 'e65b871c9b5af9265aefc5b8cd34993586d93aab' '8d63e85c5b50f1dbfa0ccb214bd91fe5d7e2e860' '8ff3dcb0e8a8bf6c41f23ed4aa62d066d3948a10' '123cd174a3782307787268adf45f22de4d290128' '1d562ba0aa7df81335bf96c02be77efe8d5bab87' '4d6e2211aeb932e096f673c88475016b1cc0f8ab' '32172cf3cb543a04c41a1677c97a38e60cad05b6' 'b3a5302484033331af37569f7277d00131694b57' '873bc94689d832878befbcadc10b6ad5bb4e0027' '772ada50282b0c80343c8989147db816961f571d' '6985defd1d832f1dd9d1977a6a2cc2cef7632704' 'fb1ebb10468da414d57153ddebaab29c38ef1a78' '2089f086303b773e181567fd8d5df3038bd85937' '6951be397ca8b8b167c9f99b5a11c541148c38cb' '4e92abd0a11b91af3742197a9ca962c3c00d0948' 'abc9a349b87ac0fd3ba8787ca00971b59c2e1257' '55d03b5b5bdd04daf9a35ce49db18d8bb488dffb' '6bd1ad97eb790570c167d4de4ca59fbc9c33722a' '1b0f3f9ee41ee2bdd206667f85ea2aa36dfe6e69' '3c36965df80801344850388592e95033eceea05b' '2f538ef9f6f7c3d700c68536f21447dfc598f8c8' 'aa897ffc396b48cc39eee133b6b43175d0df9eb5' '655079ac8a7721ac215a0596e3f33b740e01144a' 'c4e68959af66df525d71db619ffe44af9178bb22' '380fd29d57abe6679d87ec56babe65ddc5873a37' 'af9c8092d84244ca54ffb590435735f788e7a170' '84194c66aaf78fed150edb217b9f341518b1cba2' '252abf2d07d33b1c70a59ba1c9395ba42bbd793e' '2ecc8c089802e033d2e5204d21a9f467e2517df9' 'ed5d499b5c9cc11dd3edae1a7a55db7dfa4f1bdc' 'e73b743bfe8a6ff4e05b5657d3f7586a17ac3ba0' 'f1dfbc1b5cf8650ae9a0d543e5f5335fc0f478ce' 'ecd0de438c1f0ee86cf8f6d5047965a2a181444b' '6ef8e042cdcaabe3e3c68592ba8bfbaee2fa10a3' '20bcda681f8597e86070a4b3b12d1e4f541865d3' 'cf6bf51b53252284bafc7377a4d8dbf10f048b4d' '28039efa4d8e8bbf98b066133a906bd4e307d496' 'e062bdfdd6adbb2dee7751d054c1d8df63ddb8b8' '8fdb030fe283c84fd8d378c97ad0f32d6cdec6ce' '66fecfa91deb536a12ddf3d878a99590d7900277' 'f034c16a4663eaf3198dc18b201ba50533fb5b81' '4a5ac6cd05a7e54f1585d7779464d6ed6272c134' 'ef042df96d0e1089764f39ede61bc8f140a4be00' '4c33cef58965eb655a0ac8e243aa323581ec025f' '01313661b248c5ba586acae09bff57077dbec0a5' 'e7434adf0c53a84d548226304cdb41c8818da1cb' '77a58ba7c64ccca20616aa03599766ccb0d1a330' '4795375d8aa072e9aacb0b278e6203c6ca41816a' 'd29479abaded34b2b1dab2e17efe96a65eba3d61' 'e973dfe9259095fb509ab12658c68d46f0e439d7' 'c17fa4cbc546c431ccf13e9354d5d9c1cd247b7c' '2528c15f314ece50218d1273654f630d74109583' 'd054cc3a2ccfb19484f3b54d69b6e416832dc8f4' '310bf433c01f78e0756fd5056a43118a2f77318c' 'fd5ef3d69f8975bad16c437a337b5cb04c8217a2' '638bae3fb225a708dc67db613af62f6d14c4eff4' 'ecba655bf54a661ffe078856cd8dbc898270e4b5' '7e1906643a7374529af74b013bba35e4fa4e6ffc' 'd742ebcfe524dc54023f7c520d2ed2e4b7203c19' '6658472a3e2de08197acfe099ba71ee0e2505ecf' 'fce217449075d59b29052b8cdac567f0f3e22641' '0cc08c8130ac8f74419f99fe707dc193b7f79d86' '0743acf746a81e0460a56fd5ff847d97fa7eb370' 'd77daa49085b067137d0adbe3263f75a7ee13a1b' '15afe57a874eaf104bfbb61ec598fa31627f7b19' '1e570e77392f43a3cdab2849d1f81535f8a033e2' 'fb25114cd760c13cf177d9ac37837fafcc9657b5' '6621b0f118d500092f5f3d72ddddb22aeeb3c3a0' '65efe5404d151767653c7b7dd39bd2e7ad532c2d' '433e294c3c5b5d2020085a0e36c1cb47b694690a' '0b0eb7702a9fa410755e86124b4b7cd36e7d1cb4' 'bf770d6d2097a52d87f4d9c88d0b05bd3998d7de' 'c2d420796a427dda71a2400909864e7f8e037fd4' '7e7e2c6e2a1cb250f8d03bb99eed01f6d982d5dd' '64d87ccfae3326a9561fe41dc6073064a083e0df' '4d410ba9aa275e7990a270f63ce436990ace1bea' '5e537031f322d55315cd384398b726a9a0748d47' '4412ab501677606436e5c49e41151a1e6eac7ac0' '9797329220a2c6622411eb9ecf6a35b24ce09d04' 'fe8cc44dd173cde5788ab4e3730ac61f3d316d9c' '6277a486a7faaa6c87f4bf1d59a2de233a093248' 'b83fb1b14c06bdd765903ac852ba20a14e24f227' > # test job: [bd79452b39c21599e2cff42e9fbeb182656b6f6a] https://lava.sirena.org.uk/scheduler/job/2104091 > # test job: [21e68bcb1b0c688c2d9ca0d457922febac650ac1] https://lava.sirena.org.uk/scheduler/job/2104499 > # test job: [96498e804cb6629e02747336a0a33e4955449732] https://lava.sirena.org.uk/scheduler/job/2099744 > # test job: [4422df6782eb7aa9725a3c09d9ba3c38ecc85df4] https://lava.sirena.org.uk/scheduler/job/2097747 > # test job: [9e510e677090bb794b46348b10e1c8038286e00a] https://lava.sirena.org.uk/scheduler/job/2095684 > # test job: [118eb2cb97b8fc0d515bb0449495959247db58f0] https://lava.sirena.org.uk/scheduler/job/2092525 > # test job: [d5c8b7902a41625ea328b52c78ebe750fbf6fef7] https://lava.sirena.org.uk/scheduler/job/2092722 > # test job: [6402ddf3027d8975f135cf2b2014d6bbeb2d3436] https://lava.sirena.org.uk/scheduler/job/2086597 > # test job: [059f545832be85d29ac9ccc416a16f647aa78485] https://lava.sirena.org.uk/scheduler/job/2086754 > # test job: [4e00135b2dd1d7924a58bffa551b6ceb3bd836f2] https://lava.sirena.org.uk/scheduler/job/2082525 > # test job: [e65b871c9b5af9265aefc5b8cd34993586d93aab] https://lava.sirena.org.uk/scheduler/job/2083134 > # test job: [8d63e85c5b50f1dbfa0ccb214bd91fe5d7e2e860] https://lava.sirena.org.uk/scheduler/job/2082576 > # test job: [8ff3dcb0e8a8bf6c41f23ed4aa62d066d3948a10] https://lava.sirena.org.uk/scheduler/job/2083116 > # test job: [123cd174a3782307787268adf45f22de4d290128] https://lava.sirena.org.uk/scheduler/job/2078967 > # test job: [1d562ba0aa7df81335bf96c02be77efe8d5bab87] https://lava.sirena.org.uk/scheduler/job/2078346 > # test job: [4d6e2211aeb932e096f673c88475016b1cc0f8ab] https://lava.sirena.org.uk/scheduler/job/2078001 > # test job: [32172cf3cb543a04c41a1677c97a38e60cad05b6] https://lava.sirena.org.uk/scheduler/job/2075073 > # test job: [b3a5302484033331af37569f7277d00131694b57] https://lava.sirena.org.uk/scheduler/job/2074546 > # test job: [873bc94689d832878befbcadc10b6ad5bb4e0027] https://lava.sirena.org.uk/scheduler/job/2074833 > # test job: [772ada50282b0c80343c8989147db816961f571d] https://lava.sirena.org.uk/scheduler/job/2069152 > # test job: [6985defd1d832f1dd9d1977a6a2cc2cef7632704] https://lava.sirena.org.uk/scheduler/job/2059121 > # test job: [fb1ebb10468da414d57153ddebaab29c38ef1a78] https://lava.sirena.org.uk/scheduler/job/2059787 > # test job: [2089f086303b773e181567fd8d5df3038bd85937] https://lava.sirena.org.uk/scheduler/job/2058104 > # test job: [6951be397ca8b8b167c9f99b5a11c541148c38cb] https://lava.sirena.org.uk/scheduler/job/2055777 > # test job: [4e92abd0a11b91af3742197a9ca962c3c00d0948] https://lava.sirena.org.uk/scheduler/job/2055848 > # test job: [abc9a349b87ac0fd3ba8787ca00971b59c2e1257] https://lava.sirena.org.uk/scheduler/job/2054637 > # test job: [55d03b5b5bdd04daf9a35ce49db18d8bb488dffb] https://lava.sirena.org.uk/scheduler/job/2053889 > # test job: [6bd1ad97eb790570c167d4de4ca59fbc9c33722a] https://lava.sirena.org.uk/scheduler/job/2053541 > # test job: [1b0f3f9ee41ee2bdd206667f85ea2aa36dfe6e69] https://lava.sirena.org.uk/scheduler/job/2053565 > # test job: [3c36965df80801344850388592e95033eceea05b] https://lava.sirena.org.uk/scheduler/job/2049494 > # test job: [2f538ef9f6f7c3d700c68536f21447dfc598f8c8] https://lava.sirena.org.uk/scheduler/job/2048656 > # test job: [aa897ffc396b48cc39eee133b6b43175d0df9eb5] https://lava.sirena.org.uk/scheduler/job/2048772 > # test job: [655079ac8a7721ac215a0596e3f33b740e01144a] https://lava.sirena.org.uk/scheduler/job/2049697 > # test job: [c4e68959af66df525d71db619ffe44af9178bb22] https://lava.sirena.org.uk/scheduler/job/2044037 > # test job: [380fd29d57abe6679d87ec56babe65ddc5873a37] https://lava.sirena.org.uk/scheduler/job/2044746 > # test job: [af9c8092d84244ca54ffb590435735f788e7a170] https://lava.sirena.org.uk/scheduler/job/2043671 > # test job: [84194c66aaf78fed150edb217b9f341518b1cba2] https://lava.sirena.org.uk/scheduler/job/2038356 > # test job: [252abf2d07d33b1c70a59ba1c9395ba42bbd793e] https://lava.sirena.org.uk/scheduler/job/2038551 > # test job: [2ecc8c089802e033d2e5204d21a9f467e2517df9] https://lava.sirena.org.uk/scheduler/job/2038657 > # test job: [ed5d499b5c9cc11dd3edae1a7a55db7dfa4f1bdc] https://lava.sirena.org.uk/scheduler/job/2029002 > # test job: [e73b743bfe8a6ff4e05b5657d3f7586a17ac3ba0] https://lava.sirena.org.uk/scheduler/job/2026439 > # test job: [f1dfbc1b5cf8650ae9a0d543e5f5335fc0f478ce] https://lava.sirena.org.uk/scheduler/job/2025521 > # test job: [ecd0de438c1f0ee86cf8f6d5047965a2a181444b] https://lava.sirena.org.uk/scheduler/job/2026118 > # test job: [6ef8e042cdcaabe3e3c68592ba8bfbaee2fa10a3] https://lava.sirena.org.uk/scheduler/job/2025847 > # test job: [20bcda681f8597e86070a4b3b12d1e4f541865d3] https://lava.sirena.org.uk/scheduler/job/2022995 > # test job: [cf6bf51b53252284bafc7377a4d8dbf10f048b4d] https://lava.sirena.org.uk/scheduler/job/2023023 > # test job: [28039efa4d8e8bbf98b066133a906bd4e307d496] https://lava.sirena.org.uk/scheduler/job/2020299 > # test job: [e062bdfdd6adbb2dee7751d054c1d8df63ddb8b8] https://lava.sirena.org.uk/scheduler/job/2020172 > # test job: [8fdb030fe283c84fd8d378c97ad0f32d6cdec6ce] https://lava.sirena.org.uk/scheduler/job/2021459 > # test job: [66fecfa91deb536a12ddf3d878a99590d7900277] https://lava.sirena.org.uk/scheduler/job/2015314 > # test job: [f034c16a4663eaf3198dc18b201ba50533fb5b81] https://lava.sirena.org.uk/scheduler/job/2015467 > # test job: [4a5ac6cd05a7e54f1585d7779464d6ed6272c134] https://lava.sirena.org.uk/scheduler/job/2011273 > # test job: [ef042df96d0e1089764f39ede61bc8f140a4be00] https://lava.sirena.org.uk/scheduler/job/2010164 > # test job: [4c33cef58965eb655a0ac8e243aa323581ec025f] https://lava.sirena.org.uk/scheduler/job/2009454 > # test job: [01313661b248c5ba586acae09bff57077dbec0a5] https://lava.sirena.org.uk/scheduler/job/2008766 > # test job: [e7434adf0c53a84d548226304cdb41c8818da1cb] https://lava.sirena.org.uk/scheduler/job/2007795 > # test job: [77a58ba7c64ccca20616aa03599766ccb0d1a330] https://lava.sirena.org.uk/scheduler/job/2007309 > # test job: [4795375d8aa072e9aacb0b278e6203c6ca41816a] https://lava.sirena.org.uk/scheduler/job/2009693 > # test job: [d29479abaded34b2b1dab2e17efe96a65eba3d61] https://lava.sirena.org.uk/scheduler/job/2008426 > # test job: [e973dfe9259095fb509ab12658c68d46f0e439d7] https://lava.sirena.org.uk/scheduler/job/2008132 > # test job: [c17fa4cbc546c431ccf13e9354d5d9c1cd247b7c] https://lava.sirena.org.uk/scheduler/job/2000029 > # test job: [2528c15f314ece50218d1273654f630d74109583] https://lava.sirena.org.uk/scheduler/job/1997624 > # test job: [d054cc3a2ccfb19484f3b54d69b6e416832dc8f4] https://lava.sirena.org.uk/scheduler/job/1995769 > # test job: [310bf433c01f78e0756fd5056a43118a2f77318c] https://lava.sirena.org.uk/scheduler/job/1996063 > # test job: [fd5ef3d69f8975bad16c437a337b5cb04c8217a2] https://lava.sirena.org.uk/scheduler/job/1996144 > # test job: [638bae3fb225a708dc67db613af62f6d14c4eff4] https://lava.sirena.org.uk/scheduler/job/1991895 > # test job: [ecba655bf54a661ffe078856cd8dbc898270e4b5] https://lava.sirena.org.uk/scheduler/job/1985163 > # test job: [7e1906643a7374529af74b013bba35e4fa4e6ffc] https://lava.sirena.org.uk/scheduler/job/1978631 > # test job: [d742ebcfe524dc54023f7c520d2ed2e4b7203c19] https://lava.sirena.org.uk/scheduler/job/1975980 > # test job: [6658472a3e2de08197acfe099ba71ee0e2505ecf] https://lava.sirena.org.uk/scheduler/job/1975543 > # test job: [fce217449075d59b29052b8cdac567f0f3e22641] https://lava.sirena.org.uk/scheduler/job/1975685 > # test job: [0cc08c8130ac8f74419f99fe707dc193b7f79d86] https://lava.sirena.org.uk/scheduler/job/1965718 > # test job: [0743acf746a81e0460a56fd5ff847d97fa7eb370] https://lava.sirena.org.uk/scheduler/job/1964864 > # test job: [d77daa49085b067137d0adbe3263f75a7ee13a1b] https://lava.sirena.org.uk/scheduler/job/1962775 > # test job: [15afe57a874eaf104bfbb61ec598fa31627f7b19] https://lava.sirena.org.uk/scheduler/job/1962957 > # test job: [1e570e77392f43a3cdab2849d1f81535f8a033e2] https://lava.sirena.org.uk/scheduler/job/1962291 > # test job: [fb25114cd760c13cf177d9ac37837fafcc9657b5] https://lava.sirena.org.uk/scheduler/job/1960165 > # test job: [6621b0f118d500092f5f3d72ddddb22aeeb3c3a0] https://lava.sirena.org.uk/scheduler/job/1959743 > # test job: [65efe5404d151767653c7b7dd39bd2e7ad532c2d] https://lava.sirena.org.uk/scheduler/job/1959980 > # test job: [433e294c3c5b5d2020085a0e36c1cb47b694690a] https://lava.sirena.org.uk/scheduler/job/1957437 > # test job: [0b0eb7702a9fa410755e86124b4b7cd36e7d1cb4] https://lava.sirena.org.uk/scheduler/job/1957381 > # test job: [bf770d6d2097a52d87f4d9c88d0b05bd3998d7de] https://lava.sirena.org.uk/scheduler/job/1986562 > # test job: [c2d420796a427dda71a2400909864e7f8e037fd4] https://lava.sirena.org.uk/scheduler/job/1986677 > # test job: [7e7e2c6e2a1cb250f8d03bb99eed01f6d982d5dd] https://lava.sirena.org.uk/scheduler/job/1954262 > # test job: [64d87ccfae3326a9561fe41dc6073064a083e0df] https://lava.sirena.org.uk/scheduler/job/1947255 > # test job: [4d410ba9aa275e7990a270f63ce436990ace1bea] https://lava.sirena.org.uk/scheduler/job/1947749 > # test job: [5e537031f322d55315cd384398b726a9a0748d47] https://lava.sirena.org.uk/scheduler/job/1946642 > # test job: [4412ab501677606436e5c49e41151a1e6eac7ac0] https://lava.sirena.org.uk/scheduler/job/1946288 > # test job: [9797329220a2c6622411eb9ecf6a35b24ce09d04] https://lava.sirena.org.uk/scheduler/job/1947398 > # test job: [fe8cc44dd173cde5788ab4e3730ac61f3d316d9c] https://lava.sirena.org.uk/scheduler/job/1946085 > # test job: [6277a486a7faaa6c87f4bf1d59a2de233a093248] https://lava.sirena.org.uk/scheduler/job/1947023 > # test job: [b83fb1b14c06bdd765903ac852ba20a14e24f227] https://lava.sirena.org.uk/scheduler/job/1946841 > # test job: [fe4d0dea039f2befb93f27569593ec209843b0f5] https://lava.sirena.org.uk/scheduler/job/2106243 > # bad: [fe4d0dea039f2befb93f27569593ec209843b0f5] Add linux-next specific files for 20251119 > git bisect bad fe4d0dea039f2befb93f27569593ec209843b0f5 > # test job: [c8e2262ce3e7658f7689975d66bbdecaf2cf95f9] https://lava.sirena.org.uk/scheduler/job/2106516 > # bad: [c8e2262ce3e7658f7689975d66bbdecaf2cf95f9] Merge branch 'master' of https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git > git bisect bad c8e2262ce3e7658f7689975d66bbdecaf2cf95f9 > # test job: [2d48532d7f2e7d165f29ca9f2cdd589d9a8c2554] https://lava.sirena.org.uk/scheduler/job/2106588 > # bad: [2d48532d7f2e7d165f29ca9f2cdd589d9a8c2554] Merge branch 'fs-next' of linux-next > git bisect bad 2d48532d7f2e7d165f29ca9f2cdd589d9a8c2554 > # test job: [f80c4f29e62d88f612101dc7addb0cc7a3bc628d] https://lava.sirena.org.uk/scheduler/job/2106622 > # bad: [f80c4f29e62d88f612101dc7addb0cc7a3bc628d] Merge branch 'next' of https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git > git bisect bad f80c4f29e62d88f612101dc7addb0cc7a3bc628d > # test job: [b7ea3276cbe7ea3cb272c4f7fc0f38db6ea7f1ed] https://lava.sirena.org.uk/scheduler/job/2106673 > # bad: [b7ea3276cbe7ea3cb272c4f7fc0f38db6ea7f1ed] Merge branch 'at91-next' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux.git > git bisect bad b7ea3276cbe7ea3cb272c4f7fc0f38db6ea7f1ed > # test job: [e92c9e71a82b75ce8297b60db4693af85ef4593b] https://lava.sirena.org.uk/scheduler/job/2106728 > # bad: [e92c9e71a82b75ce8297b60db4693af85ef4593b] Merge branch 'mm-unstable' of https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm > git bisect bad e92c9e71a82b75ce8297b60db4693af85ef4593b > # test job: [7d808bf13943f4c6a6142400bffe14267f6dc997] https://lava.sirena.org.uk/scheduler/job/2106774 > # good: [7d808bf13943f4c6a6142400bffe14267f6dc997] mm/damon/tests/sysfs-kunit: handle alloc failures on damon_sysfs_test_add_targets() > git bisect good 7d808bf13943f4c6a6142400bffe14267f6dc997 > # test job: [93f3c3ac6e9a0695dec5ca8c5aa0fdc7ada3293e] https://lava.sirena.org.uk/scheduler/job/2106827 > # bad: [93f3c3ac6e9a0695dec5ca8c5aa0fdc7ada3293e] mm: vmstat: correct the comment above preempt_disable_nested() > git bisect bad 93f3c3ac6e9a0695dec5ca8c5aa0fdc7ada3293e > # test job: [16cdd4e5a52b421b27b598b9eee3cd18212944a1] https://lava.sirena.org.uk/scheduler/job/2106960 > # good: [16cdd4e5a52b421b27b598b9eee3cd18212944a1] migrate: optimise alloc_migration_target() > git bisect good 16cdd4e5a52b421b27b598b9eee3cd18212944a1 > # test job: [3da23b1058cde436f5ab711f4597dbe75865ea38] https://lava.sirena.org.uk/scheduler/job/2107042 > # bad: [3da23b1058cde436f5ab711f4597dbe75865ea38] tools/testing/selftests/mm: add smaps visibility guard region test > git bisect bad 3da23b1058cde436f5ab711f4597dbe75865ea38 > # test job: [6b82275fdba27802ad7ec6910b86d83bea2dda8d] https://lava.sirena.org.uk/scheduler/job/2107095 > # good: [6b82275fdba27802ad7ec6910b86d83bea2dda8d] mm: add atomic VMA flags and set VM_MAYBE_GUARD as such > git bisect good 6b82275fdba27802ad7ec6910b86d83bea2dda8d > # test job: [b331f7745489548c5a020301f6f3b4aad20c7b77] https://lava.sirena.org.uk/scheduler/job/2107146 > # bad: [b331f7745489548c5a020301f6f3b4aad20c7b77] mm: introduce copy-on-fork VMAs and make VM_MAYBE_GUARD one > git bisect bad b331f7745489548c5a020301f6f3b4aad20c7b77 > # test job: [f24f3801039f9a2033e3a2390fccc5adc00a8df7] https://lava.sirena.org.uk/scheduler/job/2107157 > # good: [f24f3801039f9a2033e3a2390fccc5adc00a8df7] mm: implement sticky VMA flags > git bisect good f24f3801039f9a2033e3a2390fccc5adc00a8df7 > # test job: [2c91ae77d8fbafb153c13e554f50b7bbeef59d76] https://lava.sirena.org.uk/scheduler/job/2107231 > # bad: [2c91ae77d8fbafb153c13e554f50b7bbeef59d76] mm-implement-sticky-vma-flags-fix-2 > git bisect bad 2c91ae77d8fbafb153c13e554f50b7bbeef59d76 > # test job: [79ee48c12ef8fe9a3daf0dbeda74f038a3f557be] https://lava.sirena.org.uk/scheduler/job/2107257 > # bad: [79ee48c12ef8fe9a3daf0dbeda74f038a3f557be] mm-implement-sticky-vma-flags-fix > git bisect bad 79ee48c12ef8fe9a3daf0dbeda74f038a3f557be > # first bad commit: [79ee48c12ef8fe9a3daf0dbeda74f038a3f557be] mm-implement-sticky-vma-flags-fix
Hi Andrew,
Sorry to be a pain here, and can respin if it's easier, but can we update the
text of the comments below? As in discussion with Liam off-list we agreed that
the current wording is rather unclear and we can do a lot better.
I provide the improved version inline below:
On Fri, Nov 07, 2025 at 04:11:48PM +0000, Lorenzo Stoakes wrote:
> It is useful to be able to designate that certain flags are 'sticky', that
> is, if two VMAs are merged one with a flag of this nature and one without,
> the merged VMA sets this flag.
>
> As a result we ignore these flags for the purposes of determining VMA flag
> differences between VMAs being considered for merge.
>
> This patch therefore updates the VMA merge logic to perform this action,
> with flags possessing this property being described in the VM_STICKY
> bitmap.
>
> Those flags which ought to be ignored for the purposes of VMA merge are
> described in the VM_IGNORE_MERGE bitmap, which the VMA merge logic is also
> updated to use.
>
> As part of this change we place VM_SOFTDIRTY in VM_IGNORE_MERGE as it
> already had this behaviour, alongside VM_STICKY as sticky flags by
> implication must not disallow merge.
>
> Ultimately it seems that we should make VM_SOFTDIRTY a sticky flag in its
> own right, but this change is out of scope for this series.
>
> The only sticky flag designated as such is VM_MAYBE_GUARD, so as a result
> of this change, once the VMA flag is set upon guard region installation,
> VMAs with guard ranges will now not have their merge behaviour impacted as
> a result and can be freely merged with other VMAs without VM_MAYBE_GUARD
> set.
>
> We also update the VMA userland tests to account for the changes.
>
> Reviewed-by: Pedro Falcato <pfalcato@suse.de>
> Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
> Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
> ---
> include/linux/mm.h | 29 +++++++++++++++++++++++++++++
> mm/vma.c | 22 ++++++++++++----------
> tools/testing/vma/vma_internal.h | 29 +++++++++++++++++++++++++++++
> 3 files changed, 70 insertions(+), 10 deletions(-)
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 699566c21ff7..6c1c459e9acb 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -527,6 +527,35 @@ extern unsigned int kobjsize(const void *objp);
> #endif
> #define VM_FLAGS_CLEAR (ARCH_VM_PKEY_FLAGS | VM_ARCH_CLEAR)
>
> +/*
> + * Flags which should be 'sticky' on merge - that is, flags which, when one VMA
> + * possesses it but the other does not, the merged VMA should nonetheless have
> + * applied to it:
> + *
> + * VM_MAYBE_GUARD - If a VMA may have guard regions in place it implies that
> + * mapped page tables may contain metadata not described by the
> + * VMA and thus any merged VMA may also contain this metadata,
> + * and thus we must make this flag sticky.
> + */
> +#define VM_STICKY VM_MAYBE_GUARD
> +
> +/*
> + * VMA flags we ignore for the purposes of merge, i.e. one VMA possessing one
> + * of these flags and the other not does not preclude a merge.
> + *
> + * VM_SOFTDIRTY - Should not prevent from VMA merging, if we match the flags but
> + * dirty bit -- the caller should mark merged VMA as dirty. If
> + * dirty bit won't be excluded from comparison, we increase
> + * pressure on the memory system forcing the kernel to generate
> + * new VMAs when old one could be extended instead.
> + *
Could you replace this:
> + * VM_STICKY - If one VMA has flags which most be 'sticky', that is ones
> + * which should propagate to all VMAs, but the other does not,
> + * the merge should still proceed with the merge logic applying
> + * sticky flags to the final VMA.
With this:
* VM_STICKY - When merging VMAs, VMA flags must match, unless they are
* 'sticky'. If any sticky flags exist in either VMA, we simply
* set all of them on the merged VMA.
> + */
> +#define VM_IGNORE_MERGE (VM_SOFTDIRTY | VM_STICKY)
> +
> /*
> * mapping from the currently active vm_flags protection bits (the
> * low four bits) to a page protection mask..
> diff --git a/mm/vma.c b/mm/vma.c
> index 0c5e391fe2e2..6cb082bc5e29 100644
> --- a/mm/vma.c
> +++ b/mm/vma.c
> @@ -89,15 +89,7 @@ static inline bool is_mergeable_vma(struct vma_merge_struct *vmg, bool merge_nex
>
> if (!mpol_equal(vmg->policy, vma_policy(vma)))
> return false;
> - /*
> - * VM_SOFTDIRTY should not prevent from VMA merging, if we
> - * match the flags but dirty bit -- the caller should mark
> - * merged VMA as dirty. If dirty bit won't be excluded from
> - * comparison, we increase pressure on the memory system forcing
> - * the kernel to generate new VMAs when old one could be
> - * extended instead.
> - */
> - if ((vma->vm_flags ^ vmg->vm_flags) & ~VM_SOFTDIRTY)
> + if ((vma->vm_flags ^ vmg->vm_flags) & ~VM_IGNORE_MERGE)
> return false;
> if (vma->vm_file != vmg->file)
> return false;
> @@ -808,6 +800,7 @@ static bool can_merge_remove_vma(struct vm_area_struct *vma)
> static __must_check struct vm_area_struct *vma_merge_existing_range(
> struct vma_merge_struct *vmg)
> {
> + vm_flags_t sticky_flags = vmg->vm_flags & VM_STICKY;
> struct vm_area_struct *middle = vmg->middle;
> struct vm_area_struct *prev = vmg->prev;
> struct vm_area_struct *next;
> @@ -900,11 +893,13 @@ static __must_check struct vm_area_struct *vma_merge_existing_range(
> if (merge_right) {
> vma_start_write(next);
> vmg->target = next;
> + sticky_flags |= (next->vm_flags & VM_STICKY);
> }
>
> if (merge_left) {
> vma_start_write(prev);
> vmg->target = prev;
> + sticky_flags |= (prev->vm_flags & VM_STICKY);
> }
>
> if (merge_both) {
> @@ -974,6 +969,7 @@ static __must_check struct vm_area_struct *vma_merge_existing_range(
> if (err || commit_merge(vmg))
> goto abort;
>
> + vm_flags_set(vmg->target, sticky_flags);
> khugepaged_enter_vma(vmg->target, vmg->vm_flags);
> vmg->state = VMA_MERGE_SUCCESS;
> return vmg->target;
> @@ -1124,6 +1120,10 @@ int vma_expand(struct vma_merge_struct *vmg)
> bool remove_next = false;
> struct vm_area_struct *target = vmg->target;
> struct vm_area_struct *next = vmg->next;
> + vm_flags_t sticky_flags;
> +
> + sticky_flags = vmg->vm_flags & VM_STICKY;
> + sticky_flags |= target->vm_flags & VM_STICKY;
>
> VM_WARN_ON_VMG(!target, vmg);
>
> @@ -1133,6 +1133,7 @@ int vma_expand(struct vma_merge_struct *vmg)
> if (next && (target != next) && (vmg->end == next->vm_end)) {
> int ret;
>
> + sticky_flags |= next->vm_flags & VM_STICKY;
> remove_next = true;
> /* This should already have been checked by this point. */
> VM_WARN_ON_VMG(!can_merge_remove_vma(next), vmg);
> @@ -1159,6 +1160,7 @@ int vma_expand(struct vma_merge_struct *vmg)
> if (commit_merge(vmg))
> goto nomem;
>
> + vm_flags_set(target, sticky_flags);
> return 0;
>
> nomem:
> @@ -1902,7 +1904,7 @@ static int anon_vma_compatible(struct vm_area_struct *a, struct vm_area_struct *
> return a->vm_end == b->vm_start &&
> mpol_equal(vma_policy(a), vma_policy(b)) &&
> a->vm_file == b->vm_file &&
> - !((a->vm_flags ^ b->vm_flags) & ~(VM_ACCESS_FLAGS | VM_SOFTDIRTY)) &&
> + !((a->vm_flags ^ b->vm_flags) & ~(VM_ACCESS_FLAGS | VM_IGNORE_MERGE)) &&
> b->vm_pgoff == a->vm_pgoff + ((b->vm_start - a->vm_start) >> PAGE_SHIFT);
> }
>
> diff --git a/tools/testing/vma/vma_internal.h b/tools/testing/vma/vma_internal.h
> index 46acb4df45de..a54990aa3009 100644
> --- a/tools/testing/vma/vma_internal.h
> +++ b/tools/testing/vma/vma_internal.h
> @@ -117,6 +117,35 @@ extern unsigned long dac_mmap_min_addr;
> #define VM_SEALED VM_NONE
> #endif
>
> +/*
> + * Flags which should be 'sticky' on merge - that is, flags which, when one VMA
> + * possesses it but the other does not, the merged VMA should nonetheless have
> + * applied to it:
> + *
> + * VM_MAYBE_GUARD - If a VMA may have guard regions in place it implies that
> + * mapped page tables may contain metadata not described by the
> + * VMA and thus any merged VMA may also contain this metadata,
> + * and thus we must make this flag sticky.
> + */
> +#define VM_STICKY VM_MAYBE_GUARD
> +
> +/*
> + * VMA flags we ignore for the purposes of merge, i.e. one VMA possessing one
> + * of these flags and the other not does not preclude a merge.
> + *
> + * VM_SOFTDIRTY - Should not prevent from VMA merging, if we match the flags but
> + * dirty bit -- the caller should mark merged VMA as dirty. If
> + * dirty bit won't be excluded from comparison, we increase
> + * pressure on the memory system forcing the kernel to generate
> + * new VMAs when old one could be extended instead.
> + *
Also here, we dupicate this for the VMA unit tests, could we replace:
> + * VM_STICKY - If one VMA has flags which most be 'sticky', that is ones
> + * which should propagate to all VMAs, but the other does not,
> + * the merge should still proceed with the merge logic applying
> + * sticky flags to the final VMA.
With:
* VM_STICKY - When merging VMAs, VMA flags must match, unless they are
* 'sticky'. If any sticky flags exist in either VMA, we simply
* set all of them on the merged VMA.
> + */
> +#define VM_IGNORE_MERGE (VM_SOFTDIRTY | VM_STICKY)
> +
> #define FIRST_USER_ADDRESS 0UL
> #define USER_PGTABLES_CEILING 0UL
>
> --
> 2.51.0
>
Thanks, Lorenzo
On Mon, 17 Nov 2025 20:02:03 +0000 Lorenzo Stoakes <lorenzo.stoakes@oracle.com> wrote: > Sorry to be a pain here, and can respin if it's easier, but can we update the > text of the comments below? As in discussion with Liam off-list we agreed that > the current wording is rather unclear and we can do a lot better. > > I provide the improved version inline below: np, include/linux/mm.h | 7 +++---- tools/testing/vma/vma_internal.h | 7 +++---- 2 files changed, 6 insertions(+), 8 deletions(-) --- a/include/linux/mm.h~mm-implement-sticky-vma-flags-fix-2 +++ a/include/linux/mm.h @@ -549,10 +549,9 @@ extern unsigned int kobjsize(const void * pressure on the memory system forcing the kernel to generate * new VMAs when old one could be extended instead. * - * VM_STICKY - If one VMA has flags which most be 'sticky', that is ones - * which should propagate to all VMAs, but the other does not, - * the merge should still proceed with the merge logic applying - * sticky flags to the final VMA. + * VM_STICKY - When merging VMAs, VMA flags must match, unless they are + * 'sticky'. If any sticky flags exist in either VMA, we simply + * set all of them on the merged VMA. */ #define VM_IGNORE_MERGE (VM_SOFTDIRTY | VM_STICKY) --- a/tools/testing/vma/vma_internal.h~mm-implement-sticky-vma-flags-fix-2 +++ a/tools/testing/vma/vma_internal.h @@ -139,10 +139,9 @@ extern unsigned long dac_mmap_min_addr; * pressure on the memory system forcing the kernel to generate * new VMAs when old one could be extended instead. * - * VM_STICKY - If one VMA has flags which most be 'sticky', that is ones - * which should propagate to all VMAs, but the other does not, - * the merge should still proceed with the merge logic applying - * sticky flags to the final VMA. + * VM_STICKY - When merging VMAs, VMA flags must match, unless they are + * 'sticky'. If any sticky flags exist in either VMA, we simply + * set all of them on the merged VMA. */ #define VM_IGNORE_MERGE (VM_SOFTDIRTY | VM_STICKY) _
On Mon, Nov 17, 2025 at 02:43:32PM -0800, Andrew Morton wrote: > On Mon, 17 Nov 2025 20:02:03 +0000 Lorenzo Stoakes <lorenzo.stoakes@oracle.com> wrote: > > > Sorry to be a pain here, and can respin if it's easier, but can we update the > > text of the comments below? As in discussion with Liam off-list we agreed that > > the current wording is rather unclear and we can do a lot better. > > > > I provide the improved version inline below: > > np, > > include/linux/mm.h | 7 +++---- > tools/testing/vma/vma_internal.h | 7 +++---- > 2 files changed, 6 insertions(+), 8 deletions(-) > > --- a/include/linux/mm.h~mm-implement-sticky-vma-flags-fix-2 > +++ a/include/linux/mm.h > @@ -549,10 +549,9 @@ extern unsigned int kobjsize(const void > * pressure on the memory system forcing the kernel to generate > * new VMAs when old one could be extended instead. > * > - * VM_STICKY - If one VMA has flags which most be 'sticky', that is ones > - * which should propagate to all VMAs, but the other does not, > - * the merge should still proceed with the merge logic applying > - * sticky flags to the final VMA. > + * VM_STICKY - When merging VMAs, VMA flags must match, unless they are > + * 'sticky'. If any sticky flags exist in either VMA, we simply > + * set all of them on the merged VMA. > */ > #define VM_IGNORE_MERGE (VM_SOFTDIRTY | VM_STICKY) > > --- a/tools/testing/vma/vma_internal.h~mm-implement-sticky-vma-flags-fix-2 > +++ a/tools/testing/vma/vma_internal.h > @@ -139,10 +139,9 @@ extern unsigned long dac_mmap_min_addr; > * pressure on the memory system forcing the kernel to generate > * new VMAs when old one could be extended instead. > * > - * VM_STICKY - If one VMA has flags which most be 'sticky', that is ones > - * which should propagate to all VMAs, but the other does not, > - * the merge should still proceed with the merge logic applying > - * sticky flags to the final VMA. > + * VM_STICKY - When merging VMAs, VMA flags must match, unless they are > + * 'sticky'. If any sticky flags exist in either VMA, we simply > + * set all of them on the merged VMA. > */ > #define VM_IGNORE_MERGE (VM_SOFTDIRTY | VM_STICKY) > > _ > Thanks, much appreciated! Despite your having very kindly done this, I apologise as I realise now after all I have to respin... doh! There was yet another typo as pointed out by Jane (and previously off-list, Liam) plus Pedro (off-list) mentioned a silly mistake in my code fixup, and at this point I think it'll keep us all a lot saner to just respin :>) Cheers, Lorenzo
Hi Andrew, We need to also update those callers that unconditionally set VMA flags via vm_flags_reset() and vm_flags_reset_once() to account for sticky flags. Please apply the attached fix-patch to fix this :) Thanks, Lorenzo ----8<---- From 15c8661499f118ac8d422a8344c8017f24590ad0 Mon Sep 17 00:00:00 2001 From: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Date: Mon, 17 Nov 2025 13:24:37 +0000 Subject: [PATCH] fixup Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> --- mm/madvise.c | 3 +++ mm/mlock.c | 3 +++ mm/mprotect.c | 3 +++ 3 files changed, 9 insertions(+) diff --git a/mm/madvise.c b/mm/madvise.c index fb1c86e630b6..e651675eaaaf 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -172,6 +172,9 @@ static int madvise_update_vma(vm_flags_t new_flags, if (IS_ERR(vma)) return PTR_ERR(vma); + /* Account for sticky flags. */ + new_flags |= vma->vm_flags; + madv_behavior->vma = vma; /* vm_flags is protected by the mmap_lock held in write mode. */ diff --git a/mm/mlock.c b/mm/mlock.c index bb0776f5ef7c..7455a1f6a98c 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -484,6 +484,9 @@ static int mlock_fixup(struct vma_iterator *vmi, struct vm_area_struct *vma, goto out; } + /* Account for sticky flags. */ + newflags |= vma->vm_flags; + /* * Keep track of amount of locked VM. */ diff --git a/mm/mprotect.c b/mm/mprotect.c index ab4e06cd9a69..145417471201 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -762,6 +762,9 @@ mprotect_fixup(struct vma_iterator *vmi, struct mmu_gather *tlb, goto fail; } + /* Account for sticky flags. */ + newflags |= vma->vm_flags; + *pprev = vma; /* -- 2.51.0
© 2016 - 2025 Red Hat, Inc.