PCI devices device-tree nodes can be already created. This was
introduced by commit 407d1a51921e ("PCI: Create device tree node for
bridge").
In order to have device-tree nodes related to PCI devices attached on
their PCI root bus (the PCI bus handled by the PCI host bridge), a PCI
root bus device-tree node is needed. This root bus node will be used as
the parent node of the first level devices scanned on the bus. On
device-tree based systems, this PCI root bus device tree node is set to
the node of the related PCI host bridge. The PCI host bridge node is
available in the device-tree used to describe the hardware passed at
boot.
On non device-tree based system (such as ACPI), a device-tree node for
the PCI host bridge or for the root bus does not exist. Indeed, the PCI
host bridge is not described in a device-tree used at boot simply
because no device-tree are passed at boot.
The device-tree PCI host bridge node creation needs to be done at
runtime. This is done in the same way as for the creation of the PCI
device nodes. I.e. node and properties are created based on computed
information done by the PCI core. Also, as is done on device-tree based
systems, this PCI host bridge node is used for the PCI root bus.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
---
drivers/pci/of.c | 94 ++++++++++++++++++++++++++++++++++-
drivers/pci/of_property.c | 102 ++++++++++++++++++++++++++++++++++++++
drivers/pci/pci.h | 6 +++
drivers/pci/probe.c | 2 +
drivers/pci/remove.c | 2 +
5 files changed, 205 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/of.c b/drivers/pci/of.c
index 3cca33105b85..108a67be12ea 100644
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -726,7 +726,99 @@ void of_pci_make_dev_node(struct pci_dev *pdev)
out_free_name:
kfree(name);
}
-#endif
+
+void of_pci_remove_host_bridge_node(struct pci_host_bridge *bridge)
+{
+ struct device_node *np;
+
+ np = pci_bus_to_OF_node(bridge->bus);
+ if (!np || !of_node_check_flag(np, OF_DYNAMIC))
+ return;
+
+ device_remove_of_node(&bridge->bus->dev);
+ device_remove_of_node(&bridge->dev);
+ of_changeset_revert(np->data);
+ of_changeset_destroy(np->data);
+ of_node_put(np);
+}
+
+void of_pci_make_host_bridge_node(struct pci_host_bridge *bridge)
+{
+ struct device_node *np = NULL;
+ struct of_changeset *cset;
+ const char *name;
+ int ret;
+
+ /*
+ * If there is already a device-tree node linked to the PCI bus handled
+ * by this bridge (i.e. the PCI root bus), nothing to do.
+ */
+ if (pci_bus_to_OF_node(bridge->bus))
+ return;
+
+ /* The root bus has no node. Check that the host bridge has no node too */
+ if (bridge->dev.of_node) {
+ dev_err(&bridge->dev, "PCI host bridge of_node already set");
+ return;
+ }
+
+ /* Check if there is a DT root node to attach the created node */
+ if (!of_root) {
+ pr_err("of_root node is NULL, cannot create PCI host bridge node\n");
+ return;
+ }
+
+ name = kasprintf(GFP_KERNEL, "pci@%x,%x", pci_domain_nr(bridge->bus),
+ bridge->bus->number);
+ if (!name)
+ return;
+
+ cset = kmalloc(sizeof(*cset), GFP_KERNEL);
+ if (!cset)
+ goto out_free_name;
+ of_changeset_init(cset);
+
+ np = of_changeset_create_node(cset, of_root, name);
+ if (!np)
+ goto out_destroy_cset;
+
+ ret = of_pci_add_host_bridge_properties(bridge, cset, np);
+ if (ret)
+ goto out_free_node;
+
+ /*
+ * This of_node will be added to an existing device. The of_node parent
+ * is the root OF node and so this node will be handled by the platform
+ * bus. Avoid any new device creation.
+ */
+ of_node_set_flag(np, OF_POPULATED);
+ np->fwnode.dev = &bridge->dev;
+ fwnode_dev_initialized(&np->fwnode, true);
+
+ ret = of_changeset_apply(cset);
+ if (ret)
+ goto out_free_node;
+
+ np->data = cset;
+
+ /* Add the of_node to host bridge and the root bus */
+ device_add_of_node(&bridge->dev, np);
+ device_add_of_node(&bridge->bus->dev, np);
+
+ kfree(name);
+
+ return;
+
+out_free_node:
+ of_node_put(np);
+out_destroy_cset:
+ of_changeset_destroy(cset);
+ kfree(cset);
+out_free_name:
+ kfree(name);
+}
+
+#endif /* CONFIG_PCI_DYNAMIC_OF_NODES */
/**
* of_pci_supply_present() - Check if the power supply is present for the PCI
diff --git a/drivers/pci/of_property.c b/drivers/pci/of_property.c
index 400c4c2e434d..b03baff651ee 100644
--- a/drivers/pci/of_property.c
+++ b/drivers/pci/of_property.c
@@ -394,3 +394,105 @@ int of_pci_add_properties(struct pci_dev *pdev, struct of_changeset *ocs,
return 0;
}
+
+static bool of_pci_is_range_resource(const struct resource *res, u32 *flags)
+{
+ if (!(resource_type(res) & IORESOURCE_MEM) &&
+ !(resource_type(res) & IORESOURCE_MEM_64))
+ return false;
+
+ if (of_pci_get_addr_flags(res, flags))
+ return false;
+
+ return true;
+}
+
+static int of_pci_host_bridge_prop_ranges(struct pci_host_bridge *bridge,
+ struct of_changeset *ocs,
+ struct device_node *np)
+{
+ struct resource_entry *window;
+ unsigned int ranges_sz = 0;
+ unsigned int n_range = 0;
+ struct resource *res;
+ int n_addr_cells;
+ u32 *ranges;
+ u64 val64;
+ u32 flags;
+ int ret;
+
+ n_addr_cells = of_n_addr_cells(np);
+ if (n_addr_cells <= 0 || n_addr_cells > 2)
+ return -EINVAL;
+
+ resource_list_for_each_entry(window, &bridge->windows) {
+ res = window->res;
+ if (!of_pci_is_range_resource(res, &flags))
+ continue;
+ n_range++;
+ }
+
+ if (!n_range)
+ return 0;
+
+ ranges = kcalloc(n_range,
+ (OF_PCI_ADDRESS_CELLS + OF_PCI_SIZE_CELLS +
+ n_addr_cells) * sizeof(*ranges),
+ GFP_KERNEL);
+ if (!ranges)
+ return -ENOMEM;
+
+ resource_list_for_each_entry(window, &bridge->windows) {
+ res = window->res;
+ if (!of_pci_is_range_resource(res, &flags))
+ continue;
+
+ /* PCI bus address */
+ val64 = res->start;
+ of_pci_set_address(NULL, &ranges[ranges_sz], val64 - window->offset,
+ 0, flags, false);
+ ranges_sz += OF_PCI_ADDRESS_CELLS;
+
+ /* Host bus address */
+ if (n_addr_cells == 2)
+ ranges[ranges_sz++] = upper_32_bits(val64);
+ ranges[ranges_sz++] = lower_32_bits(val64);
+
+ /* Size */
+ val64 = resource_size(res);
+ ranges[ranges_sz] = upper_32_bits(val64);
+ ranges[ranges_sz + 1] = lower_32_bits(val64);
+ ranges_sz += OF_PCI_SIZE_CELLS;
+ }
+
+ ret = of_changeset_add_prop_u32_array(ocs, np, "ranges", ranges, ranges_sz);
+ kfree(ranges);
+ return ret;
+}
+
+int of_pci_add_host_bridge_properties(struct pci_host_bridge *bridge,
+ struct of_changeset *ocs,
+ struct device_node *np)
+{
+ int ret;
+
+ ret = of_changeset_add_prop_string(ocs, np, "device_type", "pci");
+ if (ret)
+ return ret;
+
+ ret = of_changeset_add_prop_u32(ocs, np, "#address-cells",
+ OF_PCI_ADDRESS_CELLS);
+ if (ret)
+ return ret;
+
+ ret = of_changeset_add_prop_u32(ocs, np, "#size-cells",
+ OF_PCI_SIZE_CELLS);
+ if (ret)
+ return ret;
+
+ ret = of_pci_host_bridge_prop_ranges(bridge, ocs, np);
+ if (ret)
+ return ret;
+
+ return 0;
+}
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 2e40fc63ba31..0cdb2b3daea8 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -871,9 +871,15 @@ void of_pci_make_dev_node(struct pci_dev *pdev);
void of_pci_remove_node(struct pci_dev *pdev);
int of_pci_add_properties(struct pci_dev *pdev, struct of_changeset *ocs,
struct device_node *np);
+void of_pci_make_host_bridge_node(struct pci_host_bridge *bridge);
+void of_pci_remove_host_bridge_node(struct pci_host_bridge *bridge);
+int of_pci_add_host_bridge_properties(struct pci_host_bridge *bridge, struct of_changeset *ocs,
+ struct device_node *np);
#else
static inline void of_pci_make_dev_node(struct pci_dev *pdev) { }
static inline void of_pci_remove_node(struct pci_dev *pdev) { }
+static inline void of_pci_make_host_bridge_node(struct pci_host_bridge *bridge) { }
+static inline void of_pci_remove_host_bridge_node(struct pci_host_bridge *bridge) { }
#endif
#ifdef CONFIG_PCIEAER
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 2e81ab0f5a25..629287f6b3d9 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1051,6 +1051,8 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
dev_info(&bus->dev, "root bus resource %pR%s\n", res, addr);
}
+ of_pci_make_host_bridge_node(bridge);
+
down_write(&pci_bus_sem);
list_add_tail(&bus->node, &pci_root_buses);
up_write(&pci_bus_sem);
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index efc37fcb73e2..9f7df2b20183 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -163,6 +163,8 @@ void pci_stop_root_bus(struct pci_bus *bus)
&bus->devices, bus_list)
pci_stop_bus_device(child);
+ of_pci_remove_host_bridge_node(host_bridge);
+
/* stop the host bridge */
device_release_driver(&host_bridge->dev);
}
--
2.47.0
Hello,
kernel test robot noticed "WARNING:at_drivers/of/base.c:#of_n_addr_cells" on:
commit: 7e0c4ed7342d44f246bc8d905421f8010de74662 ("[PATCH v5 5/5] PCI: of: Create device-tree PCI host bridge node")
url: https://github.com/intel-lab-lkp/linux/commits/Herve-Codina/driver-core-Introduce-device_-add-remove-_of_node/20241209-211305
base: https://git.kernel.org/cgit/linux/kernel/git/pci/pci.git next
patch link: https://lore.kernel.org/all/20241209130339.81354-6-herve.codina@bootlin.com/
patch subject: [PATCH v5 5/5] PCI: of: Create device-tree PCI host bridge node
in testcase: boot
config: i386-randconfig-001-20241220
compiler: clang-19
test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+-------------------------------------------------------------------------+------------+------------+
| | 320b0bf1d5 | 7e0c4ed734 |
+-------------------------------------------------------------------------+------------+------------+
| WARNING:at_drivers/of/base.c:#of_n_addr_cells | 0 | 18 |
| EIP:of_n_addr_cells | 0 | 18 |
+-------------------------------------------------------------------------+------------+------------+
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202412241455.22d84a7f-lkp@intel.com
[ 1.417876][ T1] ------------[ cut here ]------------
[ 1.418708][ T1] Missing '#address-cells' in
[ 1.419500][ T1] WARNING: CPU: 1 PID: 1 at drivers/of/base.c:107 of_n_addr_cells (drivers/of/base.c:106 drivers/of/base.c:117)
[ 1.420197][ T1] Modules linked in:
[ 1.420818][ T1] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.13.0-rc1-00012-g7e0c4ed7342d #1 4d930b120051bd0d99d76027ef034fe5e41e6f6f
[ 1.422678][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 1.424206][ T1] EIP: of_n_addr_cells (drivers/of/base.c:106 drivers/of/base.c:117)
[ 1.424986][ T1] Code: c0 79 2b 80 3d 6f 0c 00 44 00 74 09 8b 7f 34 85 ff 75 d7 eb 1c c6 05 6f 0c 00 44 01 57 68 d7 08 1e 43 e8 53 12 a3 fe 83 c4 08 <0f> 0b eb de 8b 75 f0 89 f0 83 c4 04 5e 5f 5b 5d 31 c9 31 d2 c3 cc
All code
========
0: c0 79 2b 80 sarb $0x80,0x2b(%rcx)
4: 3d 6f 0c 00 44 cmp $0x44000c6f,%eax
9: 00 74 09 8b add %dh,-0x75(%rcx,%rcx,1)
d: 7f 34 jg 0x43
f: 85 ff test %edi,%edi
11: 75 d7 jne 0xffffffffffffffea
13: eb 1c jmp 0x31
15: c6 05 6f 0c 00 44 01 movb $0x1,0x44000c6f(%rip) # 0x44000c8b
1c: 57 push %rdi
1d: 68 d7 08 1e 43 push $0x431e08d7
22: e8 53 12 a3 fe call 0xfffffffffea3127a
27: 83 c4 08 add $0x8,%esp
2a:* 0f 0b ud2 <-- trapping instruction
2c: eb de jmp 0xc
2e: 8b 75 f0 mov -0x10(%rbp),%esi
31: 89 f0 mov %esi,%eax
33: 83 c4 04 add $0x4,%esp
36: 5e pop %rsi
37: 5f pop %rdi
38: 5b pop %rbx
39: 5d pop %rbp
3a: 31 c9 xor %ecx,%ecx
3c: 31 d2 xor %edx,%edx
3e: c3 ret
3f: cc int3
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: eb de jmp 0xffffffffffffffe2
4: 8b 75 f0 mov -0x10(%rbp),%esi
7: 89 f0 mov %esi,%eax
9: 83 c4 04 add $0x4,%esp
c: 5e pop %rsi
d: 5f pop %rdi
e: 5b pop %rbx
f: 5d pop %rbp
10: 31 c9 xor %ecx,%ecx
12: 31 d2 xor %edx,%edx
14: c3 ret
15: cc int3
[ 1.427777][ T1] EAX: 00000000 EBX: 44d5992c ECX: 00000000 EDX: 00000000
[ 1.428821][ T1] ESI: 00000001 EDI: ee7fdeb8 EBP: 44d5993c ESP: 44d5992c
[ 1.429891][ T1] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010202
[ 1.430985][ T1] CR0: 80050033 CR2: 00000000 CR3: 042ec000 CR4: 000406d0
[ 1.432049][ T1] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 1.433214][ T1] DR6: fffe0ff0 DR7: 00000400
[ 1.433946][ T1] Call Trace:
[ 1.434502][ T1] ? show_regs (arch/x86/kernel/dumpstack.c:478)
[ 1.435199][ T1] ? of_n_addr_cells (drivers/of/base.c:106 drivers/of/base.c:117)
[ 1.435949][ T1] ? __warn (kernel/panic.c:242)
[ 1.436615][ T1] ? of_n_addr_cells (drivers/of/base.c:106 drivers/of/base.c:117)
[ 1.437327][ T1] ? of_n_addr_cells (drivers/of/base.c:106 drivers/of/base.c:117)
[ 1.437993][ T1] ? report_bug (lib/bug.c:199)
[ 1.438659][ T1] ? exc_overflow (arch/x86/kernel/traps.c:301)
[ 1.439808][ T1] ? handle_bug (arch/x86/kernel/traps.c:?)
[ 1.440043][ T1] ? exc_invalid_op (arch/x86/kernel/traps.c:309)
[ 1.440791][ T1] ? handle_exception (arch/x86/entry/entry_32.S:1048)
[ 1.441635][ T1] ? exc_overflow (arch/x86/kernel/traps.c:301)
[ 1.442355][ T1] ? of_n_addr_cells (drivers/of/base.c:106 drivers/of/base.c:117)
[ 1.443145][ T1] ? exc_overflow (arch/x86/kernel/traps.c:301)
[ 1.443829][ T1] ? of_n_addr_cells (drivers/of/base.c:106 drivers/of/base.c:117)
[ 1.444564][ T1] ? of_pci_add_host_bridge_properties (drivers/pci/of_property.c:? drivers/pci/of_property.c:493)
[ 1.445519][ T1] ? of_changeset_create_node (drivers/of/dynamic.c:917 include/linux/of.h:1614 drivers/of/dynamic.c:512)
[ 1.446365][ T1] ? of_pci_make_host_bridge_node (drivers/pci/of.c:786)
[ 1.447291][ T1] ? pci_register_host_bridge (drivers/pci/probe.c:1056)
[ 1.448154][ T1] ? __raw_spin_lock_init (include/linux/lockdep.h:135 include/linux/lockdep.h:142 kernel/locking/spinlock_debug.c:25)
[ 1.448953][ T1] ? __init_waitqueue_head (kernel/sched/wait.c:11)
[ 1.449806][ T1] ? pci_create_root_bus (drivers/pci/probe.c:3093)
[ 1.450039][ T1] ? acpi_pci_root_create (drivers/acpi/pci_root.c:1025)
[ 1.450869][ T1] ? pci_acpi_scan_root (arch/x86/pci/acpi.c:574)
[ 1.451682][ T1] ? acpi_pci_root_add (drivers/acpi/pci_root.c:728)
[ 1.452495][ T1] ? acpi_bus_get_status (drivers/acpi/bus.c:82)
[ 1.453269][ T1] ? acpi_bus_attach (drivers/acpi/scan.c:2261 drivers/acpi/scan.c:2309)
[ 1.454031][ T1] ? klist_next (lib/klist.c:384)
[ 1.454743][ T1] ? acpi_dev_for_one_check (drivers/acpi/bus.c:1145)
[ 1.455569][ T1] ? acpi_dev_for_each_child (drivers/acpi/bus.c:1139)
[ 1.456416][ T1] ? device_for_each_child (drivers/base/core.c:3993)
[ 1.457227][ T1] ? acpi_dev_for_each_child (drivers/acpi/bus.c:1157)
[ 1.458056][ T1] ? acpi_scan_clear_dep_fn (drivers/acpi/scan.c:2274)
[ 1.459806][ T1] ? acpi_bus_attach (drivers/acpi/scan.c:2331)
[ 1.459806][ T1] ? klist_next (lib/klist.c:384)
[ 1.460029][ T1] ? acpi_dev_for_one_check (drivers/acpi/bus.c:1145)
[ 1.460869][ T1] ? acpi_dev_for_each_child (drivers/acpi/bus.c:1139)
[ 1.461729][ T1] ? device_for_each_child (drivers/base/core.c:3993)
[ 1.462550][ T1] ? acpi_dev_for_each_child (drivers/acpi/bus.c:1157)
[ 1.463350][ T1] ? acpi_scan_clear_dep_fn (drivers/acpi/scan.c:2274)
[ 1.464160][ T1] ? acpi_bus_attach (drivers/acpi/scan.c:2331)
[ 1.464912][ T1] ? acpi_bus_scan (drivers/acpi/scan.c:2541)
[ 1.465639][ T1] ? acpi_scan_init (drivers/acpi/scan.c:2747)
[ 1.466388][ T1] ? __pci_mmcfg_init (include/linux/list.h:373 arch/x86/pci/mmconfig-shared.c:691)
[ 1.467151][ T1] ? acpi_init (drivers/acpi/bus.c:1468)
[ 1.467841][ T1] ? __initstub__kmod_acpi__390_1478_acpi_init4 (drivers/acpi/bus.c:1478)
[ 1.469805][ T1] ? do_one_initcall (init/main.c:1266)
[ 1.469805][ T1] ? __lock_acquire (kernel/locking/lockdep.c:4670)
[ 1.470057][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91)
[ 1.470854][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:268)
[ 1.471606][ T1] ? local_clock_noinstr (kernel/sched/clock.c:269 kernel/sched/clock.c:306)
[ 1.472397][ T1] ? local_clock (arch/x86/include/asm/preempt.h:84 kernel/sched/clock.c:316)
[ 1.473076][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91)
[ 1.473884][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:268)
[ 1.474646][ T1] ? local_clock_noinstr (kernel/sched/clock.c:269 kernel/sched/clock.c:306)
[ 1.475469][ T1] ? local_clock (arch/x86/include/asm/preempt.h:84 kernel/sched/clock.c:316)
[ 1.476194][ T1] ? ktime_get (include/linux/seqlock.h:226)
[ 1.476927][ T1] ? ktime_get (kernel/time/timekeeping.c:226 kernel/time/timekeeping.c:335 kernel/time/timekeeping.c:812)
[ 1.477633][ T1] ? sched_balance_trigger (kernel/sched/fair.c:12886)
[ 1.479808][ T1] ? clockevents_program_event (kernel/time/clockevents.c:336)
[ 1.479808][ T1] ? profile_tick (include/linux/profile.h:50)
[ 1.480043][ T1] ? tick_periodic (kernel/time/tick-common.c:103)
[ 1.480781][ T1] ? __lock_acquire (kernel/locking/lockdep.c:4670)
[ 1.481550][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:268)
[ 1.482352][ T1] ? tick_handle_periodic (kernel/time/tick-common.c:132)
[ 1.483169][ T1] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:49)
[ 1.483939][ T1] ? irqentry_exit (kernel/entry/common.c:?)
[ 1.484656][ T1] ? sysvec_call_function_single (arch/x86/kernel/apic/apic.c:1049)
[ 1.485505][ T1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049)
[ 1.486375][ T1] ? handle_exception (arch/x86/entry/entry_32.S:1048)
[ 1.487143][ T1] ? xa_extract (lib/xarray.c:2157)
[ 1.487863][ T1] ? next_arg (lib/cmdline.c:273)
[ 1.489879][ T1] ? parse_args (kernel/params.c:153)
[ 1.489879][ T1] ? acpi_sleep_init (drivers/acpi/bus.c:1478)
[ 1.489879][ T1] ? do_initcall_level (init/main.c:1327)
[ 1.490609][ T1] ? rest_init (init/main.c:1458)
[ 1.491323][ T1] ? do_initcalls (init/main.c:1341)
[ 1.492037][ T1] ? rest_init (init/main.c:1458)
[ 1.492745][ T1] ? do_basic_setup (init/main.c:1364)
[ 1.493510][ T1] ? kernel_init_freeable (init/main.c:1579)
[ 1.494299][ T1] ? kernel_init (init/main.c:1468)
[ 1.494991][ T1] ? ret_from_fork (arch/x86/kernel/process.c:153)
[ 1.495713][ T1] ? ret_from_fork_asm (arch/x86/entry/entry_32.S:737)
[ 1.496483][ T1] ? entry_INT80_32 (arch/x86/entry/entry_32.S:945)
[ 1.497262][ T1] irq event stamp: 46823
[ 1.499897][ T1] hardirqs last enabled at (46835): __console_unlock (arch/x86/include/asm/irqflags.h:26 arch/x86/include/asm/irqflags.h:87 arch/x86/include/asm/irqflags.h:147 kernel/printk/printk.c:344 kernel/printk/printk.c:2869)
[ 1.499897][ T1] hardirqs last disabled at (46844): __console_unlock (kernel/printk/printk.c:342)
[ 1.500213][ T1] softirqs last enabled at (46858): __do_softirq (kernel/softirq.c:589)
[ 1.501440][ T1] softirqs last disabled at (46853): __do_softirq (kernel/softirq.c:589)
[ 1.502694][ T1] ---[ end trace 0000000000000000 ]---
[ 1.503814][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 conventional PCI endpoint
[ 1.507268][ T1] pci 0000:00:01.0: [8086:7000] type 00 class 0x060100 conventional PCI endpoint
[ 1.510876][ T1] pci 0000:00:01.1: [8086:7010] type 00 class 0x010180 conventional PCI endpoint
[ 1.514831][ T1] pci 0000:00:01.1: BAR 4 [io 0xc140-0xc14f]
[ 1.516807][ T1] pci 0000:00:01.1: BAR 0 [io 0x01f0-0x01f7]: legacy IDE quirk
[ 1.519807][ T1] pci 0000:00:01.1: BAR 1 [io 0x03f6]: legacy IDE quirk
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20241224/202412241455.22d84a7f-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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