[Qemu-devel] [PATCH v6 0/3] High downtime with 95+ throttle pct

Yury Kotov posted 3 patches 4 years, 7 months ago
Test FreeBSD passed
Test docker-mingw@fedora failed
Test asan failed
Test docker-clang@ubuntu passed
Test checkpatch passed
Test docker-quick@centos7 passed
Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/qemu tags/patchew/20190909104948.30253-1-yury-kotov@yandex-team.ru
Maintainers: "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Thomas Huth <thuth@redhat.com>, Stefan Weil <sw@weilnetz.de>, Juan Quintela <quintela@redhat.com>, Laurent Vivier <lvivier@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Richard Henderson <rth@twiddle.net>
There is a newer version of this series
cpus.c                   |  25 +++++---
include/qemu/thread.h    |  19 +++++++
tests/migration-test.c   | 120 +++++++++++++++++++++++++++++++++++----
util/qemu-thread-posix.c |  41 +++++++++----
util/qemu-thread-win32.c |  17 ++++++
util/qsp.c               |  20 +++++++
6 files changed, 211 insertions(+), 31 deletions(-)
[Qemu-devel] [PATCH v6 0/3] High downtime with 95+ throttle pct
Posted by Yury Kotov 4 years, 7 months ago
Hi,

V6:
* Fix "Add qemu_cond_timedwait" patch:
  - Changed return type for qemu_cond_timedwait (void -> bool)
  - Added details in commit message

V5:
* Updated sleep loop in throttle_thread at the suggestion of Paolo Bonzini
* Fixed hanging of test

V4:
* The test was simplified to prevent false fails.

V3:
* Rebase fixes (migrate_set_parameter -> migrate_set_parameter_int)

V2:
* Added a test
* Fixed qemu_cond_timedwait for qsp

I wrote a test for migration auto converge and found out a strange thing:
1. Enable auto converge
2. Set max-bandwidth 1Gb/s
3. Set downtime-limit 1ms
4. Run standard test (just writes a byte per page)
5. Wait for converge
6. It's converged with 99% throttle percentage
7. The result downtime was about 300-600ms   <<<<

It's much higher than expected 1ms. I figured out that cpu_throttle_thread()
function sleeps for 100ms+ for high throttle percentage (>=95%) in VCPU thread.
And it sleeps even after a cpu kick.

Fixed it by using timedwait for ms part of sleep.
E.g timedwait(halt_cond, 1ms) + usleep(500).

Regards,
Yury

Yury Kotov (3):
  qemu-thread: Add qemu_cond_timedwait
  cpus: Fix throttling during vm_stop
  tests/migration: Add a test for auto converge

 cpus.c                   |  25 +++++---
 include/qemu/thread.h    |  19 +++++++
 tests/migration-test.c   | 120 +++++++++++++++++++++++++++++++++++----
 util/qemu-thread-posix.c |  41 +++++++++----
 util/qemu-thread-win32.c |  17 ++++++
 util/qsp.c               |  20 +++++++
 6 files changed, 211 insertions(+), 31 deletions(-)

-- 
2.23.0


Re: [Qemu-devel] [PATCH v6 0/3] High downtime with 95+ throttle pct
Posted by no-reply@patchew.org 4 years, 7 months ago
Patchew URL: https://patchew.org/QEMU/20190909104948.30253-1-yury-kotov@yandex-team.ru/



Hi,

This series failed the asan build test. Please find the testing commands and
their output below. If you have Docker installed, you can probably reproduce it
locally.

=== TEST SCRIPT BEGIN ===
#!/bin/bash
make docker-image-fedora V=1 NETWORK=1
time make docker-test-debug@fedora TARGET_LIST=x86_64-softmmu J=14 NETWORK=1
=== TEST SCRIPT END ===

PASS 11 test-char /char/hotswap
=================================================================
PASS 12 test-char /char/websocket
==10690==ERROR: AddressSanitizer: stack-use-after-scope on address 0x7fff16df5df0 at pc 0x55ed657bde76 bp 0x7fff16df5430 sp 0x7fff16df5428
READ of size 8 at 0x7fff16df5df0 thread T0
    #0 0x55ed657bde75 in char_socket_server_test /tmp/qemu-test/src/tests/test-char.c:762:50
    #1 0x7fd94cf4bf9d  (/lib64/libglib-2.0.so.0+0x77f9d)
---
  Right alloca redzone:    cb
  Shadow gap:              cc
==10690==ABORTING
ERROR - too few tests run (expected 34, got 12)
make: *** [/tmp/qemu-test/src/tests/Makefile.include:905: check-unit] Error 1
make: *** Waiting for unfinished jobs....
PASS 1 endianness-test /x86_64/endianness/pc
---
PASS 1 fdc-test /x86_64/fdc/cmos
PASS 2 fdc-test /x86_64/fdc/no_media_on_start
PASS 3 fdc-test /x86_64/fdc/read_without_media
==10717==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 fdc-test /x86_64/fdc/media_change
PASS 5 fdc-test /x86_64/fdc/sense_interrupt
PASS 6 fdc-test /x86_64/fdc/relative_seek
---
PASS 12 fdc-test /x86_64/fdc/read_no_dma_19
PASS 13 fdc-test /x86_64/fdc/fuzz-registers
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/ide-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="ide-test" 
==10729==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 ide-test /x86_64/ide/identify
==10735==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 ide-test /x86_64/ide/flush
==10741==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 ide-test /x86_64/ide/bmdma/simple_rw
==10747==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 ide-test /x86_64/ide/bmdma/trim
==10753==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 ide-test /x86_64/ide/bmdma/short_prdt
==10759==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 6 ide-test /x86_64/ide/bmdma/one_sector_short_prdt
==10765==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 7 ide-test /x86_64/ide/bmdma/long_prdt
==10771==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10771==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7fffcc406000; bottom 0x7f95a3ffe000; size: 0x006a28408000 (455941849088)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 8 ide-test /x86_64/ide/bmdma/no_busmaster
PASS 9 ide-test /x86_64/ide/flush/nodev
==10783==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 10 ide-test /x86_64/ide/flush/empty_drive
==10788==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 11 ide-test /x86_64/ide/flush/retry_pci
==10794==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 12 ide-test /x86_64/ide/flush/retry_isa
==10800==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 13 ide-test /x86_64/ide/cdrom/pio
==10806==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 14 ide-test /x86_64/ide/cdrom/pio_large
==10812==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 15 ide-test /x86_64/ide/cdrom/dma
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/ahci-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="ahci-test" 
==10826==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 ahci-test /x86_64/ahci/sanity
==10832==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 ahci-test /x86_64/ahci/pci_spec
==10838==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 ahci-test /x86_64/ahci/pci_enable
==10844==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 ahci-test /x86_64/ahci/hba_spec
==10850==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 ahci-test /x86_64/ahci/hba_enable
==10856==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 6 ahci-test /x86_64/ahci/identify
==10862==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 7 ahci-test /x86_64/ahci/max
==10868==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 8 ahci-test /x86_64/ahci/reset
==10874==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10874==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffcbd9dd000; bottom 0x7fbf153fe000; size: 0x003da85df000 (264817733632)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 9 ahci-test /x86_64/ahci/io/pio/lba28/simple/zero
==10880==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10880==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7fffcb4af000; bottom 0x7f3ba37fe000; size: 0x00c427cb1000 (842481209344)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 10 ahci-test /x86_64/ahci/io/pio/lba28/simple/low
==10886==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10886==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd0ce9c000; bottom 0x7fd8e47fe000; size: 0x00242869e000 (155296849920)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 11 ahci-test /x86_64/ahci/io/pio/lba28/simple/high
==10892==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10892==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffe1c28a000; bottom 0x7f8129dfe000; size: 0x007cf248c000 (536640798720)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 12 ahci-test /x86_64/ahci/io/pio/lba28/double/zero
==10898==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10898==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7fff28f0f000; bottom 0x7fb33e7fe000; size: 0x004bea711000 (326055825408)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 13 ahci-test /x86_64/ahci/io/pio/lba28/double/low
==10904==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10904==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffcb2fff000; bottom 0x7fea363fe000; size: 0x00127cc01000 (79402373120)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 14 ahci-test /x86_64/ahci/io/pio/lba28/double/high
==10910==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10910==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffda85a8000; bottom 0x7fae243fe000; size: 0x004f841aa000 (341518753792)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 15 ahci-test /x86_64/ahci/io/pio/lba28/long/zero
==10916==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10916==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffc9ad23000; bottom 0x7f6e4b9fe000; size: 0x008e4f325000 (611214053376)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 16 ahci-test /x86_64/ahci/io/pio/lba28/long/low
==10922==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10922==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffcb98ef000; bottom 0x7efed6ffe000; size: 0x00fde28f1000 (1090427752448)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 17 ahci-test /x86_64/ahci/io/pio/lba28/long/high
==10928==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 18 ahci-test /x86_64/ahci/io/pio/lba28/short/zero
==10934==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 19 ahci-test /x86_64/ahci/io/pio/lba28/short/low
==10940==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 20 ahci-test /x86_64/ahci/io/pio/lba28/short/high
==10946==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10946==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffe6b490000; bottom 0x7f4c881fe000; size: 0x00b1e3292000 (764020334592)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 21 ahci-test /x86_64/ahci/io/pio/lba48/simple/zero
==10952==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10952==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffdc8135000; bottom 0x7fe59d1fe000; size: 0x00182af37000 (103799812096)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 22 ahci-test /x86_64/ahci/io/pio/lba48/simple/low
==10958==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10958==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffe40380000; bottom 0x7f66423fe000; size: 0x0097fdf82000 (652800958464)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 23 ahci-test /x86_64/ahci/io/pio/lba48/simple/high
==10964==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10964==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd4b180000; bottom 0x7eff041fe000; size: 0x00fe46f82000 (1092112359424)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 24 ahci-test /x86_64/ahci/io/pio/lba48/double/zero
==10970==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10970==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffff1ff9000; bottom 0x7f04ea7fe000; size: 0x00fb077fb000 (1078162599936)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 25 ahci-test /x86_64/ahci/io/pio/lba48/double/low
==10976==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10976==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffe5284d000; bottom 0x7f2c787fe000; size: 0x00d1da04f000 (901305921536)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 26 ahci-test /x86_64/ahci/io/pio/lba48/double/high
==10982==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10982==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd011ed000; bottom 0x7f9eb83fe000; size: 0x005e48def000 (404949495808)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 27 ahci-test /x86_64/ahci/io/pio/lba48/long/zero
==10988==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10988==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7fff5dc85000; bottom 0x7ffb8ebfe000; size: 0x0003cf087000 (16358338560)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 28 ahci-test /x86_64/ahci/io/pio/lba48/long/low
==10994==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==10994==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffc8467a000; bottom 0x7f59069fe000; size: 0x00a37dc7c000 (702189912064)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 29 ahci-test /x86_64/ahci/io/pio/lba48/long/high
==11000==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 30 ahci-test /x86_64/ahci/io/pio/lba48/short/zero
==11006==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 31 ahci-test /x86_64/ahci/io/pio/lba48/short/low
==11012==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 32 ahci-test /x86_64/ahci/io/pio/lba48/short/high
==11018==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 33 ahci-test /x86_64/ahci/io/dma/lba28/fragmented
==11024==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 34 ahci-test /x86_64/ahci/io/dma/lba28/retry
==11030==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 35 ahci-test /x86_64/ahci/io/dma/lba28/simple/zero
==11036==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 36 ahci-test /x86_64/ahci/io/dma/lba28/simple/low
==11042==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 37 ahci-test /x86_64/ahci/io/dma/lba28/simple/high
==11048==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 38 ahci-test /x86_64/ahci/io/dma/lba28/double/zero
==11054==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 39 ahci-test /x86_64/ahci/io/dma/lba28/double/low
==11060==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 40 ahci-test /x86_64/ahci/io/dma/lba28/double/high
==11066==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 41 ahci-test /x86_64/ahci/io/dma/lba28/long/zero
==11072==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 42 ahci-test /x86_64/ahci/io/dma/lba28/long/low
==11078==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 43 ahci-test /x86_64/ahci/io/dma/lba28/long/high
==11084==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 44 ahci-test /x86_64/ahci/io/dma/lba28/short/zero
==11090==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 45 ahci-test /x86_64/ahci/io/dma/lba28/short/low
==11096==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 46 ahci-test /x86_64/ahci/io/dma/lba28/short/high
==11102==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 47 ahci-test /x86_64/ahci/io/dma/lba48/simple/zero
==11108==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 48 ahci-test /x86_64/ahci/io/dma/lba48/simple/low
==11114==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 49 ahci-test /x86_64/ahci/io/dma/lba48/simple/high
==11120==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 50 ahci-test /x86_64/ahci/io/dma/lba48/double/zero
==11126==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 51 ahci-test /x86_64/ahci/io/dma/lba48/double/low
==11132==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 52 ahci-test /x86_64/ahci/io/dma/lba48/double/high
==11138==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 53 ahci-test /x86_64/ahci/io/dma/lba48/long/zero
==11144==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 54 ahci-test /x86_64/ahci/io/dma/lba48/long/low
==11150==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 55 ahci-test /x86_64/ahci/io/dma/lba48/long/high
==11156==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 56 ahci-test /x86_64/ahci/io/dma/lba48/short/zero
==11162==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 57 ahci-test /x86_64/ahci/io/dma/lba48/short/low
==11168==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 58 ahci-test /x86_64/ahci/io/dma/lba48/short/high
==11174==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 59 ahci-test /x86_64/ahci/io/ncq/simple
==11180==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 60 ahci-test /x86_64/ahci/io/ncq/retry
==11186==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 61 ahci-test /x86_64/ahci/flush/simple
==11192==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 62 ahci-test /x86_64/ahci/flush/retry
==11198==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==11203==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 63 ahci-test /x86_64/ahci/flush/migrate
==11212==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==11217==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 64 ahci-test /x86_64/ahci/migrate/sanity
==11226==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==11231==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 65 ahci-test /x86_64/ahci/migrate/dma/simple
==11240==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==11247==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 66 ahci-test /x86_64/ahci/migrate/dma/halted
==11256==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==11261==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 67 ahci-test /x86_64/ahci/migrate/ncq/simple
==11270==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==11275==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 68 ahci-test /x86_64/ahci/migrate/ncq/halted
==11284==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 69 ahci-test /x86_64/ahci/cdrom/eject
==11289==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 70 ahci-test /x86_64/ahci/cdrom/dma/single
==11295==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 71 ahci-test /x86_64/ahci/cdrom/dma/multi
==11301==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 72 ahci-test /x86_64/ahci/cdrom/pio/single
==11307==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==11307==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffc6c4fc000; bottom 0x7fc20fbfe000; size: 0x003a5c8fe000 (250661036032)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 73 ahci-test /x86_64/ahci/cdrom/pio/multi
==11313==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 74 ahci-test /x86_64/ahci/cdrom/pio/bcl
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/hd-geo-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="hd-geo-test" 
PASS 1 hd-geo-test /x86_64/hd-geo/ide/none
==11327==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 hd-geo-test /x86_64/hd-geo/ide/drive/cd_0
==11333==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 hd-geo-test /x86_64/hd-geo/ide/drive/mbr/blank
==11339==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 hd-geo-test /x86_64/hd-geo/ide/drive/mbr/lba
==11345==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 hd-geo-test /x86_64/hd-geo/ide/drive/mbr/chs
==11351==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 6 hd-geo-test /x86_64/hd-geo/ide/device/mbr/blank
==11357==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 7 hd-geo-test /x86_64/hd-geo/ide/device/mbr/lba
==11363==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 8 hd-geo-test /x86_64/hd-geo/ide/device/mbr/chs
==11369==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 9 hd-geo-test /x86_64/hd-geo/ide/device/user/chs
==11374==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 10 hd-geo-test /x86_64/hd-geo/ide/device/user/chst
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/boot-order-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="boot-order-test" 
PASS 1 boot-order-test /x86_64/boot-order/pc
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11442==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP'
Using expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11448==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP'
Using expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11454==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.bridge'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11460==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.ipmikcs'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11466==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.cphp'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11473==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.memhp'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11479==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.numamem'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11485==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.dimmpxm'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11494==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.bridge'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11500==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.mmio64'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11506==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.ipmibt'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11512==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.cphp'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11519==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.memhp'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11525==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.numamem'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==11531==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.dimmpxm'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
PASS 1 i440fx-test /x86_64/i440fx/defaults
PASS 2 i440fx-test /x86_64/i440fx/pam
PASS 3 i440fx-test /x86_64/i440fx/firmware/bios
==11615==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 i440fx-test /x86_64/i440fx/firmware/pflash
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/fw_cfg-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="fw_cfg-test" 
PASS 1 fw_cfg-test /x86_64/fw_cfg/signature
---
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/drive_del-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="drive_del-test" 
PASS 1 drive_del-test /x86_64/drive_del/without-dev
PASS 2 drive_del-test /x86_64/drive_del/after_failed_device_add
==11703==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 drive_del-test /x86_64/blockdev/drive_del_device_del
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/wdt_ib700-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="wdt_ib700-test" 
PASS 1 wdt_ib700-test /x86_64/wdt_ib700/pause
---
PASS 1 usb-hcd-uhci-test /x86_64/uhci/pci/init
PASS 2 usb-hcd-uhci-test /x86_64/uhci/pci/port1
PASS 3 usb-hcd-uhci-test /x86_64/uhci/pci/hotplug
==11898==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 usb-hcd-uhci-test /x86_64/uhci/pci/hotplug/usb-storage
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/usb-hcd-xhci-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="usb-hcd-xhci-test" 
PASS 1 usb-hcd-xhci-test /x86_64/xhci/pci/init
PASS 2 usb-hcd-xhci-test /x86_64/xhci/pci/hotplug
==11907==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 usb-hcd-xhci-test /x86_64/xhci/pci/hotplug/usb-uas
PASS 4 usb-hcd-xhci-test /x86_64/xhci/pci/hotplug/usb-ccid
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/cpu-plug-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="cpu-plug-test" 
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12013==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 vmgenid-test /x86_64/vmgenid/vmgenid/set-guid
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12019==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 vmgenid-test /x86_64/vmgenid/vmgenid/set-guid-auto
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12025==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 vmgenid-test /x86_64/vmgenid/vmgenid/query-monitor
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/tpm-crb-swtpm-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="tpm-crb-swtpm-test" 
SKIP 1 tpm-crb-swtpm-test /x86_64/tpm/crb-swtpm/test # SKIP swtpm not in PATH or missing --tpm2 support
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12130==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12135==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 migration-test /x86_64/migration/fd_proto
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12143==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12148==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 migration-test /x86_64/migration/auto_converge
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12157==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12162==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 migration-test /x86_64/migration/postcopy/unix
PASS 6 migration-test /x86_64/migration/postcopy/recovery
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12192==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12197==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 7 migration-test /x86_64/migration/precopy/unix
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12206==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12211==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 8 migration-test /x86_64/migration/precopy/tcp
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12220==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==12225==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 9 migration-test /x86_64/migration/xbzrle/unix

=================================================================
==12111==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 4120 byte(s) in 1 object(s) allocated from:
    #0 0x558c013ed85e in calloc (/tmp/qemu-test/build/tests/migration-test+0x17885e)
---
PASS 6 numa-test /x86_64/numa/pc/dynamic/cpu
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/qmp-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="qmp-test" 
PASS 1 qmp-test /x86_64/qmp/protocol
==12555==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 qmp-test /x86_64/qmp/oob
PASS 3 qmp-test /x86_64/qmp/preconfig
PASS 4 qmp-test /x86_64/qmp/missing-any-arg
---
PASS 6 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/sdhci-pci/sdhci/sdhci-tests/registers
PASS 7 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/tpci200/ipack/ipoctal232/ipoctal232-tests/nop
PASS 8 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/tpci200/pci-device/pci-device-tests/nop
==12964==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 9 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-9p-pci/pci-device/pci-device-tests/nop
PASS 10 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-9p-pci/virtio/virtio-tests/nop
PASS 11 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-9p-pci/virtio-9p/virtio-9p-tests/config
---
PASS 20 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-9p-pci/virtio-9p/virtio-9p-tests/fs/flush/ignored
PASS 21 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-balloon-pci/pci-device/pci-device-tests/nop
PASS 22 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-balloon-pci/virtio/virtio-tests/nop
==12977==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 23 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-blk-pci/virtio-blk/virtio-blk-tests/indirect
==12984==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 24 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-blk-pci/virtio-blk/virtio-blk-tests/config
==12991==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 25 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-blk-pci/virtio-blk/virtio-blk-tests/basic
==12998==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 26 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-blk-pci/virtio-blk/virtio-blk-tests/resize
==13005==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 27 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-blk-pci/virtio-blk-pci-tests/msix
==13012==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 28 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-blk-pci/virtio-blk-pci-tests/idx
==13019==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 29 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-blk-pci/virtio-blk-pci-tests/nxvirtq
==13026==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 30 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-blk-pci/virtio-blk-pci-tests/hotplug
PASS 31 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-net-pci/virtio-net/virtio-net-tests/basic
PASS 32 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-net-pci/virtio-net/virtio-net-tests/rx_stop_cont
---
PASS 40 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-rng-pci/pci-device/pci-device-tests/nop
PASS 41 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-rng-pci/virtio/virtio-tests/nop
PASS 42 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-rng-pci/virtio-rng-pci-tests/hotplug
==13138==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 43 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-scsi-pci/pci-device/pci-device-tests/nop
==13144==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 44 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-scsi-pci/virtio-scsi/virtio-scsi-tests/hotplug
==13150==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 45 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-scsi-pci/virtio-scsi/virtio-scsi-tests/unaligned-write-same
==13156==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 46 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-scsi-pci/virtio-scsi-pci-tests/iothread-attach-node
PASS 47 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-serial-pci/pci-device/pci-device-tests/nop
PASS 48 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-serial-pci/virtio/virtio-tests/nop
---
PASS 67 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/i82562/pci-device/pci-device-tests/nop
PASS 68 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/i82801/pci-device/pci-device-tests/nop
PASS 69 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/ES1370/pci-device/pci-device-tests/nop
==13301==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 70 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/megasas/pci-device/pci-device-tests/nop
PASS 71 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/megasas/megasas-tests/dcmd/pd-get-info/fuzz
PASS 72 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/ne2k_pci/pci-device/pci-device-tests/nop
PASS 73 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/nvme/pci-device/pci-device-tests/nop
==13313==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 74 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/nvme/nvme-tests/oob-cmb-access
==13319==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 75 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/pcnet/pci-device/pci-device-tests/nop
PASS 76 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/pci-ohci/pci-device/pci-device-tests/nop
PASS 77 qos-test /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/pci-ohci/pci-ohci-tests/ohci_pci-test-hotplug


The full log is available at
http://patchew.org/logs/20190909104948.30253-1-yury-kotov@yandex-team.ru/testing.asan/?type=message.
---
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Please send your feedback to patchew-devel@redhat.com
Re: [Qemu-devel] [PATCH v6 0/3] High downtime with 95+ throttle pct
Posted by no-reply@patchew.org 4 years, 7 months ago
Patchew URL: https://patchew.org/QEMU/20190909104948.30253-1-yury-kotov@yandex-team.ru/



Hi,

This series failed the docker-mingw@fedora build test. Please find the testing commands and
their output below. If you have Docker installed, you can probably reproduce it
locally.

=== TEST SCRIPT BEGIN ===
#! /bin/bash
make docker-image-fedora V=1 NETWORK=1
time make docker-test-mingw@fedora J=14 NETWORK=1
=== TEST SCRIPT END ===




The full log is available at
http://patchew.org/logs/20190909104948.30253-1-yury-kotov@yandex-team.ru/testing.docker-mingw@fedora/?type=message.
---
Email generated automatically by Patchew [https://patchew.org/].
Please send your feedback to patchew-devel@redhat.com
Re: [Qemu-devel] [PATCH v6 0/3] High downtime with 95+ throttle pct
Posted by Paolo Bonzini 4 years, 7 months ago
On 09/09/19 12:49, Yury Kotov wrote:
> Hi,
> 
> V6:
> * Fix "Add qemu_cond_timedwait" patch:
>   - Changed return type for qemu_cond_timedwait (void -> bool)
>   - Added details in commit message
> 
> V5:
> * Updated sleep loop in throttle_thread at the suggestion of Paolo Bonzini
> * Fixed hanging of test
> 
> V4:
> * The test was simplified to prevent false fails.
> 
> V3:
> * Rebase fixes (migrate_set_parameter -> migrate_set_parameter_int)
> 
> V2:
> * Added a test
> * Fixed qemu_cond_timedwait for qsp
> 
> I wrote a test for migration auto converge and found out a strange thing:
> 1. Enable auto converge
> 2. Set max-bandwidth 1Gb/s
> 3. Set downtime-limit 1ms
> 4. Run standard test (just writes a byte per page)
> 5. Wait for converge
> 6. It's converged with 99% throttle percentage
> 7. The result downtime was about 300-600ms   <<<<
> 
> It's much higher than expected 1ms. I figured out that cpu_throttle_thread()
> function sleeps for 100ms+ for high throttle percentage (>=95%) in VCPU thread.
> And it sleeps even after a cpu kick.
> 
> Fixed it by using timedwait for ms part of sleep.
> E.g timedwait(halt_cond, 1ms) + usleep(500).

Queued, thanks.

Paolo

Re: [Qemu-devel] [PATCH v6 0/3] High downtime with 95+ throttle pct
Posted by Yury Kotov 4 years, 7 months ago
Hi,

Sorry, patchew found a leak in the auto converge test. I fixed it in v7.

Also, there are two other fails, but it seems these are not related to
my changes:

Fail 1:
https://patchew.org/logs/20190909104948.30253-1-yury-kotov@yandex-team.ru/testing.docker-mingw@fedora/?type=message
...
                /tmp/qemu-test/src/qemu.nsi
File: "/tmp/qemu-test/src\README" -> no files found.
Usage: File [/nonfatal] [/a] ([/r] [/x filespec [...]] filespec [...] |
   /oname=outfile one_file_only)
Error in script "/tmp/qemu-test/src/qemu.nsi" on line 122 -- aborting creation process
...

Fail 2:
https://patchew.org/logs/20190909104948.30253-1-yury-kotov@yandex-team.ru/testing.asan/?type=message
...
SUMMARY: AddressSanitizer: stack-use-after-scope /tmp/qemu-test/src/tests/test-char.c:762:50 in char_socket_server_test
...

Regards,
Yury

09.09.2019, 14:31, "Paolo Bonzini" <pbonzini@redhat.com>:
> On 09/09/19 12:49, Yury Kotov wrote:
>>  Hi,
>>
>>  V6:
>>  * Fix "Add qemu_cond_timedwait" patch:
>>    - Changed return type for qemu_cond_timedwait (void -> bool)
>>    - Added details in commit message
>>
>>  V5:
>>  * Updated sleep loop in throttle_thread at the suggestion of Paolo Bonzini
>>  * Fixed hanging of test
>>
>>  V4:
>>  * The test was simplified to prevent false fails.
>>
>>  V3:
>>  * Rebase fixes (migrate_set_parameter -> migrate_set_parameter_int)
>>
>>  V2:
>>  * Added a test
>>  * Fixed qemu_cond_timedwait for qsp
>>
>>  I wrote a test for migration auto converge and found out a strange thing:
>>  1. Enable auto converge
>>  2. Set max-bandwidth 1Gb/s
>>  3. Set downtime-limit 1ms
>>  4. Run standard test (just writes a byte per page)
>>  5. Wait for converge
>>  6. It's converged with 99% throttle percentage
>>  7. The result downtime was about 300-600ms <<<<
>>
>>  It's much higher than expected 1ms. I figured out that cpu_throttle_thread()
>>  function sleeps for 100ms+ for high throttle percentage (>=95%) in VCPU thread.
>>  And it sleeps even after a cpu kick.
>>
>>  Fixed it by using timedwait for ms part of sleep.
>>  E.g timedwait(halt_cond, 1ms) + usleep(500).
>
> Queued, thanks.
>
> Paolo