Re: [Qemu-devel] [PULL 0/3] Bitmaps patches

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Re: [Qemu-devel] [PULL 0/3] Bitmaps patches

From:	John Snow
Subject:	Re: [Qemu-devel] [PULL 0/3] Bitmaps patches
Date:	Wed, 29 May 2019 09:56:15 -0400
User-agent:	Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1

On 5/28/19 8:54 PM, address@hidden wrote:
> Patchew URL: https://patchew.org/QEMU/address@hidden/
> 
> 
> 
> 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.
> 

Hm, I don't understand this output too well; is this truly related to my
patches? It looks like some noise around aio_notify, if this is the
actual error text that caused the failure:

PASS 19 test-bdrv-drain /bdrv-drain/iothread/drain
=================================================================
==10624==ERROR: AddressSanitizer: heap-use-after-free on address
0x612000030e70 at pc 0x558de21c3386 bp 0x7fcb8aeb8000 sp 0x7fcb8aeb7ff8
WRITE of size 1 at 0x612000030e70 thread T15
PASS 1 ahci-test /x86_64/ahci/sanity
==10643==WARNING: ASan doesn't fully support makecontext/swapcontext
functions and may produce false positives in some cases!
    #0 0x558de21c3385 in aio_notify /tmp/qemu-test/src/util/async.c:352:9
    #1 0x558de21c4ffb in qemu_bh_schedule
/tmp/qemu-test/src/util/async.c:168:9
    #2 0x558de21c8202 in aio_co_schedule
/tmp/qemu-test/src/util/async.c:465:5
    #3 0x558de21c84d9 in aio_co_enter /tmp/qemu-test/src/util/async.c:484:9
    #4 0x558de21c845d in aio_co_wake /tmp/qemu-test/src/util/async.c:478:5
    #5 0x558de1abada4 in co_reenter_bh
/tmp/qemu-test/src/tests/test-bdrv-drain.c:63:5
    #6 0x558de21c3c6a in aio_bh_call /tmp/qemu-test/src/util/async.c:90:5
    #7 0x558de21c4382 in aio_bh_poll /tmp/qemu-test/src/util/async.c:118:13
    #8 0x558de21e9ee3 in aio_poll /tmp/qemu-test/src/util/aio-posix.c:729:17
    #9 0x558de208d92a in iothread_run
/tmp/qemu-test/src/tests/iothread.c:51:9
    #10 0x558de21fdb12 in qemu_thread_start
/tmp/qemu-test/src/util/qemu-thread-posix.c:502:9
    #11 0x7fcb9d63c58d in start_thread (/lib64/libpthread.so.0+0x858d)
    #12 0x7fcb9d54a682 in __GI___clone (/lib64/libc.so.6+0xfd682)

0x612000030e70 is located 176 bytes inside of 312-byte region
[0x612000030dc0,0x612000030ef8)
freed by thread T0 here:
    #0 0x558de1a6c3a0 in free
(/tmp/qemu-test/build/tests/test-bdrv-drain+0x5193a0)
    #1 0x7fcb9da4fed1 in g_free (/lib64/libglib-2.0.so.0+0x54ed1)

previously allocated by thread T14 here:
    #0 0x558de1a6c9cf in calloc
(/tmp/qemu-test/build/tests/test-bdrv-drain+0x5199cf)
    #1 0x7fcb9da4fe1d in g_malloc0 (/lib64/libglib-2.0.so.0+0x54e1d)

Thread T15 created by T0 here:
    #0 0x558de19c3074 in __interceptor_pthread_create
(/tmp/qemu-test/build/tests/test-bdrv-drain+0x470074)
    #1 0x558de21fd40f in qemu_thread_create
/tmp/qemu-test/src/util/qemu-thread-posix.c:539:11
    #2 0x558de208cfc7 in iothread_new
/tmp/qemu-test/src/tests/iothread.c:75:5
    #3 0x558de1abbdd4 in test_iothread_common
/tmp/qemu-test/src/tests/test-bdrv-drain.c:664:19
    #4 0x558de1ab6c9e in test_iothread_drain_subtree
/tmp/qemu-test/src/tests/test-bdrv-drain.c:771:5
    #5 0x7fcb9da71fc9  (/lib64/libglib-2.0.so.0+0x76fc9)

Thread T14 created by T0 here:
    #0 0x558de19c3074 in __interceptor_pthread_create
(/tmp/qemu-test/build/tests/test-bdrv-drain+0x470074)
    #1 0x558de21fd40f in qemu_thread_create
/tmp/qemu-test/src/util/qemu-thread-posix.c:539:11
    #2 0x558de208cfc7 in iothread_new
/tmp/qemu-test/src/tests/iothread.c:75:5
    #3 0x558de1abbdc8 in test_iothread_common
/tmp/qemu-test/src/tests/test-bdrv-drain.c:663:19
    #4 0x558de1ab6c9e in test_iothread_drain_subtree
/tmp/qemu-test/src/tests/test-bdrv-drain.c:771:5
    #5 0x7fcb9da71fc9  (/lib64/libglib-2.0.so.0+0x76fc9)

SUMMARY: AddressSanitizer: heap-use-after-free
/tmp/qemu-test/src/util/async.c:352:9 in aio_notify
Shadow bytes around the buggy address:
  0x0c247fffe170: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c247fffe180: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
  0x0c247fffe190: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c247fffe1a0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fa
  0x0c247fffe1b0: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
=>0x0c247fffe1c0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd
  0x0c247fffe1d0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fa
  0x0c247fffe1e0: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
  0x0c247fffe1f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c247fffe200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fa fa
  0x0c247fffe210: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==10624==ABORTING
ERROR - too few tests run (expected 39, got 19)
make: *** [/tmp/qemu-test/src/tests/Makefile.include:889: check-unit]
Error 1
make: *** Waiting for unfinished jobs....

> === TEST SCRIPT BEGIN ===
> #!/bin/bash
> time make address@hidden TARGET_LIST=x86_64-softmmu J=14 NETWORK=1
> === TEST SCRIPT END ===
> 
> PASS 3 endianness-test /x86_64/endianness/combine/pc
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  
> tests/test-coroutine -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl 
> --test-name="test-coroutine" 
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  
> QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img 
> tests/fdc-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl 
> --test-name="fdc-test" 
> ==10394==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 1 test-coroutine /basic/no-dangling-access
> PASS 2 test-coroutine /basic/lifecycle
> PASS 3 test-coroutine /basic/yield
> ==10394==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffe0e2b1000; bottom 0x7f0537af8000; size: 0x00f8d67b9000 
> (1068750311424)
> False positive error reports may follow
> For details see https://github.com/google/sanitizers/issues/189
> PASS 4 test-coroutine /basic/nesting
> ---
> PASS 1 fdc-test /x86_64/fdc/cmos
> PASS 2 fdc-test /x86_64/fdc/no_media_on_start
> PASS 3 fdc-test /x86_64/fdc/read_without_media
> ==10399==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 4 fdc-test /x86_64/fdc/media_change
> PASS 1 test-iov /basic/iov/from-to-buf
> PASS 5 fdc-test /x86_64/fdc/sense_interrupt
> ---
> PASS 11 test-aio /aio/event/wait
> PASS 12 test-aio /aio/event/flush
> PASS 13 test-aio /aio/event/wait/no-flush-cb
> ==10417==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 14 test-aio /aio/timer/schedule
> PASS 15 test-aio /aio/coroutine/queue-chaining
> PASS 16 test-aio /aio-gsource/flush
> ---
> PASS 28 test-aio /aio-gsource/timer/schedule
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  
> tests/test-aio-multithread -m=quick -k --tap < /dev/null | 
> ./scripts/tap-driver.pl --test-name="test-aio-multithread" 
> PASS 1 test-aio-multithread /aio/multi/lifecycle
> ==10423==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 2 test-aio-multithread /aio/multi/schedule
> PASS 3 test-aio-multithread /aio/multi/mutex/contended
> PASS 12 fdc-test /x86_64/fdc/read_no_dma_19
> PASS 13 fdc-test /x86_64/fdc/fuzz-registers
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  
> QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img 
> tests/ide-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl 
> --test-name="ide-test" 
> PASS 4 test-aio-multithread /aio/multi/mutex/handoff
> ==10451==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 1 ide-test /x86_64/ide/identify
> ==10462==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 5 test-aio-multithread /aio/multi/mutex/mcs
> PASS 2 ide-test /x86_64/ide/flush
> ==10473==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 6 test-aio-multithread /aio/multi/mutex/pthread
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  
> tests/test-throttle -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl 
> --test-name="test-throttle" 
> PASS 1 test-throttle /throttle/leak_bucket
> ---
> PASS 6 test-throttle /throttle/detach_attach
> PASS 7 test-throttle /throttle/config_functions
> PASS 8 test-throttle /throttle/accounting
> ==10481==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 9 test-throttle /throttle/groups
> PASS 10 test-throttle /throttle/config/enabled
> PASS 11 test-throttle /throttle/config/conflicting
> ---
> PASS 1 test-thread-pool /thread-pool/submit
> PASS 2 test-thread-pool /thread-pool/submit-aio
> PASS 3 test-thread-pool /thread-pool/submit-co
> ==10488==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 4 test-thread-pool /thread-pool/submit-many
> ==10485==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
> ==10539==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
> ==10546==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 5 test-thread-pool /thread-pool/cancel
> PASS 6 ide-test /x86_64/ide/bmdma/one_sector_short_prdt
> ==10552==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
> ==10558==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10558==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffd8c683000; bottom 0x7f81b4746000; size: 0x007bd7f3d000 
> (531904057344)
> False positive error reports may follow
> For details see https://github.com/google/sanitizers/issues/189
> PASS 6 test-thread-pool /thread-pool/cancel-async
> ---
> PASS 12 test-hbitmap /hbitmap/set/two-elem
> PASS 13 test-hbitmap /hbitmap/set/general
> PASS 14 test-hbitmap /hbitmap/set/twice
> ==10574==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 15 test-hbitmap /hbitmap/set/overlap
> PASS 16 test-hbitmap /hbitmap/reset/empty
> PASS 10 ide-test /x86_64/ide/flush/empty_drive
> PASS 17 test-hbitmap /hbitmap/reset/general
> ==10579==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 18 test-hbitmap /hbitmap/reset/all
> PASS 19 test-hbitmap /hbitmap/truncate/nop
> PASS 20 test-hbitmap /hbitmap/truncate/grow/negligible
> ---
> PASS 29 test-hbitmap /hbitmap/truncate/shrink/large
> PASS 30 test-hbitmap /hbitmap/meta/zero
> PASS 11 ide-test /x86_64/ide/flush/retry_pci
> ==10585==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
> ==10591==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
> ==10597==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
> ==10603==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 31 test-hbitmap /hbitmap/meta/one
> PASS 32 test-hbitmap /hbitmap/meta/byte
> PASS 33 test-hbitmap /hbitmap/meta/word
> ---
> PASS 41 test-hbitmap /hbitmap/next_dirty_area/next_dirty_area_0
> PASS 42 test-hbitmap /hbitmap/next_dirty_area/next_dirty_area_1
> PASS 43 test-hbitmap /hbitmap/next_dirty_area/next_dirty_area_4
> ==10617==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  
> tests/test-bdrv-drain -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl 
> --test-name="test-bdrv-drain" 
> ==10624==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 1 test-bdrv-drain /bdrv-drain/nested
> PASS 2 test-bdrv-drain /bdrv-drain/multiparent
> PASS 3 test-bdrv-drain /bdrv-drain/set_aio_context
> ---
> PASS 18 test-bdrv-drain /bdrv-drain/iothread/drain_all
> PASS 19 test-bdrv-drain /bdrv-drain/iothread/drain
> =================================================================
> ==10624==ERROR: AddressSanitizer: heap-use-after-free on address 
> 0x612000030e70 at pc 0x558de21c3386 bp 0x7fcb8aeb8000 sp 0x7fcb8aeb7ff8
> WRITE of size 1 at 0x612000030e70 thread T15
> PASS 1 ahci-test /x86_64/ahci/sanity
> ==10643==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
>     #0 0x558de21c3385 in aio_notify /tmp/qemu-test/src/util/async.c:352:9
>     #1 0x558de21c4ffb in qemu_bh_schedule 
> /tmp/qemu-test/src/util/async.c:168:9
>     #2 0x558de21c8202 in aio_co_schedule /tmp/qemu-test/src/util/async.c:465:5
> ---
>   Right alloca redzone:    cb
>   Shadow gap:              cc
> ==10624==ABORTING
> ERROR - too few tests run (expected 39, got 19)
> make: *** [/tmp/qemu-test/src/tests/Makefile.include:889: check-unit] Error 1
> make: *** Waiting for unfinished jobs....
> PASS 2 ahci-test /x86_64/ahci/pci_spec
> ==10649==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
> ==10655==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
> ==10661==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
> ==10667==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
> ==10673==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
> ==10679==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
> ==10685==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10685==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffefa8da000; bottom 0x7f80491fe000; size: 0x007eb16dc000 
> (544142639104)
> 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
> ==10691==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10691==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffd7d207000; bottom 0x7f6915ffe000; size: 0x009467209000 
> (637385347072)
> 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
> ==10697==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10697==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffd8cfa0000; bottom 0x7efbdbffe000; size: 0x0101b0fa2000 
> (1106775777280)
> 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
> ==10703==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10703==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffc34322000; bottom 0x7f42729fe000; size: 0x00b9c1924000 
> (797816537088)
> 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
> ==10709==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10709==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7fffecab3000; bottom 0x7f3e2d1fe000; size: 0x00c1bf8b5000 
> (832142266368)
> 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
> ==10715==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10715==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffd87d56000; bottom 0x7f1b88bfe000; size: 0x00e1ff158000 
> (970647240704)
> 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
> ==10721==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10721==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffd6ae21000; bottom 0x7fe9395fe000; size: 0x001431823000 (86729961472)
> 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
> ==10727==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10727==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffe500fa000; bottom 0x7fed11f7c000; size: 0x00113e17e000 (74056196096)
> 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
> ==10733==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10733==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7fff2ca88000; bottom 0x7f7bb477c000; size: 0x00837830c000 
> (564657176576)
> 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
> ==10739==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
> ==10745==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
> ==10751==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
> ==10757==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10757==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7fff161d0000; bottom 0x7f3cac1fe000; size: 0x00c269fd2000 
> (835001851904)
> 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
> ==10763==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10763==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffed9405000; bottom 0x7fd8ec5fe000; size: 0x0025ece07000 
> (162887921664)
> 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
> ==10769==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10769==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7fff2bdc5000; bottom 0x7f39d41fe000; size: 0x00c557bc7000 
> (847580524544)
> 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
> ==10775==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10775==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffff35d5000; bottom 0x7f869e1fe000; size: 0x0079553d7000 
> (521121132544)
> 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
> ==10781==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10781==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7fffaa76f000; bottom 0x7f62f7ffe000; size: 0x009cb2771000 
> (673009045504)
> 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
> ==10787==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10787==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffe16878000; bottom 0x7fb9063fe000; size: 0x00451047a000 
> (296625872896)
> 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
> ==10793==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10793==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7fffc8111000; bottom 0x7f36227fe000; size: 0x00c9a5913000 
> (866066182144)
> 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
> ==10799==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10799==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffdc81a0000; bottom 0x7f4624bfe000; size: 0x00b7a35a2000 
> (788719607808)
> 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
> ==10805==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==10805==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7fff58ed0000; bottom 0x7f9fedd7c000; size: 0x005f6b154000 
> (409818447872)
> 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
> ==10811==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
> ==10817==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
> ==10823==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
> ==10829==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
> ==10835==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
> ==10841==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
> ==10847==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
> ==10853==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
> ==10859==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
> ==10865==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
> ==10871==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
> ==10877==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
> ==10883==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
> ==10889==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
> ==10895==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
> ==10901==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
> ==10907==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
> ==10913==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
> ==10919==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
> ==10925==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
> ==10931==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
> ==10938==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
> ==10944==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
> ==10950==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
> ==10956==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
> ==10962==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
> ==10968==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
> ==10974==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
> ==10980==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
> ==10986==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
> ==10992==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
> ==10998==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
> ==11004==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
> ==11010==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==11015==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
> ==11024==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==11029==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
> ==11039==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==11044==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
> ==11053==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==11058==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
> ==11067==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==11072==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
> ==11081==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==11086==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
> ==11095==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
> ==11100==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
> ==11106==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
> ==11112==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
> ==11118==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> ==11118==WARNING: ASan is ignoring requested __asan_handle_no_return: stack 
> top: 0x7ffc1f6d7000; bottom 0x7f53eb1fe000; size: 0x00a8344d9000 
> (722432004096)
> 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
> ==11124==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_:-$(( ${RANDOM:-0} % 255 + 1))}  
> QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img 
> tests/hd-geo-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl 
> --test-name="hd-geo-test" 
> PASS 1 hd-geo-test /x86_64/hd-geo/ide/none
> ==11138==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 2 hd-geo-test /x86_64/hd-geo/ide/drive/cd_0
> ==11144==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 3 hd-geo-test /x86_64/hd-geo/ide/drive/mbr/blank
> ==11150==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 4 hd-geo-test /x86_64/hd-geo/ide/drive/mbr/lba
> ==11156==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 5 hd-geo-test /x86_64/hd-geo/ide/drive/mbr/chs
> ==11162==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 6 hd-geo-test /x86_64/hd-geo/ide/device/mbr/blank
> ==11168==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 7 hd-geo-test /x86_64/hd-geo/ide/device/mbr/lba
> ==11174==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 8 hd-geo-test /x86_64/hd-geo/ide/device/mbr/chs
> ==11180==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 9 hd-geo-test /x86_64/hd-geo/ide/device/user/chs
> ==11185==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 10 hd-geo-test /x86_64/hd-geo/ide/device/user/chst
> MALLOC_PERTURB_=${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
> ==11253==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 1 bios-tables-test /x86_64/acpi/piix4
> 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
> ==11259==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 2 bios-tables-test /x86_64/acpi/q35
> 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
> ==11265==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 3 bios-tables-test /x86_64/acpi/piix4/bridge
> 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
> ==11271==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 4 bios-tables-test /x86_64/acpi/piix4/ipmi
> 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
> ==11277==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 5 bios-tables-test /x86_64/acpi/piix4/cpuhp
> 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
> ==11284==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 6 bios-tables-test /x86_64/acpi/piix4/memhp
> 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
> ==11290==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 7 bios-tables-test /x86_64/acpi/piix4/numamem
> 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
> ==11296==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 8 bios-tables-test /x86_64/acpi/piix4/dimmpxm
> 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
> ==11305==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 9 bios-tables-test /x86_64/acpi/q35/bridge
> 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
> ==11311==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 10 bios-tables-test /x86_64/acpi/q35/mmio64
> 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
> ==11317==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 11 bios-tables-test /x86_64/acpi/q35/ipmi
> 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
> ==11323==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 12 bios-tables-test /x86_64/acpi/q35/cpuhp
> 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
> ==11330==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 13 bios-tables-test /x86_64/acpi/q35/memhp
> 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
> ==11336==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 14 bios-tables-test /x86_64/acpi/q35/numamem
> 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
> ==11342==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 15 bios-tables-test /x86_64/acpi/q35/dimmpxm
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  
> QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img 
> tests/boot-serial-test -m=quick -k --tap < /dev/null | 
> ./scripts/tap-driver.pl --test-name="boot-serial-test" 
> PASS 1 boot-serial-test /x86_64/boot-serial/isapc
> ---
> PASS 1 i440fx-test /x86_64/i440fx/defaults
> PASS 2 i440fx-test /x86_64/i440fx/pam
> PASS 3 i440fx-test /x86_64/i440fx/firmware/bios
> ==11426==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 4 i440fx-test /x86_64/i440fx/firmware/pflash
> MALLOC_PERTURB_=${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_:-$(( ${RANDOM:-0} % 255 + 1))}  
> QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img 
> tests/drive_del-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl 
> --test-name="drive_del-test" 
> PASS 1 drive_del-test /x86_64/drive_del/without-dev
> PASS 2 drive_del-test /x86_64/drive_del/after_failed_device_add
> ==11514==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 3 drive_del-test /x86_64/blockdev/drive_del_device_del
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  
> QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img 
> tests/wdt_ib700-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl 
> --test-name="wdt_ib700-test" 
> PASS 1 wdt_ib700-test /x86_64/wdt_ib700/pause
> ---
> PASS 1 usb-hcd-uhci-test /x86_64/uhci/pci/init
> PASS 2 usb-hcd-uhci-test /x86_64/uhci/pci/port1
> PASS 3 usb-hcd-uhci-test /x86_64/uhci/pci/hotplug
> ==11709==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 4 usb-hcd-uhci-test /x86_64/uhci/pci/hotplug/usb-storage
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  
> QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img 
> tests/usb-hcd-xhci-test -m=quick -k --tap < /dev/null | 
> ./scripts/tap-driver.pl --test-name="usb-hcd-xhci-test" 
> PASS 1 usb-hcd-xhci-test /x86_64/xhci/pci/init
> PASS 2 usb-hcd-xhci-test /x86_64/xhci/pci/hotplug
> ==11718==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 3 usb-hcd-xhci-test /x86_64/xhci/pci/hotplug/usb-uas
> PASS 4 usb-hcd-xhci-test /x86_64/xhci/pci/hotplug/usb-ccid
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  
> QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img 
> tests/cpu-plug-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl 
> --test-name="cpu-plug-test" 
> ---
> Could not access KVM kernel module: No such file or directory
> qemu-system-x86_64: failed to initialize KVM: No such file or directory
> qemu-system-x86_64: Back to tcg accelerator
> ==11824==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 1 vmgenid-test /x86_64/vmgenid/vmgenid/set-guid
> Could not access KVM kernel module: No such file or directory
> qemu-system-x86_64: failed to initialize KVM: No such file or directory
> qemu-system-x86_64: Back to tcg accelerator
> ==11830==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 2 vmgenid-test /x86_64/vmgenid/vmgenid/set-guid-auto
> Could not access KVM kernel module: No such file or directory
> qemu-system-x86_64: failed to initialize KVM: No such file or directory
> qemu-system-x86_64: Back to tcg accelerator
> ==11836==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 3 vmgenid-test /x86_64/vmgenid/vmgenid/query-monitor
> MALLOC_PERTURB_=${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
> ==11941==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
> ==11946==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 3 migration-test /x86_64/migration/postcopy/unix
> PASS 4 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
> ==11976==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
> ==11981==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 5 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
> ==11990==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
> ==11995==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 6 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
> ==12004==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
> ==12009==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 7 migration-test /x86_64/migration/xbzrle/unix
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  
> QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img 
> tests/test-x86-cpuid-compat -m=quick -k --tap < /dev/null | 
> ./scripts/tap-driver.pl --test-name="test-x86-cpuid-compat" 
> PASS 1 test-x86-cpuid-compat /x86/cpuid/parsing-plus-minus
> ---
> PASS 6 numa-test /x86_64/numa/pc/dynamic/cpu
> MALLOC_PERTURB_=${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
> ==12338==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
> ==12747==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
> ==12760==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
> ==12767==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
> ==12774==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
> ==12781==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
> ==12788==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
> ==12795==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
> ==12802==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
> ==12809==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
> ==12920==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
> ==12926==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
> ==12932==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
> PASS 46 qos-test 
> /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-serial-pci/pci-device/pci-device-tests/nop
> PASS 47 qos-test 
> /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/virtio-serial-pci/virtio/virtio-tests/nop
> ---
> PASS 66 qos-test 
> /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/i82562/pci-device/pci-device-tests/nop
> PASS 67 qos-test 
> /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/i82801/pci-device/pci-device-tests/nop
> PASS 68 qos-test 
> /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/ES1370/pci-device/pci-device-tests/nop
> ==13070==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 69 qos-test 
> /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/megasas/pci-device/pci-device-tests/nop
> PASS 70 qos-test 
> /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/megasas/megasas-tests/dcmd/pd-get-info/fuzz
> PASS 71 qos-test 
> /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/ne2k_pci/pci-device/pci-device-tests/nop
> PASS 72 qos-test 
> /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/nvme/pci-device/pci-device-tests/nop
> ==13082==WARNING: ASan doesn't fully support makecontext/swapcontext 
> functions and may produce false positives in some cases!
> PASS 73 qos-test 
> /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/nvme/nvme-tests/oob-cmb-access
> ==13088==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/pcnet/pci-device/pci-device-tests/nop
> PASS 75 qos-test 
> /x86_64/pc/i440FX-pcihost/pci-bus-pc/pci-bus/pci-ohci/pci-device/pci-device-tests/nop
> PASS 76 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/address@hidden/testing.asan/?type=message.
> ---
> Email generated automatically by Patchew [https://patchew.org/].
> Please send your feedback to address@hidden
> 

-- 
—js
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[Qemu-devel] [PULL 0/3] Bitmaps patches, John Snow, 2019/05/28
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