[PATCH] D54889: Fiber support for thread sanitizer
lfy via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Dec 19 13:23:47 PST 2018
741g added a comment.
In D54889#1336755 <https://reviews.llvm.org/D54889#1336755>, @741g wrote:
> In D54889#1334710 <https://reviews.llvm.org/D54889#1334710>, @741g wrote:
>
> > In D54889#1334702 <https://reviews.llvm.org/D54889#1334702>, @yuri wrote:
> >
> > > In D54889#1334678 <https://reviews.llvm.org/D54889#1334678>, @741g wrote:
> > >
> > > > https://android-review.googlesource.com/c/platform/external/qemu/+/844675
> > > >
> > > > Latest version of patch doesn't work with QEMU anymore, at least with those annotations. Error log:
> > > >
> > > > Do you know what I'm doing wrong here?
> > >
> > >
> > >
> > > Please check if adding __attribute__((always_inline)) for start_switch_fiber() and finish_switch_fiber() helps
> >
> >
> > That worked, thanks! Sorry, I had updated the patch with a refactoring the meantime that probably actually caused the break.
>
>
> QEMU status: Fewer false positives now; there are many warnings that seem more real now, mostly about not atomically reading variables that got atomically updated. There might be other issues as well.
WARNING: ThreadSanitizer: data race (pid=3742)
Atomic write of size 1 at 0x7b0c00051620 by thread T14 (mutexes: write M1097):
#0 __tsan_atomic8_exchange /usr/local/google/home/lfy/aosp-llvm-toolchain/toolchain/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interface_atomic.cc:579:3 (qemu-system-x86_64+0x51d0a8)
#1 qemu_bh_schedule /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:167:9 (qemu-system-x86_64+0xb4675e)
#2 worker_thread /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/thread-pool.c:114:9 (qemu-system-x86_64+0xb4838c)
#3 qemu_thread_trampoline /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-thread-posix.c:551:17 (qemu-system-x86_64+0xb4fe36)
Previous read of size 1 at 0x7b0c00051620 by thread T10 (mutexes: write M985):
#0 aio_compute_timeout /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:198:17 (qemu-system-x86_64+0xb46868)
#1 aio_poll /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/aio-posix.c:617:26 (qemu-system-x86_64+0xb4c38c)
#2 blk_prw /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1247:9 (qemu-system-x86_64+0x98bbbd)
#3 blk_pread /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1409:15 (qemu-system-x86_64+0x98b91a)
#4 find_image_format /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:701:11 (qemu-system-x86_64+0x958068)
#5 bdrv_open_inherit /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:2690 (qemu-system-x86_64+0x958068)
#6 bdrv_open /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:2802:12 (qemu-system-x86_64+0x958d1f)
#7 blk_new_open /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:375:10 (qemu-system-x86_64+0x98927a)
#8 blockdev_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../blockdev.c:598:15 (qemu-system-x86_64+0x9c5700)
#9 drive_new /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../blockdev.c:1092 (qemu-system-x86_64+0x9c5700)
#10 drive_init(void*, QemuOpts*, Error**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/drive-share.cpp:366:28 (qemu-system-x86_64+0xb1e9a2)
#11 qemu_opts_foreach /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-option.c:1106:14 (qemu-system-x86_64+0xb696e5)
#12 android_drive_share_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/drive-share.cpp:530:9 (qemu-system-x86_64+0xb1e1e0)
#13 main_impl /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:5244:13 (qemu-system-x86_64+0x54f811)
#14 run_qemu_main /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:3349:21 (qemu-system-x86_64+0x547a02)
#15 enter_qemu_main_loop(int, char**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/main.cpp:606:5 (qemu-system-x86_64+0x54427c)
#16 MainLoopThread::run() /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android/android-emu/android/skin/qt/emulator-qt-window.h:73:13 (qemu-system-x86_64+0xc40b41)
#17 QThreadPrivate::start(void*) /usr/local/google/home/joshuaduong/qt-build/src/qt-everywhere-src-5.11.1/qtbase/src/corelib/thread/qthread_unix.cpp:367:14 (libQt5Core.so.5+0xa7d35)
Location is heap block of size 40 at 0x7b0c00051600 allocated by thread T13:
#0 malloc /usr/local/google/home/lfy/aosp-llvm-toolchain/toolchain/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:667:5 (qemu-system-x86_64+0x4d246c)
#1 g_malloc /tmp/jansene-build-temp-193494/src/glib-2.38.2/glib/gmem.c:104 (qemu-system-x86_64+0xecfdc0)
#2 thread_pool_init_one /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/thread-pool.c:307:27 (qemu-system-x86_64+0xb47a63)
#3 thread_pool_new /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/thread-pool.c:327 (qemu-system-x86_64+0xb47a63)
#4 aio_get_thread_pool /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:320:28 (qemu-system-x86_64+0xb46934)
#5 paio_submit_co /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/file-posix.c:1565:12 (qemu-system-x86_64+0xa15d23)
#6 raw_co_prw /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/file-posix.c:1620 (qemu-system-x86_64+0xa15d23)
#7 raw_co_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/file-posix.c:1627 (qemu-system-x86_64+0xa15d23)
#8 bdrv_driver_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/io.c:924:16 (qemu-system-x86_64+0x8d91f7)
#9 bdrv_aligned_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/io.c:1228 (qemu-system-x86_64+0x8d91f7)
#10 bdrv_co_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/io.c:1324:11 (qemu-system-x86_64+0x8d8dd7)
#11 blk_co_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1158:11 (qemu-system-x86_64+0x98b0da)
#12 blk_read_entry /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1206:17 (qemu-system-x86_64+0x98c1e3)
#13 coroutine_trampoline /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/coroutine-ucontext.c:173:9 (qemu-system-x86_64+0xb71c8a)
#14 <null> <null> (libc.so.6+0x43fcf)
Mutex M1097 (0x7b3800009bd0) created at:
#0 pthread_mutex_init /usr/local/google/home/lfy/aosp-llvm-toolchain/toolchain/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:1187:3 (qemu-system-x86_64+0x4d4ebc)
#1 qemu_mutex_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-thread-posix.c:61:11 (qemu-system-x86_64+0xb4f2a7)
#2 thread_pool_init_one /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/thread-pool.c:308:5 (qemu-system-x86_64+0xb47a7b)
#3 thread_pool_new /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/thread-pool.c:327 (qemu-system-x86_64+0xb47a7b)
#4 aio_get_thread_pool /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:320:28 (qemu-system-x86_64+0xb46934)
#5 paio_submit_co /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/file-posix.c:1565:12 (qemu-system-x86_64+0xa15d23)
#6 raw_co_prw /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/file-posix.c:1620 (qemu-system-x86_64+0xa15d23)
#7 raw_co_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/file-posix.c:1627 (qemu-system-x86_64+0xa15d23)
#8 bdrv_driver_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/io.c:924:16 (qemu-system-x86_64+0x8d91f7)
#9 bdrv_aligned_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/io.c:1228 (qemu-system-x86_64+0x8d91f7)
#10 bdrv_co_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/io.c:1324:11 (qemu-system-x86_64+0x8d8dd7)
#11 blk_co_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1158:11 (qemu-system-x86_64+0x98b0da)
#12 blk_read_entry /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1206:17 (qemu-system-x86_64+0x98c1e3)
#13 coroutine_trampoline /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/coroutine-ucontext.c:173:9 (qemu-system-x86_64+0xb71c8a)
#14 <null> <null> (libc.so.6+0x43fcf)
Mutex M985 (0x000003bb0fb8) created at:
#0 pthread_mutex_init /usr/local/google/home/lfy/aosp-llvm-toolchain/toolchain/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:1187:3 (qemu-system-x86_64+0x4d4ebc)
#1 qemu_mutex_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-thread-posix.c:61:11 (qemu-system-x86_64+0xb4f2a7)
#2 qemu_init_cpu_loop /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../cpus.c:1123:5 (qemu-system-x86_64+0x5ddb0c)
#3 main_impl /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:3437:5 (qemu-system-x86_64+0x547ae0)
#4 run_qemu_main /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:3349:21 (qemu-system-x86_64+0x547a02)
#5 enter_qemu_main_loop(int, char**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/main.cpp:606:5 (qemu-system-x86_64+0x54427c)
#6 MainLoopThread::run() /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android/android-emu/android/skin/qt/emulator-qt-window.h:73:13 (qemu-system-x86_64+0xc40b41)
#7 QThreadPrivate::start(void*) /usr/local/google/home/joshuaduong/qt-build/src/qt-everywhere-src-5.11.1/qtbase/src/corelib/thread/qthread_unix.cpp:367:14 (libQt5Core.so.5+0xa7d35)
Thread T14 (tid=3886, running) created by thread T10 at:
#0 pthread_create /usr/local/google/home/lfy/aosp-llvm-toolchain/toolchain/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:968:3 (qemu-system-x86_64+0x4d3cda)
#1 qemu_thread_create /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-thread-posix.c:591:11 (qemu-system-x86_64+0xb4fcef)
#2 do_spawn_thread /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/thread-pool.c:135:5 (qemu-system-x86_64+0xb48072)
#3 spawn_thread_bh_fn /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/thread-pool.c:143 (qemu-system-x86_64+0xb48072)
#4 aio_bh_call /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:90:5 (qemu-system-x86_64+0xb46616)
#5 aio_bh_poll /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:118 (qemu-system-x86_64+0xb46616)
#6 aio_poll /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/aio-posix.c:706:17 (qemu-system-x86_64+0xb4cf45)
#7 blk_prw /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1247:9 (qemu-system-x86_64+0x98bbbd)
#8 blk_pread /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1409:15 (qemu-system-x86_64+0x98b91a)
#9 find_image_format /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:701:11 (qemu-system-x86_64+0x958068)
#10 bdrv_open_inherit /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:2690 (qemu-system-x86_64+0x958068)
#11 bdrv_open /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:2802:12 (qemu-system-x86_64+0x958d1f)
#12 blk_new_open /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:375:10 (qemu-system-x86_64+0x98927a)
#13 blockdev_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../blockdev.c:598:15 (qemu-system-x86_64+0x9c5700)
#14 drive_new /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../blockdev.c:1092 (qemu-system-x86_64+0x9c5700)
#15 drive_init(void*, QemuOpts*, Error**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/drive-share.cpp:366:28 (qemu-system-x86_64+0xb1e9a2)
#16 qemu_opts_foreach /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-option.c:1106:14 (qemu-system-x86_64+0xb696e5)
#17 android_drive_share_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/drive-share.cpp:530:9 (qemu-system-x86_64+0xb1e1e0)
#18 main_impl /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:5244:13 (qemu-system-x86_64+0x54f811)
#19 run_qemu_main /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:3349:21 (qemu-system-x86_64+0x547a02)
#20 enter_qemu_main_loop(int, char**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/main.cpp:606:5 (qemu-system-x86_64+0x54427c)
#21 MainLoopThread::run() /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android/android-emu/android/skin/qt/emulator-qt-window.h:73:13 (qemu-system-x86_64+0xc40b41)
#22 QThreadPrivate::start(void*) /usr/local/google/home/joshuaduong/qt-build/src/qt-everywhere-src-5.11.1/qtbase/src/corelib/thread/qthread_unix.cpp:367:14 (libQt5Core.so.5+0xa7d35)
Thread T10 'MainLoopThread' (tid=3881, running) created by main thread at:
#0 pthread_create /usr/local/google/home/lfy/aosp-llvm-toolchain/toolchain/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:968:3 (qemu-system-x86_64+0x4d3cda)
#1 QThread::start(QThread::Priority) /usr/local/google/home/joshuaduong/qt-build/src/qt-everywhere-src-5.11.1/qtbase/src/corelib/thread/qthread_unix.cpp:726:16 (libQt5Core.so.5+0xa84fb)
#2 skin_winsys_spawn_thread /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android/android-emu/android/skin/qt/winsys-qt.cpp:519:17 (qemu-system-x86_64+0xbcf68b)
#3 main /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/main.cpp:1624:5 (qemu-system-x86_64+0x543f9c)
Thread T13 (tid=0, running) created by thread T10 at:
#0 on_new_fiber /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/coroutine-ucontext.c:90:25 (qemu-system-x86_64+0xb71b48)
#1 qemu_coroutine_new /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/coroutine-ucontext.c:217 (qemu-system-x86_64+0xb71b48)
#2 qemu_coroutine_create /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-coroutine.c:88:14 (qemu-system-x86_64+0xb70349)
#3 blk_prw /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1245:25 (qemu-system-x86_64+0x98baca)
#4 blk_pread /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1409:15 (qemu-system-x86_64+0x98b91a)
#5 find_image_format /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:701:11 (qemu-system-x86_64+0x958068)
#6 bdrv_open_inherit /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:2690 (qemu-system-x86_64+0x958068)
#7 bdrv_open /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:2802:12 (qemu-system-x86_64+0x958d1f)
#8 blk_new_open /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:375:10 (qemu-system-x86_64+0x98927a)
#9 blockdev_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../blockdev.c:598:15 (qemu-system-x86_64+0x9c5700)
#10 drive_new /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../blockdev.c:1092 (qemu-system-x86_64+0x9c5700)
#11 drive_init(void*, QemuOpts*, Error**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/drive-share.cpp:366:28 (qemu-system-x86_64+0xb1e9a2)
#12 qemu_opts_foreach /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-option.c:1106:14 (qemu-system-x86_64+0xb696e5)
#13 android_drive_share_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/drive-share.cpp:530:9 (qemu-system-x86_64+0xb1e1e0)
#14 main_impl /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:5244:13 (qemu-system-x86_64+0x54f811)
#15 run_qemu_main /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:3349:21 (qemu-system-x86_64+0x547a02)
#16 enter_qemu_main_loop(int, char**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/main.cpp:606:5 (qemu-system-x86_64+0x54427c)
#17 MainLoopThread::run() /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android/android-emu/android/skin/qt/emulator-qt-window.h:73:13 (qemu-system-x86_64+0xc40b41)
#18 QThreadPrivate::start(void*) /usr/local/google/home/joshuaduong/qt-build/src/qt-everywhere-src-5.11.1/qtbase/src/corelib/thread/qthread_unix.cpp:367:14 (libQt5Core.so.5+0xa7d35)
SUMMARY: ThreadSanitizer: data race /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:167:9 in qemu_bh_schedule
=======================================================================================================================================
WARNING: ThreadSanitizer: data race (pid=3742)
Read of size 4 at 0x7b4400025758 by thread T14 (mutexes: write M1097):
#0 aio_notify /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:342:14 (qemu-system-x86_64+0xb46778)
#1 qemu_bh_schedule /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:168 (qemu-system-x86_64+0xb46778)
#2 worker_thread /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/thread-pool.c:114:9 (qemu-system-x86_64+0xb4838c)
#3 qemu_thread_trampoline /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-thread-posix.c:551:17 (qemu-system-x86_64+0xb4fe36)
Previous atomic write of size 4 at 0x7b4400025758 by thread T10 (mutexes: write M985):
#0 __tsan_atomic32_fetch_add /usr/local/google/home/lfy/aosp-llvm-toolchain/toolchain/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interface_atomic.cc:616:3 (qemu-system-x86_64+0x51df18)
#1 aio_poll /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/aio-posix.c:608:9 (qemu-system-x86_64+0xb4c342)
#2 blk_prw /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1247:9 (qemu-system-x86_64+0x98bbbd)
#3 blk_pread /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1409:15 (qemu-system-x86_64+0x98b91a)
#4 find_image_format /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:701:11 (qemu-system-x86_64+0x958068)
#5 bdrv_open_inherit /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:2690 (qemu-system-x86_64+0x958068)
#6 bdrv_open /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:2802:12 (qemu-system-x86_64+0x958d1f)
#7 blk_new_open /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:375:10 (qemu-system-x86_64+0x98927a)
#8 blockdev_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../blockdev.c:598:15 (qemu-system-x86_64+0x9c5700)
#9 drive_new /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../blockdev.c:1092 (qemu-system-x86_64+0x9c5700)
#10 drive_init(void*, QemuOpts*, Error**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/drive-share.cpp:366:28 (qemu-system-x86_64+0xb1e9a2)
#11 qemu_opts_foreach /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-option.c:1106:14 (qemu-system-x86_64+0xb696e5)
#12 android_drive_share_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/drive-share.cpp:530:9 (qemu-system-x86_64+0xb1e1e0)
#13 main_impl /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:5244:13 (qemu-system-x86_64+0x54f811)
#14 run_qemu_main /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:3349:21 (qemu-system-x86_64+0x547a02)
#15 enter_qemu_main_loop(int, char**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/main.cpp:606:5 (qemu-system-x86_64+0x54427c)
#16 MainLoopThread::run() /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android/android-emu/android/skin/qt/emulator-qt-window.h:73:13 (qemu-system-x86_64+0xc40b41)
#17 QThreadPrivate::start(void*) /usr/local/google/home/joshuaduong/qt-build/src/qt-everywhere-src-5.11.1/qtbase/src/corelib/thread/qthread_unix.cpp:367:14 (libQt5Core.so.5+0xa7d35)
Location is heap block of size 296 at 0x7b44000256c0 allocated by thread T10:
#0 calloc /usr/local/google/home/lfy/aosp-llvm-toolchain/toolchain/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:684:5 (qemu-system-x86_64+0x4d26ef)
#1 g_malloc0 /tmp/jansene-build-temp-193494/src/glib-2.38.2/glib/gmem.c:134 (qemu-system-x86_64+0xecfe18)
#2 qemu_init_main_loop /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/main-loop.c:165:24 (qemu-system-x86_64+0xb4abac)
#3 main_impl /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:4605:9 (qemu-system-x86_64+0x54b937)
#4 run_qemu_main /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:3349:21 (qemu-system-x86_64+0x547a02)
#5 enter_qemu_main_loop(int, char**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/main.cpp:606:5 (qemu-system-x86_64+0x54427c)
#6 MainLoopThread::run() /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android/android-emu/android/skin/qt/emulator-qt-window.h:73:13 (qemu-system-x86_64+0xc40b41)
#7 QThreadPrivate::start(void*) /usr/local/google/home/joshuaduong/qt-build/src/qt-everywhere-src-5.11.1/qtbase/src/corelib/thread/qthread_unix.cpp:367:14 (libQt5Core.so.5+0xa7d35)
Mutex M1097 (0x7b3800009bd0) created at:
#0 pthread_mutex_init /usr/local/google/home/lfy/aosp-llvm-toolchain/toolchain/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:1187:3 (qemu-system-x86_64+0x4d4ebc)
#1 qemu_mutex_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-thread-posix.c:61:11 (qemu-system-x86_64+0xb4f2a7)
#2 thread_pool_init_one /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/thread-pool.c:308:5 (qemu-system-x86_64+0xb47a7b)
#3 thread_pool_new /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/thread-pool.c:327 (qemu-system-x86_64+0xb47a7b)
#4 aio_get_thread_pool /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:320:28 (qemu-system-x86_64+0xb46934)
#5 paio_submit_co /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/file-posix.c:1565:12 (qemu-system-x86_64+0xa15d23)
#6 raw_co_prw /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/file-posix.c:1620 (qemu-system-x86_64+0xa15d23)
#7 raw_co_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/file-posix.c:1627 (qemu-system-x86_64+0xa15d23)
#8 bdrv_driver_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/io.c:924:16 (qemu-system-x86_64+0x8d91f7)
#9 bdrv_aligned_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/io.c:1228 (qemu-system-x86_64+0x8d91f7)
#10 bdrv_co_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/io.c:1324:11 (qemu-system-x86_64+0x8d8dd7)
#11 blk_co_preadv /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1158:11 (qemu-system-x86_64+0x98b0da)
#12 blk_read_entry /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1206:17 (qemu-system-x86_64+0x98c1e3)
#13 coroutine_trampoline /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/coroutine-ucontext.c:173:9 (qemu-system-x86_64+0xb71c8a)
#14 <null> <null> (libc.so.6+0x43fcf)
Mutex M985 (0x000003bb0fb8) created at:
#0 pthread_mutex_init /usr/local/google/home/lfy/aosp-llvm-toolchain/toolchain/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:1187:3 (qemu-system-x86_64+0x4d4ebc)
#1 qemu_mutex_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-thread-posix.c:61:11 (qemu-system-x86_64+0xb4f2a7)
#2 qemu_init_cpu_loop /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../cpus.c:1123:5 (qemu-system-x86_64+0x5ddb0c)
#3 main_impl /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:3437:5 (qemu-system-x86_64+0x547ae0)
#4 run_qemu_main /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:3349:21 (qemu-system-x86_64+0x547a02)
#5 enter_qemu_main_loop(int, char**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/main.cpp:606:5 (qemu-system-x86_64+0x54427c)
#6 MainLoopThread::run() /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android/android-emu/android/skin/qt/emulator-qt-window.h:73:13 (qemu-system-x86_64+0xc40b41)
#7 QThreadPrivate::start(void*) /usr/local/google/home/joshuaduong/qt-build/src/qt-everywhere-src-5.11.1/qtbase/src/corelib/thread/qthread_unix.cpp:367:14 (libQt5Core.so.5+0xa7d35)
Thread T14 (tid=3886, running) created by thread T10 at:
#0 pthread_create /usr/local/google/home/lfy/aosp-llvm-toolchain/toolchain/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:968:3 (qemu-system-x86_64+0x4d3cda)
#1 qemu_thread_create /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-thread-posix.c:591:11 (qemu-system-x86_64+0xb4fcef)
#2 do_spawn_thread /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/thread-pool.c:135:5 (qemu-system-x86_64+0xb48072)
#3 spawn_thread_bh_fn /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/thread-pool.c:143 (qemu-system-x86_64+0xb48072)
#4 aio_bh_call /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:90:5 (qemu-system-x86_64+0xb46616)
#5 aio_bh_poll /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:118 (qemu-system-x86_64+0xb46616)
#6 aio_poll /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/aio-posix.c:706:17 (qemu-system-x86_64+0xb4cf45)
#7 blk_prw /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1247:9 (qemu-system-x86_64+0x98bbbd)
#8 blk_pread /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:1409:15 (qemu-system-x86_64+0x98b91a)
#9 find_image_format /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:701:11 (qemu-system-x86_64+0x958068)
#10 bdrv_open_inherit /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:2690 (qemu-system-x86_64+0x958068)
#11 bdrv_open /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block.c:2802:12 (qemu-system-x86_64+0x958d1f)
#12 blk_new_open /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../block/block-backend.c:375:10 (qemu-system-x86_64+0x98927a)
#13 blockdev_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../blockdev.c:598:15 (qemu-system-x86_64+0x9c5700)
#14 drive_new /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../blockdev.c:1092 (qemu-system-x86_64+0x9c5700)
#15 drive_init(void*, QemuOpts*, Error**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/drive-share.cpp:366:28 (qemu-system-x86_64+0xb1e9a2)
#16 qemu_opts_foreach /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/qemu-option.c:1106:14 (qemu-system-x86_64+0xb696e5)
#17 android_drive_share_init /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/drive-share.cpp:530:9 (qemu-system-x86_64+0xb1e1e0)
#18 main_impl /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:5244:13 (qemu-system-x86_64+0x54f811)
#19 run_qemu_main /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../vl.c:3349:21 (qemu-system-x86_64+0x547a02)
#20 enter_qemu_main_loop(int, char**) /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/main.cpp:606:5 (qemu-system-x86_64+0x54427c)
#21 MainLoopThread::run() /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android/android-emu/android/skin/qt/emulator-qt-window.h:73:13 (qemu-system-x86_64+0xc40b41)
#22 QThreadPrivate::start(void*) /usr/local/google/home/joshuaduong/qt-build/src/qt-everywhere-src-5.11.1/qtbase/src/corelib/thread/qthread_unix.cpp:367:14 (libQt5Core.so.5+0xa7d35)
Thread T10 'MainLoopThread' (tid=3881, running) created by main thread at:
#0 pthread_create /usr/local/google/home/lfy/aosp-llvm-toolchain/toolchain/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:968:3 (qemu-system-x86_64+0x4d3cda)
#1 QThread::start(QThread::Priority) /usr/local/google/home/joshuaduong/qt-build/src/qt-everywhere-src-5.11.1/qtbase/src/corelib/thread/qthread_unix.cpp:726:16 (libQt5Core.so.5+0xa84fb)
#2 skin_winsys_spawn_thread /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android/android-emu/android/skin/qt/winsys-qt.cpp:519:17 (qemu-system-x86_64+0xbcf68b)
#3 main /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../android-qemu2-glue/main.cpp:1624:5 (qemu-system-x86_64+0x543f9c)
SUMMARY: ThreadSanitizer: data race /usr/local/google/home/lfy/emu2/master/external/qemu/objs/../util/async.c:342:14 in aio_notify
==================================================================================================================================
Repository:
rCRT Compiler Runtime
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https://reviews.llvm.org/D54889/new/
https://reviews.llvm.org/D54889
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