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Deadlock on isolate shutdown #26684

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fsc8000 opened this issue Jun 10, 2016 · 1 comment
Closed

Deadlock on isolate shutdown #26684

fsc8000 opened this issue Jun 10, 2016 · 1 comment
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@fsc8000
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area-vm Use area-vm for VM related issues, including code coverage, FFI, and the AOT and JIT backends.

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@fsc8000
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fsc8000 commented Jun 10, 2016

This occurs sometimes on the buildbot, causing flaky timeouts.

FAILED: none-vm release_x64 vm/dart/spawn_shutdown_test
Expected: Pass 
Actual: Timeout
CommandOutput[vm]:

stdout:
Starting 50 workers...
Waiting for 0:00:02.000000 before exit...


Command[vm]: DART_CONFIGURATION=ReleaseX64 xcodebuild/ReleaseX64/dart --ignore-unrecognized-flags --package-root=xcodebuild/ReleaseX64/packages/ /b/build/slave/vm-mac-release-x64-be/build/sdk/runtime/tests/vm/dart/spawn_shutdown_test.dart
Took 0:01:00.017116

Short reproduction command (experimental):
    python tools/test.py -mrelease --write-debug-log --write-test-outcome-log --copy-coredumps --exclude-suite pkg -t60 vm/dart/spawn_shutdown_test
@fsc8000 fsc8000 added the area-vm Use area-vm for VM related issues, including code coverage, FFI, and the AOT and JIT backends. label Jun 10, 2016
@fsc8000 fsc8000 self-assigned this Jun 10, 2016
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fsc8000 commented Jun 10, 2016

Backtrace:

(lldb) thread backtrace all
* thread #1: tid = 0x1ee555, 0x00007fff984d1db6 libsystem_kernel.dylib`__psynch_cvwait + 10, stop reason = signal SIGSTOP
  * frame #0: 0x00007fff984d1db6 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff95d2c728 libsystem_pthread.dylib`_pthread_cond_wait + 767
    frame #2: 0x000000010d68b162 dart`dart::Monitor::WaitMicros(this=<unavailable>, micros=<unavailable>) + 162 at os_thread_macos.cc:379
    frame #3: 0x000000010d5035ea dart`dart::Dart::Cleanup() [inlined] dart::MonitorLocker::Wait(millis=0) + 586 at lockers.h:169
    frame #4: 0x000000010d5035e2 dart`dart::Dart::Cleanup() [inlined] dart::Dart::WaitForIsolateShutdown() + 43 at dart.cc:319
    frame #5: 0x000000010d5035b7 dart`dart::Dart::Cleanup() + 535 at dart.cc:387
    frame #6: 0x000000010d3d0279 dart`::Dart_Cleanup() + 89 at dart_api_impl.cc:1179
    frame #7: 0x000000010d3bfee3 dart`dart::bin::main(argc=4, argv=0x00007fff52842a18) + 1827 at main.cc:1712
    frame #8: 0x000000010d3c0819 dart`main(argc=<unavailable>, argv=<unavailable>) + 9 at main.cc:1746
    frame #9: 0x00007fff90f815ad libdyld.dylib`start + 1
    frame #10: 0x00007fff90f815ad libdyld.dylib`start + 1

  thread #2: tid = 0x1ee556, 0x00007fff984d2eca libsystem_kernel.dylib`kevent + 10
    frame #0: 0x00007fff984d2eca libsystem_kernel.dylib`kevent + 10
    frame #1: 0x000000010d403f88 dart`dart::bin::EventHandlerImplementation::EventHandlerEntry(args=140495246390656) + 264 at eventhandler_macos.cc:461
    frame #2: 0x000000010d400dfe dart`dart::bin::ThreadStart(data_ptr=<unavailable>) + 30 at thread_macos.cc:83
    frame #3: 0x00007fff95d2b99d libsystem_pthread.dylib`_pthread_body + 131
    frame #4: 0x00007fff95d2b91a libsystem_pthread.dylib`_pthread_start + 168
    frame #5: 0x00007fff95d29351 libsystem_pthread.dylib`thread_start + 13

  thread #3: tid = 0x1ee569, 0x00007fff984d1db6 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #0: 0x00007fff984d1db6 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff95d2c728 libsystem_pthread.dylib`_pthread_cond_wait + 767
    frame #2: 0x000000010d401692 dart`dart::bin::Monitor::WaitMicros(this=<unavailable>, micros=<unavailable>) + 162 at thread_macos.cc:301
    frame #3: 0x000000010d400b3a dart`dart::bin::Loader::LibraryTagHandler(Dart_LibraryTag, _Dart_Handle*, _Dart_Handle*) [inlined] dart::bin::MonitorLocker::Wait(millis=0) + 522 at lockers.h:44
    frame #4: 0x000000010d400b28 dart`dart::bin::Loader::LibraryTagHandler(Dart_LibraryTag, _Dart_Handle*, _Dart_Handle*) [inlined] dart::bin::Loader::BlockUntilComplete(this=<unavailable>) + 15 at loader.cc:210
    frame #5: 0x000000010d400b19 dart`dart::bin::Loader::LibraryTagHandler(tag=<unavailable>, library=<unavailable>, url=<unavailable>) + 489 at loader.cc:459
    frame #6: 0x000000010d3bf2f1 dart`dart::bin::CreateIsolateAndSetupHelper(script_uri="file:///Users/fschneider/dartgit/sdk/runtime/tests/vm/dart/spawn_shutdown_test.dart", main=<unavailable>, package_root="file:///Users/fschneider/dartgit/sdk/xcodebuild/ReleaseX64/packages/", packages_config=0x0000000000000000, flags=0x0000700001439e08, error=0x0000700001439e10, exit_code=0x0000700001439de4) + 1569 at main.cc:780
    frame #7: 0x000000010d3c03d1 dart`dart::bin::CreateIsolateAndSetup(script_uri=<unavailable>, main=<unavailable>, package_root=<unavailable>, package_config=<unavailable>, flags=<unavailable>, data=<unavailable>, error=<unavailable>) + 65 at main.cc:828
    frame #8: 0x000000010d443c9c dart`dart::SpawnIsolateTask::Run(this=0x00007fc79d303ca0) + 92 at isolate.cc:158
    frame #9: 0x000000010d7723c6 dart`dart::ThreadPool::Worker::Loop(this=0x00007fc79d001cc0) + 54 at thread_pool.cc:407
    frame #10: 0x000000010d77228c dart`dart::ThreadPool::Worker::Main(args=140495309249728) + 108 at thread_pool.cc:464
    frame #11: 0x000000010d68a6c7 dart`dart::ThreadStart(data_ptr=<unavailable>) + 71 at os_thread_macos.cc:97
    frame #12: 0x00007fff95d2b99d libsystem_pthread.dylib`_pthread_body + 131
    frame #13: 0x00007fff95d2b91a libsystem_pthread.dylib`_pthread_start + 168
    frame #14: 0x00007fff95d29351 libsystem_pthread.dylib`thread_start + 13

  thread #4: tid = 0x1ee57d, 0x00007fff984d1db6 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #0: 0x00007fff984d1db6 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff95d2c728 libsystem_pthread.dylib`_pthread_cond_wait + 767
    frame #2: 0x000000010d401692 dart`dart::bin::Monitor::WaitMicros(this=<unavailable>, micros=<unavailable>) + 162 at thread_macos.cc:301
    frame #3: 0x000000010d400b3a dart`dart::bin::Loader::LibraryTagHandler(Dart_LibraryTag, _Dart_Handle*, _Dart_Handle*) [inlined] dart::bin::MonitorLocker::Wait(millis=0) + 522 at lockers.h:44
    frame #4: 0x000000010d400b28 dart`dart::bin::Loader::LibraryTagHandler(Dart_LibraryTag, _Dart_Handle*, _Dart_Handle*) [inlined] dart::bin::Loader::BlockUntilComplete(this=<unavailable>) + 15 at loader.cc:210
    frame #5: 0x000000010d400b19 dart`dart::bin::Loader::LibraryTagHandler(tag=<unavailable>, library=<unavailable>, url=<unavailable>) + 489 at loader.cc:459
    frame #6: 0x000000010d3bf2f1 dart`dart::bin::CreateIsolateAndSetupHelper(script_uri="file:///Users/fschneider/dartgit/sdk/runtime/tests/vm/dart/spawn_shutdown_test.dart", main=<unavailable>, package_root="file:///Users/fschneider/dartgit/sdk/xcodebuild/ReleaseX64/packages/", packages_config=0x0000000000000000, flags=0x0000700002875e08, error=0x0000700002875e10, exit_code=0x0000700002875de4) + 1569 at main.cc:780
    frame #7: 0x000000010d3c03d1 dart`dart::bin::CreateIsolateAndSetup(script_uri=<unavailable>, main=<unavailable>, package_root=<unavailable>, package_config=<unavailable>, flags=<unavailable>, data=<unavailable>, error=<unavailable>) + 65 at main.cc:828
    frame #8: 0x000000010d443c9c dart`dart::SpawnIsolateTask::Run(this=0x00007fc79d30fdb0) + 92 at isolate.cc:158
    frame #9: 0x000000010d7723c6 dart`dart::ThreadPool::Worker::Loop(this=0x00007fc79950bc20) + 54 at thread_pool.cc:407
    frame #10: 0x000000010d77228c dart`dart::ThreadPool::Worker::Main(args=140495247424544) + 108 at thread_pool.cc:464
    frame #11: 0x000000010d68a6c7 dart`dart::ThreadStart(data_ptr=<unavailable>) + 71 at os_thread_macos.cc:97
    frame #12: 0x00007fff95d2b99d libsystem_pthread.dylib`_pthread_body + 131
    frame #13: 0x00007fff95d2b91a libsystem_pthread.dylib`_pthread_start + 168
    frame #14: 0x00007fff95d29351 libsystem_pthread.dylib`thread_start + 13

  thread #5: tid = 0x1ee595, 0x00007fff984d1db6 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #0: 0x00007fff984d1db6 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff95d2c728 libsystem_pthread.dylib`_pthread_cond_wait + 767
    frame #2: 0x000000010d68b162 dart`dart::Monitor::WaitMicros(this=<unavailable>, micros=<unavailable>) + 162 at os_thread_macos.cc:379
    frame #3: 0x000000010d5d4dda dart`dart::ShutdownIsolate(unsigned long) [inlined] dart::MonitorLocker::Wait(millis=0) + 74 at lockers.h:169
    frame #4: 0x000000010d5d4dd2 dart`dart::ShutdownIsolate(unsigned long) [inlined] dart::Isolate::WaitForOutstandingSpawns(this=<unavailable>) + 29 at isolate.cc:2467
    frame #5: 0x000000010d5d4db5 dart`dart::ShutdownIsolate(parameter=<unavailable>) + 37 at isolate.cc:1462
    frame #6: 0x000000010d7723c6 dart`dart::ThreadPool::Worker::Loop(this=0x00007fc79d207110) + 54 at thread_pool.cc:407
    frame #7: 0x000000010d77228c dart`dart::ThreadPool::Worker::Main(args=140495311368464) + 108 at thread_pool.cc:464
    frame #8: 0x000000010d68a6c7 dart`dart::ThreadStart(data_ptr=<unavailable>) + 71 at os_thread_macos.cc:97
    frame #9: 0x00007fff95d2b99d libsystem_pthread.dylib`_pthread_body + 131
    frame #10: 0x00007fff95d2b91a libsystem_pthread.dylib`_pthread_start + 168
    frame #11: 0x00007fff95d29351 libsystem_pthread.dylib`thread_start + 13

  thread #6: tid = 0x1ee5a5, 0x00007fff984d1db6 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #0: 0x00007fff984d1db6 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff95d2c728 libsystem_pthread.dylib`_pthread_cond_wait + 767
    frame #2: 0x000000010d68b162 dart`dart::Monitor::WaitMicros(this=<unavailable>, micros=<unavailable>) + 162 at os_thread_macos.cc:379
    frame #3: 0x000000010d5d4dda dart`dart::ShutdownIsolate(unsigned long) [inlined] dart::MonitorLocker::Wait(millis=0) + 74 at lockers.h:169
    frame #4: 0x000000010d5d4dd2 dart`dart::ShutdownIsolate(unsigned long) [inlined] dart::Isolate::WaitForOutstandingSpawns(this=<unavailable>) + 29 at isolate.cc:2467
    frame #5: 0x000000010d5d4db5 dart`dart::ShutdownIsolate(parameter=<unavailable>) + 37 at isolate.cc:1462
    frame #6: 0x000000010d7723c6 dart`dart::ThreadPool::Worker::Loop(this=0x00007fc79951ae80) + 54 at thread_pool.cc:407
    frame #7: 0x000000010d77228c dart`dart::ThreadPool::Worker::Main(args=140495247486592) + 108 at thread_pool.cc:464
    frame #8: 0x000000010d68a6c7 dart`dart::ThreadStart(data_ptr=<unavailable>) + 71 at os_thread_macos.cc:97
    frame #9: 0x00007fff95d2b99d libsystem_pthread.dylib`_pthread_body + 131
    frame #10: 0x00007fff95d2b91a libsystem_pthread.dylib`_pthread_start + 168
    frame #11: 0x00007fff95d29351 libsystem_pthread.dylib`thread_start + 13

fsc8000 added a commit that referenced this issue Jun 10, 2016
@fsc8000
Fix dead lock in isolate shutdown.
bbe812f 
The service isolate is shutdown after the application isolates, so that any blocking i/o requests by pending isolate spawn tasks can be handled.

BUG=#26684
R=zra@google.com

Review URL: https://codereview.chromium.org/2052343002 .
@fsc8000 fsc8000 closed this as completed Jun 10, 2016
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