[Webkit-unassigned] [Bug 127820] API tests on Windows fail after r162774 (Debug)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=127820


Emanuel Komínek <drake127 at planescape.cz> changed:

           What    |Removed                     |Added
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                 CC|                            |drake127 at planescape.cz




--- Comment #5 from Emanuel Komínek <drake127 at planescape.cz>  2014-03-19 15:45:22 PST ---
I am not related to WebKit but suffer from same bug in our software. Has somebody been able to reproduce it?

It is likely a bug in implementation of std::mutex by MS (both VS 2012 and VS 2013 runtime) but I got my hands only on minidumps which were inconclusive.

So far, we observed this crash only on 32-bit Windows and our failing function was RegisterWaitForSingleObject and call stack is as follows:

_CxxThrowException+0x57 [f:\dd\vctools\crt_bld\self_x86\crt\prebuild\eh\throw.cpp @ 152]
Concurrency::details::SchedulerBase::SchedulerBase+0x23b [f:\dd\vctools\crt_bld\self_x86\crt\src\schedulerbase.cpp @ 146]
Concurrency::details::ThreadScheduler::ThreadScheduler+0x18 [f:\dd\vctools\crt_bld\self_x86\crt\src\threadscheduler.cpp @ 26]
Concurrency::details::ThreadScheduler::Create+0x2d [f:\dd\vctools\crt_bld\self_x86\crt\src\threadscheduler.cpp @ 35]
Concurrency::details::SchedulerBase::CreateWithoutInitializing+0x18 [f:\dd\vctools\crt_bld\self_x86\crt\src\schedulerbase.cpp @ 276]
Concurrency::details::SchedulerBase::GetDefaultScheduler+0x5c [f:\dd\vctools\crt_bld\self_x86\crt\src\schedulerbase.cpp @ 650]
Concurrency::details::SchedulerBase::CreateContextFromDefaultScheduler+0x7 [f:\dd\vctools\crt_bld\self_x86\crt\src\schedulerbase.cpp @ 567]
Concurrency::details::LockQueueNode::LockQueueNode+0x27 [f:\dd\vctools\crt_bld\self_x86\crt\src\rtlocks.cpp @ 617]
Concurrency::critical_section::lock+0x13 [f:\dd\vctools\crt_bld\self_x86\crt\src\rtlocks.cpp @ 1022]
mtx_do_lock+0x74 [f:\dd\vctools\crt_bld\self_x86\crt\src\thr\mutex.c @ 65]
_Mtx_lock+0xd [f:\dd\vctools\crt_bld\self_x86\crt\src\thr\mutex.c @ 144]

The problem is, I never saw what was happening in the RegisterWaitForSingleObject call so I cannot say what exactly went wrong. :/

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