[Webkit-unassigned] [Bug 71522] JSC should be able to sample itself in a more flexible way than just sampling flags

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=71522





--- Comment #19 from Filip Pizlo <fpizlo at apple.com>  2011-11-06 16:35:58 PST ---
(In reply to comment #18)
> (In reply to comment #17)
> > (In reply to comment #16)
> > > Landed in http://trac.webkit.org/changeset/99374
> > 
> > this commit seems to be causing a ton of assertion failures in the GTK+ debug bot during JSC regression tests: http://build.webkit.org/builders/GTK%20Linux%2064-bit%20Debug/builds/27434/steps/jscore-test/logs/actual.html
> 
> Here is the stack trace, if it's useful: 
> 
> Program terminated with signal 11, Segmentation fault.
> #0  0x00002aae598553dd in WTF::ThreadIdentifierData::identifier () at ../../Source/JavaScriptCore/wtf/ThreadIdentifierDataPthreads.cpp:65
> 65        ASSERT(m_key != PTHREAD_KEYS_MAX);
> 
> Thread 1 (Thread 0x2aae5c66b720 (LWP 10183)):
> #0  0x00002aae598553dd in WTF::ThreadIdentifierData::identifier () at ../../Source/JavaScriptCore/wtf/ThreadIdentifierDataPthreads.cpp:65
> #1  0x00002aae59855e4f in WTF::currentThread () at ../../Source/JavaScriptCore/wtf/ThreadingPthreads.cpp:212
> #2  0x00002aae5983846f in WTF::initializeMainThread () at ../../Source/JavaScriptCore/wtf/MainThread.cpp:100
> #3  0x000000000040f5ea in main (argc=6, argv=0x7fff35896bb8) at ../../Source/JavaScriptCore/jsc.cpp:408

Well that's unfortunate. :-(  Tracking this here: https://bugs.webkit.org/show_bug.cgi?id=71643

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