[Webkit-unassigned] [Bug 222531] New: random crash in JSC::SlotVisitor::drain

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=222531

            Bug ID: 222531
           Summary: random crash in JSC::SlotVisitor::drain
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com

GTK-Linux-64-bit-Release-Tests is observing random crash in JSC::SlotVisitor::drain

r273226 seems the oldest build job showing the crash.
https://build.webkit.org/results/GTK-Linux-64-bit-Release-Tests/r273226%20(257)/results.html

#0  0x00007fc273a27d7f in JSC::SlotVisitor::drain(WTF::MonotonicTime) () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#1  0x00007fc273a285f4 in JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode, WTF::MonotonicTime) () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#2  0x00007fc2739f7d9a in WTF::SharedTaskFunctor<void (), JSC::Heap::runBeginPhase(JSC::GCConductor)::{lambda()#2}>::run() () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#3  0x00007fc2742e0a1f in WTF::ParallelHelperClient::runTask(WTF::RefPtr<WTF::SharedTask<void ()>, WTF::RawPtrTraits<WTF::SharedTask<void ()> >, WTF::DefaultRefDerefTraits<WTF::SharedTask<void ()> > > const&) () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#4  0x00007fc2742e1931 in WTF::ParallelHelperPool::Thread::work() () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#5  0x00007fc2742cd20d in WTF::Detail::CallableWrapper<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::{lambda()#1}, void>::call() () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#6  0x00007fc2742e79c9 in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#7  0x00007fc27434d4c9 in WTF::wtfThreadEntryPoint(void*) () at /app/webkit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#8  0x00007fc2708864d2 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fc270376323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

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