[Webkit-unassigned] [Bug 90957] [Qt] There are GC related crashes regularly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=90957





--- Comment #8 from Csaba Osztrogonac <ossy at webkit.org>  2012-07-11 06:33:41 PST ---
One more, but different backtrace for Dromaeo/jslib-event-jquery.html test:

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff72a1671 in isJSString (this=0x7fffeaec0cd8) at /home/oszi/WebKit/Source/JavaScriptCore/runtime/JSString.h:501
501         inline bool isJSString(JSValue v) { return v.isCell() && v.asCell()->classInfo() == &JSString::s_info; }
(gdb) bt
#0  0x00007ffff72a1671 in isJSString (this=0x7fffeaec0cd8) at /home/oszi/WebKit/Source/JavaScriptCore/runtime/JSString.h:501
#1  visitChildren (this=0x7fffeaec0cd8) at /home/oszi/WebKit/Source/JavaScriptCore/heap/MarkStack.cpp:351
#2  JSC::SlotVisitor::drain (this=0x7fffeaec0cd8) at /home/oszi/WebKit/Source/JavaScriptCore/heap/MarkStack.cpp:405
#3  0x00007ffff72a19e4 in JSC::SlotVisitor::drainFromShared (this=0x7fffeaec0cd8, sharedDrainMode=JSC::SlotVisitor::MasterDrain) at /home/oszi/WebKit/Source/JavaScriptCore/heap/MarkStack.cpp:498
#4  0x00007ffff729dd38 in JSC::Heap::markRoots (this=0x7fffeaec0050, fullGC=<value optimized out>) at /home/oszi/WebKit/Source/JavaScriptCore/heap/Heap.cpp:555
#5  0x00007ffff729df8b in JSC::Heap::collect (this=0x7fffeaec0050, sweepToggle=JSC::Heap::DoNotSweep) at /home/oszi/WebKit/Source/JavaScriptCore/heap/Heap.cpp:717
#6  0x00007ffff72a410c in JSC::MarkedAllocator::allocateSlowCase (this=0x7fffeaec0158) at /home/oszi/WebKit/Source/JavaScriptCore/heap/MarkedAllocator.cpp:75
#7  0x00007ffff72e84ba in JSC::MarkedAllocator::allocate (exec=<value optimized out>) at /home/oszi/WebKit/Source/JavaScriptCore/heap/MarkedAllocator.h:77
#8  JSC::MarkedSpace::allocateWithDestructor (exec=<value optimized out>) at /home/oszi/WebKit/Source/JavaScriptCore/heap/MarkedSpace.h:191
#9  JSC::Heap::allocateWithDestructor (exec=<value optimized out>) at /home/oszi/WebKit/Source/JavaScriptCore/heap/Heap.h:362
#10 allocateCell<JSC::JSFinalObject> (exec=<value optimized out>) at /home/oszi/WebKit/Source/JavaScriptCore/runtime/JSCell.h:340
#11 JSC::JSFinalObject::create (exec=<value optimized out>) at /home/oszi/WebKit/Source/JavaScriptCore/runtime/JSObject.h:439
#12 constructEmptyObject (exec=<value optimized out>) at /home/oszi/WebKit/Source/JavaScriptCore/runtime/JSObject.h:515
#13 constructEmptyObject (exec=<value optimized out>) at /home/oszi/WebKit/Source/JavaScriptCore/runtime/JSGlobalObject.h:431
#14 constructEmptyObject (exec=<value optimized out>) at /home/oszi/WebKit/Source/JavaScriptCore/runtime/JSGlobalObject.h:436
#15 operationNewObject (exec=<value optimized out>) at /home/oszi/WebKit/Source/JavaScriptCore/dfg/DFGOperations.cpp:305
#16 0x00007fffaaf8880d in ?? ()
#17 0x0000000000000000 in ?? ()

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