128656 2014-02-11 22:17:13 -0800 REGRESSION: fast/workers/stress-js-execution.html crashes sometimes 2014-02-19 11:12:22 -0800 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Unspecified RESOLVED DUPLICATE 128745 InRadar, Regression P1 Normal --- 1 ap webkit-unassigned fpizlo ggaren mhahnenberg webkit-bug-importer oldest_to_newest 979774 0 ap 2014-02-11 22:17:13 -0800 fast/workers/stress-js-execution.html started to flakily crash yesterday. Not frequently enough for me to pinpoint the revision. http://webkit-test-results.appspot.com/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=fast%2Fworkers%2Fstress-js-execution.html Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 com.apple.JavaScriptCore 0x000000010831bd4a WTFCrash + 42 (Assertions.cpp:333) 1 com.apple.JavaScriptCore 0x0000000107c2126d JSC::SlotVisitor::unconditionallyAppend(JSC::JSCell*) + 77 (SlotVisitorInlines.h:123) 2 com.apple.JavaScriptCore 0x0000000107f7b2ad JSC::Heap::addToRememberedSet(JSC::JSCell const*) + 237 (Heap.cpp:788) 3 com.apple.JavaScriptCore 0x0000000107cdd638 JSC::CodeBlockSet::rememberCurrentlyExecutingCodeBlocks(JSC::Heap*) + 152 (CodeBlockSet.cpp:117) 4 com.apple.JavaScriptCore 0x0000000107f7b90e JSC::Heap::collect() + 1470 (Heap.cpp:929) 5 com.apple.JavaScriptCore 0x0000000107f6b294 JSC::DefaultGCActivityCallback::doWork() + 212 (GCActivityCallback.cpp:100) 6 com.apple.JavaScriptCore 0x0000000107f8c242 JSC::HeapTimer::timerDidFire(__CFRunLoopTimer*, void*) + 338 (HeapTimer.cpp:98) 7 com.apple.CoreFoundation 0x00007fff8e826724 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20 979775 1 webkit-bug-importer 2014-02-11 22:17:37 -0800 <rdar://problem/16045354> 979776 2 mhahnenberg 2014-02-11 22:21:44 -0800 Weird. A currently executing code block didn't mark its owner executable. That seems wrong. 982451 3 mhahnenberg 2014-02-19 11:12:22 -0800 Same symptom as the bug 128745, so duping. *** This bug has been marked as a duplicate of bug 128745 ***