RESOLVED FIXED 158089
Race condition calling back to an IDBOpenDBRequest during WorkerThread shutdown 
https://bugs.webkit.org/show_bug.cgi?id=158089
Summary Race condition calling back to an IDBOpenDBRequest during WorkerThread shutdown
Brady Eidson
Reported 2016-05-25 14:09:42 PDT
REGRESSION (r201390) - Race condition calling back to an IDBOpenDBRequest during WorkerThread shutdown
Attachments
Patch v1 (1.64 KB, patch)
2016-05-25 14:15 PDT, Brady Eidson 		achristensen: review+
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Brady Eidson
Comment 1 2016-05-25 14:11:45 PDT
(In reply to comment #0) > REGRESSION (r201390) - Race condition calling back to an IDBOpenDBRequest > during WorkerThread shutdown Never mind - not a regression fro 201390 as it was seen in 201387 Seen under GuardMalloc: Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Application Specific Information: CRASHING TEST: storage/indexeddb/pending-version-change-stuck-private.html This process is running with libgmalloc.dylib (GuardMalloc) which may have forced the crash due to a memory access error. abort() called Pure virtual function called! Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libsystem_kernel.dylib 0x00007fffd511febe __pthread_kill + 10 1 libsystem_pthread.dylib 0x00007fffd52089a7 pthread_kill + 90 2 libsystem_c.dylib 0x00007fffd50846f4 abort + 129 3 libc++abi.dylib 0x00007fffd3be434a abort_message + 266 4 libc++abi.dylib 0x00007fffd3c06f62 __cxa_pure_virtual + 18 5 com.apple.WebCore 0x00000001079b71fd void WebCore::ScriptExecutionContext::postCrossThreadTask<WebCore::IDBOpenDBRequest&, void (WebCore::IDBOpenDBRequest::*&)(WebCore::IDBResultData const&), WebCore::IDBResultData const&>(WebCore::IDBOpenDBRequest&&&, void (WebCore::IDBOpenDBRequest::*&&&)(WebCore::IDBResultData const&), WebCore::IDBResultData const&&&) + 205 6 com.apple.WebCore 0x00000001079b231b WebCore::IDBClient::IDBConnectionProxy::completeOpenDBRequest(WebCore::IDBResultData const&) + 171 7 com.apple.JavaScriptCore 0x0000000106865872 WTF::RunLoop::performWork() + 898 8 com.apple.JavaScriptCore 0x0000000106865a52 WTF::RunLoop::performWork(void*) + 34 9 com.apple.CoreFoundation 0x00007fffc0cbebe1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 10 com.apple.CoreFoundation 0x00007fffc0c9f0a7 __CFRunLoopDoSources0 + 423 11 com.apple.CoreFoundation 0x00007fffc0c9e616 __CFRunLoopRun + 934 12 com.apple.CoreFoundation 0x00007fffc0c9e00d CFRunLoopRunSpecific + 285 13 DumpRenderTree 0x0000000105d3b144 0x105d28000 + 78148 14 DumpRenderTree 0x0000000105d3a6d9 0x105d28000 + 75481 15 DumpRenderTree 0x0000000105d3bd99 0x105d28000 + 81305 16 libdyld.dylib 0x00007fffd4ff1285 start + 1
Brady Eidson
Comment 2 2016-05-25 14:15:19 PDT
Created attachment 279810 [details] Patch v1
Brady Eidson
Comment 3 2016-05-25 14:18:19 PDT
http://trac.webkit.org/changeset/201402
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