158089 2016-05-25 14:09:42 -0700 Race condition calling back to an IDBOpenDBRequest during WorkerThread shutdown 2016-05-25 14:18:25 -0700 1 1 1 Unclassified WebKit WebCore Misc. WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED P2 Normal --- 149117 1 beidson beidson alecflett commit-queue jsbell oldest_to_newest 1196462 0 beidson 2016-05-25 14:09:42 -0700 REGRESSION (r201390) - Race condition calling back to an IDBOpenDBRequest during WorkerThread shutdown 1196466 1 beidson 2016-05-25 14:11:45 -0700 (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 1196472 2 279810 beidson 2016-05-25 14:15:19 -0700 Created attachment 279810 Patch v1 1196476 3 beidson 2016-05-25 14:18:19 -0700 http://trac.webkit.org/changeset/201402 279810 2016-05-25 14:15:19 -0700 2016-05-25 14:16:25 -0700 Patch v1 patch text/plain 1678 beidson ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZyBiL1NvdXJjZS9XZWJDb3JlL0No YW5nZUxvZwppbmRleCA5NmFmMTcyLi4yYzc4ZGJmIDEwMDY0NAotLS0gYS9Tb3VyY2UvV2ViQ29y ZS9DaGFuZ2VMb2cKKysrIGIvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCkBAIC0xLDUgKzEsMjAg QEAKIDIwMTYtMDUtMjUgIEJyYWR5IEVpZHNvbiAgPGJlaWRzb25AYXBwbGUuY29tPgogCisgICAg ICAgIFJhY2UgY29uZGl0aW9uIGNhbGxpbmcgYmFjayB0byBhbiBJREJPcGVuREJSZXF1ZXN0IGR1 cmluZyBXb3JrZXJUaHJlYWQgc2h1dGRvd24uCisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQu b3JnL3Nob3dfYnVnLmNnaT9pZD0xNTgwODkKKworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkg KE9PUFMhKS4KKworICAgICAgICBObyBuZXcgdGVzdHMgKE9ubHkgc2VlbiByYW5kb21seSB1bmRl ciBHdWFyZE1hbGxvYykuCisKKyAgICAgICAgQ3Jhc2ggd2FzIHNlZW4gb25jZSBydW5uaW5nIHVu ZGVyIEd1YXJkTWFsbG9jLiBUaGUgZXJyb3IgaXMgb2J2aW91cy4KKworICAgICAgICAqIE1vZHVs ZXMvaW5kZXhlZGRiL2NsaWVudC9JREJDb25uZWN0aW9uUHJveHkuY3BwOgorICAgICAgICAoV2Vi Q29yZTo6SURCQ2xpZW50OjpJREJDb25uZWN0aW9uUHJveHk6OmNvbXBsZXRlT3BlbkRCUmVxdWVz dCk6IERvbid0IGdldCBhIHJhdyBwb2ludGVyIG91dCBvZiB0aGUgbWFwLgorICAgICAgICAgIElu c3RlYWQgc3RvcmUgb2ZmIGFzIGEgUmVmUHRyLCBhcyB0aGUgbWFwIG1pZ2h0IGJlIGNsZWFyZWQg b3V0IGZyb20gdGhlIHdvcmtlciB0aHJlYWQuCisKKzIwMTYtMDUtMjUgIEJyYWR5IEVpZHNvbiAg PGJlaWRzb25AYXBwbGUuY29tPgorCiAgICAgICAgIE1vZGVybiBJREI6IElEQiBvYmplY3RzIGZy b20gYSB3b3JrZXIgdGhyZWFkIG1pZ2h0IGJlIGRlc3Ryb3llZCBvbiB0aGUgbWFpbiB0aHJlYWQu CiAgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0xNTgwMDQK IApkaWZmIC0tZ2l0IGEvU291cmNlL1dlYkNvcmUvTW9kdWxlcy9pbmRleGVkZGIvY2xpZW50L0lE QkNvbm5lY3Rpb25Qcm94eS5jcHAgYi9Tb3VyY2UvV2ViQ29yZS9Nb2R1bGVzL2luZGV4ZWRkYi9j bGllbnQvSURCQ29ubmVjdGlvblByb3h5LmNwcAppbmRleCA1ZWJiMjY4Li42NGVlOTMwIDEwMDY0 NAotLS0gYS9Tb3VyY2UvV2ViQ29yZS9Nb2R1bGVzL2luZGV4ZWRkYi9jbGllbnQvSURCQ29ubmVj dGlvblByb3h5LmNwcAorKysgYi9Tb3VyY2UvV2ViQ29yZS9Nb2R1bGVzL2luZGV4ZWRkYi9jbGll bnQvSURCQ29ubmVjdGlvblByb3h5LmNwcApAQCAtMTA0LDcgKzEwNCw3IEBAIHZvaWQgSURCQ29u bmVjdGlvblByb3h5Ojpjb21wbGV0ZU9wZW5EQlJlcXVlc3QoY29uc3QgSURCUmVzdWx0RGF0YSYg cmVzdWx0RGF0YSkKIHsKICAgICBBU1NFUlQoaXNNYWluVGhyZWFkKCkpOwogCi0gICAgSURCT3Bl bkRCUmVxdWVzdCogcmVxdWVzdDsKKyAgICBSZWZQdHI8SURCT3BlbkRCUmVxdWVzdD4gcmVxdWVz dDsKICAgICB7CiAgICAgICAgIExvY2tlcjxMb2NrPiBsb2NrZXIobV9vcGVuREJSZXF1ZXN0TWFw TG9jayk7CiAgICAgICAgIHJlcXVlc3QgPSBtX29wZW5EQlJlcXVlc3RNYXAuZ2V0KHJlc3VsdERh dGEucmVxdWVzdElkZW50aWZpZXIoKSk7Cg==