The test asserts almost every time. https://build.webkit.org/results/Apple%20Yosemite%20(Leaks)/r204078%20(7088)/inspector/memory/tracking-crash-log.txt Thread 27 Crashed:: WebCore: ResourceUsage 0 com.apple.JavaScriptCore 0x000000010a50ae97 WTFCrash + 39 1 com.apple.WebCore 0x00000001113ed565 WebCore::ResourceUsageThread::platformThreadBody(JSC::VM*, WebCore::ResourceUsageData&) + 1221 2 com.apple.WebCore 0x00000001113e7695 WebCore::ResourceUsageThread::threadBody() + 101 3 com.apple.WebCore 0x00000001113e7625 WebCore::ResourceUsageThread::threadCallback(void*) + 21 4 com.apple.JavaScriptCore 0x000000010a57dc49 WTF::createThread(void (*)(void*), void*, char const*)::$_0::operator()() const + 25 5 com.apple.JavaScriptCore 0x000000010a57dc1d void std::__1::__invoke_void_return_wrapper<void>::__call<WTF::createThread(void (*)(void*), void*, char const*)::$_0&>(WTF::createThread(void (*)(void*), void*, char const*)::$_0&&&) + 45 This has been going for a while (at least since July 15, which is the oldest stored history).
Perhaps because of this? // FIXME: Handle running with bmalloc disabled.
<rdar://problem/27689425>
Created attachment 286873 [details] Patch
Comment on attachment 286873 [details] Patch r=me
Comment on attachment 286873 [details] Patch Clearing flags on attachment: 286873 Committed r204917: <http://trac.webkit.org/changeset/204917>
All reviewed patches have been landed. Closing bug.