NEW 153777
Crash in WTF::HashTable ... remove() 
https://bugs.webkit.org/show_bug.cgi?id=153777
Summary Crash in WTF::HashTable ... remove()
Stefan Arentz
Reported 2016-02-01 15:59:30 PST
Created attachment 270443 [details] Full crash log Incident Identifier: 7D33106A-1D0C-4C7F-B307-13158624AF6F CrashReporter Key: c8ffe2c1c066882b3bcce0002c28a1c59f447d42 Hardware Model: iPhone7,2 Process: Client [559] Path: /private/var/mobile/Containers/Bundle/Application/9DD11C81-85AF-43CA-8E39-96637BCD308F/Client.app/Client Identifier: org.mozilla.ios.Firefox Version: 1405 (1.4) Code Type: ARM-64 (Native) Parent Process: launchd [1] Date/Time: 2016-01-28 06:23:47.865 +0100 Launch Time: 2016-01-28 06:10:30.239 +0100 OS Version: iOS 8.4 (12H143) Report Version: 105 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Subtype: KERN_INVALID_ADDRESS at 0x7b0ed2e331ee0dd3 Triggered by Thread: 9 Thread 9 name: Thread 9 Crashed: 0 WebKit 0x000000018b1f0e90 WTF::HashTable<IPC::StringReference, WTF::KeyValuePair<IPC::StringReference, std::__1::pair<WTF::RefPtr<WorkQueue>, WTF::RefPtr<IPC::Connection::WorkQueueMessageReceiver> > >, WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<IPC::StringReference, std::__1::pair<WTF::RefPtr<WorkQueue>, WTF::RefPtr<IPC::Connection::WorkQueueMessageReceiver> > > >, IPC::StringReference::Hash, WTF::HashMap<IPC::StringReference, std::__1::pair<WTF::RefPtr<WorkQueue>, WTF::RefPtr<IPC::Connection::WorkQueueMessageReceiver> >, IPC::StringReference::Hash, WTF::HashTraits<IPC::StringReference>, WTF::HashTraits<std::__1::pair<WTF::RefPtr<WorkQueue>, WTF::RefPtr<IPC::Connection::WorkQueueMessageReceiver> > > >::KeyValuePairTraits, WTF::HashTraits<IPC::StringReference> >::remove(WTF::KeyValuePair<IPC::StringReference, std::__1::pair<WTF::RefPtr<WorkQueue>, WTF::RefPtr<IPC::Connection::WorkQueueMessageReceiver> > >*) + 72 (ThreadSafeRefCounted.h:112) 1 WebKit 0x000000018b1f0e2c WTF::HashMap<IPC::StringReference, std::__1::pair<WTF::RefPtr<WorkQueue>, WTF::RefPtr<IPC::Connection::WorkQueueMessageReceiver> >, IPC::StringReference::Hash, WTF::HashTraits<IPC::StringReference>, WTF::HashTraits<std::__1::pair<WTF::RefPtr<WorkQueue>, WTF::RefPtr<IPC::Connection::WorkQueueMessageReceiver> > > >::remove(IPC::StringReference const&) + 52 (HashTable.h:971) 2 WebKit 0x000000018b1f0e2c WTF::HashMap<IPC::StringReference, std::__1::pair<WTF::RefPtr<WorkQueue>, WTF::RefPtr<IPC::Connection::WorkQueueMessageReceiver> >, IPC::StringReference::Hash, WTF::HashTraits<IPC::StringReference>, WTF::HashTraits<std::__1::pair<WTF::RefPtr<WorkQueue>, WTF::RefPtr<IPC::Connection::WorkQueueMessageReceiver> > > >::remove(IPC::StringReference const&) + 52 (HashTable.h:971) 3 WebKit 0x000000018b3d8be4 ___ZN9WorkQueue8dispatchENSt3__18functionIFvvEEE_block_invoke + 28 (functional:1755) 4 libdispatch.dylib 0x0000000198085990 _dispatch_call_block_and_release + 20 (init.c:731) 5 libdispatch.dylib 0x0000000198085950 _dispatch_client_callout + 12 (object.m:489) 6 libdispatch.dylib 0x00000001980900a0 _dispatch_queue_drain + 1444 (inline_internal.h:954) 7 libdispatch.dylib 0x0000000198088a58 _dispatch_queue_invoke + 128 (queue.c:3566) 8 libdispatch.dylib 0x0000000198092314 _dispatch_root_queue_drain + 716 (inline_internal.h:934) 9 libdispatch.dylib 0x0000000198093c48 _dispatch_worker_thread3 + 104 (atomic_llsc.h:4869) 10 libsystem_pthread.dylib 0x0000000198265228 _pthread_wqthread + 812 (pthread.c:1941) 11 libsystem_pthread.dylib 0x0000000198264eec start_wqthread + 0 (pthread_asm.s:181)
Attachments
Full crash log (58.13 KB, text/plain)
2016-02-01 15:59 PST, Stefan Arentz 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Alexey Proskuryakov
Comment 1 2016-02-02 21:32:01 PST
Is this reproducible, or a random crash found in logs?
Stefan Arentz
Comment 2 2016-02-03 17:06:14 PST
Not reproducible. But it is a top crasher for Firefox for iOS. Not sure what triggers it, but it is significant enough to show up relatively high in our crash stats.
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