[Webkit-unassigned] [Bug 153777] New: Crash in WTF::HashTable ... remove()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=153777

            Bug ID: 153777
           Summary: Crash in WTF::HashTable ... remove()
    Classification: Unclassified
           Product: WebKit
           Version: Safari 9
          Hardware: Unspecified
                OS: iOS 8.4
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Template Framework
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: stefan at arentz.ca

Created attachment 270443
  --> https://bugs.webkit.org/attachment.cgi?id=270443&action=review
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)

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