[Webkit-unassigned] [Bug 165854] New: Crash in com.apple.WebKit: IPC::Connection::sendMessage(std::__1::unique_ptr<IPC::MachMessage, std::__1::default_delete<IPC::MachMessage> >) + 27

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=165854

            Bug ID: 165854
           Summary: Crash in com.apple.WebKit:
                    IPC::Connection::sendMessage(std::__1::unique_ptr<IPC:
                    :MachMessage,
                    std::__1::default_delete<IPC::MachMessage> >) + 27
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com

Created attachment 297096
  --> https://bugs.webkit.org/attachment.cgi?id=297096&action=review
Crash log

Intermittent crash seen during perf test IndexedDB/objectstore-get.html

https://build.webkit.org/builders/Apple%20Yosemite%20Release%20WK2%20%28Perf%29/builds/6861/steps/perf-test/logs/stdio

Thread 2 Crashed:: Dispatch queue: com.apple.IPC.ReceiveQueue
0   com.apple.WebKit                  0x00000001022b56db IPC::Connection::sendMessage(std::__1::unique_ptr<IPC::MachMessage, std::__1::default_delete<IPC::MachMessage> >) + 27
1   com.apple.WebKit                  0x00000001022b5a2a ___ZN3IPC10Connection20initializeSendSourceEv_block_invoke + 77
2   libdispatch.dylib                 0x00007fff911bfe73 _dispatch_client_callout + 8
3   libdispatch.dylib                 0x00007fff911cc4e6 _dispatch_source_latch_and_call + 721
4   libdispatch.dylib                 0x00007fff911c493b _dispatch_source_invoke + 412
5   libdispatch.dylib                 0x00007fff911c33bc _dispatch_queue_drain + 571
6   libdispatch.dylib                 0x00007fff911c3030 _dispatch_queue_invoke + 202
7   libdispatch.dylib                 0x00007fff911c2bef _dispatch_root_queue_drain + 463
8   libdispatch.dylib                 0x00007fff911c2a1c _dispatch_worker_thread3 + 91
9   libsystem_pthread.dylib           0x00007fff8de66a9d _pthread_wqthread + 729
10  libsystem_pthread.dylib           0x00007fff8de643dd start_wqthread + 13

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