NEW 232492
[ BigSur Debug wk2 arm64 EWS ] webrtc/video-receivers.html is a flaky crash 
https://bugs.webkit.org/show_bug.cgi?id=232492
Summary [ BigSur Debug wk2 arm64 EWS ] webrtc/video-receivers.html is a flaky crash
Eric Hutchison
Reported 2021-10-29 10:13:05 PDT
Created attachment 442831 [details] Crash Log webrtc/video-receivers.html is a flaky crash on BigSur Debug wk2 arm64 EWS-only. History: https://results.webkit.org/?suite=layout-tests&test=webrtc/video-receivers.html Build: https://ews-build.webkit.org/#/builders/60/builds/15664 Results: https://ews-build.s3-us-west-2.amazonaws.com/macOS-AppleSilicon-Big-Sur-Debug-WK2-Tests-EWS/r442804-15664/results.html Crash Log (attached): https://ews-build.s3-us-west-2.amazonaws.com/macOS-AppleSilicon-Big-Sur-Debug-WK2-Tests-EWS/r442268-15245/com.apple.WebKit.GPU.Development-32322-crash-log.txt Thread 52 Crashed:: Dispatch queue: vtencoder-callback-queue-0x2e0124c40 0 libsystem_pthread.dylib 0x00000001987e1d9c pthread_mutex_lock + 0 1 com.apple.VideoToolbox 0x00000001a3830858 VTEncoderSessionEmitEncodedFrame + 404 2 com.apple.VideoToolbox 0x00000001a38debb4 0x1a381d000 + 793524 3 libxpc.dylib 0x00000001985517d0 _xpc_connection_call_event_handler + 172 4 libxpc.dylib 0x000000019855032c _xpc_connection_mach_event + 968 5 libdispatch.dylib 0x0000000198637f8c _dispatch_client_callout4 + 20 6 libdispatch.dylib 0x0000000198653114 _dispatch_mach_msg_invoke + 476 7 libdispatch.dylib 0x000000019863f570 _dispatch_lane_serial_drain + 308 8 libdispatch.dylib 0x0000000198653e78 _dispatch_mach_invoke + 464 9 libdispatch.dylib 0x000000019863f570 _dispatch_lane_serial_drain + 308 10 libdispatch.dylib 0x00000001986402d8 _dispatch_lane_invoke + 456 11 libdispatch.dylib 0x0000000198649684 _dispatch_root_queue_drain + 388 12 libdispatch.dylib 0x000000019864941c _dispatch_worker_thread + 236 13 libsystem_pthread.dylib 0x00000001987e7878 _pthread_start + 320 14 libsystem_pthread.dylib 0x00000001987e25e0 thread_start + 8 As noted above, this test crash has not been seen on OpenSource.
Attachments
Crash Log (142.06 KB, text/plain)
2021-10-29 10:13 PDT, Eric Hutchison 		no flags
Details
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Radar WebKit Bug Importer
Comment 1 2021-10-29 10:13:34 PDT
<rdar://problem/84813043>
Eric Hutchison
Comment 2 2021-10-29 10:21:27 PDT
Updated test expectations at https://trac.webkit.org/changeset/285037/webkit
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