[Webkit-unassigned] [Bug 172794] Crash when calling getUserMedia on a machine with no audio output devices

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sun Jun 4 16:04:42 PDT 2017


https://bugs.webkit.org/show_bug.cgi?id=172794

--- Comment #2 from Jon Lee <jonlee at apple.com> ---
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.JavaScriptCore            0x0000000106228ed9 WTF::MediaTime::operator+(WTF::MediaTime const&) const + 505
1   com.apple.WebCore                   0x000000010219b38a WebCore::AudioSampleDataSource::pushSamplesInternal(AudioBufferList const&, WTF::MediaTime const&, unsigned long) + 266
2   com.apple.WebCore                   0x00000001021a0c78 WebCore::AudioTrackPrivateMediaStreamCocoa::audioSamplesAvailable(WTF::MediaTime const&, WebCore::PlatformAudioData const&, WebCore::AudioStreamDescription const&, unsigned long) + 920
3   com.apple.WebCore                   0x0000000102de0176 WebCore::RealtimeMediaSource::audioSamplesAvailable(WTF::MediaTime const&, WebCore::PlatformAudioData const&, WebCore::AudioStreamDescription const&, unsigned long) + 70
4   com.apple.WebCore                   0x0000000102d2a715 WebCore::MockRealtimeAudioSourceMac::emitSampleBuffers(unsigned int) + 117
5   com.apple.WebCore                   0x0000000102d2abd1 WebCore::MockRealtimeAudioSourceMac::render(double) + 769
6   com.apple.JavaScriptCore            0x0000000106232f93 WTF::RunLoop::TimerBase::timerFired(__CFRunLoopTimer*, void*) + 35
7   com.apple.CoreFoundation            0x00007fffce598de4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
8   com.apple.CoreFoundation            0x00007fffce598a73 __CFRunLoopDoTimer + 1075
9   com.apple.CoreFoundation            0x00007fffce5985ca __CFRunLoopDoTimers + 298
10  com.apple.CoreFoundation            0x00007fffce58ffa1 __CFRunLoopRun + 2081
11  com.apple.CoreFoundation            0x00007fffce58f524 CFRunLoopRunSpecific + 420
12  com.apple.HIToolbox                 0x00007fffcdaefebc RunCurrentEventLoopInMode + 240
13  com.apple.HIToolbox                 0x00007fffcdaefcf1 ReceiveNextEventCommon + 432
14  com.apple.HIToolbox                 0x00007fffcdaefb26 _BlockUntilNextEventMatchingListInModeWithFilter + 71
15  com.apple.AppKit                    0x00007fffcc08ae24 _DPSNextEvent + 1120
16  com.apple.AppKit                    0x00007fffcc80685e -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 2796
17  com.apple.AppKit                    0x00007fffcc07f7ab -[NSApplication run] + 926
18  com.apple.AppKit                    0x00007fffcc04a1de NSApplicationMain + 1237
19  libxpc.dylib                        0x00007fffe438f8c7 _xpc_objc_main + 775
20  libxpc.dylib                        0x00007fffe438e2e4 xpc_main + 494
21  com.apple.WebKit.WebContent         0x0000000100fce69a main + 490
22  libdyld.dylib                       0x00007fffe4136235 start + 1

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