Trying to understand crash pattern
Trying to understand crash pattern
- Subject: Trying to understand crash pattern
- From: Peter Sichel <email@hidden>
- Date: Tue, 19 Jul 2011 15:45:25 -0400
My application uses CAPlayThrough to play audio from a Bluetooth phone (SCO driver) to selected audio devices (speaker and microphone). I'm seeing a few crash reports from the field that follow a consistent pattern and wonder if anyone recognizes what is going on.
My first guess is some HALProperty is being set and when it calls through to the Bluetoth SCO driver it crashes. There's not a single frame that is easily traced to code in my own application.
Thanks for any insight.
- Peter Sichel
Sustainable Softworks
Thread 0:: Dispatch queue: com.apple.main-thread
0 libobjc.A.dylib 0x00007fff8f5c4e96 objc_msgSend + 22
1 com.apple.Bluetooth 0x00007fff92234a11 IOBluetoothSCOAudioDeviceChanged + 1021
2 com.apple.audio.CoreAudio 0x00007fff94de7c24 _ZL31HALPropertyListener_Call_HelperiPvS_jjPK26AudioObjectPropertyAddress + 154
3 com.apple.audio.CoreAudio 0x00007fff94e09e1a __Call_block_invoke_3 + 39
4 libdispatch.dylib 0x00007fff8eb3b90a _dispatch_call_block_and_release + 18
5 libdispatch.dylib 0x00007fff8eb3d77a _dispatch_main_queue_callback_4CF + 308
6 com.apple.CoreFoundation 0x00007fff981c6c0c __CFRunLoopRun + 1724
7 com.apple.CoreFoundation 0x00007fff981c6216 CFRunLoopRunSpecific + 230
8 com.apple.HIToolbox 0x00007fff913084ff RunCurrentEventLoopInMode + 277
9 com.apple.HIToolbox 0x00007fff9130fc21 ReceiveNextEventCommon + 355
10 com.apple.HIToolbox 0x00007fff9130faae BlockUntilNextEventMatchingListInMode + 62
11 com.apple.AppKit 0x00007fff95b4b191 _DPSNextEvent + 659
12 com.apple.AppKit 0x00007fff95b4aa95 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 135
13 com.apple.AppKit 0x00007fff95b473d6 -[NSApplication run] + 463
14 com.apple.AppKit 0x00007fff95dc552a NSApplicationMain + 867
15 com.sustworks.Phone_Amego 0x000000010001bdda main + 262
16 com.sustworks.Phone_Amego 0x0000000100002100 start + 52
Thread 1 Crashed:: Dispatch queue: com.apple.libdispatch-manager
0 libsystem_kernel.dylib 0x00007fff90ba07e6 kevent + 10
1 libdispatch.dylib 0x00007fff8eb3d60e _dispatch_mgr_invoke + 923
2 libdispatch.dylib 0x00007fff8eb3c19e _dispatch_mgr_thread + 54
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