This bug was filed from the Socorro interface and is report bp-aead25db-f7f4-43b6-b11d-bd2452140731. ============================================================= I've seen this a couple of times since yesterday. See also bp-06ec7384-90ca-49ca-9308-0b2442140731.

(I'm on the 7/31 nightly.)

I hit this a few times as well, once in the debug build, and this was reported as the crashing thread: Thread 58 Crashed:: Dispatch queue: com.apple.audio.CADispatchQueue.SerialQueue 0 ??? 0x000000011dc6f2d0 0 + 4794544848 1 com.apple.audio.CoreAudio 0x00007fff90710d60 HALPropertyListener_Call_Helper(int, void*, void*, unsigned int, unsigned int, AudioObjectPropertyAddress const*) + 152 2 com.apple.audio.CoreAudio 0x00007fff90710bff HALPropertyListener::Call(unsigned int, unsigned int, AudioObjectPropertyAddress const*) + 637 3 com.apple.audio.CoreAudio 0x00007fff9070947d HALObject::PropertiesChanged(unsigned int, AudioObjectPropertyAddress const*) + 789 4 com.apple.audio.CoreAudio 0x00007fff907105da HALDefaultDevice::UpdateDefaultDevices(bool) + 220 5 com.apple.audio.CoreAudio 0x00007fff9071fb1d HALDeviceList::DeviceChangeListener_Helper(unsigned int, unsigned int, AudioObjectPropertyAddress const*, void*) + 225 6 com.apple.audio.CoreAudio 0x00007fff907365a1 ___ZN13HALDeviceList20DeviceChangeListenerEjjPK26AudioObjectPropertyAddressPv_block_invoke + 24 7 libdispatch.dylib 0x00007fff98a831bb _dispatch_call_block_and_release + 12 8 libdispatch.dylib 0x00007fff98a8028d _dispatch_client_callout + 8 9 libdispatch.dylib 0x00007fff98a82673 _dispatch_queue_drain + 451 10 libdispatch.dylib 0x00007fff98a839c1 _dispatch_queue_invoke + 110 11 libdispatch.dylib 0x00007fff98a81f87 _dispatch_root_queue_drain + 75 12 libdispatch.dylib 0x00007fff98a83177 _dispatch_worker_thread2 + 40 13 libsystem_pthread.dylib 0x00007fff93bc7ef8 _pthread_wqthread + 314 14 libsystem_pthread.dylib 0x00007fff93bcafb9 start_wqthread + 13

Not specific to Firefox? I did get: Sleep/Wake UUID: 6C87E06D-D7F3-477B-9D51-7A8C5A7433BA Crashed Thread: 58 Dispatch queue: com.apple.audio.CADispatchQueue.SerialQueue in my crash report. And then note the "Crash after sleeping" section here: http://forum.makemusic.com/default.aspx?f=6&m=425560

I wonder if this is the symbolicated stack trace for the crash?!

I've got a patch for this, sorry about that, I'll push it now.