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inexplicable SIGABRT

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inexplicable SIGABRT

Subject: inexplicable SIGABRT
From: Michael Hanna <email@hidden>
Date: Tue, 7 Sep 2010 21:59:41 -0400

Hi, my AudioQueue code seems to be stabilizing but every once in a while I'll get an inexplicable crash like this one and I'm not sure if it's a side-effect of my code or something wrong with library code..

(gdb) bt

#0 0x00007fff80c973d6 in __kill ()

#1 0x00007fff80d37913 in __abort ()

#2 0x00007fff80d37981 in abort ()

#3 0x00007fff80d26625 in szone_error ()

#4 0x00007fff80c4dc8e in tiny_malloc_from_free_list ()

#5 0x00007fff80c4d03c in szone_malloc_should_clear ()

#6 0x00007fff80c4cf0a in malloc_zone_malloc ()

#7 0x00007fff80c4b208 in malloc ()

#8 0x00007fff81b7cd2d in __cxa_allocate_exception ()

#9 0x000000011813310a in ACBaseCodec::GetPropertyInfo ()

#10 0x00000001181cb2f2 in ACCodecDispatch<ACMP3Decoder> ()

#11 0x00007fff85a7c2d8 in AudioCodecGetPropertyInfo ()

#12 0x00007fff8174e000 in CodecConverter::CheckInitialize ()

#13 0x00007fff81750084 in CodecConverter::CodecConverter ()

#14 0x00007fff817533f2 in CodecDecoderFactory::BuildCodecConverterChain ()

#15 0x00007fff81751c0a in CodecConverterFactory::BuildConverterChain ()

#16 0x00007fff81720ffd in ConverterRegistry::CreateConverter ()

#17 0x00007fff8172011d in _AudioConverterNewInternal ()

#18 0x00007fff81781391 in AudioQueueObject::IONodeConnection::PrepareConversion ()

#19 0x00007fff81785605 in AudioQueueObject::EnqueueBuffer ()

#20 0x00007fff8179dba3 in AQServer_EnqueueBuffer ()

#21 0x00007fff817a0c92 in AudioQueueEnqueueBufferWithParameters ()

#22 0x00007fff817a0d5a in AudioQueueEnqueueBuffer ()

#23 0x000000010000319d in YKK_AudioQueueBufferCallback (inUserData=0x100144910, inAQ=0x1001824f0, inCompleteAQBuffer=0x118525540) at YKK_AudioQueueFilePlayer.m:59

#24 0x0000000100004660 in -[YKK_AudioQueueFilePlayer startQueue:] (self=0x100144910, _cmd=0x100008359, resume=0 '\000') at YKK_AudioQueueFilePlayer.m:218

#25 0x000000010000218e in -[YKK_ApplicationController startPlayQueueWithResume:] (self=0x100143d80, _cmd=0x1000081de, resume=0 '\000') at YKK_ApplicationController.m:115

#26 0x0000000100001c9a in -[YKK_ApplicationController playAction:] (self=0x100143d80, _cmd=0x10000855d, sender=0x100130cc0) at YKK_ApplicationController.m:73

#27 0x00007fff84682152 in -[NSApplication sendAction:to:from:] ()

#28 0x00007fff846820b1 in -[NSControl sendAction:to:] ()

#29 0x00007fff8470da0b in -[NSCell trackMouse:inRect:ofView:untilMouseUp:] ()

#30 0x00007fff8473e536 in -[NSButtonCell trackMouse:inRect:ofView:untilMouseUp:] ()

#31 0x00007fff8470c4b5 in -[NSControl mouseDown:] ()

#32 0x00007fff84626763 in -[NSWindow sendEvent:] ()

#33 0x00007fff8455bee2 in -[NSApplication sendEvent:] ()

#34 0x00007fff844f2922 in -[NSApplication run] ()

#35 0x00007fff844eb5f8 in NSApplicationMain ()

#36 0x0000000100001717 in main (argc=1, argv=0x7fff5fbff6e8) at main.m:13

This is the offending line:

OSStatus err = AudioQueueEnqueueBuffer(inAQ, inCompleteAQBuffer, (pktDesc ? nPackets : 0), pktDesc);

any suggestions on how to avoid this kind of thing? Is it my input data perhaps(an MP3 file)?

Michael

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