Audio Streaming in background crash the app
I am using DigitalDj's AudioStreamer project (https://github.com/DigitalDJ/AudioStreamer) to stream audio in the background in my application. Everything works fine when the app is in the foreground but sometimes it gets crashed in back ground. Here is a very strange crash log.
Incident Identifier: F6F6B97C-1943-460D-8A4E-5608B47E6989
CrashReporter Key: 3a88f20a9e18f468445bddc212b7aa673c6dc89b
Hardware Model: iPod4,1
Process: iMixtapes [1075]
Path: /var/mobile/Applications/7C64D2D8-0C63-4A73-8452-763209481693/iMixtapes.app/iMixtapes
Identifier: iMixtapes
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2011-02-18 13:24:15.849 +0530
OS Version: iPhone OS 4.2.1 (8C148)
Report Version: 104
Exception Type: 00000020
Exception Codes: 0x8badf00d
Highlighted Thread: 6
Application Specific Information:
iMixtapes[1075] has active assertions beyond permitted time:
{(
<SBProcessAssertion: 0x66ce420> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66f2970> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66c60b0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66b4970> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66c7850> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66e55a0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66c5e40> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66b47d0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66eaba0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66ebfe0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66f1da0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66afb90> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66b18b0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x275940> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66b1820> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x2c88a0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66b7b70> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66b7700> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66c6230> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66793a0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66ad010> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66c7820> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66b7d20> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66b7180> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66f2530> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66f2720> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66b72a0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66f21e0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66f2650> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66b73c0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66b7830> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x6691270> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66c6010> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66b1ac0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x2733f0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep ,
<SBProcessAssertion: 0x66e74e0> identifier: UIKitBackgroundCompletionTask process: iMixtapes[1075] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:1075 preventSuspend preventIdleSleep
)}
Elapsed total CPU time (seconds): 86.390 (user 41.340, system 45.050), 14% CPU
Elapsed application CPU time (seconds): 6.290, 1% CPU
Thread 0:
0 libSystem.B.dylib 0x31093268 mach_msg_trap + 20
1 libSystem.B.dylib 0x31095354 mach_msg + 44
2 CoreFoundation 0x30416648 __CFRunLoopServiceMachPort + 88
3 CoreFoundation 0x30415ed2 __CFRunLoopRun + 350
4 CoreFoundation 0x30415c80 CFRunLoopRunSpecific + 224
5 CoreFoundation 0x30415b88 CFRunLoopRunInMode + 52
6 GraphicsServices 0x31eec4a4 GSEventRunModal + 108
7 GraphicsServices 0x31eec550 GSEventRun + 56
8 UIKit 0x313cf322 -[UIApplication _run] + 406
9 UIKit 0x313cce8c UIApplicationMain + 664
10 iMixtapes 0x00002348 main (main.m:14)
11 iMixtapes 0x000022fc start + 32
Thread 1:
0 libSystem.B.dylib 0x310bf974 kevent + 24
1 libSystem.B.dylib 0x31169704 _dispatch_mgr_invoke + 88
2 libSystem.B.dylib 0x31169174 _dispatch_queue_invoke + 96
3 libSystem.B.dylib 0x31168b98 _dispatch_worker_thread2 + 120
4 libSystem.B.dylib 0x3110d24a _pthread_wqthread + 258
5 libSystem.B.dylib 0x31105970 start_wqthread + 0
Thread 2:
0 libSystem.B.dylib 0x31093268 mach_msg_trap + 20
1 libSystem.B.dylib 0x31095354 mach_msg + 44
2 CoreFoundation 0x30416648 __CFRunLoopServiceMachPort + 88
3 CoreFoundation 0x30415ed2 __CFRunLoopRun + 350
4 CoreFoundation 0x30415c80 CFRunLoopRunSpecific + 224
5 CoreFoundation 0x30415b88 CFRunLoopRunInMode + 52
6 WebCore 0x35b32124 RunWebThread(void*) + 332
7 libSystem.B.dylib 0x3110c886 _pthread_start + 242
8 libSystem.B.dylib 0x31101a88 thread_start + 0
Thread 3:
0 libSystem.B.dylib 0x31093268 mach_msg_trap + 20
1 libSystem.B.dylib 0x31095354 mach_msg + 44
2 CoreFoun开发者_Python百科dation 0x30416648 __CFRunLoopServiceMachPort + 88
3 CoreFoundation 0x30415ed2 __CFRunLoopRun + 350
4 CoreFoundation 0x30415c80 CFRunLoopRunSpecific + 224
5 CoreFoundation 0x30415b88 CFRunLoopRunInMode + 52
6 Foundation 0x302fb5f6 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 206
7 Foundation 0x302d9192 -[NSThread main] + 38
8 Foundation 0x302d2242 __NSThread__main__ + 966
9 libSystem.B.dylib 0x3110c886 _pthread_start + 242
10 libSystem.B.dylib 0x31101a88 thread_start + 0
Thread 4:
0 libSystem.B.dylib 0x3110b9f0 __semwait_signal + 24
1 libSystem.B.dylib 0x310c07ec _pthread_cond_wait + 748
2 libSystem.B.dylib 0x310c03d2 pthread_cond_wait + 26
3 CoreMedia 0x3290cb14 WaitOnCondition + 4
4 CoreMedia 0x3290ca5a FigSemaphoreWaitRelative + 66
5 MediaToolbox 0x32a8bc9c fpa_AsyncMovieControlThread + 48
6 CoreMedia 0x32928f76 figThreadMain + 166
7 libSystem.B.dylib 0x3110c886 _pthread_start + 242
8 libSystem.B.dylib 0x31101a88 thread_start + 0
Thread 5:
0 libSystem.B.dylib 0x310b768c select$DARWIN_EXTSN + 20
1 CoreFoundation 0x3044d662 __CFSocketManager + 582
2 libSystem.B.dylib 0x3110c886 _pthread_start + 242
3 libSystem.B.dylib 0x31101a88 thread_start + 0
Thread 6:
0 libSystem.B.dylib 0x3110b9f0 __semwait_signal + 24
1 libSystem.B.dylib 0x310c07ec _pthread_cond_wait + 748
2 libSystem.B.dylib 0x310c03d2 pthread_cond_wait + 26
3 iMixtapes 0x000946d8 -[AudioStreamer enqueueBuffer] (AudioStreamer.m:1885)
4 iMixtapes 0x00095514 -[AudioStreamer handleAudioPackets:numberBytes:numberPackets:packetDescriptions:] (AudioStreamer.m:2196)
5 iMixtapes 0x0008f4ce MyPacketsProc (AudioStreamer.m:151)
6 AudioToolbox 0x3281e376 AudioFileStreamWrapper::CallPacketsProc(unsigned long, unsigned long, void const*, AudioStreamPacketDescription*, bool) + 122
7 AudioToolbox 0x3283a87a MP3AudioStream::GeneratePackets(AudioFileStreamContinuation&) + 818
8 AudioToolbox 0x3281e5e4 AudioFileStreamWrapper::ParseBytes(unsigned long, void const*, unsigned long) + 180
9 AudioToolbox 0x3281de6c AudioFileStreamParseBytes + 132
10 iMixtapes 0x0009410e -[AudioStreamer handleReadFromStream:eventType:] (AudioStreamer.m:1754)
11 iMixtapes 0x0008f58e ASReadStreamCallBack (AudioStreamer.m:222)
12 CoreFoundation 0x3044ef6a _signalEventSync + 70
13 CoreFoundation 0x3044f842 _cfstream_solo_signalEventSync + 58
14 CoreFoundation 0x3044c7ee _CFStreamSignalEvent + 326
15 CoreFoundation 0x3044c6a0 CFReadStreamSignalEvent + 4
16 CFNetwork 0x32fe2a66 HTTPReadStream::streamEvent(unsigned long) + 94
17 CFNetwork 0x32fe2adc HTTPReadStream::_streamCB(__CFReadStream*, unsigned long, void*) + 24
18 CoreFoundation 0x3044ef6a _signalEventSync + 70
19 CoreFoundation 0x3044eefe _cfstream_shared_signalEventSync + 198
20 CoreFoundation 0x304447d6 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 6
21 CoreFoundation 0x304165b0 __CFRunLoopDoSources0 + 376
22 CoreFoundation 0x30415e54 __CFRunLoopRun + 224
23 CoreFoundation 0x30415c80 CFRunLoopRunSpecific + 224
24 CoreFoundation 0x30415b88 CFRunLoopRunInMode + 52
25 Foundation 0x302d28e4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 196
26 iMixtapes 0x00091000 -[AudioStreamer startInternal] (AudioStreamer.m:843)
27 Foundation 0x302d9192 -[NSThread main] + 38
28 Foundation 0x302d2242 __NSThread__main__ + 966
29 libSystem.B.dylib 0x3110c886 _pthread_start + 242
30 libSystem.B.dylib 0x31101a88 thread_start + 0
Thread 7:
0 libSystem.B.dylib 0x31093268 mach_msg_trap + 20
1 libSystem.B.dylib 0x31095354 mach_msg + 44
2 CoreFoundation 0x30416648 __CFRunLoopServiceMachPort + 88
3 CoreFoundation 0x30415ed2 __CFRunLoopRun + 350
4 CoreFoundation 0x30415c80 CFRunLoopRunSpecific + 224
5 CoreFoundation 0x30415b88 CFRunLoopRunInMode + 52
6 AudioToolbox 0x327a84ba GenericRunLoopThread::RunLoop() + 30
7 AudioToolbox 0x327bb306 TRunLoop<AQClient>::Entry(void*) + 90
8 AudioToolbox 0x327a81d2 CAPThread::Entry(CAPThread*) + 138
9 libSystem.B.dylib 0x3110c886 _pthread_start + 242
10 libSystem.B.dylib 0x31101a88 thread_start + 0
Unknown thread crashed with unknown flavor: 5, state_count: 1
Can anybody please help me to resolve this issue.
Thanks
your app is being terminated, while the secondary thread continues to work. you have to clean up and terminate cleanly when requested.
note: you can symbolicate you crashes, to evaluate the callstack more easily.
When you are creating the background task to play the audio if you are using
- beginBackgroundTaskWithExpirationHandler:
make sure you code to end the task when you get the invalid notification from OS.
If u fail to handle that it will create the crash you have mentioned above.
加载中,请稍侯......
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