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Auhal: crash when exiting digital playback

    • Closed Issue created by David @dfuhrmann

    Occurs rarely:

    
Crashed Thread:  3

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000

Application Specific Information:
abort() called

Thread 3 Crashed:
0   libsystem_kernel.dylib        	0x00007fff94d5c212 __pthread_kill + 10
1   libsystem_c.dylib             	0x00007fff95d85b54 pthread_kill + 90
2   libsystem_c.dylib             	0x00007fff95dc9dce abort + 143
3   libvlccore.5.dylib            	0x00000001000f99f7 vlc_thread_fatal + 327
4   libvlccore.5.dylib            	0x00000001000f98a1 vlc_mutex_destroy + 97 (thread.c:252)
5   libauhal_plugin.dylib         	0x00000001027ecf7f AudioStreamChangeFormat + 927 (auhal.c:1830)
6   libauhal_plugin.dylib         	0x00000001027ec58d Stop + 397 (auhal.c:1033)
7   libvlccore.5.dylib            	0x00000001000c2249 aout_OutputDelete + 89 (output.c:455)
8   libvlccore.5.dylib            	0x00000001000be083 aout_DecDelete + 83 (dec.c:121)
9   libvlccore.5.dylib            	0x0000000100071f8e DeleteDecoder + 254 (decoder.c:2078)
10  libvlccore.5.dylib            	0x0000000100071bfe input_DecoderDelete + 302 (decoder.c:374)
11  libvlccore.5.dylib            	0x000000010007f56a EsDestroyDecoder + 58 (es_out.c:1581)
12  libvlccore.5.dylib            	0x000000010007ec25 EsUnselect + 437 (es_out.c:1694)
13  libvlccore.5.dylib            	0x000000010007be76 EsOutControlLocked + 1590 (es_out.c:2157)
14  libvlccore.5.dylib            	0x000000010007b072 EsOutControl + 66 (es_out.c:2682)
15  libvlccore.5.dylib            	0x0000000100088803 es_out_vaControl + 51 (vlc_es_out.h:126)
16  libvlccore.5.dylib            	0x0000000100086e08 es_out_Control + 360 (vlc_es_out.h:135)
17  libvlccore.5.dylib            	0x0000000100086a63 CmdExecuteControl + 195 (es_out_timeshift.c:1458)
18  libvlccore.5.dylib            	0x0000000100084fee ControlLocked + 302 (es_out_timeshift.c:620)
19  libvlccore.5.dylib            	0x0000000100084bdb Control + 75 (es_out_timeshift.c:718)
20  libvlccore.5.dylib            	0x000000010008d093 es_out_vaControl + 51 (vlc_es_out.h:126)
21  libvlccore.5.dylib            	0x000000010008d018 es_out_Control + 360 (vlc_es_out.h:135)
22  libvlccore.5.dylib            	0x000000010008cc14 es_out_SetMode + 36 (es_out.h:89)
23  libvlccore.5.dylib            	0x000000010008bbd9 End + 57 (input.c:1371)
24  libvlccore.5.dylib            	0x000000010008c1dc Run + 76 (input.c:530)
25  libsystem_c.dylib             	0x00007fff95d847a2 _pthread_start + 327
26  libsystem_c.dylib             	0x00007fff95d711e1 thread_start + 13
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    Activity

    • David added Component::Audio: macOS / iOS / tvOS / visionOS Severity::normal Type::bug Version::master git labels

      added Component::Audio: macOS / iOS / tvOS / visionOS Severity::normal Type::bug Version::master git labels

    • David changed milestone to %Bugs paradize

      changed milestone to %Bugs paradize

    • Rémi Denis-Courmont
      Rémi Denis-Courmont @Courmisch ·
      Maintainer

      Destroying a mutex right after unlocking it is very rarely correct and should always raise a mental alarm...

          /* Destroy the lock and condition */
    vlc_mutex_unlock(&w.lock);
    vlc_mutex_destroy(&w.lock);

      By definition, if the lock is useful, another thread may be waiting on it at the time of unlocking, and then destroying the mutex is undefined. (It can be correct in some specific cases, such as for thread-safe reference counting.)

      In this particular case, the crash boils to a known bug:

           * FIXME: failing isn't actually implemented yet. */
    • Jean-Baptiste Kempf
      Jean-Baptiste Kempf @jbk ·
      Owner

      See #9239 (closed)

    • Jean-Baptiste Kempf changed milestone to %2.2.0

      changed milestone to %2.2.0

    • David
      David @dfuhrmann ·
      Author Maintainer

      This can also lead to deadlocks on 10.9:

        thread [#13](https://code.videolan.org/videolan/vlc/-/issues/13): tid = 0x13e7, 0x00007fff85c90716 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame [#0](https://code.videolan.org/videolan/vlc/-/issues/0): 0x00007fff85c90716 libsystem_kernel.dylib`__psynch_cvwait + 10
    frame [#1](https://code.videolan.org/videolan/vlc/-/issues/1): 0x00007fff8c9f0c77 libsystem_pthread.dylib`_pthread_cond_wait + 787
    frame [#2](https://code.videolan.org/videolan/vlc/-/issues/2): 0x00007fff8442d234 CoreAudio`CAGuard::WaitFor(unsigned long long) + 124
    frame [#3](https://code.videolan.org/videolan/vlc/-/issues/3): 0x00007fff8440cf53 CoreAudio`HALObject::RemovePropertyListener(AudioObjectPropertyAddress const&, HALPropertyListener const&) + 433
    frame [#4](https://code.videolan.org/videolan/vlc/-/issues/4): 0x00007fff8440cc48 CoreAudio`AudioObjectRemovePropertyListener + 202
    frame [#5](https://code.videolan.org/videolan/vlc/-/issues/5): 0x00000001006d8a82 libauhal_plugin.dylib`AudioStreamChangeFormat + 706
    frame [#6](https://code.videolan.org/videolan/vlc/-/issues/6): 0x00000001006d7794 libauhal_plugin.dylib`Start + 3764
    frame [#7](https://code.videolan.org/videolan/vlc/-/issues/7): 0x0000000100078322 libvlccore.7.dylib`aout_OutputNew + 66
    frame [#8](https://code.videolan.org/videolan/vlc/-/issues/8): 0x000000010007581e libvlccore.7.dylib`aout_DecNew + 398
    frame [#9](https://code.videolan.org/videolan/vlc/-/issues/9): 0x000000010004dd63 libvlccore.7.dylib`aout_new_buffer + 483
    frame [#10](https://code.videolan.org/videolan/vlc/-/issues/10): 0x0000000107c3e861 liba52_plugin.dylib`DecodeBlock + 2913
    frame [#11](https://code.videolan.org/videolan/vlc/-/issues/11): 0x000000010004d5dd libvlccore.7.dylib`DecoderDecodeAudio + 45
    frame [#12](https://code.videolan.org/videolan/vlc/-/issues/12): 0x000000010004cb74 libvlccore.7.dylib`DecoderThread + 3140
    frame [#13](https://code.videolan.org/videolan/vlc/-/issues/13): 0x00007fff8c9ee899 libsystem_pthread.dylib`_pthread_body + 138
    frame [#14](https://code.videolan.org/videolan/vlc/-/issues/14): 0x00007fff8c9ee72a libsystem_pthread.dylib`_pthread_start + 137
    frame [#15](https://code.videolan.org/videolan/vlc/-/issues/15): 0x00007fff8c9f2fc9 libsystem_pthread.dylib`thread_start + 13

  thread [#15](https://code.videolan.org/videolan/vlc/-/issues/15): tid = 0x140a, 0x00007fff85c90746 libsystem_kernel.dylib`__psynch_mutexwait + 10, queue = 'com.apple.audio.CADispatchQueue.SerialQueue
    frame [#0](https://code.videolan.org/videolan/vlc/-/issues/0): 0x00007fff85c90746 libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame [#1](https://code.videolan.org/videolan/vlc/-/issues/1): 0x00007fff8c9f1779 libsystem_pthread.dylib`_pthread_mutex_lock + 372
    frame [#2](https://code.videolan.org/videolan/vlc/-/issues/2): 0x00000001006d8b7a libauhal_plugin.dylib`StreamListener + 42
    frame [#3](https://code.videolan.org/videolan/vlc/-/issues/3): 0x00007fff84401d60 CoreAudio`HALPropertyListener_Call_Helper(int, void*, void*, unsigned int, unsigned int, AudioObjectPropertyAddress const*) + 152
    frame [#4](https://code.videolan.org/videolan/vlc/-/issues/4): 0x00007fff84401bff CoreAudio`HALPropertyListener::Call(unsigned int, unsigned int, AudioObjectPropertyAddress const*) + 637
    frame [#5](https://code.videolan.org/videolan/vlc/-/issues/5): 0x00007fff843fa47d CoreAudio`HALObject::PropertiesChanged(unsigned int, AudioObjectPropertyAddress const*) + 789
    frame [#6](https://code.videolan.org/videolan/vlc/-/issues/6): 0x00007fff84406def CoreAudio`HALSystem::AudioObjectPropertiesChanged(AudioHardwarePlugInInterface**, unsigned int, unsigned int, AudioObjectPropertyAddress const*) + 173
    frame [#7](https://code.videolan.org/videolan/vlc/-/issues/7): 0x00007fff84406d06 CoreAudio`_SendPropertiesChanged(void*) + 38
    frame [#8](https://code.videolan.org/videolan/vlc/-/issues/8): 0x00007fff87ba72ad libdispatch.dylib`_dispatch_client_callout + 8
    frame [#9](https://code.videolan.org/videolan/vlc/-/issues/9): 0x00007fff87ba968f libdispatch.dylib`_dispatch_queue_drain + 451
    frame [#10](https://code.videolan.org/videolan/vlc/-/issues/10): 0x00007fff87baa9dd libdispatch.dylib`_dispatch_queue_invoke + 110
    frame [#11](https://code.videolan.org/videolan/vlc/-/issues/11): 0x00007fff87ba8fa3 libdispatch.dylib`_dispatch_root_queue_drain + 75
    frame [#12](https://code.videolan.org/videolan/vlc/-/issues/12): 0x00007fff87baa193 libdispatch.dylib`_dispatch_worker_thread2 + 40
    frame [#13](https://code.videolan.org/videolan/vlc/-/issues/13): 0x00007fff8c9efef8 libsystem_pthread.dylib`_pthread_wqthread + 314
    frame [#14](https://code.videolan.org/videolan/vlc/-/issues/14): 0x00007fff8c9f2fb9 libsystem_pthread.dylib`start_wqthread + 13
    • David assigned to @dfuhrmann and unassigned @fkuehne

      assigned to @dfuhrmann and unassigned @fkuehne

    • Migration Bot
      Migration Bot @MigrationBot ·

      commit 4f4b7984 Author: David Fuhrmann david.fuhrmann@googlemail.com Date: Sat Mar 22 14:26:06 2014 +0100

      auhal: implement failure for stream format change and fix possible deadlock and crash

close [#8962](https://code.videolan.org/videolan/vlc/-/issues/8962)

      Original author: david.fuhrmann@googlemail.com

    • Migration Bot added Status::fixed label

      added Status::fixed label

    • David closed

      closed

    • David mentioned in issue #9239 (closed)

      mentioned in issue #9239 (closed)

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