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Bug 579

Summary: mixer crashes on looping
Product: SDL_mixer Reporter: Rene Dudfield <renesd>
Component: miscAssignee: Ryan C. Gordon <icculus>
Status: RESOLVED WONTFIX QA Contact: Sam Lantinga <slouken>
Severity: critical    
Priority: P2    
Version: unspecified   
Hardware: PowerPC   
OS: Mac OS X 10.4 (Intel)   
URL: http://pygame.motherhamster.org/bugzilla/show_bug.cgi?id=5

Description Rene Dudfield 2008-05-02 16:25:02 UTC 
Looping midi crashes on OSX.


1   com.apple.audio.CoreAudio           0x91476d9a
IOA_Device::CallIOProcs(AudioTimeStamp const&, AudioTimeStamp const&,
AudioTimeStamp const&) + 274
2   com.apple.audio.CoreAudio           0x91476b21
HP_IOThread::PerformIO(AudioTimeStamp const&) + 1299
3   com.apple.audio.CoreAudio           0x91474f49 HP_IOThread::WorkLoop() +
953
4   com.apple.audio.CoreAudio           0x91474b8b
HP_IOThread::ThreadEntry(HP_IOThread*) + 17
5   com.apple.audio.CoreAudio           0x91469171 CAPThread::Entry(CAPThread*)
+ 93
6   libSystem.B.dylib                   0x90024227 _pthread_body + 84



Here's a test case which uses pygame here:
wget http://209.197.86.65/19841988/rock/beatles/ISawHerStandingThere.mid
wget http://rene.f0o.com/~rene/stuff/midi.py
python midi.py ISawHerStandingThere.mid
Comment 1 Rene Dudfield 2008-05-04 16:19:30 UTC 
Updated the OS to mac osx 10.4 intel.

Also updated the Severity to critical since it's a crash bug.
Comment 2 Sam Lantinga 2009-09-26 02:18:05 UTC 
Ryan, can you look at this?  Thanks!
Comment 3 Sam Lantinga 2009-10-03 02:05:43 UTC 
This might be fixed with the last checkin, which fixed memory corruption problems.

Can you retest with current subversion?

You'll probably need to edit configure.in to re-enable darwin native MIDI which doesn't build on Mac OS X 10.5+
Comment 4 Sam Lantinga 2009-10-10 23:50:18 UTC 
The Mac OS X midi support needs to be completely rewritten for CoreAudio, which will hopefully take care of this issue.