[ALSA - driver 0001888]: MIDI external output occasionally freezes the machine

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A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1888> 
======================================================================
Reported By:                pigeon
Assigned To:                
======================================================================
Project:                    ALSA - driver
Issue ID:                   1888
Category:                   PCI - ymfpci
Reproducibility:            random
Severity:                   block
Priority:                   normal
Status:                     new
Distribution:               Debian testing
Kernel Version:             2.6.14.4 SMP, self-built
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Date Submitted:             03-02-2006 09:59 CET
Last Modified:              07-04-2006 02:22 CEST
======================================================================
Summary:                    MIDI external output occasionally freezes the
machine
Description: 

Since I've upgraded my kernel from 2.4 to 2.6.14.4, I'm having random
machine freezes when using the external MIDI port on my ymf soundcard. It
can happen just by playing midi using "pmidi -p 64:0 <midi file>". It
freezes sometimes when I simply ctrl-c it. Rosegarden also suffers from
the same behavior while starting and/or stopping a playback.

My external MIDI is connected to a Yamaha digital piano.

I do not have this problem when I was using a 2.4 kernel, and a self built
alsa driver (possibly version 1.0.9).

The snd-ymfpci driver is loaded with the follow options:
mpu_port=1 fm_port=1 joystick_port=1

Thanks.

======================================================================

----------------------------------------------------------------------
 Raymond - 06-19-06 15:38 
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http://www.alsa-project.org/changes/v1-0-9--v1-0-10.txt


If you sure that midi still work on ALSA 1.0.9, you may need to find out
which patch cause the problem

http://hg-mirror.alsa-project.org/alsa-kernel?fl=25ac64e78c4c;file=pci/ymfpci/ymfpci_main.c;style=gitweb

----------------------------------------------------------------------
 Sir Boss - 07-04-06 02:22 
----------------------------------------------------------------------
I'm also having the same problem...also with a Yamaha keyboard.  The lockup
doesn't occur if the keyboard is off, even if its sound card is set to be
output.  Has anyone found a fix for this yet?

Issue History
Date Modified  Username       Field                    Change              
======================================================================
03-02-06 09:59 pigeon         New Issue                                    
03-02-06 09:59 pigeon         Distribution              => Debian testing  
03-02-06 09:59 pigeon         Kernel Version            => 2.6.14.4 SMP,
self-built
06-19-06 15:38 Raymond        Note Added: 0010314                          
07-04-06 02:22 Sir Boss       Note Added: 0010811                          
======================================================================



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