[Alsa-user] random system crashes when outputting midi using snd-mpu401

2008-02-01 Thread Phil Carter
I'm trying to get MIDI output (through the game port) to work, but my
system locks up randomly when playing MIDI files using aplaymidi.
Everything works fine for a few seconds to a few minutes, and then my
system freezes and even the magic sysrq keys don't do anything, so I
have to hit the reset button on my computer.

My BIOS tells me that MIDI is port 300h, IRQ 10, so I run
modprobe snd_mpu401 port=300h irq=10
to make MIDI work. My BIOS will let me change the port and IRQ,
although I haven't tried it because I don't expect it to make any
difference.

Any ideas on what I can do to fix this, or to figure out what's
causing it? I have ALSA 1.0.14 and ALSA lib 1.0.14a, with Slackware
12, kernel 2.6.21.5. I use the onboard sound card from my K7S5A
motherboard, which uses the intel8x0 driver.

Thanks.
Phil Carter


  

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Re: [Alsa-user] random system crashes when outputting midi using snd-mpu401

2008-02-01 Thread Clemens Ladisch
Phil Carter wrote:
 I'm trying to get MIDI output (through the game port) to work, but my
 system locks up randomly when playing MIDI files using aplaymidi.
 Everything works fine for a few seconds to a few minutes, and then my
 system freezes and even the magic sysrq keys don't do anything, so I
 have to hit the reset button on my computer.

 Any ideas on what I can do to fix this, or to figure out what's
 causing it? I have ALSA 1.0.14 and ALSA lib 1.0.14a, with Slackware
 12, kernel 2.6.21.5.

This may be cause by a bug that was fixed in 1.0.16rc1:
http://hg.alsa-project.org/alsa-kernel/rev/1fe79ca6c78e

Please try updating to newer ALSA drivers (or a newer kernel).


Regards,
Clemens

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