[alsa-devel] crash/reboot with rawmidi on ice1712 dual opteron

Takashi Iwai tiwai at suse.de
Tue Apr 17 12:33:35 CEST 2007

At Fri, 13 Apr 2007 21:16:55 +0200,
Florian wrote:
> Hi,
> on one particular machine, an IBM workstation (Intellistation A Pro
> with dual opteron 250, 4GB RAM), opening a rawmidi input port on an
> M-Audio 2496 card will cause an immediate reboot of the machine.
> I've tried with different SMP kernels and different ALSA versions
> (including 1.0.14rc3), but always the same. Syslog does not show
> anything.
> Using a USB MIDI interface works fine. Also, MIDI input on a similar
> workstation (Intellistation Z Pro, dual xeon, 1GB RAM) with M-Audio
> 2496 works without problems.
> Any ideas?

Hm, this sounds like a problem of ice1712 driver, not the rawmidi core
side.  Though, the symptom is a bit puzzling; most of mpu401 problems
is the lock-up rather than an immediate reboot.

Or, do you set up the machine to do automatic reboot at a kernel


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