thanks for the reply. Some more info: - system is RH Enterprise AS 4 update 4 - the soundcard is in a 64-bit PCI-X slot (so few soundcards fit at all) - pcm with ice1712 is working fine - I disabled /proc/sys/kernel/panic_on_oops, but it still rebooted the same way. Is there another way to prevent rebooting on panic or so? - by using printk with serial console, I could trace the reboot to occur at the very first outb() call in mpu401_uart.c:64 with data 0, addr 0x304C Is this likely to be a hardware incompatibility? On a 3rd machine with dual Xeon (same OS, same PCI slots, same soundcard), the computer freezes after successfully receiving a few MIDI bytes (between 4 and 30 bytes). Any hints where I can start debugging such a lock-up? Thanks, Florian On 4/17/2007 12:33 PM, Takashi Iwai wrote: > 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 > panic? > > > Takashi > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@xxxxxxxxxxxxxxxx > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel > > -- Florian Bomers bome.com ------------------------------------------------------- Music Software, Development Tools: http://www.bome.com Java Sound extensions, plugins: http://www.tritonus.org The Java Sound Resources: http://www.jsresources.org ------------------------------------------------------- Please quote this email in your reply. Thanks! _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
