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

[Daniel James]

Hi Takashi, hi Florian,

I found a similar MIDI crashing bug on a dual Opteron machine in 2005, 
even with only one processor installed, which I reported at the time on 
alsa-devel. The card was an M-Audio Audiophile 24/96, normally reliable.

I couldn't replicate this problem on an Asus single processor Opteron 
board, so I concluded it was a quirk of my dual socket Tyan S2875 
motherboard:

http://article.gmane.org/gmane.linux.alsa.devel/24682/
http://article.gmane.org/gmane.linux.alsa.devel/25323/

Last time I tested it, earlier this year I think, the bug was still 
there. I even flashed the BIOS of the Tyan board in case it was a BIOS 
bug, but it made no difference. I installed a 32-bit distro and that 
made no difference either.

Maybe there is something more generally wrong here, which only affects 
dual-processor AMD64 hardware. I can make the Tyan machine available 
over SSH if that helps, it has a fixed IP address.

Cheers!

Daniel