[alsa-devel] Kernel panic with SB Live (snd_emu10k1) when sharing interrupts

John Paul Adrian Glaubitz glaubitz at physik.fu-berlin.de
Mon Oct 8 11:17:14 CEST 2012


I have a Creative SoundBlaster Live! PCI (PCI-IDs:
1102:0002 and 1102:7002) which I recently ran into trouble with.

I used the SB Live! to replace my SB128 PCI which ran fine in the 
configuration (ASUS P8B-C/4L, see attached output from dmesg and lspci). 
Once I swapped the sound cards, I booted up the machine and immediately 
ran into a kernel panic [1] which seems to indicate that there is a 
problem with interrupt sharing.

I there removed the Firewire card which was placed adjacent to the SB 
Live and the machine ran stable again.

I assume that the snd_emu10k1 driver is sometimes not handling shared 
interrupts properly, isn't it?

I wanted to report this as a bug in the ALSA bug tracker [2], but alas 
the tracker is currently down.

I'm attaching the output of dmesg [3] as well as lspci [4]. Will provide 
more information if requested.



 > [1] http://users.physik.fu-berlin.de/~glaubitz/emu10k1_panic.jpg
 > [2] https://bugtrack.alsa-project.org/alsa-bug/
 > [3] http://users.physik.fu-berlin.de/~glaubitz/dmesg_emu10k1.txt
 > [4] http://users.physik.fu-berlin.de/~glaubitz/lspci_emu10k1.txt

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