7.2-RELEASE panics with snd_ds1 loaded.

Ashish SHUKLA wahjava.ml at gmail.com
Tue Jun 9 11:17:06 UTC 2009

Hi Mel,

Thanks for responding.

In <200906081647.15069.mel.flynn+fbsd.questions at mailing.thruhere.net>, Mel Flynn wrote:


>Nothing points to the sound module specifically. The first trace is unusable 
>(frames missing) and the second trace panics in sleep, which maybe points to 
>the sound module and interrupts. Are you not able to panic the system without 
>that sound module loaded? It looks too random to blame one module, more 
>hardware, but it's possible the module exposes a bug elsewhere. From this 
>though, it is hard to tell.

Yes, I noticed myself, that there is no reason why to blame 'sound' module for 
it. But I noticed my box only panics when there is some activity going on with 
sound device, like at one time, it paniced when I was trying to record audio 
using gnome-sound-recorder, and another it paniced when I was playing audio 
using ogg123. And that it too, it didn't panic immediately after start of 
operation (playing/recording), but only after some time has elapsed. And the 
system doesn't panic without snd_ds1 loaded even after building ports (like 
openjdk6 and libxul) and using GNOME for 4 hours. BtW, I forgot to mention in 
last post, but I'm running the GENERIC kernel bundled with 7.2-RELEASE DVD.

I don't know how to resolve and whether this is some kind of memory issue or 
something else. I also experienced something similar panic situation[1] with 
8.0-CURRENT which no one else is able to reproduce except me, after which I 
installed 7.2-RELEASE. Any ideas how to trace this problem, it is discouraging 
me to continue using FreeBSD for my regular desktop use ?

[1] - http://lists.freebsd.org/pipermail/freebsd-gnome/2009-April/022048.html

Thanks in advance
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