panic upon kldunload snd_ich (lor # 159)
pyunyh at gmail.com
Sun Sep 11 21:42:16 PDT 2005
On Mon, Sep 12, 2005 at 04:04:48AM +0000, Ben Kaduk wrote:
> Hi everyone,
> I see that this panic is caused by lor #159
> but I figured I'd report it to see if it will help anyone
> Booting to single user and issuing:
> # kldload snd_ich
> # kldunload snd_ich
> are sufficient to trigger the panic on my system. I know that Alexander
> Leidinger has recently committed some bits to current in the sound code, but
> it is unclear if it will fix my panic; I'm currently cvsup-ing and building
> world to find out.
> The machine in question is:
> bash-2.05b$ uname -a
> FreeBSD prolepsis.math.uiuc.edu <http://prolepsis.math.uiuc.edu>
> 7.0-CURRENT #9: Thu Aug 25 06:22:00 UTC 2005
> kaduk at prolepsis.math.uiuc.edu:/usr/obj/usr/src/sys/PROLEPSIS
> As shown below, I have a core to play with, so if this needs fixing, tell me
> what I can do to help.
I think the LOR you seen is not cause of panic. As you've got core, would
you please give us full back-trace with symbol information?
See http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-kld.html for more datils.
And make sure to rebuild sound driver module with debugging information too.
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