Date: Sat, 24 Jan 2004 14:06:18 -0500 From: Mathew Kanner <mat@cnd.mcgill.ca> To: Michael McGoldrick <michael@mcgoldrick.org> Cc: current@freebsd.org Subject: Re: Fatal trap 12 pcm / devfs related? Message-ID: <20040124190618.GN64193@cnd.mcgill.ca> In-Reply-To: <20040124133246.GA862@uriel.mcgoldrick.org> References: <20040124133246.GA862@uriel.mcgoldrick.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Jan 24, Michael McGoldrick wrote:
> (kgdb) l *0xc051be9a
> 0xc051be9a is in dsp_clone (/usr/src/sys/dev/sound/pcm/dsp.c:1096).
> 1091 if (unit == -1 || unit >= devclass_get_maxunit(pcm_devclass))
> 1092 return;
> 1093
> 1094 pcm_dev = devclass_get_softc(pcm_devclass, unit);
> 1095
> 1096 SLIST_FOREACH(pcm_chan, &pcm_dev->channels, link) {
> 1097
> 1098 switch(devtype) {
> 1099 case SND_DEV_DSP:
> 1100 pdev = pcm_chan->dsp_devt;
> (kgdb)
Hello Michael,
I'm not exactly sure why this is happening and I'm not really
in a place to do debugging, but could you try sticking a
if (pcm_dev == NULL)
return;
at line 1095 and try again.
Thanks,
--Mat
--
sig machine broken
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20040124190618.GN64193>