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>
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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
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