Date: Mon, 17 Nov 1997 00:47:41 -0800 (PST) From: Doug White <dwhite@gdi.uoregon.edu> To: Jason Wells <jcwells@u.washington.edu> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: umount: Fatal Trap 12: Message-ID: <Pine.BSF.3.96.971117004434.9641j-100000@gdi.uoregon.edu> In-Reply-To: <3.0.3.32.19971111013849.007b7b10@jcwells.deskmail.washington.edu>
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On Tue, 11 Nov 1997, Jason Wells wrote: > I use 2.2.2R, Pentium 100, 48MB ram, and IDE drives. > > Upon umounting either my CDROM or my floppy I receive > > Fatal Trap 12: page fault while in kernel mode > > First. How do I capture these panic strings to a file before the system is > rebooted? Is such a thing possible considering that the system has lost > control of it's sphincter? Or you're forgetting to `umount' devices before removing them? Or using the -f flag when you shouldn't? > I read something about dumping the core but reading a core dump sounds like > it is way beyond my ability. What advice have you about saving core dumps? A core dump is for a specific program that dies; you're thinking of a crashdump. > What is kernel mode? > > What is page fault? Take a course on Operating Systems if you get the opportunity. Very informative. Lots of the junk in the manpages and other system output actually start to make sense. :-) > To umount the drive I have used umount /dev/yada and umount /mnt_point for > the CDROM and the floppy with same result for all four combinations. Did mount register that the disk was dismounted? Was there any system log entries? > Am I doing something wrong at mount time? Am I doing something wrong at > umount time? Post the command(s) used and the full panic output (yes all the funny numbers) and we'll take a look at it. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major
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