Date: Mon, 27 Mar 2000 23:31:51 -0700 From: "Kenneth D. Merry" <ken@kdm.org> To: Mikhail Teterin <mi@aldan.algebra.com> Cc: stable@FreeBSD.ORG Subject: Re: panic on a flaky SCSI CD Message-ID: <20000327233150.A2097@panzer.kdm.org> In-Reply-To: <200003280401.XAA12345@xxx.video-collage.com>; from mi@video-collage.com on Mon, Mar 27, 2000 at 11:01:26PM -0500 References: <200003280401.XAA12345@xxx.video-collage.com>
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On Mon, Mar 27, 2000 at 23:01:26 -0500, mi@video-collage.com wrote: > I have this flaky SCSI CD, which works sometimes :) > When it fails, I see something like the following > popping up: > > Creating DISK cd0 > (cd0:ncr1:0:6:0): got CAM status 0x4a > (cd0:ncr1:0:6:0): fatal error, failed to attach to device > (cd0:ncr1:0:6:0): lost device > (cd0:ncr1:0:6:0): removing device entry That is caused by a selection timeout. There's not a whole lot we can do about that. > Under 3.4, if I was to try to mount a CD in this drive, > when it was in the bad mood, I'd simply get an error. Now, > with 4.0 the thing panics :( That's not good. In order to find the problem, we'll need a little more information. Take a look at the handbook section on kernel debugging: http://www.freebsd.org/handbook/kerneldebug.html Configure your system to make a crash dump, and then get a stack trace from gdb. That should provide enough information to find the problem. Thanks, Ken -- Kenneth Merry ken@kdm.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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