Big and ugly bug in 5.1-release

Doug White dwhite at
Tue Jul 15 22:32:09 PDT 2003

On Wed, 16 Jul 2003, Harald Schmalzbauer wrote:

> I'm experimenting with 5.1-REL for some weeks and during that time I had
> some mysterious hangs which I didn't take serious because I modified
> /usr/src/sys/cam/scsi/scsi_da.c to support my CF-Card-Reader.
> But now I saw exactly the same problem on my brand new (and cosidered by
> hardware extremely different) fileserver.
> The machine freezes for about one minute and then reboots itself withut any
> error message.

Sounds like its panicking and making a crashdump. Do you have console
access? Can you perhaps compile with 'options DDB' and get on the console
when it dies?  If it worked right you should see the panic message and
have a db> prompt.

> It happens when I do a "/stand/sysinstall" or a "sysctl -a"

If this is an i386 machine, I'd begin to suspect bad memory.

Doug White                    |  FreeBSD: The Power to Serve
dwhite at          |

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