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Re: probably useless XFS crash report

To: linux-xfs@xxxxxxxxxxx
Subject: Re: probably useless XFS crash report
From: Derek Glidden <dglidden@xxxxxxxxxxxxxxx>
Date: Fri, 16 Jul 2004 01:04:54 -0400
In-reply-to: <20040716024129.GA12793@xxxxxxxxxxxxxxxxxxxxx>
References: <17773B6C-D6CC-11D8-8956-000A95DBAEDE@xxxxxxxxxxxxxxx> <20040716024129.GA12793@xxxxxxxxxxxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx

On Jul 15, 2004, at 10:41 PM, Chris Wedgwood wrote:

On Thu, Jul 15, 2004 at 10:01:46PM -0400, Derek Glidden wrote:

Gentoo (yeah, yeah.  I built the kernel myself anyway) 2.4.26 kernel
on an older Dual-Celeron with IDE.

Heh.  There's quite a few 'variables' there...

True. I wanted to see if it was at all useful before flooding the list with details. If you do want to know more, please tell me.

What were you doing when it crashed?  I take it there is nothing in
the kernel logs before this?

I was crashing the machine.  :)

I'm playing with "Xen" virtualization and a VM panicked and caused a reboot. I booted back to vanilla 2.4.26 kernel to check the VM filesystems. When I rebooted, it tried to mount the root partition and gave me that message/dump. It didn't actually crash or panic the whole system at that point, it just couldn't perform the automatic repair and refused to remount the root fs r/w. After getting the crash info from dmesg, I rebooted again, this time to 2.6.7, which did its "repair" and mount just fine.

Any idea if you got something like "SBTREE ERROR" before that?

I only barely caught the dump as it scrolled by during boot, so not really. "dmesg" didn't show anything other than the dump data and the usual kernel boot messages.

This occured during mount of the rootfs?  You said there is only one
fs so I wonder how you got the oops if that is the case?

It still mounted the root volume, just r/o. Then I did "dmesg > /boot/xfs_dump". /boot is on a different partition, but it's the only other partition. I just don't have /usr, /var, etc on separate partitions in this case. At least I didn't have to write it down by hand as at times in the past...

I probably would boot of CD/whatever and run xfs_repair if I were
you.

Yeah. This isn't an especially important machine, so I'm in no great hurry.

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