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Re: kernel panic "killing interrupt handler" and kernel BUG at sched.c:4

To: Linux-XFS Mailing List <linux-xfs@xxxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>
Subject: Re: kernel panic "killing interrupt handler" and kernel BUG at sched.c:468
From: Federico Sevilla III <jijo@xxxxxxxxxxx>
Date: Tue, 1 Oct 2002 00:29:28 +0800
In-reply-to: <20020930121323.GA7250@xxxxxxxxxxxxxxxxxxxx>
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Hi everyone,

On Mon, Sep 30, 2002 at 08:13:24PM +0800, Federico Sevilla III wrote:
> On our server that had been running for 55 days with this 2.4.19-xfs
> kernel (XFS CVS snapshot 20020809 patched with RML's preempt patches
> for 2.4.19-rc3 and sys-magic 20020314 from Randy Dunlap, built using
> GCC 3.1.1 running Debian GNU/Linux)

And then after approximately 1.5 hours on 2.4.19-xfs (XFS CVS snapshot
20020930 patched only with Randy Dunlap's sys-magic 20020314, built
using gcc 2.95.4 running Debian GNU/Linux).

> I hit a kernel panic in the process running the distributed-net
> client.

Now in the process running syslogd. Attached kernel-panic-3.out is the
oops.

> After copying the oops message, I attempted to sync the disks using
> the (Alt + SysRq + S) key combination and after the sync messages I
> hit a kernel BUG at sched.c:568.

I did this, as well, and hit a kernel BUG at sched.c:566. My sched.c is
now exactly the same as the one in the XFS tree (which I think is the
same as the one in vanilla 2.4.19). Oops is attached as
kernel-bug-2.out.

> Pointers as to what probably caused this are welcome. If this is a
> "new" issue I hope the decoded oops messages will be help. Thank you
> everyone for your time.

System has been up for two hours so far and is thankfully alive. I hope
someone can point me to what the probably cause of this problem is. I
did an xfs_check -- which is from the latest 2.3.1 package -- and all my
XFS partitions are okay. I will be looking for a memory scanning tool
shortly to make sure I don't suddenly have bad RAM, although the problem
doesn't seem to be that.

Thanks again to everyone for your time.

 --> Jijo

-- 
Federico Sevilla III   :  http://jijo.free.net.ph
Network Administrator  :  The Leather Collection, Inc.
GnuPG Key ID           :  0x93B746BE

Attachment: kernel-panic-3.out
Description: Text document

Attachment: kernel-bug-2.out
Description: Text document

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