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Re: SMP+PREEMPT causes NULL dereference in khelper on startup

To: linux-mips@linux-mips.org, David Daney <ddaney@avtrex.com>
Subject: Re: SMP+PREEMPT causes NULL dereference in khelper on startup
From: Dave Johnson <djohnson+linux-mips@sw.starentnetworks.com>
Date: Mon, 5 Mar 2007 13:18:23 -0500
In-reply-to: <45EC4D64.5050803@avtrex.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <17897.48239.366047.442797@zeus.sw.starentnetworks.com> <17900.19125.660006.553487@zeus.sw.starentnetworks.com> <45EC4D64.5050803@avtrex.com>
Sender: linux-mips-bounce@linux-mips.org
David Daney writes:
> Dave Johnson wrote:
> > I found the issue.  This appears to be a compiler bug in
> > __unhash_process().
> 
> Perhaps you could tell us the compiler/binutils versions you are using.

Very old:

sbtools-2.7.1 (a.k.a. '3.2.3 with SiByte modifications')

We've found other problems in sbtools-2.5.11 (a.k.a. '3.0.3 with
SiByte modifications') relating to incorrect structure offset
calculations, but this is the first problem we've found in 3.2.3.

I'll probably look into upgrading again...

-- 
Dave Johnson
Starent Networks


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