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Re: [Xen-devel] x86_64 DOM0 SMP oops

from [Ryan Harper]

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To:	Chris Wright <chrisw@xxxxxxxx>
Subject:	Re: [Xen-devel] x86_64 DOM0 SMP oops
From:	Ryan Harper <ryanh@xxxxxxxxxx>
Date:	Mon, 22 Aug 2005 14:15:00 -0500
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* Chris Wright <chrisw@xxxxxxxx> [2005-08-22 14:13]:
> * Ryan Harper (ryanh@xxxxxxxxxx) wrote:
> > While working/testing the hotplug patch for x86_64, I encountered an
> > [1]oops.  When the system was idle or minor load, I didn't have any
> > problems, but as I kicked off an parallel build of the kernel, I hit the
> > oops.  
> > 
> > changeset:   6315:531ad4bde8f249c318588f41bdbb72d0b0e0ea9c
> > tag:         tip
> > parent:      6314:473af43ac65b1a872b058469d01acc6cfa21505d
> > parent:      6313:d8fd24b4308078f6d20aa8a306e540c5833ca5a2
> > user:        cl349@xxxxxxxxxxxxxxxxxxxx
> > date:        Mon Aug 22 05:21:18 2005
> > summary:     merge?
> > 
> > 1. 
> > Unable to handle kernel NULL pointer dereference at 000000000000001c RIP:
> > <ffffffff80112c1a>{retint_kernel+0}
> > PGD aae067 PUD aaf067 PMD 0
> > Oops: 0000 [1] PREEMPT SMP
> 
> Not surprising, w/ PREEMPT.  Is it stable w/out PREEMPT?

Really?  I thought CONFIG_PREEMPT was tested since it was on for x86_32
SMP.  I'll give that a shot and let you know.

-- 
Ryan Harper
Software Engineer; Linux Technology Center
IBM Corp., Austin, Tx
(512) 838-9253   T/L: 678-9253
ryanh@xxxxxxxxxx

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