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From: Gene Heskett <gene.heskett@gmail.com>
Organization: Organization? very little
To: David Newall <davidn@davidnewall.com>,
       "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: I just got got another Oops
Date: Thu, 12 Mar 2009 13:28:51 -0400
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On Thursday 12 March 2009, David Newall wrote:
>Gene Heskett wrote:
>> Mar 12 01:15:01 coyote xinetd[2583]: START: amanda pid=8970
>> from=::ffff:192.168.71.3 Mar 12 01:16:21 coyote kernel: [10353.910914]
>> BUG: unable to handle kernel NULL pointer dereference at 00000006 Mar 12
>> 01:16:21 coyote kernel: [10353.910921] IP: [<c046520b>]
>> get_page_from_freelist+0x24b/0x4c0 Mar 12 01:16:21 coyote kernel:
>> [10353.910929] *pdpt = 0000000000b38001 *pde = 0000000000000000 Mar 12
>> 01:16:21 coyote kernel: [10353.910934] Oops: 0000 [#1] PREEMPT SMP
>
>I think there must be a zone at 0x0.  Try adding
>
>		if (!zone) goto try_next_zone;
>
>
>in mm/page_alloc.c, (near line 1469), before
>
>		if (NUMA_BUILD && zlc_active &&

This line is at #1417 in my mm/page_alloc.c, (in 2.6.29-rc7) but I have added 
it, and a rebuild is in progress.  I'll post again if I see it again.  The 
machine is still up, and functioning apparently only semi-normally ATM.  I 
don't know it its related, but setroubleshoot's daemon is also exiting 
frequently.  And can't be restarted with the 'service' utility.  Off to reboot 
next.

Thanks David.

-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
You're dead, Jim.
		-- McCoy, "Amok Time", stardate 3372.7

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