linux-kernel - Re: [PATCH 0/63] Basic scheduler support for automatic NUMA balancing V9

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Date:	Wed, 9 Oct 2013 18:28:01 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Mel Gorman <mgorman@...e.de>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Rik van Riel <riel@...hat.com>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Linux-MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/63] Basic scheduler support for automatic NUMA
 balancing V9


Hm, so I'm seeing boot crashes with the config attached:

 INIT: version 2.86 booting 
 BUG: unable to handle kernel BUG: unable to handle kernel paging 
 requestpaging request at eaf10f40 
  at eaf10f40 
 IP:IP: [<b103e0ef>] task_work_run+0x52/0x87 
  [<b103e0ef>] task_work_run+0x52/0x87 
 *pde = 3fbf9067 *pde = 3fbf9067 *pte = 3af10060 *pte = 3af10060  
 
 Oops: 0000 [#1] Oops: 0000 [#1] DEBUG_PAGEALLOCDEBUG_PAGEALLOC 
 
 CPU: 0 PID: 171 Comm: hostname Tainted: G        W    
 3.12.0-rc4-01668-gfd71a04-dirty #229484 
 CPU: 0 PID: 171 Comm: hostname Tainted: G        W    
 3.12.0-rc4-01668-gfd71a04-dirty #229484 
 task: eaf157a0 ti: eacf2000 task.ti: eacf2000 

Note that the config does not have NUMA_BALANCING enabled. With another 
config I also had a failed bootup due to the OOM killer kicking in. That 
didn't have NUMA_BALANCING enabled either.

Yet this all started today, after merging the NUMA patches.

Any ideas?

Thanks,

	Ingo

View attachment "config" of type "text/plain" (112298 bytes)