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Date: Fri, 18 Jan 2008 14:06:00 +0530
From: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
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To: Andrew Morton <akpm@linux-foundation.org>
CC: linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
       Andy Whitcroft <apw@shadowen.org>,
       Balbir Singh <balbir@linux.vnet.ibm.com>
Subject: Re: 2.6.24-rc8-mm1 Kernel oops will running kernbench
References: <20080117023514.9df393cf.akpm@linux-foundation.org>
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Hi Andrew,

Following oops was seen while running kernbench on one of test machine
(power4+ box). I tried reproducing the oops but was unsuccessful. 
I will try to reproduce the oops with debug info compiled.


Oops: Kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=32 NUMA pSeries
Modules linked in:
NIP: 0000000000004570 LR: 000000000fc42dc0 CTR: 0000000000000000
REGS: c00000077b6bf8c0 TRAP: 0300   Not tainted  (2.6.24-rc8-mm1-autotest)
MSR: 8000000000001000 <ME>  CR: 28022422  XER: 00000000
DAR: c00000077b6bfce0, DSISR: 000000000a000000
TASK = c000000773164c40[19588] 'as' THREAD: c00000077b6bc000 CPU: 1
GPR00: 0000000000004000 c00000077b6bfb40 0000000000007346 000000000000d032 
GPR04: 000000000000043a 0000000000000000 000000000000000c 0000000000000004 
GPR08: 000000000fd278c8 0000000048022424 c00000077b6bfe30 0000998be2321500 
GPR12: 8000000000001030 c0000000005f6280 0000000010030000 0000000010030000 
GPR16: 0000000010030000 0000000010050000 000000001006aac0 0000000010053cd0 
GPR20: 0000000000000000 0000000000000fe0 0000000010050000 0000000010050000 
GPR24: 0000000000000ff8 0000000000000fe8 0000000000000062 000000000fd27490 
GPR28: 000000000fd274c8 0000000010099420 000000000fd25ff4 000000001009a400 
NIP [0000000000004570] 0x4570
LR [000000000fc42dc0] 0xfc42dc0
Call Trace:
[c00000077b6bfb40] [c00000077b292000] 0xc00000077b292000 (unreliable)
Instruction dump:
48000000 XXXXXXXX XXXXXXXX XXXXXXXX 41820008 XXXXXXXX XXXXXXXX XXXXXXXX 
48000010 XXXXXXXX XXXXXXXX XXXXXXXX f92101a0 XXXXXXXX XXXXXXXX XXXXXXXX 

-- 
Thanks & Regards,
Kamalesh Babulal,
Linux Technology Center,
IBM, ISTL.
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