linux-kernel - Re: BUG: Bad page state errors during kernel make

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Date:	Sun, 15 Apr 2007 23:56:03 -0400
From:	Dave Jones <davej@...hat.com>
To:	Zach Carter <linux@...hcarter.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: BUG:  Bad page state errors during kernel make

On Sun, Apr 15, 2007 at 08:30:27PM -0700, Zach Carter wrote:

 > Console Messages:
 > Bad page state in process 'cc1'
 > page:c1ca88e8 flags:0x52000000 mapping:c1000000 mapcount:0 count:0
 > Trying to fix it up, but a reboot is needed
 > Backtrace:
 >   [<c015625d>] bad_page+0x5e/0x89
 >   [<c0156ab1>] get_page_from_freelist+0x1de/0x298
 >   [<c0156bd3>] __alloc_pages+0x68/0x2aa
 >   [<c016322a>] anon_vma_prepare+0x20/0xb8
 >   [<c0129647>] tasklet_action+0x4b/0xa4
 >   [<c015e336>] __handle_mm_fault+0x3b2/0x88f
 >   [<c0116dce>] smp_apic_timer_interrupt+0x6e/0x7a
 >   [<c01380d7>] hrtimer_run_queues+0x138/0x152
 >   [<c0315e4a>] do_page_fault+0x23f/0x53c
 >   [<c0315c0b>] do_page_fault+0x0/0x53c
 >   [<c031488c>] error_code+0x7c/0x84
 >   =======================
 > list_del corruption. prev->next should be c21a4628, but was e21a4628

'c' became 'e' in that last address. A single bit flipped.
Given you've had this for some time, this smells like a hardware problem.
memtest86+ will probably show up something.

	Dave

-- 
http://www.codemonkey.org.uk
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