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From: Brad Campbell <brad@wasp.net.au>
To: William Knop <wknop@andrew.cmu.edu>
Cc: Neil Brown <neilb@cse.unsw.edu.au>,
	linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org,
	linux-ide@vger.kernel.org
Subject: Re: libata badness
Date: Tue, 05 Oct 2004 08:49:37 +0400	[thread overview]
Message-ID: <416227E1.8020306@wasp.net.au> (raw)
In-Reply-To: <Pine.LNX.4.60-041.0410042301510.22333@unix47.andrew.cmu.edu>

William Knop wrote:
> 
>> This code starts:
>>
>>   0:   8b 55 04                  mov    0x4(%ebp),%edx
>>   3:   83 c1 08                  add    $0x8,%ecx
>>
>> and as %ebp is 01000000, this oopses.
>> It looks very much like a single-bit memory error (as has already been
>> suggested as a possibility).
> 
> 
> Oh my. So, I ran memcheck again for a few hours, and it checked out 
> fine. Just in case, though, I bought a replacement stick of ram. Well, 
> the oopses went away, so it must have been the ram.

For future reference, I have had errors show up after 24-36 hours of memtest86. I usually find that 
if it passes 48 hours of testing then things are looking pretty reliable. A couple of hours is 
usually too small a sample to rely on.

Brad

  reply	other threads:[~2004-10-05  4:49 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-04 12:12 libata badness William Knop
2004-10-04 13:59 ` Jon Lewis
2004-10-04 15:50   ` William Knop
2004-10-04 16:06     ` Mark Lord
2004-10-04 16:24       ` William Knop
2004-10-04 16:30       ` Jeff Garzik
2004-10-04 16:09     ` Jon Lewis
2004-10-04 16:34       ` William Knop
2004-10-04 16:30 ` Jeff Garzik
2004-10-04 16:55   ` William Knop
2004-10-04 17:42   ` William Knop
2004-10-04 17:50     ` Jim Paris
2004-10-04 18:03       ` William Knop
2004-10-04 18:01     ` Jeff Garzik
2004-10-04 22:47 ` Neil Brown
2004-10-05  3:11   ` William Knop
2004-10-05  4:49     ` Brad Campbell [this message]
2004-10-05  5:27       ` Norman Schmidt

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