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Re: File corruption

To: Ralf Baechle <ralf@uni-koblenz.de>
Subject: Re: File corruption
From: Ulf Carlsson <ulfc@thepuffingroup.com>
Date: Fri, 25 Jun 1999 15:31:08 +0200
Cc: linux@cthulhu.engr.sgi.com
In-reply-to: <19990625002853.D17220@uni-koblenz.de>; from Ralf Baechle on Fri, Jun 25, 1999 at 12:28:53AM +0200
Mail-followup-to: Ralf Baechle <ralf@uni-koblenz.de>, linux@cthulhu.engr.sgi.com
References: <19990622032859.B6955@thepuffingroup.com> <19990622152145.A1059@uni-koblenz.de> <19990623014923.A8953@thepuffingroup.com> <19990625002853.D17220@uni-koblenz.de>
Sender: owner-linux@cthulhu.engr.sgi.com
> > > And under which kernel version did this start to happen?
> > 
> > 2.2.1 I think.
> 
> Are you shure?  The problem Alan is tracking started to hit from 2.2.7 on.  If
> 2.2.1 already starts making these kind of troubles then we probably track two
> different problems.

Probably.  I have a new problem with the 2.3.8 kernel now as well:  Page->owner
becomes -1 at line 1218 in buffer.c, thus forcing an oops.  This happens when I
try to cat a couple of big files into a new file.  This is even reproduceable...

I get some error messages before the oops as well:

attempt to access beyond end of device
08:01: rw=0, want=122156967, limit=929559
attempt to access beyond end of device
08:01: rw=0, want=886680107, limit=929559

> > Unfortunately I don't have IRIX.  However, I have a 133 MHz R4600 CPU with
> > 512 k board cache.  I have two 1 Gb SCSI driver connected.
> 
> Is this a low-mem configuration?  The problem Alan is tracking apparently
> seems to hit low mem systems more often.

Not really, I have 128 Mb RAM, but no swap.

Regards,
Ulf

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