linux-kernel - Re: Possible EXT2 race

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Message-Id: <1197104274.6899.3.camel@perihelion>
Date:	Sat, 08 Dec 2007 03:57:54 -0500
From:	Jon Masters <jonathan@...masters.org>
To:	"linux-os (Dick Johnson)" <linux-os@...logic.com>
Cc:	Dave Jones <davej@...hat.com>,
	Linux kernel <linux-kernel@...r.kernel.org>
Subject: Re: Possible EXT2 race


On Fri, 2007-12-07 at 13:58 -0500, linux-os (Dick Johnson) wrote:
> On Fri, 7 Dec 2007, Dave Jones wrote:
> 
> > On Fri, Dec 07, 2007 at 08:15:42AM -0500, linux-os (Dick Johnson) wrote:
> >
> > > Dec  7 04:05:55 chaos kernel: sd 0:0:1:0: [sdb] Add. Sense: Peripheral device write fault
> >
> > This sounds more like a hardware problem.

> There was an attempt to write beyond the end of the device because
> everything in the file-system was getting trashed. I can read/write
> the 5 year-old SCSI physical drive with no errors from both within
> linux and through the Adaptec BIOS. This problem only occurs
> when I attempt to truncate a file that is being written by another
> task.

Well, that might be how you can reproduce it, but this is almost
certainly a hardware problem and not EXT2 at fault - the filesystem can
only do just so much once its data has been corrupted by an old disk.

Jon.


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