linux-ext4 - Re: ext4: (2.6.34-rc4): This should not happen!! Data will be lost

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Message-ID: <20100416155221.GA57840@plapa.qlogic.org>
Date:	Fri, 16 Apr 2010 08:52:21 -0700
From:	Andrew Vasquez <andrew.vasquez@...gic.com>
To:	Eric Sandeen <sandeen@...hat.com>
Cc:	Andre Noll <maan@...temlinux.org>,
	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
	Linux Driver <Linux-Driver@...gic.com>,
	Thomas Helle <Helle@...bingen.mpg.de>
Subject: Re: ext4: (2.6.34-rc4): This should not happen!!  Data will be lost

On Fri, 16 Apr 2010, Eric Sandeen wrote:

> On 04/16/2010 10:30 AM, Andre Noll wrote:
> > On 10:02, Eric Sandeen wrote:
> > 
> >>> I'm seeing the following errors when writing to an ext4 file system:
> >>>
> >>> 	qla2xxx 0000:06:09.0: scsi(0:0:0): Abort command issued -- 1 fa6a73 2002.
> >>> 	end_request: I/O error, dev sda, sector 7812771880
> >>
> >> Sounds like a hardware failure
> > 
> > Yes, or a problem with the qla2xxx driver. However, it's a bit
> > surprising that the hardware survived the stress test for more than
> > one day and went south just at the moment the fs was completely filled.
> 
> Hm, that's true.
> 
> Well, the error was on sector 7812771880 of the device ...
> 
> can you reliably write directly to that sector w/o the filesystem in
> between?

The driver here is simply reporting that the a command's timeout value
had been exceeded and the mid-layer began error-recovery with a request
to 'abort' the command.  The abort-request completed successfully:

	qla2xxx 0000:06:09.0: scsi(0:0:0): Abort command issued -- 1 fa6a73 2002.

I can't explain why the storage did not complete the request in the
allotted time.

-- av
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