From: Jeff Garzik <jgarzik@pobox.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Paul Jakma <paul@clubi.ie>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: libata: dma, io error messages
Date: Fri, 06 Aug 2004 11:40:52 -0400 [thread overview]
Message-ID: <4113A684.8050302@pobox.com> (raw)
In-Reply-To: <1091795565.16307.14.camel@localhost.localdomain>
Alan Cox wrote:
> On Gwe, 2004-08-06 at 11:29, Paul Jakma wrote:
>
>>scsi0: ERROR on channel 0, id 0, lun 0, CDB: Read (10) 00 02 05 d0 06 00 00 10 00
>>Current sda: sense key Medium Error
>
>
> Disk error
>
>
>>Additional sense: Unrecovered read error - auto reallocate failed
>
>
> Bad block, and sufficiently bad that it couldn't then recover the block
> and rewrite it. When a drive sees a marginal read (lot of forward error
> correction recovery needed) it will try and rewrite or move the block.
>
> In this case it couldn't read the block enough to move it.
Unfortunately, in libata all it means at this point is
(a) the error occurred on a read command, and
(b) we did not attempt to retry the command
So, a generic non-specific error you see on all errors.
libata does not (yet) retry cable errors, for example. Paul, don't
automatically assume the disk is bad, try swapping cables.
Jeff
next prev parent reply other threads:[~2004-08-06 15:57 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-06 10:29 libata: dma, io error messages Paul Jakma
2004-08-06 12:32 ` Alan Cox
2004-08-06 13:40 ` Paul Jakma
2004-08-06 13:49 ` Mark Lord
2004-08-06 14:04 ` Paul Jakma
2004-08-06 14:59 ` Mark Lord
2004-08-06 15:15 ` Paul Jakma
2004-08-06 15:41 ` Jeff Garzik
2004-08-06 15:40 ` Jeff Garzik [this message]
2004-08-06 16:47 ` Paul Jakma
2004-08-06 17:24 ` Paul Jakma
2004-08-09 4:48 ` Eric D. Mudama
2004-08-09 4:56 ` Joel Jaeggli
2004-08-17 0:48 ` Paul Jakma
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