linux-kernel - Re: SATA problems

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Message-ID: <45B6BC6D.8070301@gmail.com>
Date:	Wed, 24 Jan 2007 10:54:53 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Pablo Sebastian Greco <lkml@...agreco.com.ar>
CC:	linux-kernel@...r.kernel.org
Subject: Re: SATA problems

Pablo Sebastian Greco wrote:
> Well, it took me a few days,  but I think I'm ready to report back. One
> of the drives was failing, and it stopped after rewiring power supply so
> the last problem seems to be corrected.
> OTOH, your blacklist seems to be needed too, now I'm running FC6
> distribution kernel 2.6.19-1.2895.fc6 (2.6.19.2 + some patches by
> fedora) and setting
> echo 1 >/sys/block/sdX/device/queue_depth
> on all the SAMSUNG drives (sdb, sdc and sdd)
> The second I type
> echo 31 >/sys/block/sdX/device/queue_depth
> on any of the drives I get these messages
> 
> Jan 23 12:36:30 squid kernel: BUG: warning: (ap->ops->error_handler &&
> ata_tag_valid(ap->active_tag)) at
> drivers/ata/libata-core.c:4602/ata_qc_issue() (Not ta
> inted)

This is kernel bug that needs fixing.  I'll investigate.

-- 
tejun
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