linux-kernel - Re: SATA problems

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Date:	Sat, 17 Feb 2007 07:49:51 -0500
From:	"Marcus Haebler" <haebler@...il.com>
To:	"Tejun Heo" <htejun@...il.com>,
	"Pablo Sebastian Greco" <lkml@...agreco.com.ar>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: SATA problems

I opened a bug report (228979) on bugzilla.redhat.com on this one because
I have the same issue under FC6 2.6.19-1.2895. Here is the link:

    https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=228979

Do you have any more updates on this problem? Is there a way I can help
by providing debug data?

Thanks,

Marcus

On 1/23/07, Tejun Heo <htejun@...il.com> wrote:
> 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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