linux-kernel - Re: libata EH running when switching VTs

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Date:	Sat, 22 Jan 2011 10:36:15 -0600
From:	Robert Hancock <hancockrwd@...il.com>
To:	Toralf Förster <toralf.foerster@....de>
CC:	linux-kernel@...r.kernel.org, ide <linux-ide@...r.kernel.org>
Subject: Re: libata EH running when switching VTs

(CCing linux-ide)

On 01/22/2011 09:25 AM, Toralf Förster wrote:
> Hello,
>
> Henrique de Moraes Holschuh wrote at 14:11:12
>>
>> I don't even know whom to refer you to.  Maybe ask in LKML directly?  Use
>> the subject "libata EH running when switching VTs".  If one of those VTs
>> are in X.org control, say that as well.
>
> I'm wondering why I get this in /var/log/messages w/ kernel 2.6.37 when I
> switch from VT7 (running xorg ) to VT12 (or 1 or 2 or another number) and
> back:
>
>
> 2011-01-22T16:20:53.854+01:00 n22 kernel: ata1: hard resetting link
> 2011-01-22T16:20:54.163+01:00 n22 kernel: ata1: SATA link up 1.5 Gbps (SStatus
> 113 SControl 300)
> 2011-01-22T16:20:54.164+01:00 n22 kernel: ata1.00: ACPI cmd
> ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
> 2011-01-22T16:20:54.164+01:00 n22 kernel: ata1.00: ACPI cmd
> f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
> 2011-01-22T16:20:54.165+01:00 n22 kernel: ata1.00: ACPI cmd
> ef/5f:00:00:00:00:a0 (SET FEATURES) succeeded
> 2011-01-22T16:20:54.165+01:00 n22 kernel: ata1.00: ACPI cmd
> ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
> 2011-01-22T16:20:54.169+01:00 n22 kernel: ata1.00: ACPI cmd
> ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
> 2011-01-22T16:20:54.169+01:00 n22 kernel: ata1.00: ACPI cmd
> f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
> 2011-01-22T16:20:54.169+01:00 n22 kernel: ata1.00: ACPI cmd
> ef/5f:00:00:00:00:a0 (SET FEATURES) succeeded
> 2011-01-22T16:20:54.169+01:00 n22 kernel: ata1.00: ACPI cmd
> ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
> 2011-01-22T16:20:54.170+01:00 n22 kernel: ata1.00: configured for UDMA/100
> 2011-01-22T16:20:54.171+01:00 n22 kernel: ata1: EH complete
>
>
> I'm running an almost stable Gentoo on a ThinkPad T400 with current kernel
> (2.6.37, earlier shows this behaviour too)

Is that the only output you're getting? Can you post the full dmesg log 
from bootup?
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