From: Lukas Hejtmanek <xhejtman@ics.muni.cz>
To: Tejun Heo <tj@kernel.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Robert Hancock <hancockr@shaw.ca>,
linux-kernel@vger.kernel.org,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
linux-ide@vger.kernel.org
Subject: Re: Another libata error related to OCZ SSD
Date: Sun, 25 Jan 2009 12:08:39 +0100 [thread overview]
Message-ID: <20090125110839.GA4691@ics.muni.cz> (raw)
In-Reply-To: <497BB9BB.4040608@kernel.org>
On Sun, Jan 25, 2009 at 10:00:43AM +0900, Tejun Heo wrote:
>
> Does the following command make any difference?
>
> echo 0 > /sys/class/scsi_disk/h:c:i:l/manage_start_stop
>
> The h:c:i:l part needs to be adjusted to point to the OCZ disk. lscsi
> will show which value to use.
Well, the real problem seems to be in touching link power management policy
(it did not happen with ata_piix driver thus the driver seemed to be ok)
If I touch power management with theses commands:
echo max_performance > /sys/class/scsi_host/host0/link_power_management_policy
echo medium_power > /sys/class/scsi_host/host0/link_power_management_policy
the suspend fails.
I always restore max_performance policy before the suspend.
--
Lukáš Hejtmánek
prev parent reply other threads:[~2009-01-25 11:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090111174159.GC4250@ics.muni.cz>
2009-01-19 21:39 ` Another libata error related to OCZ SSD Rafael J. Wysocki
2009-01-25 1:00 ` Tejun Heo
2009-01-25 10:57 ` Lukas Hejtmanek
2009-01-25 11:08 ` Lukas Hejtmanek [this message]
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