linux-kernel - Re: "blocked for more than 120 secs" --> a valid situation, how to prevent?

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Date:	Thu, 23 Sep 2010 19:51:48 -0500
From:	Stan Hoeppner <stan@...dwarefreak.com>
To:	Mark Lord <kernel@...savvy.com>
CC:	Linux Kernel <linux-kernel@...r.kernel.org>,
	IDE/ATA development list <linux-ide@...r.kernel.org>,
	linux-scsi <linux-scsi@...r.kernel.org>
Subject: Re: "blocked for more than 120 secs" --> a valid situation, how to
 prevent?

Mark Lord put forth on 9/23/2010 6:41 PM:
> What's the purpose of this stack dump,
> and how can it be prevented in this NORMAL situation??
> 
> The command was "hdparm --security-erase NULL /dev/sdb",
> which takes about 66 minutes to complete on this particular drive.
> 
> I don't see any obvious way for the task to mark itself
> as needing longer than 120 secs to complete the operation.

~$ man hdparm

ATA Security Feature Set

These switches are DANGEROUS to experiment with,
and might not work with every kernel. USE AT YOUR OWN RISK.

--security-erase PWD

THIS FEATURE IS EXPERIMENTAL AND NOT WELL TESTED.  USE  AT  YOUR
              OWN RISK.

-- 
Stan
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