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Date: Wed, 19 Jan 2011 09:59:28 -0500
From: "Ted Ts'o" <tytso@mit.edu>
To: Robert Hancock <hancockrwd@gmail.com>
Cc: John Tyree <johntyree@gmail.com>, Dmitry <dmonakhov@openvz.org>,
        Eric Sandeen <sandeen@redhat.com>, Jiaying Zhang <jiayingz@google.com>,
        Al Viro <viro@zeniv.linux.org.uk>,
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        ide <linux-ide@vger.kernel.org>
Subject: Re: PROBLEM: Disk continually remounts and hardlocks the entire
 system if running on battery.
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On Wed, Jan 19, 2011 at 08:43:03AM -0600, Robert Hancock wrote:
> 
> That doesn't look like the same thing - in their case it doesn't look
> like any SATA errors are occurring, just a remount (presumably
> triggered by some userspace software).

If you have laptop mode, you definitely want to disable it, and see if
that makes a difference.  That being said, if userspace code is able
to trigger errors like that from the hardware, I'd say at first glance
the kernel should do a better job protecting itself from buggy
software, even if it is buggy software running as root....

	       	     	      	       	       - Ted