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Message-ID: <41840b750809171236s524f1a70i3e1624a2facd9d44@mail.gmail.com>
Date: Wed, 17 Sep 2008 15:36:36 -0400
From: "Shem Multinymous" <multinymous@gmail.com>
To: "Elias Oltmanns" <eo@nebensachen.de>
Subject: Re: Laptop shock detection and harddisk protection
Cc: "Pavel Machek" <pavel@suse.cz>, "Tejun Heo" <tj@kernel.org>,
       "Thomas Renninger" <trenn@suse.de>,
       "Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
       "IDE/ATA development list" <linux-ide@vger.kernel.org>
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On Wed, Sep 17, 2008 at 11:21 AM, Elias Oltmanns <eo@nebensachen.de> wrote:
>>> 2. Make shock protection interact nicely with suspend operations:
>>>    currently, we are out of luck if anything should happen after
>>>    processes have been frozen. This is particularly unfortunatel in the
>>>    case of s2disk.
>>
>> I'd say that s2disk is similar to early boot... no protection there.
>
> Well, this is true for resume. However, I can't help thinking that we
> may do better than that until the disk spins down, particularly while
> writing the image to disk.

Agreed.
Practically, disk protection during suspend-to-disk sounds very
useful, given the typical usage scenario: you press button to
hibernate and start shuffling around your chair/desk in preparation
for leaving the room. Dropping the laptop is more likely than ever at
this point. Resume-from-disk tends to be done after settling down into
your chair/desk, so the drop risk is lower.

  Shem