Re: Loud "pop" coming from hard drive on reboot

From: Greg Freemyer
Date: Wed Apr 18 2007 - 17:29:37 EST


On 4/18/07, Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> wrote:

On Wednesday 18 April 2007, Chuck Ebbert wrote:
> Mark Lord wrote:
> > Mark Lord wrote:
> >>
> >> With the patch applied, I don't see *any* new activity in those
> >> S.M.A.R.T.
> >> attributes over multiple hibernates (Linux "suspend-to-disk").
> >
> > Scratch that -- operator failure. ;)
> > The patch makes no difference over hibernates in the SMART logs.
> >
> > It's still logging extra Power-Off_Retract_Count pegs,
> > which it DID NOT USED TO DO not so long ago.
> >
>
> Just to add to the fun, my problems are happening with the "old"
> IDE drivers...

The issue you are experiencing results in the same problem (disk doing
power off retract) but it has a totally different root cause - your notebook
loses power on reboot. It is actually a hardware problem and as you have
reported the same problem is present when using "the other" OS.

I think that the issue needs to be fixed (by detecting affected notebook(s)
using DMI?) in Linux PM handling and not in IDE subsystem because:

* there may be some other hardware devices affected by the power loss
(== they require shutdown sequence)

* the same problem will bite if somebody decides to use libata (FC7?)

Bart

OpenSUSE 10.3 is still in Alpha stage (at least a few months away from
release), but they too have switched to libata by default. (You can
override by adding a boot param).

Greg
--
Greg Freemyer
The Norcross Group
Forensics for the 21st Century
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