Re: [PATCH] laptop mode
From: Jens Axboe
Date: Sat Oct 11 2003 - 09:01:23 EST
On Sat, Oct 11 2003, Pavel Machek wrote:
> > > Right now laptopmode/aam is just a suspect. There are still 1-2 other
> > > small patches against IDE which could be the reason. We've dropped
> > > laptopmode/aam for the time being to see if the folks seeing repeatable
> > > corruption suddenly start behaving again.
> > aam patch is far more risky, it's a far more likely suspect. That patch
> > never reall did go out of beta. Dropping laptop-mode and aam at the same
> > time is bad engineering practice :).
> > laptop-mode cannot cause corruption that cannot show otherwise.
> Well, if fireballs have data-corrupting that happens just after spinup
> (for example), I can see how laptop-mode affects that. W/o
> laptop-mode, disk is spinning all the time so sleep bugs can not
> manifest themselves. You add laptop-mode, and...
Not very likely, imho. People have been using spin down with hdparm for
years (in Linux and elsewhere), while acoustic management is a bit more
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