lkml.org 
[lkml]   [2009]   [Jan]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 6/6] SATA PIIX: Blacklist system that spins off disks during ACPI power off
2009/1/19 Rafael J. Wysocki <rjw@sisk.pl>:
> From: Rafael J. Wysocki <rjw@sisk.pl>
>
> Some notebooks from HP have the problem that their BIOSes attempt to
> spin down hard drives before entering ACPI system states S4 and S5.
> This leads to a yo-yo effect during system power-off shutdown and the
> last phase of hibernation when the disk is first spun down by the
> kernel and then almost immediately turned on and off by the BIOS.
> This, in turn, may result in shortening the disk's life times.
>
> To prevent this from happening we can blacklist the affected systems
> using DMI information.
>
> Blacklist HP 2510p that uses the ata_piix driver.
>
> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

Tested-by: Maciej Rutecki <maciej.rutecki@gmail.com>

Tested on HP Compaq nx6310

Thanks for patches

--
Maciej Rutecki
http://www.maciek.unixy.pl


\
 
 \ /
  Last update: 2009-01-20 08:35    [from the cache]
©2003-2011 Jasper Spaans. Advertise on this site