lkml.org 
[lkml]   [2008]   [Oct]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    Subject[PATCH 0/6] SATA: Blacklist systems that spin off disks during ACPI power off (rev. 2)
    Date
    On Friday, 3 of October 2008, Rafael J. Wysocki wrote:
    > On Friday, 3 of October 2008, Andrew Morton wrote:
    > > On Fri, 3 Oct 2008 13:27:18 +0200 "Rafael J. Wysocki" <rjw@sisk.pl> wrote:
    > >
    > > > > Can we just create a new global?
    > > > >
    > > > > extern bool system_entering_hibernation_or_whatever;
    > > >
    > > > Yes, we can, but what about:
    > > >
    > > > extern bool system_entering_hibernation(void);
    > > >
    > > > that will become a static inline in case of !CONFIG_HIBERNATION,
    > > > and using a static variable?
    > >
    > > Sure, even better.
    >
    > OK, I'll respin the entire series, then.

    As promised:

    ---
    SATA: Blacklist systems that spin off disks during ACPI power off (rev. 2)

    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, which is implemented by the following series of
    patches.



    \
     
     \ /
      Last update: 2008-10-03 23:57    [W:0.033 / U:30.124 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site