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    SATA PIIX: Blacklist system that spins off disks during ACPI power off · 5f451fe1
    Rafael J. Wysocki 提交于
    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: NRafael J. Wysocki <rjw@sisk.pl>
    Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
    5f451fe1
ata_piix.c 43.0 KB