On Thu, Nov 01 2007, Jens Axboe wrote:
> On Wed, Oct 31 2007, Jens Axboe wrote:
> > Hi,
> >
> > My x60 stopped suspending about two days ago. It just freezes after
> > printing
> >
> > Suspending console(s)
> >
> > where it would normally turn everything off and the 'moon' light would
> > go on. Posting this message in case somebody else knows what is up, if
> > not I'll do a bisect on it tomorrow.
>
> Did the bisect, it points to this commit:
>
> 1556594f913fa81d008cecfe46d7211c919a853 is first bad commit
> commit 31556594f913fa81d008cecfe46d7211c919a853
> Author: Kristen Carlson Accardi <[email protected]>
> Date: Thu Oct 25 01:33:26 2007 -0400
>
> [libata] AHCI: add hw link power management support
>
> Booting any kernel after this commit fails suspending to ram, it just
> sits there forever.
Reverting just the default AHCI flags makes it work again. IOW, with the
below patch I can suspend properly with current -git.
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index ed9b407..77f7631 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -190,8 +190,7 @@ enum {
AHCI_FLAG_COMMON = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
- ATA_FLAG_ACPI_SATA | ATA_FLAG_AN |
- ATA_FLAG_IPM,
+ ATA_FLAG_ACPI_SATA | ATA_FLAG_AN,
AHCI_LFLAG_COMMON = ATA_LFLAG_SKIP_D2H_BSY,
};
--
Jens Axboe
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