Hello, On Thu, Oct 6, 2011 at 8:50 PM, <ming.lei@xxxxxxxxxxxxx> wrote: > > From: Ming Lei <ming.lei@xxxxxxxxxxxxx> > > This quirk patch fixes one kind of bug inside some Intel Sandybridge > chipsets, see reports from > > https://bugzilla.kernel.org/show_bug.cgi?id=40592. > > Many guys also have reported the problem before: > > https://bugs.launchpad.net/bugs/737388 > https://bugs.launchpad.net/bugs/794642 > https://bugs.launchpad.net/bugs/782389 > ...... > > With help from Tejun, the problem is found to be caused by 32bit PIO > mode, so introduce the quirk patch to disable 32bit PIO on SATA piix > for some Sandybridge CPT chipsets. > > Seth also tested the patch on all five affected chipsets > (pci device ID: 0x1c00, 0x1c01, 0x1d00, 0x1e00, 0x1e01), and found > the patch does fix the problem. > > Tested-by: Heasley, Seth <seth.heasley@xxxxxxxxx> > Cc: Alan Cox <alan@xxxxxxxxxxxxxxx> > Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx> > Acked-by: Tejun Heo <htejun@xxxxxxxxx> > --- > v2: avoid to use global flag Yeap, v2 too looks good to me. Jeff, can you please cc stable@xxxxxxxxxx when committing? We definitely need this in -stable. Thank you. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
