On Saturday 26 December 2009, Pedro Ribeiro wrote: > On Sat, Dec 26, 2009 at 1:26 AM, Tejun Heo <tj@xxxxxxxxxx> wrote: > > (cc'ing Rafael) > > > > On 12/26/2009 03:10 AM, Pedro Ribeiro wrote: > >>> Oh... Can you please try this one then? > >> > >> Sorry, still hangs with this patch :( > >> > >> This only happens in hibernation... suspend is fine. > > > > Hmmm... the patch does apply to both suspend and hibernation. Rafael, > > Pedro's ThinkPad T400 burns cpu cycle for 30secs on "Atomic > > copy/restore" step of hibernation if the ultrabay is powered off. The > > original report can be found at... > > > > http://thread.gmane.org/gmane.linux.ide/44190 > > > > Please note that it's with TuxOnIce patches. Anyways, ata_piix on > > certain configurations have similar issues where after the OS is done > > suspending and powering off the piix controller, the BIOS tries to > > access it and ends up burning cpu cycles which can be worked around by > > leaving the controller on after suspend. Applying the same workaround > > didn't resolve the issue. Do you know what can make cpu burn for > > 30secs on the atomic copy/restore step? No idea. Is this reproducible with /sys/power/pm_test = core? [If you echo "core" to /sys/power/pm_test and then attempt to hibernate, it should just simulate snapshotting the system, sleep for 5 seconds and go back to your command prompt (or wherever you started the "hibernation").] > > Pedro, can you please try to reproduce the problem without TuxOnIce > > patches? > > > > Thanks. > > > > -- > > tejun > > > > Hi Rafael and Tejun, > > I am experiencing the same delay with the kernel swsusp, so this is > definitely not a TuxOnIce issue. I don't think this can be a TuxOnIce. Most likely, ACPI is trying to do something stupid in _PTS. Rafael -- 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
