On Tuesday, May 28, 2013 02:59:25 PM Giacomo Perale wrote: > 2013/5/28 Rafael J. Wysocki <rjw@xxxxxxx>: > > On Monday, May 27, 2013 10:07:18 PM Giacomo Perale wrote: > >> 2013/5/27 Zhang Rui <rui.zhang@xxxxxxxxx>: > >> > On Sun, 2013-05-26 at 15:51 +0200, Giacomo Perale wrote: > >> >> Hello, > >> >> > >> >> after upgrading from 3.8.7 to 3.9.x I noticed some slightly longer > >> >> delays when resuming from suspend-to-disk and a few new error messages > >> >> in the logs: > >> >> > >> >> > >> >> Not having connected the issue with the previous error messages I > >> >> initially blamed the disk and replaced it with a new one thinking it > >> >> was broken, but the problem persisted so I started a bisection run > >> >> that pointed to this commit: > >> >> > >> >> > >> >> b8bb6cb999858043489c1ddef08eed2127559169 is the first bad commit > >> >> commit b8bb6cb999858043489c1ddef08eed2127559169 > >> >> Author: Zhang Rui <rui.zhang@xxxxxxxxx> > >> >> Date: Thu Nov 22 15:45:02 2012 +0800 > >> >> > >> >> step_wise: Unify the code for both throttle and dethrottle > >> >> > >> >> Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> > >> >> > >> > I do not see how this would affect the sata hibernation/resume. > >> > but anyway, would you please try the four patches in comment #10, #11, > >> > #12 and #13 in > >> > https://bugzilla.kernel.org/show_bug.cgi?id=58301 > >> > and check if they help? > >> > > >> > thanks, > >> > rui > >> > > >> > >> No luck, with git head and those four patches hibernation is > >> completely broken, the system doesn't even shut down, it just loses > >> the disks (I'm attaching what I could get from /proc/kmsg to this > >> email). > >> > >> With the fair_share governor or with step_wise _and_ commit > >> b8bb6cb999858043489c1ddef08eed2127559169 reverted everything is ok > >> again. > >> > >> I think there's something wrong in the commit logic (for example, why > >> are you checking for "instance->target != THERMAL_NO_TARGET" when > >> update_instance_for_throttle checked for "instance->target == > >> THERMAL_NO_TARGET"?) but my attempts to fix it failed, probably > >> because I'm not sure of what 'continue;' does inside a > >> list_for_each_entry macro. > > > > Can you please attach the output of acpidump from your system? > > > > Rafael > > > > > > Sure, here it is. Thanks! Can you please also check if the patch below makes any difference? Rafael --- drivers/thermal/step_wise.c | 3 +++ 1 file changed, 3 insertions(+) Index: linux-pm/drivers/thermal/step_wise.c =================================================================== --- linux-pm.orig/drivers/thermal/step_wise.c +++ linux-pm/drivers/thermal/step_wise.c @@ -131,6 +131,9 @@ static void thermal_zone_trip_update(str continue; old_target = instance->target; + if (!throttle && old_target == THERMAL_NO_TARGET) + continue; + instance->target = get_target_state(instance, trend, throttle); /* Activate a passive thermal instance */ -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
