Messages in this thread | | | From | "Brown, Len" <> | Subject | RE: [PATCH] intel_idle: Don't use on Lenovo Ideapad S10-3t | Date | Tue, 3 Nov 2015 03:04:21 +0000 |
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> Lenovo Ideapad S10-3t hangs coming out of S3 with intel_idle. > The two workaround that seem to help are "intel_idle.max_cstate=0" > or "nohz=off highres=off". > > At a first glance quirk_tigerpoint_bm_sts() seemed promising, but > even when moved to early_resume it didn't do anything. > > I have no idea what's wrong here, so let's just disable intel_idle > for these machines using a DMI match.
Ville,
It is great that several workarounds have been discovered.
But it would be better to get a good idea of the root-cause before permanently ignoring the problem via a new black-list in the upstream kernel.
Is it possible for you to file a bug at bugzilla.kernel.org against Product: power-management; component: intel_idle?
In it, please put the following information.
If this is a regression, the oldest kernel that broke.
When booted with intel_idle, and then without:
dmesg | grep idle grep . /sys/devices/system/cpu/cpu0/cpuidle/*/* # turbostat --debug sleep 10 2> turbostat.out
# cd /sys/devices/system/clocksource/clocksource0 grep . available_clocksource current_clocksource
Other boot options to test:
maxcpus=1 nohpet
intel_idle.max_cstate=3 and if that fails intel_idle.max_cstate=2 and if that fails intel_idle.max_cstate=1
thanks, -Len
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