Kernel Bug Tracker – Bug 43022
Bisected Regression - laptop fails to wake up from suspend - Thinkpad T510
Last modified: 2012-06-05 04:21:45 UTC
Created attachment 72782 [details]
My .config for 3.4-rc1
I used 3.4-rc1 on a Thinkpad T510. When I try to wake up from suspend, the screen remains dark and the machine reboots. hibernation works fine. syslog contained no information.
git bisect between v3.3 and v3.4-rc1 yielded
x86: kvmclock: abstract save/restore sched_clock_state
as the first bad commit.
If I revert b74f05d61b73af584d0c391 in 3.4-rc1, suspense and hibernate work fine again.
Affects me too on an Acer 7741G.
This is probably relevant to our interest:
Konstantin's patch in https://lkml.org/lkml/2012/4/1/79 works also
for my T510. If I apply it to 3.4-rc1 the laptop wakes up from suspension.
This was fixed in
Merge: 20d9d9a dba69d1
Author: Linus Torvalds <firstname.lastname@example.org>
Date: Wed Apr 4 10:04:01 2012 -0700
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar.
x86, kvm: Call restore_sched_clock_state() only after %gs is initialized
shipped in linux 3.4