https://bugzilla.novell.com/show_bug.cgi?id=675161
https://bugzilla.novell.com/show_bug.cgi?id=675161#c18
Thomas Renninger changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |len.brown@intel.com,
| |rjw@novell.com
AssignedTo|rjw@novell.com |trenn@novell.com
--- Comment #18 from Thomas Renninger 2011-04-16 16:55:55 UTC ---
Sounds as if lapic timer stops in deeper idle states?
I added a patch to our master branch:
Can you fetch it in some hours (should get build and pushed automatically):
ftp://ftp.suse.com/pub/projects/kernel/kotd/master/x86_64
kernel-default.rpm and kernel-default-base.rpm (or desktop).
Best double check whether the patch is really included by:
rpm -qp --changelog kernel-default.rpm |less
commit 85b156b3a18467a940cb72308116b51acb689a1e
Author: Thomas Renninger
Date: Sat Apr 16 18:42:01 2011 +0200
- intel_idle: Make lapic_timer_reliable_states a boot param
(bnc#675161).
To get the initial value of lapic_timer_reliable_states on your machine you can
boot with these params:
nolapic ignore_log_level ddebug_query="file intel_idle.c +p"
If it's bigger than 1, then set it to 1 with the new kernel with boot param:
intel_idle.lapic_timer_reliable_states=1
Does this help?
Hm, I wonder why there is kind of random memory corruption when the timer
stops, maybe it's something else (leave_mm()/TLB flushing?), but as it's
related to lapic, it might help and it's easy to test...
I have to look at this driver anyway, I can take over the bug.
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