http://bugzilla.kernel.org/show_bug.cgi?id=12304
------- Comment #48 from yakui.z...@intel.com 2009-01-23 19:39 -------
> ykzhao,
> is there anything else I can test? To me, it seems like problem with
> "overvoltaged" processor when NB is AC pluged. But not sure because I did not
> find a way how to measure it from Linux.
> What component controls the CPU core voltage? Is it on OS level (acpi_cpufreq)
> or is it independent of OS?
This is not controlled by OS and this is transparent to OS. It is controlled
by BIOS.
>
>From the test it seems that the C-state can work well under high frequency. If
the system works in tick mode, the issue is easiser to reproduce.
Even when the boot option of "idle=poll" is added, the system still freezes if
the tickless feature is disabled.
And if the local APIC timer is disabled, the system still works after
36hours.(On the 32-bit kernel the "nolapic_timer" is added. On the 64-bit
kernel the "noapictimer" is added). Right?
Will you please double check whether it still can work well if the local
APIC timer is disabled?
If so, maybe this issue is related with the local APIC timer.
thanks.
--
Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.
------------------------------------------------------------------------------
This SF.net email is sponsored by:
SourcForge Community
SourceForge wants to tell your story.
http://p.sf.net/sfu/sf-spreadtheword
_______________________________________________
acpi-bugzilla mailing list
acpi-bugzilla@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
