* (tsc) clock too slow on Core-i7/ASRock X58
@ 2010-05-18 6:56 宾西蒙
2010-05-25 19:59 ` john stultz
0 siblings, 1 reply; 2+ messages in thread
From: 宾西蒙 @ 2010-05-18 6:56 UTC (permalink / raw)
To: linux-kernel; +Cc: BinXimeng
I have a problem with the system clock being off roughly 10 minutes a 2
hours on a Xeon W3250 (like Core-i7 920) using the 2.6.34 Linux and tsc
clocksource. Switching to hpet seems to improve the situation
momentarily, however, are there any other thoughts on this matter?
What I find odd is that the processor speed in dmesg (after TSC
calibration message) is 2.8 GHz, whereas BIOS says @2.67GHz, might that
be related?
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: (tsc) clock too slow on Core-i7/ASRock X58
2010-05-18 6:56 (tsc) clock too slow on Core-i7/ASRock X58 宾西蒙
@ 2010-05-25 19:59 ` john stultz
0 siblings, 0 replies; 2+ messages in thread
From: john stultz @ 2010-05-25 19:59 UTC (permalink / raw)
To: 宾西蒙; +Cc: linux-kernel, Thomas Gleixner
On Mon, May 17, 2010 at 11:56 PM, 宾西蒙 <binximeng@gmail.com> wrote:
> I have a problem with the system clock being off roughly 10 minutes a 2
> hours on a Xeon W3250 (like Core-i7 920) using the 2.6.34 Linux and tsc
> clocksource. Switching to hpet seems to improve the situation
> momentarily, however, are there any other thoughts on this matter?
>
> What I find odd is that the processor speed in dmesg (after TSC
> calibration message) is 2.8 GHz, whereas BIOS says @2.67GHz, might that
> be related?
So just to be clear, I assume the clock is ahead (fast) 10 minutes
every 2 hours, right?
Could you include or link to the full dmesg?
Did earlier kernels (prior to 2.6.34) work properly on this machine?
thanks
-john
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2010-05-18 6:56 (tsc) clock too slow on Core-i7/ASRock X58 宾西蒙
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