Messages in this thread | | | Date | Thu, 26 Feb 2009 23:06:17 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: Linux 2.6.29-rc6 |
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On Thu, 26 Feb 2009, john stultz wrote: > On Thu, 2009-02-26 at 22:35 +0100, Jesper Krogh wrote: > > > Also mind sending the full dmesg for both kernels? > > > > http://krogh.cc/~jesper/dmesg-2.6.29-rc6.txt > > http://krogh.cc/~jesper/dmesg-2.6.26.8.txt > > So one interesting difference: > 2.6.26.8: TSC calibrated against PM_TIMER > 2.6.29-rc6: Fast TSC calibration using PIT > > Thomas, any thoughts as to why we might be calibrating off the PIT > instead of the PM_TIMER w/ 2.6.29?
Yup, because we introduced the Fast PIT calibration in 2.6.28.
Is the delta anything NTP might get upset about:
2.6.26: time.c: Detected 2311.847 MHz processor. 2.6.29: Detected 2310.029 MHz processor.
If yes, then we need to fix NTP not the calibration code :)
> Maybe does this line provide a hint? > FADT: X_PM1a_EVT_BLK.bit_width (16) does not match PM1_EVT_LEN (4)
Red herring.
Thanks,
tglx
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