Messages in this thread | | | Date | Wed, 16 Jan 2008 15:28:54 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: HPET timer broken using 2.6.23.13 / nanosleep() hangs |
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On Wed, 16 Jan 2008, Thomas Gleixner wrote:
> On Sun, 13 Jan 2008, Dhaval Giani wrote: > > On Sun, Jan 13, 2008 at 08:10:46AM -0500, Andrew Paprocki wrote: > > > I applied the patch to my 2.6.23.13 tree and upon reboot it stopped right after: > > > > > > Clocksource tsc unstable (delta = ... ns) > > > Time: hpet clocksource has been installed. > > > > > > It locked up hard.. cursor stopped blinking and SysRq isn't working either. > > The hint is in the original report: > > Clocksource tsc unstable (delta = 500013666 ns) > > That means, that the TSC was counting, but HPET not. So it looks like > the HPET readout is stale. Which explains, why after switching to HPET > clocksource the time system gets hosed. > > I wonder why the HPET counter works check did not catch this. > > Can you please apply the path below and provide the output ?
Oh. Stupid me. This is 2.6.23. So the patch won't apply.
Andrew, can you please check, whether 2.6.24-rc8 works on your machine ?
I look into a backport fix for 2.6.23 later.
Thanks, tglx
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