Re: 2.6.17-rc3-mm1

[Benoit Boissinot]

On Mon, May 08, 2006 at 10:48:39AM -0700, john stultz wrote:
> On Sat, 2006-05-06 at 10:30 +0000, Thomas Gleixner wrote:
> > > and when urxvtd hanged I had the following in dmesg:
> > > [  356.696000] urxvtd: empty nanosleep 356726124322 17948911854451
> > > 
> > > So I suppose something is wrong in ktime_add()
> > 
> > Well, ktime_add is adding two 64 bit values.
> > 
> > The delta between the two values is 0xFFFFFFB3451. That looks like the
> > timekeeping on your box is screwed by 0x100000000000. 
> > 
> > John, any idea ?
> 
> I suspect the system is falling back to the PIT instead of the ACPI PM
> due to mis-merged patch in 2.6.17-rc3-mm1. The PIT has had a few reports
> of problems, and I've got a test patch which I'm waiting for some
> results on from a tester before sending (I can't reproduce the issue
> locally).
> 
> Applying the patch here should get the ACPI PM working again.
> http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=f0ec5e39765cd254d436a6d86e211d81795952a4;hp=30d55280b867aa0cae99f836ad0181bb0bf8f9cb

I am running with the above patch for few days and I couldn't reproduce
the bug with it. So it looks good.

Thanks,

Benoit

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