Re: clockevents: fix resume logic

[Thomas Gleixner]

On Tue, 2007-09-11 at 00:00 -0700, Andrew Morton wrote:
> > > This patch broke the jinxed vaio.
> > > 
> > > Which is a bit odd, considering that I must have tested it at the time. 
> > > But I bisected it right down to this commit, and the below revert patch
> > > fixed it up.
> > 
> > I just looked up, that you confirmed earlier that the patch does _not_
> > break the VAIO. 
> > 
> > I think, that some other suspend/resume/ACPI or whatever change went in
> > before this patch got merged into Linus tree. Sigh. That's pretty hard
> > to find out.
> > 
> 
> I tried just 18de5bc4c1f1f1fa5e14f354a7603bd6e9d4e3b6 on top of 2.6.22
> (threw away the lguest and xen hunks).  The same problem occurs.  2.6.22 is
> OK.

Hmm.

> I went back to the original patch which I sent to Linus and it matches
> 18de5bc4c1f1f1fa5e14f354a7603bd6e9d4e3b6.  So all I can think is that there
> must have been something else in the tree which I tested which fixed the
> bug which 18de5bc4c1f1f1fa5e14f354a7603bd6e9d4e3b6 introduced.  argh.
> 
> Can you think what would cause the symptoms which I described?  

It seems that time is not updated. Timer interrupt not active or some
other odd thing. I figure out what's going on when I find a box which
exposes the problem.

	tglx


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