Re: [stable 2.6.24] WARNING: at kernel/time/clockevents.c

Frans Pop
2008-02-13T08:47:33Z

On Wednesday 13 February 2008, Thomas Gleixner wrote:
> On Tue, 12 Feb 2008, Andrew Morton wrote:
> > On Sun, 10 Feb 2008 14:40:21 +0100 Frans Pop <elendil@planet.nl> wrote:
> > the hrtimer code is preparing an invalid ktime_t. Note that
> > clockevents_program_event() actually fails when this happens - I am
> > surprised that this is not causing observeable userspace problems.
> >
> > The WARN_ON_ONCE() means that you'll only see this warning once per
> > boot. But the actually error could be happening any number of times
> > without being reported.
> >
> > Looks pretty serious?
>
> Yes. It's the same problem, which got fixed with:
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit
>;h=62f0f61e6673e67151a7c8c0f9a09c7ea43fe2b5

OK, so probably glibc performs a unit test during build that asks for a long
sleep. I guess that makes sense.

Thanks Thomas and Andrew.