Re: 2.6.23 regression: do_nanosleep will not return

From: Rik van Riel
Date: Mon Oct 08 2007 - 10:33:19 EST


On Mon, 08 Oct 2007 15:20:26 +0200
Bernd Schubert <bs@xxxxxxxxx> wrote:
> Bernd Schubert wrote:

> > we have a system here were e.g. "sleep 1" will never finish. This
> > is an issue of 2.6.23, on all older kernel versions it did work
> > fine.
> >
> > Seems to hang in do_nanosleep()
>
>
> Update: Enabling hpet in the bios and setting clocksource=hpet as
> command line parameter will fix it, but still its not nice that
> something that worked without a problem in 2.6.22 and below suddenly
> doesn't work in 2.6.23.

Which timer source is in use when the system hangs?

--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan
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