Re: frequent lockups in 3.18rc4

From: Dave Jones
Date: Wed Dec 03 2014 - 19:22:33 EST


On Thu, Dec 04, 2014 at 12:49:29AM +0100, Thomas Gleixner wrote:

> > I just got
> >
> > [ 1472.614433] Clocksource tsc unstable (delta = -26373048906 ns)
> >
> > without any sign of the pr_err above.
>
> Bah. Would have been too simple ....
>
> Could you please run Ingos time-warp test on that machine for a while?
>
> http://people.redhat.com/mingo/time-warp-test/time-warp-test.c
>
> Please change:
>
> - #define TEST_CLOCK 0
> + #define TEST_CLOCK 1

Seems to be 32-bit only, so I built it with -m32. I assume that's ok?

Also, should I run it in isolation, with nothing else going on,
or under load where I see problems ?

Dave
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