On Fri, May 09, 2014 at 06:41:13AM -0700, Paul E. McKenney wrote:
> On Fri, May 09, 2014 at 05:47:12PM +1000, Anton Blanchard wrote:
> > I am seeing an issue where a CPU running perf eventually hangs.
> > Traces show timer interrupts happening every 4 seconds even
> > when a userspace task is running on the CPU.
>
> Is this by chance every 4.2 seconds? The reason I ask is that
> Paul Clarke and I are seeing an interrupt every 4.2 seconds when
> he runs NO_HZ_FULL, and are trying to get rid of it. ;-)
Hmmm, it's close to 2^32 nanoseconds, isnt't it suspiscious?
Gabriel
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
