Re: [LTP] Re: LTP - gettimeofday02 FAIL

From: Andi Kleen (ak@suse.de)
Date: Tue Nov 19 2002 - 10:46:34 EST


On Tue, Nov 19, 2002 at 04:12:23PM +0000, Alan Cox wrote:
> On Tue, 2002-11-19 at 15:10, Andi Kleen wrote:
> > It is because of the HZ=1000. See Jim Houston's mail on the same topic,
> > he analyzed the failure.
> >
> > Basically the current code cannot handle missing ticks properly on SMP and with
> > the new 1ms tick it is much more likely that a timer interrupt gets lost.
>
> Ok so add that to the other existing 2.5 timer handling bugs 8(

2.4 has the same problem, it is just much less likely to hit because of HZ=100

-Andi
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