On Sun, Apr 06, 2003 at 10:16:36PM +0100, Alan Cox wrote:
> On Sul, 2003-04-06 at 20:37, Fredrik Jagenheim wrote:
> > 8 seconds; e.g. say the clock is '16:40:10'. After 6 seconds the clock is, not
> > surprisingly, '16:40:16'; but after 8 seconds it's '16:40:10' again. I'm not
> > sure it's exactly 8 seconds though, as I've only had the chance of verifying
> > this once.
>
> That kind of weirdness is useful info
I seen that on one computer too, with 2.5.59. For some strange reason IRQ0 from
timer was stopped, and thus system reported jiffies + tsc / <host_cpu_freq> as
current time, taking only 32bit tsc into account. After I disabled irqbalance,
problem never reappered (it was two cpus PIII from Dell, with serverworks chipset
& 8GB memory; I do not remember model number).
System worked in that state for several minutes, until it lost some NFS reply, which
it never retried due to stopped timer...
Best regards,
Petr Vandrovec
vandrove@vc.cvut.cz
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