Re: 2.6.0-test11 brings out gettimeofday() non-monotonicity

From: john stultz
Date: Thu Dec 04 2003 - 18:08:29 EST

On Thu, 2003-12-04 at 12:54, Pasi Savolainen wrote:
> I (and several others) have had some problems on dual AMD platform with
> time going backwards.

Hmmm. Just to double check, you're not running w/ the amd76x_pm module,
correct? That module has known issues regarding time.

> The 2.6.0-test11 -kernel seems to bring it forth very well. I can
> trigger this behaviour _almost_ every time, simply by running 'updatedb'.

Can you send any more info about the hardware? dmesg and .config as
well, please.

> On the other hand I recently heard from a developer that monotonic_clock
> gave in some cases values of about 0xffffffff00000756, which to me looks
> like a botched 64bit math. This was happening on UP, AMD board.

I'd very much like to hear more details about this one. What was the
test case, etc?


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