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xen-devel
Re: [Xen-devel] time jumping back and forth
> > Are you 100% sure you haven't got ntpdate running in your startup
> > scripts or crontab? It should be ignored, but its possible that
> > the port from 2.4 to 2.6 wasn't quite right.
>
> Yup. There's nothing in the running processes that should try to mess
> with the clock; in the init scripts, the only thing that does try is
> hwclock, and that bails out because it tries to to I/O access and
> can't -- and even if it could, it's a one-time thing, and I'm seeing
> jumps long after it tries to run.
>
> Now that I've written a few lines of perl to report time jumps, I
> don't see them. Heisenbug.
I've got a little program that does successive calls to
gettimeofday to look for such problems, and I haven't seen any
such issues in quite a while.
I presume syslogd uses gettimeofday to figure out what the time is?
It might be worth strace'ing it to see if you can catch things
going wrong.
Ian
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