Well, if ntpd starts up and time really of then there can be a big change,
> Subject: RE: agent_check_and_process: select info
> Date: Tue, 15 Sep 2009 10:48:53 -0700
> From: mike_ay...@tvworks.com
> To: bart.vanass...@gmail.com
> CC: sbazd...@hotmail.com; net-snmp-users@lists.sourceforge.net
>
> > From: Bart Van Assche [mailto:bart.vanass...@gmail.com]
> > Sent: Monday, September 14, 2009 11:22 PM
>
>
> > >> Thanks, let me know if you have an idea for a fix? It is easy to
> > >> reproduce. Just let snmp agent run then set the system date and time
> > >> backwards.
> > >
> > > What is the operational requirement for setting the clock
> > backwards? A remote-managed time machine?
> >
> > Please make yourself familiar with the operation of the ntpd process.
> > ntpd can set the clock backwards, and this is a well documented aspect
> > of the ntpd process.
>
> Perhaps I misunderstand. NTPD, in normal operation, changes the clocks
> by tiny amounts. As I read the problem, adjusting the clock backwards by ten
> microseconds would cause the snmp_select_info() call to not return until at
> least ten more microseconds had lapsed. This should hardly cause any real
> problem. Is the issue more severe than this?
>
>
> Mike
>
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