Re: calcru: runtime went backwards

On Wed, 14 Jul 2004, Daniel Lang wrote:

> since my most severe problems appear to be resolved, no more
> panics so far (*knock on wood*), I would like to ask about
> some other matters which are occurring on this host (see now
> resolved and closed PR kern/68779 for machine details).
>
> 1. I get tons of messages like this on the console:
>
> calcru: runtime went backwards from 31915600 usec to 31915590 usec for pid 1265 (httpd)

FreeBSD version or source update time would be nice.

Do you have WITNESS and/or INVARIANTS enabled?

> It always seems to be a httpd process. httpd is apache2 linked with
> "libthr". It especially happens if I use the 'ps' and the 'top'
> command. If this happens, the controlling terminal where the
> command (e.g. ps) was issued, hangs for a while. Everything else
> seems to be fine, though.
>
> I recall that there was a thread in -current about this matter,
> but I couldn't find any solution right now...

There aren't a lot of libthr uses... thought of trying libpthread?

> 2. I also get lots of the following messages:
>
> [..]
> Jul 14 18:02:08 atleo6 ftpd[81983]: getsockname (/usr/libexec/ftpd): Socket operation on non-socket
> Jul 14 18:02:26 atleo6 ftpd[81992]: getsockname (/usr/libexec/ftpd): Socket operation on non-socket
> Jul 14 18:03:56 atleo6 ftpd[82043]: getsockname (/usr/libexec/ftpd): Socket operation on non-socket
> Jul 14 18:04:23 atleo6 ftpd[82055]: getsockname (/usr/libexec/ftpd): Socket operation on non-socket
> [..]
>
> What could be wrong with ftpd here? I thought about ktracing ftpd, but
> there are 200-300 concurrent ftpd processes active and the messages
> appear very irregulary. If I could ktrace the parent ftpd and all
> its childen, I'm afraid the trace-log would fill up all disk-space
> before the problem even appears... Suggestions are appreciated
> though.

Is this the stock ftpd?


-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite_at_gumbysoft.com          |  www.FreeBSD.org