esm module and ntp problem

Michael Redinger Michael.Redinger at uibk.ac.at
Sat Jan 11 09:59:00 CST 2003


On Fri, 10 Jan 2003, JP Vossen wrote:

> On Fri, 10 Jan 2003, Michael Redinger wrote:
> 
> > Summary:
> > when esm kernel module is loaded on a 2650, the ntpd regularily looses the
> > synchronization. 100% reproduceable for me.
> 
> I have a PE500SC and am NOT running the esm module, byt my ntp loses
> synchronization every Monday morning just as my backup job is ending.  All RH8
> errata applied.  Search the list archives for details.  No joy so far... :-(


I've several 1550, 1650 and 2650 here, I've never seen something similar 
to your problem ... 

Well, my problem seems to be different. However, your mail reminded me to 
add the ntpd -d output (to the web forum page). Thanks.

I now found that a mail from Geoff French (Geoff.French at noaa.gov) 
describes maybe exactly the same problem:

http://lists.us.dell.com/pipermail/linux-poweredge/2002-December/010629.html


A small part of the debugging output is given below.
If I interpret it correctly, the interresting part is
"ntp_set_tod: settimeofday: 0: Interrupted system call", then ntpd clears 
the connections and restarts syncing (again completely reproducable for 
me):


Jan 11 16:18:09 ns0 ntpd: clock_update: at 1104 assoc 6 
Jan 11 16:18:09 ns0 ntpd: local_clock: assocID 44887 off 3.842509 jit 
0.001390 sta 3
Jan 11 16:18:09 ns0 ntpd: step_systime: step 3.842509 residual 0.000000
Jan 11 16:18:09 ns0 ntpd: In ntp_set_tod
Jan 11 16:18:09 ns0 ntpd: ntp_set_tod: settimeofday: 0: Interrupted system 
call
Jan 11 16:18:09 ns0 ntpd: ntp_set_tod: Final result: settimeofday: 0: 
Interrupted system call
Jan 11 16:18:09 ns0 ntpd: local_clock: mu 908 noi 127846.538 stb 0.000 pol 
4 cnt 0
Jan 11 16:18:09 ns0 ntpd: peer_clear: at 1104 assoc ID 44884
Jan 11 16:18:09 ns0 ntpd: peer_clear: at 1104 assoc ID 44888
Jan 11 16:18:09 ns0 ntpd: peer_clear: at 1104 assoc ID 44889
Jan 11 16:18:09 ns0 ntpd: peer_clear: at 1104 assoc ID 44887
Jan 11 16:18:09 ns0 ntpd: peer_clear: at 1104 assoc ID 44885
Jan 11 16:18:09 ns0 ntpd: peer_clear: at 1104 assoc ID 44886
Jan 11 16:18:09 ns0 ntpd: clear_all: at 1104
Jan 11 16:18:09 ns0 ntpd: report_event: system event 'event_clock_reset' 
(0x05) status 'leap_none, sync_unspec, 15 events, event_peer/strat_chg' 
(0xf4)
Jan 11 16:18:09 ns0 ntpd: report_event: system event 
'event_peer/strat_chg' (0x04) status 'leap_none, sync_unspec, 15 events, 
event_clock_reset' (0xf5)




Michael

-- 
Michael Redinger
Zentraler Informatikdienst (Computer Centre)
Universitaet Innsbruck                  
Technikerstrasse 13                     Tel.: ++43 512 507 2335
6020 Innsbruck                          Fax.: ++43 512 507 2944
Austria					Mail: Michael.Redinger at uibk.ac.at








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