20 Sep
2011
20 Sep
'11
7:04 p.m.
Hi Andy,
You may recall recently a couple of us had time issues on Dunkel and I
gave your suggestion a try:
On Tue, September 6, 2011 11:22 pm, Andy Smith wrote:
Can I ask you to try both of:
- Installing kernel linux-image-2.6-686-bigmem
- Remove "clocksource=jiffies" from your kernel command line
We have noticed timing oddities for the
"jiffies" clocksource on the
new servers, which run a newer version of Xen compared to other
servers. The default clocksource is "xen".
I suspect your problems will go away once you do this.
Unfortunately the problem is back!
Sep 20 15:51:33 targur ntpd[12773]: synchronized to 193.228.143.12, stratum 2
Sep 20 15:51:33 targur ntpd[12773]: kernel time sync status change 0001
Sep 20 16:59:15 targur ntpd[12773]: synchronized to 85.119.80.233, stratum 2
Sep 20 17:01:49 targur ntpd[12773]: no servers reachable
Sep 20 17:17:41 targur ntpd[12773]: synchronized to 193.228.143.12, stratum 2
Sep 20 17:17:58 targur ntpd[12773]: synchronized to 173.201.38.85, stratum 2
Sep 20 17:17:11 targur ntpd[12773]: time reset -46.867178 s
Sep 20 17:17:33 targur ntpd[12773]: synchronized to 2001:470:d:10ee::5,
stratum 2
Sep 20 17:18:51 targur ntpd[12773]: synchronized to 193.228.143.12, stratum 2
As per before the real issue for me (and, I believe, the other user seeing
similar) was Dovecot falling over as a result.
Do you have any other ideas what the issue might be? Of course, I'm only
asking you in case you think it might be hardware(/Xen) related - if it's
an NTPD or other software issue then I fully accept you're not here for
such support!
For info, my uname -r is 2.6.26-2-686-bigmem and my Grub menu.lst is at
http://www.newtonnet.co.uk/temp/menu.lst
Regards,
Mathew