server hang problem

laxmikant · August 20, 2009, 1:17pm

Hello everybody..

I have RHEL-4 Server with kernel - Linux 2.6.9-78.0.1.ELlargesmp x86_64
It is used for Development usage..
That server got hang and so reboot was required, when checked log file i found following messages,

kernel: warning: many lost ticks.
kernel: Your time source seems to be instable or some driver is hogging interupts
kernel: rip __do_softirq+0x4d/0xd0
kernel: Falling back to HPET

Can anybody help me out to understand what are these messages?
What action need to be taken to avoid these?
I would appreciate your help..
Thanks.

Neo · August 20, 2009, 2:37pm

This is a known Red-Hat bug:

https://bugzilla.redhat.com/show_bug.cgi?id=429010

laxmikant · August 21, 2009, 10:29am

Thanks Neo.

guru13 · August 21, 2009, 2:47pm

Can someone tell me from where should i get the logs if the server hangs?Similar to the above case. Help me Laximikant...

laxmikant · August 24, 2009, 12:50pm

When server hangs i couldnot find any way to connect and login it..so i had to reboot it and then i could filter the logs at the time when it got hung..
Thats what i done Guru..