Red Hat Bugzilla – Bug 401221
stopping ntpd crashes domU
Last modified: 2009-02-13 10:49:44 EST
Description of problem:
After running ntpd in a domU for some time (after a week or so), 'service ntpd
stop' crashes the domU kernel.
Version-Release number of selected component (if applicable):
[root@itfederation ~]# uname -r
[root@itfederation ~]# rpm -q ntp
[root@lnxvmhost4 ~]# uname -r
Very; it's happened to me 5-6 times on VMs with uptimes > a couple weeks.
Steps to Reproduce:
1. Install a RHEL5 VM w/ ntpd running; don't modify independent_wallclock
2. Wait a few weeks (don't really know how long, but I've not had this problem
on VMs w/ uptimes of only 10-40 minutes)
3. Issue 'service ntp stop'
ntp stops gracefully
ntp is running on dom0. I've modified our build scripts not to run ntpd on
VMs, since it's unneeded when dom0 runs it. However, when I went to stop ntp
on a couple of non-critical (fortunately) VM servers today, they both panicked.
I will try to reproduce this on a test VM and attach the panic output, but I
want to wait a week to be confident it'll happen.
I can't reproduce this problem. If you can still reproduce it on latest RHEL-5.2
kernels, then capture a kernel panic log and attach it to this ticket.
You can easily capture kernel panics by editing /etc/sysconfig/xend and setting
XENCONSOLED_LOG_GUESTS=yes, and then rebooting the host. After this all guest
console output is loged to /var/log/xen/console/guest-NAME.log
Closing this ticket as it was not reproducible and the reported has not responded to the needinfo request for over 6 months. Please reopen is it can be reproduces of you can provide some detail.