Hi everyone,
I have the problem with Xen domU's and timekeeping in dom0.
Time in dom0 was incorrect by 5 hours due to wrong timezone assumed. Fixed it by ntpdate ntp.nist.gov. The time on a dom0 was changed. I didn't append xen.independent_wallclock=1 to sysctl.conf thus the time in all domU's was also changed. But THEY DIDN'T "KNOW" THAT!
The 'date' output in domU shows time unchanged, as before, incorrect by 5 hours. But any current_time-dependent operations don't behave correctly. Quagga's OSPFd daemon doesn't add routes. 'service dhcpd stop' hangs forever while correctly stopping the daemon.
AFAIK, it hangs on 'killproc'
[root@gbuh-ufa init.d]# grep killproc dhcpd -A 2 -B 2
echo -n $"Shutting down $prog: " killproc $prog RETVAL=$? [ $RETVAL = 0 ] && rm -f $lockfile
From http://www.novell.com/coolsolutions/feature/15380.html
killproc: killproc kills a process which is given by a full path to the executable. ...cut... (by default a SIGTERM is sent, then a SIGKILL if the process does not die within 5 seconds).
So a 5 seconds interval becomes 5 hours and 5 seconds - something I'm not willing to wait for.
The problem was worked around when I did a 'date 07111158' on a dom0 and all domU's semi-simultaneously.
Is this behaviour normal or should I file a bug?
Best regards, Dmitry Mikhailov
dom0: Hardware: Intel 5000P chipset, 2 CPUs, total 8 cores [root@xensrv ~]# cat /etc/redhat-release CentOS release 5.6 (Final) [root@xensrv ~]# uname -a Linux xensrv 2.6.18-238.el5xen #1 SMP Thu Jan 13 16:41:45 EST 2011 x86_64 x86_64 x86_64 GNU/Linux [root@xensrv ~]# rpm -q ntp ntp-4.2.2p1-9.el5.centos.2.1 [root@xensrv ~]# cat /proc/cpuinfo - 8 times the following processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping : 6 cpu MHz : 1998.000 cache size : 6144 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu tsc msr pae cx8 apic mtrr cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc pni vmx est ssse3 cx16 sse4_1 lahf_lm bogomips : 6237.52 clflush size : 64 cache_alignment : 64 address sizes : 38 bits physical, 48 bits virtual power management:
domU#0 [root@gbuh-ufa init.d]# cat /etc/redhat-release CentOS release 5.5 (Final) [root@gbuh-ufa init.d]# uname -a Linux gbuh-ufa 2.6.18-238.el5xen #1 SMP Thu Jan 13 17:49:40 EST 2011 i686 i686 i386 GNU/Linux
domU#1 [root@buhserv ~]# cat /etc/redhat-release CentOS release 5.6 (Final) [root@buhserv ~]# uname -a Linux buhserv 2.6.18-238.el5xen #1 SMP Thu Jan 13 16:41:45 EST 2011 x86_64 x86_64 x86_64 GNU/Linux