Fully patched RHEL 5.2 dom0's and domU's. Also observed with RHEL4 domU's.
Xen live migration works for me about half the time. The rest of the time, I
get one or sometimes both of the following behaviors:
- domU clock skews forward 5 hours (our offset from UTC)
- domU clock stops ticking completely -- time() is frozen
(The latter has some very interesting side effects on various applications.)
I have "hardware clock set to GMT" and correct /etc/localtime on all systems.
Some searching turned up suggestion of /proc/sys/xen/independent_wallclock,
which I haven't tried yet. Currently at default of 0. The only changes I've
made to RedHat's default xend-config.sxp are to uncomment
xend-relocation-{server,port,address}.
My two dom0's have different CPU steppings; one is a Xeon Woodcrest 5160 and
the other is a Xeon Dempsey 5060. Should that be a problem?
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU 5160 @ 3.00GHz
stepping : 6
cpu MHz : 2000.000
cache size : 4096 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 mce cx8 apic mtrr mca cmov pat pse36 clflush d
ts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl
vmx est tm2 cx16 xtpr lahf_lm
bogomips : 7483.78
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 6
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 4
cpu MHz : 3191.870
cache size : 2048 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
fpu : yes
fpu_exception : yes
cpuid level : 6
wp : yes
flags : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 clflush d
ts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl
vmx cid cx16 xtpr lahf_lm
bogomips : 7984.27
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 48 bits virtual
power management:
--
Rich Graves http://claimid.com/rcgraves
Carleton.edu Sr UNIX and Security Admin
CMC135: 507-646-7079 Cell: 952-292-6529
_______________________________________________
rhelv5-list mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/rhelv5-list
