Package: xen-linux-system-2.6.32-5-xen-amd64 Version: 2.6.32-21 Severity: important
Hi, Did you receive this bug report? I hadn't received a bug ID even
though receiving the copy of the original report. Likely because the
address it was sent from originally was invalid.
-----------------
Hi All,
Im running Xen 4.0.1-rc6 Debian squeeze with pvops 2.6.32-21 kernel.
Today I noticed (when kerberos to the domain controllers stopped
working..) that the clock was 50 minutes out in dom0 -- This caused the
HVM windows domain controllers to have the wrong time.
I'm not sure if this is a kernel issue or a xen issue, but the only
thing related is I can see the following in the kernel log:
Oct 2 18:50:33 havhost1 kernel: [623480.977748] Clocksource tsc unstable
(delta = -2999660303788 ns)
But I also see in the dmesg log that xen is using it's own clock.
[ 7.676563] Switching to clocksource xen
I can't identify anything else in the logs to indicate when the time
might have changed. I have a few other dom0 at the same level that
haven't decided to change the time.
Can anyone confirm whether xen controls the time or the kernel? Also
when I corrected the time in dom0 it was still wrong in HVM domU -- How
long does it take for this to propogate? (I rebooted the VM's to correct
it immediately).
It appears the HVM domU (windows server 2008)
unexpectedly shut down at 18:51, after the unstable clocksource error.
qemu-dm logs show a reset "reset requested in cpu_handle_ioreq." and
xend.log shows a reboot
Any other pointers on how to ensure stability of clocks from dom0 to
domU HVM hosts (and pv for that matter..) would be appreciated. NTP was running
but also appeared to have crashed at the same time.
Cheers,
Mark
-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.32-5-xen-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages xen-linux-system-2.6.32-5-xen-amd64 depends on:
ii linux-image-2.6.32-5-xen-amd 2.6.32-21 Linux 2.6.32 for 64-bit PCs, Xen d
ii xen-hypervisor-3.2-1-amd64 [ 3.2.1-2 The Xen Hypervisor on AMD64
ii xen-hypervisor-4.0-amd64 [xe 4.0.1~rc6-1 The Xen Hypervisor on AMD64
xen-linux-system-2.6.32-5-xen-amd64 recommends no packages.
xen-linux-system-2.6.32-5-xen-amd64 suggests no packages.
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