Hi,
I have a host running a 2.6.32.7 kernel, and I'm using qemu-kvm 0.12.2.
I have multiple guests, and one of them is running Windows XP. If I
stare at the clock, I see that every now & then (~5s), it slows down a
bit, and then try to cope with it. If I run some NTP synchronization
software like ntpd, the offset is as high as 1s lost every 10s or so,
which makes it impossible to use anything time based on the guest (audio
stuff, mainly).
I tried messing (as said on IRC) with the -rtc parameters, but to no
avail. I tried the driftfix=slew option found in the --help output, but
it says that driftfix is not a valid setting for rtc.. And anyway, I
have no idea what this does (I'll be reading about it probably...)
I've seen something remotely connected to this on the proxmox forum, but
it was not that helpful (and proxmox runs qemu 0.11.x as it seems):
http://forum.proxmox.com/threads/2050-Slow-clock-time-drift-in-windows-guests?p=17962
I remember using the -rtc-td-hack (and in fact, just read again about it
here:
http://forum.proxmox.com/threads/2381-Recommended-clock-source-for-KVM-guests),
but it's not there anymore in 0.12.x, and I have no idea what it used to
do (going on for some reading as well, when I have some time ;))
Oh, and the guests running linux are working just fine, and have no
clock issue.
Has anyone encountered such a problem?
Regards,
Gilou
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