Il 15/09/2014 20:14, Matt Mullins ha scritto: > On Tue, Sep 09, 2014 at 11:53:49PM -0700, Matt Mullins wrote: >> On Mon, Sep 08, 2014 at 06:18:46PM +0200, Paolo Bonzini wrote: >>> What version of QEMU? Can you try the 12.04 qemu (which IIRC is 1.0) on >>> top of the newer kernel? >> >> I did reproduce this on qemu 1.0.1. >> >> What would you like me to test next? I've got both VM hosts currently running >> 3.17-rc4, so I'll know tomorrow if that works. >> >> I've been looking into this off-and-on for a while now, and this time around I >> may have found other folks experiencing the same issue: >> https://issues.apache.org/jira/browse/CLOUDSTACK-6788 >> That one's a little empty on the details (do y'all know more about to whom that >> bug was "known" than I do?), but >> https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1297218 >> sees similar symptoms due to running NTP on the host. I may try disabling that >> after the current round of testing-3.17-rc4 finishes up. > > A summary of my testing from last week: > * 3.17-rc4 (with qemu 2.0) seems to have had the same problem as well. > * Disabling ntpd didn't help either. > * <timer name="kvmclock" present="no"/> _does_ seem to make my VM migrate > without issue. > > I'm not really sure what to look at from here. I suppose leaving kvmclock > disabled is a workaround for now, but is there a major disadvantage to doing > so? Sorry for not following up. I think we have QEMU patches to fix this issue. I'll reply as soon as they are available in a git tree. Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
