[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Xen 4 TSC problems
On Tue, Sep 13, 2011 at 09:16:27AM +0200, Philippe Simonet wrote: > Hi Xen developers > > i just would like to inform you that I have exactly the same problem > with Debian squeeze and xen, with > 50 seconds time jump on my dom0 and domu. NTP is running on all > dom0/domuU, clocksource is 'xen' > everywhere. > > some messages : > syslog : > Sep 11 13:56:50 dnsit22 kernel: [571603.359863] Clocksource tsc > unstable (delta = -2999662111513 ns) > > xm dmesg : > ... > (XEN) Platform timer is 14.318MHz HPET > ... > (XEN) Platform timer appears to have unexpectedly wrapped 10 or more times. > (XEN) TSC marked as reliable, warp = 0 (count=2) > ... > > I had some contact with Olivier Hanesse and it indicates that he > doesn't have any solution for this problem, > and all what was proposed in February didn't solved this problem. Which was the max_cstate=0 ? .. > config : > -------------------------------------- > Linux dnsit22.swissptt.ch 2.6.32-5-xen-amd64 #1 SMP Tue Jun 14 > 12:46:30 UTC 2011 x86_64 GNU/Linux > -------------------------------------- > HP DL385 > -------------------------------------- > vendor_id : AuthenticAMD > cpu family : 16 > model : 9 > model name : AMD Opteron(tm) Processor 6174 > stepping : 1 > cpu MHz : 3058776.574 OK, that is really messed up. Your house must be on fire for the machine to be running at 3058GHz! Jeremy, this sounds familiar - did we have a patch for this in your 2.6.32 tree? _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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