[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] (XEN) traps.c:2430:d0 Domain attempted WRMSR 00000000c0010000 from 0x0000000000430076 to 0x0000000000030076.
On Mon, Aug 15, 2011 at 01:45:11PM +0100, Jan Beulich wrote: > >>> On 15.08.11 at 14:30, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> > >>> wrote: > > On Mon, Aug 15, 2011 at 08:40:36AM +0100, Jan Beulich wrote: > >> >>> On 14.08.11 at 15:48, Keir Fraser <keir.xen@xxxxxxxxx> wrote: > >> > You can specify guest_loglvl=error to turn off warning messages, but that > >> > would turn off other messages that might actually be interesting. > >> > Alternatively you'd have to disable the message in source code and > >> > rebuild > >> > the hypervisor. Possibly we should reduce this message to debug loglevel > >> > rather than warning logelevel: I agree the message is very much not a > >> > rarity. > >> > >> I tend to disagree - the kernel shouldn't really attempt these writes. > >> One of the things addressing of which is more cumbersome in pv-ops > >> (which I assume is in use here) than "classic" kernels. > > > > It might be good to find out what those calls are and see about actually > > fixing it. > > These are performance monitoring MSRs, and as we seem to agree the > whole perf subsystem is currently not usable with Xen. I would like to see it getting usuable with Xen. Not sure if that is just a "wish" vs a reality. The folks that published the (http://people.cs.vt.edu/~rnikola/files/vee2011.pdf) http://lists.xensource.com/archives/html/xen-devel/2011-05/msg01233.html seemed to have done some work. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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