On Tue, 2009-01-20 at 12:35 +0100, Ingo Molnar wrote: > * Kevin Shanahan <kmshanah@xxxxxxxxxxx> wrote: > > > On Mon, 2009-01-19 at 22:45 +0100, Rafael J. Wysocki wrote: > > > This message has been generated automatically as a part of a report > > > of regressions introduced between 2.6.27 and 2.6.28. > > > > > > The following bug entry is on the current list of known regressions > > > introduced between 2.6.27 and 2.6.28. Please verify if it still should > > > be listed and let me know (either way). > > > > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12465 > > > Subject : KVM guests stalling on 2.6.28 (bisected) > > > Submitter : Kevin Shanahan <kmshanah@xxxxxxxxxxx> > > > Date : 2009-01-17 03:37 (3 days old) > > > > Yes, please keep this on the list. > > This only seems to occur under KVM, right? I.e. you tested it with -no-kvm > and the problem went away, correct? Well, the I couldn't make the test conditions identical, but it the problem didn't occur with the test I was able to do: http://marc.info/?l=linux-kernel&m=123228728416498&w=2 > This suggests some sort of KVM-specific problem. Scheduler latencies in > the seconds that occur under normal load situations are noticed and > reported quickly - and there are no such open regressions currently. It at least suggests a problem with interaction between the scheduler and kvm, otherwise reverting that scheduler patch wouldn't have made the regression go away. Regards, Kevin. -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
