On Tue, 2011-07-12 at 10:18 +0900, MINOURA Makoto / 箕浦 真 wrote: > We're experiencing similar but slightly different > problems. Some KVM hosts crash after 210-220 uptime. > Some of them hits divide-by-zero, but one of them shows: > > [671528.8780080] BUG: soft lockup - CPU#4 stuck for 61s! [kvm:11131] > > (sorry we have no full crash message including the backtrace) > > The host kernel is 2.6.32.11-based (ubuntu 2.6.32-22-server, > 2.6.32-22.36). > > I'm not sure but probably the task scheduler is confusing by > the sched_clock overflow?
I'm working on a debug patch that will hopefully trip sched_clock overflows very early to see if we can't shake these issues out. thanks -john _______________________________________________ stable mailing list stable@linux.kernel.org http://linux.kernel.org/mailman/listinfo/stable
