On Mon, May 13, 2013 at 08:31:33AM +0200, Jan Kiszka wrote: > On 2013-05-12 18:52, Kashyap Chamarthy wrote: > >>> -------------------- > >>> .... > >>> [ 217.938034] Uhhuh. NMI received for unknown reason 30 on CPU 0. > >>> [ 217.938034] Do you have a strange power saving mode enabled? > >>> .[ 222.523373] Uhhuh. NMI received for unknown reason 20 on CPU 0. > >>> [ 222.524073] Do you have a strange power saving mode enabled? > >>> [ 222.524073] Dazed and confused, but trying to continue > >>> [ 243.860319] Uhhuh. NMI received for unknown reason 30 on CPU 0 > >>> ..... > >>> -------------------- > >>> At the moment, L2 guest creation stuck at the above message > >>> > >> Are those in L2 dmesg or L1? > > > > L2 dmesg. > > > > > >>> $ cat /etc/grub2.cfg | egrep -i 'hpet|nmi' > >>> > >> IIRC watchdog is enabled by default. > > > > Indeed, you're right. I disabled NMI on L1, and rebooted the newly > > created L2 guest starts just fine. > > NMI watchdogs go via some perf counters theses days IIRC. Can anyone > tell me which of those may be used in Kashyap's setup? I'm probably > lacking them for my guests and therefore do not see the errors. > Try running with -cpu host for L1. Your CPU definition probably lacks PMU leaf. -- Gleb. -- 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