On Wed, Sep 14, 2011 at 10:00:07AM +0300, Avi Kivity wrote: > On 09/13/2011 10:21 PM, Don Zickus wrote: > >Or are you saying an NMI in an idle system will have the same %rip thus > >falsely detecting a back-to-back NMI? > > > > > > That's easy to avoid - insert an instruction zeroing the last > nmi_rip somewhere before or after hlt. It's always okay to execute > such an instruction (outside the nmi handler itself), since nmi_rip > is meant to detect a "no instructions executed" condition. Ah. Like a touch_nmi_watchdog() type of thing. Interesting. I'll poke around the idle code. Need to instrument a reproducer first. Thanks, Don -- 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
