On Wed, Jan 21, 2015 at 02:39:42PM +1100, Anton Blanchard wrote: > Hi Andrew, > > > On Wed, Nov 05, 2014 at 09:34:20AM +1100, Anton Blanchard wrote: > > > commit 9919e39a1738 ("kvm: ensure hard lockup detection is disabled > > > by default") provided a way for the kernel to disable the hard > > > lockup detector at runtime. > > > > > > I'm using it on ppc64 but notice some weird behaviour with the > > > nmi_watchdog procfs variable. At boot, that the hard lockup > > > detector appears to be enabled even when we disable it via > > > watchdog_enable_hardlockup_detector(false): > > > > > > # cat /proc/sys/kernel/nmi_watchdog > > > 1 > > > > > > I have to echo 0 to it then echo 1 again to enable it. > > > > > > Anton > > > > Hi Anton, > > > > Yes, the nmi watchdog proc variables are currently a bit > > confusing. Uli has posted a series to clear all that up > > though. Please see > > > > https://lkml.org/lkml/2014/10/17/340 > > Any progress on this? I'm rebasing our hardware NMI patch for ppc64 and > notice the strange behaviour is still in mainline. >
Hi Anton, I'm not aware of anything blocking this series, but maybe I missed something. Andrew Morton and Don Zickus are the ones to ask. Andrew? Don? Thanks, drew -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/