On Thu, 2014-10-23 at 11:20 +0900, J.Hwan Kim wrote: > In my kernel, there is no kernel paramter of nmi_watchdog Is CONFIG_HARDLOCKUP_DETECTOR not set in your .config? > and I cannot find the /proc/sys/kernel/nmi_watchdog file in my system. Is CONFIG_LOCKUP_DETECTOR not set in your .config? Paul Bolle