From 8a1c8eb75be492e20003966652c9cd5ff57a559d Mon Sep 17 00:00:00 2001 From: Aristeu Rozanski Date: Thu, 30 Oct 2008 13:08:50 -0400 Subject: x86, nmi-watchdog: update procfs nmi_watchdog file documentation v2 Impact: improve documentation This patch updates the /proc/sys/kernel/nmi_watchdog documentation. Updated: included Randy Dunlap's corrections. Signed-off-by: Aristeu Rozanski Acked-by: Randy Dunlap Signed-off-by: Ingo Molnar --- Documentation/nmi_watchdog.txt | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'Documentation/nmi_watchdog.txt') diff --git a/Documentation/nmi_watchdog.txt b/Documentation/nmi_watchdog.txt index 90aa4531cb6..bf9f80a9828 100644 --- a/Documentation/nmi_watchdog.txt +++ b/Documentation/nmi_watchdog.txt @@ -69,6 +69,11 @@ to the overall system performance. On x86 nmi_watchdog is disabled by default so you have to enable it with a boot time parameter. +It's possible to disable the NMI watchdog in run-time by writing "0" to +/proc/sys/kernel/nmi_watchdog. Writing "1" to the same file will re-enable +the NMI watchdog. Notice that you still need to use "nmi_watchdog=" parameter +at boot time. + NOTE: In kernels prior to 2.4.2-ac18 the NMI-oopser is enabled unconditionally on x86 SMP boxes. -- cgit v1.2.3