x86, nmi-watchdog: update procfs nmi_watchdog file documentation v2

[sfrench/cifs-2.6.git] / Documentation / nmi_watchdog.txt

diff --git a/Documentation/nmi_watchdog.txt b/Documentation/nmi_watchdog.txt
index 90aa4531cb67343b03b396610aa0db77c1d1e0ba..bf9f80a982829ae06062e9cc118762335936ad4a 100644 (file)
--- 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.
 
 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.
 
 NOTE: In kernels prior to 2.4.2-ac18 the NMI-oopser is enabled unconditionally
 on x86 SMP boxes.