On Fri, May 17, 2013 at 10:31:20AM +0800, Li Zefan wrote: > > Signed-off-by: Li Zefan <lize...@huawei.com>
Acked-by: Don Zickus <dzic...@redhat.com> > --- > Documentation/sysctl/kernel.txt | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt > index ccd4258..e8fabd6 100644 > --- a/Documentation/sysctl/kernel.txt > +++ b/Documentation/sysctl/kernel.txt > @@ -76,6 +76,7 @@ show up in /proc/sys/kernel: > - tainted > - threads-max > - unknown_nmi_panic > +- watchdog_thresh > - version > > ============================================================== > @@ -648,3 +649,16 @@ that time, kernel debugging information is displayed on > console. > > NMI switch that most IA32 servers have fires unknown NMI up, for > example. If a system hangs up, try pressing the NMI switch. > + > +============================================================== > + > +watchdog_thresh: > + > +This value can be used to control the frequency of hrtimer and NMI > +events and the soft and hard lockup thresholds. The default threshold > +is 10 seconds. > + > +The softlockup threshold is (2 * watchdog_thresh). Setting this > +tunable to zero will disable lockup detection altogether. > + > +============================================================== > -- > 1.8.0.2 -- 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/
