Messages in this thread | | | Date | Thu, 19 Jul 2012 10:06:10 -0400 | From | Don Zickus <> | Subject | Re: [PATCH] tty, add kref to sysrq handlers |
| |
On Tue, Jun 12, 2012 at 11:22:02AM -0400, Prarit Bhargava wrote: > [This seems to have been missed ... sending again] > > On a large system with a large number of tasks, the output of > > echo t > /proc/sysrq-trigger > > can take a long period of time. If this period is greater than the period > of the current clocksource, the clocksource watchdog will mark the > clocksource as unstable and fail the clocksource over.
A lot of our customers are running into this issue (especially the big boxes). This is patch solves their problem nicely.
The approach is a little heavier than the current approach, but it allows a useful feature like sysrq-t to work reliably.
Acked-by: Don Zickus <dzickus@redhat.com>
| |