Start daisydog with the top real-time priority
We'd like to give an extra priority bump to daisydog just to make sure
that the watchdog keeps getting pet. This is being a bit paranoid but
it shouldn't take up a lot of CPU time and we really want to make sure
that the watchdog gets petted.
BUG=chrome-os-partner:22157
TEST=chrt -p $(pgrep daisydog) shows SCHED_RR/99
Change-Id: Ida5b2dcbc20f84f99185042f32ac10c2cf41978c
Reviewed-on: https://chromium-review.googlesource.com/178305
Tested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Commit-Queue: Doug Anderson <dianders@chromium.org>
Commit-Queue: David James <davidjames@chromium.org>
diff --git a/daisydog.conf b/daisydog.conf
index f0c903e..dba1ea2 100644
--- a/daisydog.conf
+++ b/daisydog.conf
@@ -24,4 +24,4 @@
fi
end script
-exec nice -n -20 /sbin/minijail0 -u watchdog -g watchdog -- /usr/sbin/daisydog
+exec chrt -r 99 /sbin/minijail0 -u watchdog -g watchdog -- /usr/sbin/daisydog
