This command disables NMI-entry. If NMI source has been previously shared
with a serial console ("debug port"), this effectively releases the port
from KDB exclusive use, and makes the console available for normal use.
Of course, NMI can be reenabled, enable_nmi modparam is used for that:
echo 1 > /sys/module/kdb/parameters/enable_nmi
Signed-off-by: Anton Vorontsov <firstname.lastname@example.org>
Acked-by: Jason Wessel <email@example.com>
Signed-off-by: Greg Kroah-Hartman <firstname.lastname@example.org>