tree 7fd90cf9cdd0b734f013df6bb86f34fdd80c5732
parent c5dd553b9fd069892c9e2de734f4f604e280fa7a
author Anton Vorontsov <anton.vorontsov@linaro.org> 1348522070 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1348692145 -0700

kernel/debug: Mask KGDB NMI upon entry

The new arch callback should manage NMIs that usually cause KGDB to
enter. That is, not all NMIs should be enabled/disabled, but only
those that issue kgdb_handle_exception().

We must mask it as serial-line interrupt can be used as an NMI, so
if the original KGDB-entry cause was say a breakpoint, then every
input to KDB console will cause KGDB to reenter, which we don't want.

Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>