git: drm - Fix system lockup bug in signal_pending_state()
Matthew Dillon
dillon at crater.dragonflybsd.org
Mon Jun 17 15:48:36 PDT 2019
commit 536555aba12298470a11fd08ce255f3c62812162
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date: Mon Jun 17 15:45:59 2019 -0700
drm - Fix system lockup bug in signal_pending_state()
* Fix a system lockup bug in signal_pending_state(). It was
possible for the routine to indicate that no signal was pending
for an interruptible state when a signal was in fact pending,
causing a live-lock in a lksleep() loop.
* The proper API is to allow any signal to interrupt when the
thread is in an interruptible state and to only allow a KILL
signal to interrupt when the thread is in a non-interruptible
state.
Testing-by: dillon, tuxillo
Reviewed-by: ftigeot
Summary of changes:
sys/dev/drm/include/linux/sched.h | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/536555aba12298470a11fd08ce255f3c62812162
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