This fix a kernel crash building hurd under smp
---
kern/sched_prim.c | 4 ++--
kern/thread.c | 3 ++-
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/kern/sched_prim.c b/kern/sched_prim.c
index 605f7001..c1b809be 100644
--- a/kern/sched_prim.c
+++ b/kern/sched_prim.c
@@ -1272,7 +1272,7 @@ void thread_setrun(
* But first check the last processor it ran on.
*/
processor = th->last_processor;
- if (processor->state == PROCESSOR_IDLE) {
+ if (processor != PROCESSOR_NULL && processor->state ==
PROCESSOR_IDLE) {
processor_lock(processor);
pset_idle_lock();
if ((processor->state == PROCESSOR_IDLE)
@@ -1334,7 +1334,7 @@ void thread_setrun(
* Bound, can only run on bound processor. Have to lock
* processor here because it may not be the current one.
*/
- if (processor->state == PROCESSOR_IDLE) {
+ if (processor != PROCESSOR_NULL && processor->state ==
PROCESSOR_IDLE) {
processor_lock(processor);
pset = processor->processor_set;
pset_idle_lock();
diff --git a/kern/thread.c b/kern/thread.c
index deb9688d..fa6bab72 100644
--- a/kern/thread.c
+++ b/kern/thread.c
@@ -1292,7 +1292,8 @@ thread_dowait(
* should cause the thread to take an ast and
* context switch to suspend for us.
*/
- cause_ast_check(thread->last_processor);
+ if (thread->last_processor != PROCESSOR_NULL)
+ cause_ast_check(thread->last_processor);
#endif /* NCPUS > 1 */
/*
--
2.53.0
