- Properly initialize the base priority (td_base_pri) of thread0 to PVM

  to match the desired priority in td_priority.  Otherwise the first time
  thread0 used a borrowed priority it would drop down to PUSER instead of
  PVM.
- Explicitly initialize the starting priority of new kprocs to PVM to
  avoid inheriting some random priority from thread0.

MFC after:	2 weeks

1 files changed, 5 insertions, 4 deletions

diff --git a/sys/kern/kern_kthread.c b/sys/kern/kern_kthread.c
index 679420012aac..95f896fa5aa6 100644
--- a/sys/kern/kern_kthread.c
+++ b/sys/kern/kern_kthread.c
@@ -117,14 +117,15 @@ kproc_create(void (*func)(void *), void *arg,
 
 	/* call the processes' main()... */
 	cpu_set_fork_handler(td, func, arg);
+	thread_lock(td);
 	TD_SET_CAN_RUN(td);
+	sched_prio(td, PVM);
+	sched_user_prio(td, PUSER);
 
 	/* Delay putting it on the run queue until now. */
-	if (!(flags & RFSTOPPED)) {
-		thread_lock(td);
+	if (!(flags & RFSTOPPED))
 		sched_add(td, SRQ_BORING); 
-		thread_unlock(td);
-	}
+	thread_unlock(td);
 
 	return 0;
 }