- Split the run queue and sleep queue linkage, so that a process

may block on a mutex while on the sleep queue without corrupting
it.
- Move dropping of Giant to after the acquire of sched_lock.

Tested by:	John Hay <jhay@icomtek.csir.co.za>
		jhb

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/alpha/alpha/trap.c b/sys/alpha/alpha/trap.c
index a387910..50a386d 100644
--- a/sys/alpha/alpha/trap.c
+++ b/sys/alpha/alpha/trap.c
@@ -120,8 +120,8 @@ userret(p, pc, oticks, have_giant)
 		 * indicated by our priority.
 		 */
 		s = splstatclock();
-		DROP_GIANT_NOSWITCH();
 		mtx_enter(&sched_lock, MTX_SPIN);
+		DROP_GIANT_NOSWITCH();
 		setrunqueue(p);
 		p->p_stats->p_ru.ru_nivcsw++;
 		mi_switch();