--- src/sys/dev/disk/sbp/sbp.c	2008/02/10 00:01:03	1.27
+++ src/sys/dev/disk/sbp/sbp.c	2008/05/18 20:30:22	1.28
@@ -1885,6 +1885,7 @@ END_DEBUG
 
 	sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
 				 device_get_unit(dev),
+				 &sim_mplock,
 				 /*untagged*/ 1,
 				 /*tagged*/ SBP_QUEUE_LEN - 1,
 				 devq);