Index: sys/net/pfil.c
===================================================================
RCS file: /cvsroot/src/sys/net/pfil.c,v
retrieving revision 1.32
diff -u -p -r1.32 pfil.c
--- sys/net/pfil.c	16 Jan 2017 09:28:40 -0000	1.32
+++ sys/net/pfil.c	22 Jan 2017 15:57:38 -0000
@@ -384,7 +384,6 @@ pfil_run_hooks(pfil_head_t *ph, struct m
 	pfil_listset_t *phlistset;
 	pfil_list_t *phlist;
 	struct psref psref;
-	int s;
 	int ret = 0;
 
 	KASSERT(dir == PFIL_IN || dir == PFIL_OUT);
@@ -392,7 +391,8 @@ pfil_run_hooks(pfil_head_t *ph, struct m
 		return ret;
 	}
 
-	s = pserialize_read_enter();
+	int bound = curlwp_bind();
+	int s = pserialize_read_enter();
 	phlist = phlistset->active;
 	membar_datadep_consumer();
 	psref_acquire(&psref, &phlist->psref, pfil_psref_class);
@@ -406,6 +406,7 @@ pfil_run_hooks(pfil_head_t *ph, struct m
 			break;
 	}
 	psref_release(&psref, &phlist->psref, pfil_psref_class);
+	curlwp_bindx(bound);
 
 	if (mp) {
 		*mp = m;
@@ -416,12 +417,11 @@ pfil_run_hooks(pfil_head_t *ph, struct m
 static void
 pfil_run_arg(pfil_listset_t *phlistset, u_long cmd, void *arg)
 {
-	pfil_list_t *phlist;
 	struct psref psref;
-	int s;
 
-	s = pserialize_read_enter();
-	phlist = phlistset->active;
+	int bound = curlwp_bind();
+	int s = pserialize_read_enter();
+	pfil_list_t *phlist = phlistset->active;
 	membar_datadep_consumer();
 	psref_acquire(&psref, &phlist->psref, pfil_psref_class);
 	pserialize_read_exit(s);
@@ -431,6 +431,7 @@ pfil_run_arg(pfil_listset_t *phlistset, 
 		(*func)(pfh->pfil_arg, cmd, arg);
 	}
 	psref_release(&psref, &phlist->psref, pfil_psref_class);
+	curlwp_bindx(bound);
 }
 
 void