915 ill_taskq_dispatch() race condition
        (originally Joyent OS-119 panic from mutex_vector_exit)

@@ -20,10 +20,11 @@
  */
 
 /*
  * Copyright (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 1990 Mentat Inc.
+ * Copyright (c) 2011 Joyent, Inc. All rights reserved.
  */
 
 #include <sys/types.h>
 #include <sys/stream.h>
 #include <sys/dlpi.h>

@@ -4644,14 +4645,14 @@
         ipobs_init(ipst);
 
         /*
          * Create the taskq dispatcher thread and initialize related stuff.
          */
-        ipst->ips_capab_taskq_thread = thread_create(NULL, 0,
-            ill_taskq_dispatch, ipst, 0, &p0, TS_RUN, minclsyspri);
         mutex_init(&ipst->ips_capab_taskq_lock, NULL, MUTEX_DEFAULT, NULL);
         cv_init(&ipst->ips_capab_taskq_cv, NULL, CV_DEFAULT, NULL);
+        ipst->ips_capab_taskq_thread = thread_create(NULL, 0,
+            ill_taskq_dispatch, ipst, 0, &p0, TS_RUN, minclsyspri);
 
         major = mod_name_to_major(INET_NAME);
         (void) ldi_ident_from_major(major, &ipst->ips_ldi_ident);
         return (ipst);
 }