Index: head/sys/kern/kern_resource.c
===================================================================
--- head/sys/kern/kern_resource.c
+++ head/sys/kern/kern_resource.c
@@ -315,8 +315,7 @@
 		td1 = td;
 		PROC_LOCK(p);
 	} else {
-		/* Only look up thread in current process */
-		td1 = tdfind(uap->lwpid, curproc->p_pid);
+		td1 = tdfind(uap->lwpid, -1);
 		if (td1 == NULL)
 			return (ESRCH);
 		p = td1->td_proc;