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From: Edward Tomasz Napierala <trasz@FreeBSD.org>
Date: Thu, 24 May 2012 11:43:33 +0000 (UTC)
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Subject: svn commit: r235900 - stable/9/sys/kern
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Author: trasz
Date: Thu May 24 11:43:33 2012
New Revision: 235900
URL: http://svn.freebsd.org/changeset/base/235900

Log:
  MFC r234381:
  
  Fix panic, triggered like this: "int main() { thr_exit(); }"

Modified:
  stable/9/sys/kern/kern_thr.c
Directory Properties:
  stable/9/sys/   (props changed)

Modified: stable/9/sys/kern/kern_thr.c
==============================================================================
--- stable/9/sys/kern/kern_thr.c	Thu May 24 11:24:44 2012	(r235899)
+++ stable/9/sys/kern/kern_thr.c	Thu May 24 11:43:33 2012	(r235900)
@@ -316,13 +316,13 @@ sys_thr_exit(struct thread *td, struct t
 	rw_wlock(&tidhash_lock);
 
 	PROC_LOCK(p);
-	racct_sub(p, RACCT_NTHR, 1);
 
 	/*
 	 * Shutting down last thread in the proc.  This will actually
 	 * call exit() in the trampoline when it returns.
 	 */
 	if (p->p_numthreads != 1) {
+		racct_sub(p, RACCT_NTHR, 1);
 		LIST_REMOVE(td, td_hash);
 		rw_wunlock(&tidhash_lock);
 		tdsigcleanup(td);