svn commit: r199008 - head/sys/kern

[Attilio Rao]

Author: attilio
Date: Fri Nov  6 22:33:03 2009
New Revision: 199008
URL: http://svn.freebsd.org/changeset/base/199008

Log:
  Save the sack when doing a lockmgr_disown() call.
  
  Requested by:	kib
  MFC:		3 days

Modified:
  head/sys/kern/kern_lock.c

Modified: head/sys/kern/kern_lock.c
==============================================================================
--- head/sys/kern/kern_lock.c	Fri Nov  6 22:29:46 2009	(r199007)
+++ head/sys/kern/kern_lock.c	Fri Nov  6 22:33:03 2009	(r199008)
@@ -1086,6 +1086,7 @@ _lockmgr_disown(struct lock *lk, const c
 	LOCK_LOG_LOCK("XDISOWN", &lk->lock_object, 0, 0, file, line);
 	WITNESS_UNLOCK(&lk->lock_object, LOP_EXCLUSIVE, file, line);
 	TD_LOCKS_DEC(curthread);
+	STACK_SAVE(lk);
 
 	/*
 	 * In order to preserve waiters flags, just spin.