lockmgr: thread 0xc21e2780 unlocking unheld lock

John Baldwin jhb at freebsd.org
Tue Jul 11 15:02:14 UTC 2006


On Tuesday 11 July 2006 09:29, Jiawei Ye wrote:
> I was doing "sudo mount_smbfs //user at server/share /mnt" when the
> following msg appeared. smbfs.ko was not loaded.

Does building with INVARIANTS fix it?  If so, try this patch (it looks
like it has been broken since 1.1 of the smbfs code):

Index: smb_conn.c
===================================================================
RCS file: /usr/cvs/src/sys/netsmb/smb_conn.c,v
retrieving revision 1.16
diff -u -r1.16 smb_conn.c
--- smb_conn.c	31 Oct 2005 15:41:27 -0000	1.16
+++ smb_conn.c	11 Jul 2006 15:01:10 -0000
@@ -233,7 +233,8 @@
 	lockinit(&cp->co_lock, PZERO, objname, 0, 0);
 	cp->co_level = level;
 	cp->co_usecount = 1;
-	KASSERT(smb_co_lock(cp, LK_EXCLUSIVE, td) == 0, ("smb_co_init: lock 
failed"));
+	if (smb_co_lock(cp, LK_EXCLUSIVE, td) == 0)
+	    panic("smb_co_init: lock failed"));
 }
 
 static void

-- 
John Baldwin


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