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Date: Thu, 3 Apr 1997 16:50:04 -0800 (PST)
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From: Tor Egge <Tor.Egge@idi.ntnu.no>
Subject: Re: kern/3168: Panic: lockmgr: locking against myself
Reply-To: Tor Egge <Tor.Egge@idi.ntnu.no>
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The following reply was made to PR kern/3168; it has been noted by GNATS.

From: Tor Egge <Tor.Egge@idi.ntnu.no>
To: sysseh@devetir.qld.gov.au
Cc: FreeBSD-gnats-submit@freebsd.org, toor@dyson.iquest.net
Subject: Re: kern/3168: Panic: lockmgr: locking against myself
Date: Fri, 04 Apr 1997 02:42:38 +0200

 > 
 > >Number:         3168
 > >Category:       kern
 > >Synopsis:       Machine crashes when starting X or xdm
 
 I got a similar crash (same stack trace).
 
 How-To-Repeat:
 
 	rm -f bad
 	touch bad
 	chmod 755 bad
 	./bad
 
 Fix:
 
 Index: kern_exec.c
 ===================================================================
 RCS file: /home/ncvs/src/sys/kern/kern_exec.c,v
 retrieving revision 1.53
 diff -c -r1.53 kern_exec.c
 *** kern_exec.c	1997/03/31 11:10:55	1.53
 --- kern_exec.c	1997/04/04 00:09:11
 ***************
 *** 160,167 ****
   	 */
   	error = exec_check_permissions(imgp);
   
 ! 	if (error)
   		goto exec_fail_dealloc;
   
   	/*
   	 * Get the image header, which we define here as meaning the first
 --- 160,169 ----
   	 */
   	error = exec_check_permissions(imgp);
   
 ! 	if (error) {
 ! 		VOP_UNLOCK(imgp->vp, 0, p);
   		goto exec_fail_dealloc;
 + 	}
   
   	/*
   	 * Get the image header, which we define here as meaning the first