Date: Thu, 3 Apr 1997 16:50:04 -0800 (PST) From: Tor Egge <Tor.Egge@idi.ntnu.no> To: freebsd-bugs Subject: Re: kern/3168: Panic: lockmgr: locking against myself Message-ID: <199704040050.QAA01214@freefall.freebsd.org>
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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
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