From owner-freebsd-current@FreeBSD.ORG Sun Jul 27 16:33:52 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D0FDC37B404; Sun, 27 Jul 2003 16:33:52 -0700 (PDT) Received: from obsecurity.dyndns.org (adsl-63-207-60-135.dsl.lsan03.pacbell.net [63.207.60.135]) by mx1.FreeBSD.org (Postfix) with ESMTP id EE14F43F93; Sun, 27 Jul 2003 16:33:51 -0700 (PDT) (envelope-from kris@obsecurity.org) Received: from rot13.obsecurity.org (rot13.obsecurity.org [10.0.0.5]) by obsecurity.dyndns.org (Postfix) with ESMTP id B6F3B66BE5; Sun, 27 Jul 2003 16:33:51 -0700 (PDT) Received: by rot13.obsecurity.org (Postfix, from userid 1000) id 8CCA4551; Sun, 27 Jul 2003 16:33:51 -0700 (PDT) Date: Sun, 27 Jul 2003 16:33:51 -0700 From: Kris Kennaway To: current@FreeBSD.org Message-ID: <20030727233351.GB80934@rot13.obsecurity.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="TRYliJ5NKNqkz5bu" Content-Disposition: inline User-Agent: Mutt/1.4.1i cc: alc@FreeBSD.org Subject: LOR with filedesc structure and Giant X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 27 Jul 2003 23:33:53 -0000 --TRYliJ5NKNqkz5bu Content-Type: text/plain; charset=us-ascii Content-Disposition: inline After upgrading last night, one of the package machines found this: lock order reversal 1st 0xc6c1c334 filedesc structure (filedesc structure) @ /a/asami/portbuild/i386/src-client/sys/kern/sys_generic.c:902 2nd 0xc04aa120 Giant (Giant) @ /a/asami/portbuild/i386/src-client/sys/fs/specfs/spec_vnops.c:372 Stack backtrace: backtrace(c043d4af,c04aa120,c0439aa4,c0439aa4,c0434e3d) at backtrace+0x17 witness_lock(c04aa120,8,c0434e3d,174,1bc) at witness_lock+0x672 _mtx_lock_flags(c04aa120,0,c0434e3d,174,c043daba) at _mtx_lock_flags+0xba spec_poll(d8dddaf8,d8dddb18,c02d119c,d8dddaf8,c04939a0) at spec_poll+0x134 spec_vnoperate(d8dddaf8,c04939a0,c520b124,40,c675e300) at spec_vnoperate+0x18 vn_poll(c44c5e14,40,c675e300,c6222d10,c675e300) at vn_poll+0x3c selscan(c6222d10,d8dddb98,d8dddb88,6,4) at selscan+0x13e kern_select(c6222d10,6,bfbff5c0,0,0) at kern_select+0x36f select(c6222d10,d8dddd10,c0455899,3ee,5) at select+0x66 syscall(2f,2f,2f,8055050,bfbff5b8) at syscall+0x273 Xint0x80_syscall() at Xint0x80_syscall+0x1d --- syscall (93), eip = 0x280ccacc, esp = 0x2832eb68, ebp = 0x2832ebc0 --- Debugger("witness_lock") Stopped at Debugger+0x54: xchgl %ebx,in_Debugger.0 Kris --TRYliJ5NKNqkz5bu Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (FreeBSD) iD8DBQE/JGFeWry0BWjoQKURAutnAKDyoAsrvOhfocBStFNQj5XrR4PYfACcC6fS c0rw2gafgz2utUnus+PAeSA= =gpBm -----END PGP SIGNATURE----- --TRYliJ5NKNqkz5bu--