From owner-freebsd-current@freebsd.org Mon May 16 07:44:57 2016 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4C063B3D079 for ; Mon, 16 May 2016 07:44:57 +0000 (UTC) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: from mx1.sbone.de (mx1.sbone.de [IPv6:2a01:4f8:130:3ffc::401:25]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mx1.sbone.de", Issuer "SBone.DE" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 11B501AC5 for ; Mon, 16 May 2016 07:44:56 +0000 (UTC) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: from mail.sbone.de (mail.sbone.de [IPv6:fde9:577b:c1a9:31::2013:587]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by mx1.sbone.de (Postfix) with ESMTPS id 767F725D3A8F; Mon, 16 May 2016 07:44:54 +0000 (UTC) Received: from content-filter.sbone.de (content-filter.sbone.de [IPv6:fde9:577b:c1a9:31::2013:2742]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sbone.de (Postfix) with ESMTPS id BEFCFD1F8A7; Mon, 16 May 2016 07:44:53 +0000 (UTC) X-Virus-Scanned: amavisd-new at sbone.de Received: from mail.sbone.de ([IPv6:fde9:577b:c1a9:31::2013:587]) by content-filter.sbone.de (content-filter.sbone.de [fde9:577b:c1a9:31::2013:2742]) (amavisd-new, port 10024) with ESMTP id F3GIfYkBU3mR; Mon, 16 May 2016 07:44:52 +0000 (UTC) Received: from [IPv6:fde9:577b:c1a9:4410:50f4:9329:a995:3c2a] (unknown [IPv6:fde9:577b:c1a9:4410:50f4:9329:a995:3c2a]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sbone.de (Postfix) with ESMTPSA id A8E0AD1F8A5; Mon, 16 May 2016 07:44:51 +0000 (UTC) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Subject: Re: Lock order reversal errors during boot From: "Bjoern A. Zeeb" In-Reply-To: <20160515074404.GF15034@home.opsec.eu> Date: Mon, 16 May 2016 07:44:32 +0000 Cc: Will Brokenbourgh , freebsd-current@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: References: <6b965a16-a6c7-a063-3c2a-7c577c2f9b56@yahoo.com> <20160515074404.GF15034@home.opsec.eu> To: Kurt Jaeger X-Mailer: Apple Mail (2.3124) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.22 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: Mon, 16 May 2016 07:44:57 -0000 > On 15 May 2016, at 07:44 , Kurt Jaeger wrote: >=20 > Hi! >=20 >> I am seeing 'lock order reversal' errors during boot on 11-CURRENT -=20= >> r298793. A sample error: >>=20 >> lock order reversal: >> 1st 0xfffff8011280d068 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2498 >> 2nd 0xfffffe01ca539400 bufwait (bufwait) @=20 >> /usr/src/sys/ufs/ffs/ffs_vnops.c:263 >> 3rd 0xfffff80112a23b78 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2498 >> stack backtrace: >> #0 0xffffffff80a94bf0 at witness_debugger+0x70 >> #1 0xffffffff80a94ae4 at witness_checkorder+0xe54 >> #2 0xffffffff80a0fdd6 at __lockmgr_args+0x4d6 >> #3 0xffffffff80ce9626 at ffs_lock+0xa6 >> [...snip...] >>=20 >> I'm not sure if this is even something I should report, but better = safe=20 >> than sorry, yes? >=20 > Yes, and there's even a page to compare your LOR against other ones: >=20 > http://sources.zabbadoz.net/freebsd/lor.html >=20 > Can you try if you find your LOR there ? If not, can you add it > to that page ? No he can=E2=80=99t and I haven=E2=80=99t in years either. Searching = bugs might however be a good idea; there is a LOR category or tag = somewhere. /bz