From owner-freebsd-current@freebsd.org Thu Sep 20 17:27:44 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 59B8910A325C for ; Thu, 20 Sep 2018 17:27:44 +0000 (UTC) (envelope-from tuexen@freebsd.org) Received: from drew.franken.de (drew.ipv6.franken.de [IPv6:2001:638:a02:a001:20e:cff:fe4a:feaa]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "COMODO RSA Domain Validation Secure Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id EC2BD75D88 for ; Thu, 20 Sep 2018 17:27:43 +0000 (UTC) (envelope-from tuexen@freebsd.org) Received: from [192.168.1.9] (p57BB4525.dip0.t-ipconnect.de [87.187.69.37]) (Authenticated sender: macmic) by mail-n.franken.de (Postfix) with ESMTPSA id DAA81721E280D; Thu, 20 Sep 2018 19:27:39 +0200 (CEST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) Subject: Re: 12.0-ALPHA6 dumps with 'Fatal double fault' From: Michael Tuexen In-Reply-To: <8be8d63e-6f42-6350-eadb-c417496a1707@gmx.net> Date: Thu, 20 Sep 2018 19:27:38 +0200 Cc: freebsd-current@FreeBSD.org Content-Transfer-Encoding: quoted-printable Message-Id: <3F80F987-397C-4CF1-9421-BA1AF0376B6C@freebsd.org> References: <00082772-8AA0-415B-A4C5-B8BC8D4D7BFC@freebsd.org> <8be8d63e-6f42-6350-eadb-c417496a1707@gmx.net> To: Michael Schmiedgen X-Mailer: Apple Mail (2.3445.9.1) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.27 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: Thu, 20 Sep 2018 17:27:44 -0000 > On 20. Sep 2018, at 19:11, Michael Schmiedgen = wrote: >=20 > Hi Michael, >=20 > many thanks for your help. >=20 >=20 > On 20.09.2018 18:15, Michael Tuexen wrote: >>> On 20. Sep 2018, at 17:12, Michael Schmiedgen = wrote: >>>=20 >>>=20 >>>> Can you elaborate which port was triggering the fault and which = platform you are using? >>>> I would like to reproduce the issue and fix it. >>>=20 >>> Port is devel/apr1 and platform is amd64. >> Works fine on my side. It would be helpful if you could build a = kernel with >> debug symbols, reproduce the problem and provide a stack strace. >=20 > Unfortunately I cannot. It is a production machine without debug that = does not > like to run on 11.1 OR 11.2 for some strange reason [1]. And I really = do not I'm not referring to 11.1 or 11.2. Just the kernel you use with debug = symbols. > want to run it on 11.0 anymore. Perhaps it is some crappy hardware = from our > hoster, I don't know. Anyway, after minimal-updating SVN to = very-latest and > removing SCTP it behaves just fine under load. Removing SCTP means removing it from the kernel or disabling it in the = port? >=20 >=20 >> Since you said that it crashed multiple times makes me wonder if this = problem >> is related to SCTP in particular or if there is some other generic = issue... >=20 > The mentioned commit [2] lies exactly in my SVN update delta. So this = could > be the reason, too(?) >=20 > Sadly I am to busy right now to investigate further, sorry. OK. If you have some spare time, enable SCTP again and see if the = problem is related to it... Best regards Michael >=20 > Thanks again, > Michael >=20 >=20 >=20 > [1] > = https://lists.freebsd.org/pipermail/freebsd-current/2014-October/052900.ht= ml > = https://lists.freebsd.org/pipermail/freebsd-stable/2014-December/081192.ht= ml >=20 > [2] > = https://lists.freebsd.org/pipermail/freebsd-current/2018-September/071283.= html