From owner-freebsd-current@freebsd.org Thu Sep 20 18:09:11 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 9442410A4293 for ; Thu, 20 Sep 2018 18:09:11 +0000 (UTC) (envelope-from schmiedgen@gmx.net) Received: from mout.gmx.net (mout.gmx.net [212.227.17.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "mout.gmx.net", Issuer "TeleSec ServerPass DE-2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id DBBCB77525; Thu, 20 Sep 2018 18:09:10 +0000 (UTC) (envelope-from schmiedgen@gmx.net) Received: from [192.168.10.5] ([62.246.110.10]) by mail.gmx.com (mrgmx102 [212.227.17.168]) with ESMTPSA (Nemesis) id 0M51eM-1fsQVs05qo-00zGze; Thu, 20 Sep 2018 20:09:05 +0200 Subject: Re: 12.0-ALPHA6 dumps with 'Fatal double fault' To: Michael Tuexen Cc: freebsd-current@FreeBSD.org References: <00082772-8AA0-415B-A4C5-B8BC8D4D7BFC@freebsd.org> <8be8d63e-6f42-6350-eadb-c417496a1707@gmx.net> <3F80F987-397C-4CF1-9421-BA1AF0376B6C@freebsd.org> From: Michael Schmiedgen Message-ID: Date: Thu, 20 Sep 2018 20:09:01 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.0 MIME-Version: 1.0 In-Reply-To: <3F80F987-397C-4CF1-9421-BA1AF0376B6C@freebsd.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:B2AUyTZ8OrVx2XH2jtYVqn/0F16j7u74s/mcaiq5sxN6yQTgfe6 n13CODdE4+XPns+c3F3vaSxX2qsmGJBplfv6JT/DzBkY6iFbRr6oRQ0s7Mi2a9KP21LLQfY Jz7f1mDdbK7IRUUMa79+OPmYYazKCg+tQQoqrSZeq7LX6ccyV0YC7ectYu/5cCNyfApbNAG 7GhZavBZoQx7gXItEsKUQ== X-UI-Out-Filterresults: notjunk:1;V01:K0:y9hhvw5dYxw=:qiT/h1Z3bXc+6OxT1pyXGz 7ADdGhuRqgCS38XnUIK9ZKrQSEWW0/l1LM/nKvk0HiByPdpV7nIIjq8KIBr6C7VihOOJ+jSrI f3RPBCpEbGtqSn8TJOEMVcjw4umolb3rf3CadP3/X7BYkiGJqCcmgb+nnnfwVOg4LJwVlDVa6 tV8+wDduNesXantQNWPVPZApFeDNYlHwhy0PValuJjCkkeyKocc+BLlAgJAQ2Hr+H/qZkmYB1 VOXwSnSLGFEI2yWev6eHQGx4CA8dv9wVzd7BAl9DuWJ8LpoJx94QzjM6qPEV058I2OFpxdD4c 0cGHreMVar2SOhLO3SQh5bdwGcDNHwBP+sYGZFxq7QYos9lhf/WOyfuM0/68eMKkwDqGYzSUO bwSfVIgSPCL0M7E0+uUYCgPZmHee4JOfuivXS0Wf0/8aBahMQ42nmjvYTui4TDJ7JJgNBn9vh ddCThTJvUBAdttaGu0xutb2hIMFNfDk3qyslbrUIE7MogQdjpU44VYU6c/9ZOgOupEUKVOaHk 1i34i+Rs49JfR1vAlj2Otkt36qCq31G6bETTAx5uAQ/BCgoY0zIy1pYtec3hztH1c65XSYkqp P28o7esSYSNAjd21EpExs8Zs0zOJjHIoNAZkZQL4/pqylZGfFgfH4ctCEfv1GvIFGEMdWJvTW t9+UPJv5iDnc2jOEvaApVjHbR92rlwVoU9cnCIlAPcpmoY67qMwAhap9otTjuXro98LkJ0Pld iKiRBnWOAAV0BwM+k55xE4B663i/YeJGzadfZSXs5YNHEsz8rGguv5lhYplFnJFko822ECqRQ 9/AsO2bWqdcPA28PHEwzaTklppyIfJKH4gGk6Okj12u6pNoilg= 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 18:09:11 -0000 >>>> 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. >> >> 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. I know, this was only some background information. >> 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? From the kernel. I commented out 'options SCTP' and recompiled. >>> 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... >> >> The mentioned commit [2] lies exactly in my SVN update delta. So this could >> be the reason, too(?) >> >> 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... Yes, if time and point in time permits, because that's a production server and I can only mess around with it late night. Michael