From owner-freebsd-current@freebsd.org Thu Sep 20 17:11:30 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 0C70410A2CD0 for ; Thu, 20 Sep 2018 17:11:30 +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 6B96275593; Thu, 20 Sep 2018 17:11:29 +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 0MNf1y-1g959j3fy6-007ASu; Thu, 20 Sep 2018 19:11:25 +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> From: Michael Schmiedgen Message-ID: <8be8d63e-6f42-6350-eadb-c417496a1707@gmx.net> Date: Thu, 20 Sep 2018 19:11:25 +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: <00082772-8AA0-415B-A4C5-B8BC8D4D7BFC@freebsd.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:FFH1Rf27EV7l8aHRyWmpnR1lgUV1AMry2eMkIkpBfmM2AFWCotb fkFAMjnaYALkM9nq/oaIjr2kq1f+rBHCxfZakbt6ee9ebV3fww8snMX+RV64J+IZECu0/b8 1lIEDrOdbPB7wX+e7sJnkYJ0aT78aJrWkhzukI7Zh6seEufL52S2MBOTZLcUzoTL0XDaP+k 1qcOAdpivYEnVJ3jzl/FA== X-UI-Out-Filterresults: notjunk:1;V01:K0:n0SpR7ktq4U=:JVV5kueYmrwhL5e8dJ2Z8u 4uPJ7Hueh7RqLWcr6fLWffDmMnJlYUmrQ7LqXHvN6SPUXsHNtlSoFIA5XsbBy4cOuHXDl4GKC peVkY9QSZvQgY54e3/6IuZKag84u8acJK3xiz5LDnBL59TtQTSDAJV4V30WSEXnsmki5ZAQJr kf5FnFk/VMYP/fhe9qjksC5SK0cmHCfDu44hbLmG16in6Ok0czGErlcQYr60iNP1bYtmDNLDh Lfo/ZoAxYrKwDHIbCPkzwq5TBLaRlvGaSa/ZCU/rFqgomdNSsbWXNb3CPIMgVllJusaDsRRXy dJuo8A9gqcLyO9CePLuJL2syoNTub+X4xMHgN/khPSWJcNksCB1mJOgdw80p30D1ilriorlNy aVdaT7ci2fzXBt+32q1pivAzZcPkhJHt/A4duOHZJkXZf47m8I60p49KgV0rLy9lBru1foqW5 g7fB6wRKLhSvkcmA4eHWZRNbZ0/fcARgTJUk+39TNC7T70a/ZMn1/Uz5Fffo2DuB6Dne697x6 e/KXg9CIPgFSbg7BYDhdC1rKabG8fVQBZs+HOvAPbZ/wsgSzj0/jpu5vITE6HJDMluLK9EM52 o0qYOyfMObmWk3O2+YPCImKgnEomB0FZ3ozZuD6fSwp17IrnhBLwZ7xIGhcUPvFWKWWjwLgcs OZ+raNGxqIX1AJGvPoanQkU3JASSTCEMakRseiDvbCIZchWH5EudMBfnagt4XJT8oOqVe+GTy FsHllT9kYQihLWI7+K6B8RUfBpBmH3OH3xOgaMBnh6Bps045lipdwmiVl0w8f5nX9EUZrwu7L Vwt5SDVOP0R210ju5HIAc5RkhvJQDCXZ7qIdSq+KOrrHY9FLN8= 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 17:11:30 -0000 Hi Michael, many thanks for your help. On 20.09.2018 18:15, Michael Tuexen wrote: >> On 20. Sep 2018, at 17:12, Michael Schmiedgen wrote: >> >> >>> 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. >> >> 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 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. > 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. Thanks again, Michael [1] https://lists.freebsd.org/pipermail/freebsd-current/2014-October/052900.html https://lists.freebsd.org/pipermail/freebsd-stable/2014-December/081192.html [2] https://lists.freebsd.org/pipermail/freebsd-current/2018-September/071283.html