From owner-freebsd-stable@freebsd.org Fri Aug 3 21:17:10 2018 Return-Path: Delivered-To: freebsd-stable@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 6596B10513BD for ; Fri, 3 Aug 2018 21:17:10 +0000 (UTC) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id BB84875AE7 for ; Fri, 3 Aug 2018 21:17:09 +0000 (UTC) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: by mailman.ysv.freebsd.org (Postfix) id 802D010513BC; Fri, 3 Aug 2018 21:17:09 +0000 (UTC) Delivered-To: stable@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 6EF7810513BB for ; Fri, 3 Aug 2018 21:17:09 +0000 (UTC) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: from mx1.sbone.de (bird.sbone.de [46.4.1.90]) (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 CF3A375AE6 for ; Fri, 3 Aug 2018 21:17:08 +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 1BBF125D37D1; Fri, 3 Aug 2018 21:17:07 +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 425ABD1F840; Fri, 3 Aug 2018 21:17:06 +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 fFSVeUzHJrJs; Fri, 3 Aug 2018 21:17:05 +0000 (UTC) Received: from [192.168.124.1] (unknown [IPv6:fde9:577b:c1a9:31:2ef0:eeff:fe03:ee34]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sbone.de (Postfix) with ESMTPSA id E36EFD1F81A; Fri, 3 Aug 2018 21:17:04 +0000 (UTC) From: "Bjoern A. Zeeb" To: "Oliver Pinter" Cc: stable@freebsd.org Subject: Re: VNET related kernel panic on jail startup with epairs on 11-STABLE Date: Fri, 03 Aug 2018 21:17:03 +0000 X-Mailer: MailMate (2.0BETAr6116) Message-ID: <20AA7D33-904F-494B-830F-59E09DC267E5@lists.zabbadoz.net> In-Reply-To: References: <5428C6C5-5627-44DD-A4ED-AF28A305C4F4@lists.zabbadoz.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 03 Aug 2018 21:17:10 -0000 On 3 Aug 2018, at 20:42, Oliver Pinter wrote: > On 8/3/18, Bjoern A. Zeeb wrote: >> On 3 Aug 2018, at 18:48, Oliver Pinter wrote: >> >>> Hi all! >>> >>> One of out users observed an VNET related kernel panic with epairs >>> in >>> a jail. Seems like some of the >> >> Well would be great for a start to (a) email virtualisation@ as well, >> (b) include a panic message, backtrace or other related information >> to >> deduce anything about the possible bug, (c) and not to conflate it >> with >> another totally unrelated MFC request. >> >> So what makes you think it’s related to tcp fast open? > > Every required detail is in HardenedBSD's github issue, but I copy the > kernel panic here: Ah sorry my bad; the issue said ZFS in the subject and I thought it refers to something else. Thanks! Looking at the backtrace it seems it is happening on teardown and not on startup but indeed in the fast open code and that PR 216613 indeed fixed this in head, good :) Hope Patrick will do the mfc for you. /bz