From owner-freebsd-net@freebsd.org Tue Mar 27 19:02:48 2018 Return-Path: Delivered-To: freebsd-net@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 010C6F4F527 for ; Tue, 27 Mar 2018 19:02:48 +0000 (UTC) (envelope-from srs0=711/=gr=sigsegv.be=kristof@codepro.be) Received: from venus.codepro.be (venus.codepro.be [IPv6:2a01:4f8:162:1127::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.codepro.be", Issuer "Gandi Standard SSL CA 2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8EC137AB1B for ; Tue, 27 Mar 2018 19:02:47 +0000 (UTC) (envelope-from srs0=711/=gr=sigsegv.be=kristof@codepro.be) Received: from [10.0.2.164] (ptr-8ripyyhxwudjls5kxi0.18120a2.ip6.access.telenet.be [IPv6:2a02:1811:2419:4e02:e909:7f67:c669:b98]) (Authenticated sender: kp) by venus.codepro.be (Postfix) with ESMTPSA id F343055A14; Tue, 27 Mar 2018 21:02:45 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sigsegv.be; s=mail; t=1522177366; bh=cThe7PPBjNRwjDmu+t5CRMpa80tBLNtkx8xICmhTKKM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=shG6rcrDKDOPXAR2GPiScsEWE4cdoBdqSjNujztEWkTRRypM7LyZ1TDy58veI9pbl +2le6/BpEn9PCC5NZ+ltaG35Hrh6Xt/gQoDuGyVJvzP5oW20a/CPhZ9au54+QuQll4 gXeYryLdbuc0giD0jotFBA9vCbZ+1RFYeb+bywZ4= From: "Kristof Provost" To: "Reshad Patuck" Cc: freebsd-net@freebsd.org, "Bjoern A. Zeeb" , "Reshad Patuck" Subject: Re: [vnet] [epair] epair interface stops working after some time Date: Tue, 27 Mar 2018 21:02:44 +0200 X-Mailer: MailMate (2.0BETAr6106) Message-ID: <277350C5-3B1F-4105-AF0A-886B6133218E@sigsegv.be> In-Reply-To: References: <71B1A1BD-6FCF-47BB-9523-CCAAC03799A5@sigsegv.be> <1563563.7DUcjoHYMp@reshadlaptop.patuck.net> <1D6101CD-BCB4-4206-838B-1A75152ACCC4@sigsegv.be> <38C78C2B-87D2-4225-8F4B-A5EA48BA5D17@patuck.net> <5803CAA2-DC4A-4E49-B715-6DE472088DDD@sigsegv.be> <9CAB4522-0B0A-42BF-B9A4-BF36AFC60286@patuck.net> <7202AFF2-A314-41FE-BD13-C4C77A95E106@sigsegv.be> <2D15ABDE-0C25-4C97-AEA6-0098459A2795@lists.zabbadoz.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Mar 2018 19:02:48 -0000 On 27 Mar 2018, at 20:59, Reshad Patuck wrote: > The current value of 'net.link.epair.netisr_maxqlen' is 2100, I will > make it 210. > Will this require a reboot? or can I just change the sysctl and reload > the epair module? > ​ You shouldn’t need to reboot or reload the epair module. When I set it to 2 on my box it pretty much immediately lost connectivity over the epair interfaces. I’d expect you to get hit by the bug relatively quickly now, so be aware of that. Regards, Kristof