Date: Fri, 24 Mar 2017 20:14:57 -0500 From: "Mike Karels" <mike@karels.net> To: "Andrey V. Elsukov" <bu7cher@yandex.ru> Cc: "Alexander V. Chernikov" <melifaro@freebsd.org>, freebsd-net@FreeBSD.org, "George Neville-Neil" <gnn@freebsd.org>, "Olivier =?utf-8?q?Cochard-Labb=C3=A9?=" <olivier@cochard.me>, "Eugene Grosbein" <eugen@freebsd.org>, karels@FreeBSD.org Subject: Re: LLE reference leak in the L2 cache Message-ID: <D86A2A16-9406-4E11-90EA-3513F37827BE@karels.net> In-Reply-To: <18768a71-3169-469a-f3c3-b9c9e544ff6b@yandex.ru> References: <201703140840.v2E8ecH2040827@mail.karels.net> <3a4c5d87-d42e-5615-5d2b-2a8801376600@yandex.ru> <70D2287B-664C-48E4-9E8B-68B574BE6CE6@karels.net> <FC62E82D-4019-4FF8-8EAD-87CC4A369755@karels.net> <18768a71-3169-469a-f3c3-b9c9e544ff6b@yandex.ru>
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On 23 Mar 2017, at 9:02, Andrey V. Elsukov wrote: > On 20.03.2017 03:46, Mike Karels wrote: >> The context has gotten messy here, so I=E2=80=99m going to break down = and=20 >> top-post. >> >> I started review https://reviews.freebsd.org/D10059 with a fix for=20 >> the >> reference-count leak. >> It changes the semantics so only routes within an in_pcb=20 >> automatically >> do L2 caching. >> >> I=E2=80=99ll put the tcp_output change for V6 in a separate review whe= n=20 >> this one >> is done. >> >> Andrey, could you try your iperf test again? Thanks, > > Hi Mike, > > The test with IPv6 works without reference leak now, as supposed, > because it doesn't use LLE cache :) > For IPv4 forwarding the problem seems also fixed, but I did only basic > test. > > --=20 > WBR, Andrey V. Elsukov Thanks, Andrey! Mike From owner-freebsd-net@freebsd.org Sat Mar 25 01:33:42 2017 Return-Path: <owner-freebsd-net@freebsd.org> Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 73639D1CA5D for <freebsd-net@mailman.ysv.freebsd.org>; Sat, 25 Mar 2017 01:33:42 +0000 (UTC) (envelope-from woodsb02@gmail.com) Received: from mail-wr0-x231.google.com (mail-wr0-x231.google.com [IPv6:2a00:1450:400c:c0c::231]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 0C7651840 for <freebsd-net@freebsd.org>; Sat, 25 Mar 2017 01:33:42 +0000 (UTC) (envelope-from woodsb02@gmail.com) Received: by mail-wr0-x231.google.com with SMTP id y90so3376127wrb.0 for <freebsd-net@freebsd.org>; Fri, 24 Mar 2017 18:33:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=IpV+kBmPWVH6NAMXcRtXqA49GiM84NP25YhiFx54kTc=; b=uuoNG7sC01vkzR1Se3m+8b5nOae0xmJ3Vc50rruqeSSCvl7pMIW0zHHoyVGBaEXWat upaAPpev+PyymX6UkdJSRJU7WZbrnRTUpxZ/QYYKc89aBzy4W9cgiV4TYAI0XolM+5pA e9pyZ7wVkqAL0YbNF+r/y03Yt5gbOkTfff+5NWjAj6UjiWDi7YGPi5yS+l1jZ3Q+V4QW EOxpC2736T6v+X6bIrfZHpztajwSQL5FMPCVnkIewesvFvQVMfIDccrk7604rfGm2KeN NCRdA+M17gkouckUPiQnGu/MATFmHqP8z1xTAuIGuBdCsan8GQB/RmuWg75r9K7Lg1tn 5vmQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=IpV+kBmPWVH6NAMXcRtXqA49GiM84NP25YhiFx54kTc=; b=pSynEtrM/xWedNUZ4amiB5u8mgCQ50orbLLppiedTzmLonJgnwqiHh1JAxF2Kkl7yY qzEiPppglH0we6f6d3FuF8K1cQM9gMARLrNcDNFSqG1A3jHD5c6MxbTI5xtCLMVSnRtW QGvxPHt2jIhdfcp/IrtOYR3jsY+GIiZ04mVUTfv4H4azDTPlyC25HPfM633q5Qp3f1mD XfIcYkRukeJkv1aou2SzKf3K8uww8MvKvxCg8VUyZxXf1BUCTi55R5dXQ1/EhHZHf8NB KpLvl6WXAWGdxCamL7o4oq7WkNRW9bwkA1QFYPtYK/jCwh5i9uNiZ/C+tlreLMOS+ye5 u7Sw== X-Gm-Message-State: AFeK/H3CQFj2fS1NphFwPzAD2UfGZf1Svq5UugGWNm/3otENgRZVRM6VmjtH7A1duX06GQdC/ELKYYhJrul4bg== X-Received: by 10.223.164.16 with SMTP id d16mr9951779wra.47.1490405619537; Fri, 24 Mar 2017 18:33:39 -0700 (PDT) MIME-Version: 1.0 Received: by 10.80.178.97 with HTTP; Fri, 24 Mar 2017 18:33:39 -0700 (PDT) From: Ben Woods <woodsb02@gmail.com> Date: Sat, 25 Mar 2017 09:33:39 +0800 Message-ID: <CAOc73CCJNUMPosg7grrgJVcGX1W8N9fz1kvEkaC3NtfR-Y_cmg@mail.gmail.com> Subject: interface down, console output: igb3: TX(7) desc avail = 41, pidx = 308 To: freebsd-net <freebsd-net@freebsd.org> Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-net>, <mailto:freebsd-net-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net/>; List-Post: <mailto:freebsd-net@freebsd.org> List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-net>, <mailto:freebsd-net-request@freebsd.org?subject=subscribe> X-List-Received-Date: Sat, 25 Mar 2017 01:33:42 -0000 Morning! Since my recent update from FreeBSD12-current r313908 to r315466, I have noticed some strange behaviour with one of my network interfaces. The interface seems to work fine for a day or so, but on a number of occasions I have found it to be down, and constantly outputting the following message to the console every few seconds: igb3: TX(7) desc avail = 41, pidx = 308 igb3: TX(7) desc avail = 41, pidx = 308 igb3: TX(7) desc avail = 41, pidx = 308 ... The problem is quickly worked around by issuing the following commands: # service netif stop igb3 # service netif start igb3 Details of this particular network interface card: $ pciconf -lv | grep igb3 -A4 igb3@pci0:0:20:1: class=0x020000 card=0x1f418086 chip=0x1f418086 rev=0x03 hdr=0x00 vendor = 'Intel Corporation' device = 'Ethernet Connection I354' class = network subclass = ethernet Any ideas what this could be, or how to investigate further? Regards, Ben -- From: Benjamin Woods woodsb02@gmail.com
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