From owner-freebsd-stable@freebsd.org Thu Aug 20 09:57:13 2015 Return-Path: Delivered-To: freebsd-stable@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 5E4659BC53A for ; Thu, 20 Aug 2015 09:57:13 +0000 (UTC) (envelope-from matpockuh@gmail.com) Received: from mail-io0-x22b.google.com (mail-io0-x22b.google.com [IPv6:2607:f8b0:4001:c06::22b]) (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 299601811 for ; Thu, 20 Aug 2015 09:57:13 +0000 (UTC) (envelope-from matpockuh@gmail.com) Received: by iodt126 with SMTP id t126so40128946iod.2 for ; Thu, 20 Aug 2015 02:57:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=s0UKRDJNzQ+YGNzZ9IFDXLw1JFpJrnkJk9w4CW2Sc6w=; b=Jpl9xvi5qNd3DmAzEa8Al4SFhOs8mW5OoVnMHQoyk2cXrWjKkoXImeox70rQVAKLM8 hiR9r/RTsPFm+0QIRBJpF+4MHP8qCROVVCKNFi/jz950YJRT3IL/7rEIneGfLyfy0D4z v8uewxubpbuoTscG3NpBbuGc2PeePzMt6aEWFB9KvInY9l99XoLpy7ZAg+6txGqSJBrK qQUv0fAK1WSXWNj7i2L9M6KAOlVB+5B+EOgSbToECphbMp+sg9h7qTI48VKJZ/QW1/Mx gZbKb3wbex3KLOw8+rDreP1jsQZ2GvPfbERQIvurRaqoHlDI0mEbbeOt4wFB1eVe71zH 8xRQ== MIME-Version: 1.0 X-Received: by 10.107.14.141 with SMTP id 135mr1560191ioo.49.1440064632520; Thu, 20 Aug 2015 02:57:12 -0700 (PDT) Received: by 10.79.38.3 with HTTP; Thu, 20 Aug 2015 02:57:12 -0700 (PDT) Date: Thu, 20 Aug 2015 12:57:12 +0300 Message-ID: Subject: Silent data corruption on em(4) interfaces From: KOT MATPOCKuH To: freebsd-stable@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Aug 2015 09:57:13 -0000 Hello! I got silent data corruption when transferring data via em(4) interface on 10.2-STABLE r286912. 1. I got broken large file transferred via ftp (MD5 checksum mismatched); 2. I got disconnects when transferring large data via ssh with messages: Corrupted MAC on input. Disconnecting: Packet corrupt Problem occurs only after few hours of uptime. Immediately after reboot I transferred same file via ftp without any errors. I tried to use: - em0 and em2 interfaces in link aggregation - em1 as "clean" interface But I got same problem in both cases. Also one time when transferring file I got this messages: em0: Interface stopped DISTRIBUTING, possible flapping em0: Watchdog timeout -- resetting em2: Interface stopped DISTRIBUTING, possible flapping em2: Watchdog timeout -- resetting netstat -in does not see any problems: Name Mtu Network Address Ipkts Ierrs Idrop Opkts Oerrs Coll em0 1500 00:14:4f:01:3f:7a 6689452 0 0 146720 0 0 em1 1500 00:14:4f:01:3f:7b 5732168 0 0 2865912 0 0 em2 1500 00:14:4f:01:3f:7c 501817 0 0 3392333 0 0 Network adapters is build in to the Sun Fire X4100 mother board: em0@pci0:1:1:0: class=0x020000 card=0x10118086 chip=0x10108086 rev=0x03 hdr=0x00 vendor = 'Intel Corporation' device = '82546EB Gigabit Ethernet Controller (Copper)' class = network subclass = ethernet TCP_OFFLOAD disabled in kernel's config. Any ideas? -- MATPOCKuH