From owner-freebsd-net@freebsd.org Wed Dec 16 13:14:23 2015 Return-Path: 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 ADEF4A48D43 for ; Wed, 16 Dec 2015 13:14:23 +0000 (UTC) (envelope-from lakshmi.n@msystechnologies.com) Received: from mail-qk0-x22b.google.com (mail-qk0-x22b.google.com [IPv6:2607:f8b0:400d:c09::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 55DE23B86 for ; Wed, 16 Dec 2015 13:14:23 +0000 (UTC) (envelope-from lakshmi.n@msystechnologies.com) Received: by mail-qk0-x22b.google.com with SMTP id u65so42933320qkh.2 for ; Wed, 16 Dec 2015 05:14:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=msystechnologies.com; s=google; h=mime-version:date:message-id:subject:from:to:cc:content-type; bh=GXn7Qkx5ETyg686oFZbecMvXwGDUG0A10lV0VJn7Z+U=; b=Q/OZaLWK7OctT346+TmujobcA81udpS0+wDSrCa+duKUu1uPQ2Oq9yPP7YkQ2Jq3yC K6Ol0VrvV9XNENo1I4YUDbvEE9RDPkQ9DwpORoHHnqikPDgB7yrUI0DLOBnhv6p3jLFR l75IaMH+5LrfrMZgT4f26bejQrLt6a6Yzi4D8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:date:message-id:subject:from:to:cc :content-type; bh=GXn7Qkx5ETyg686oFZbecMvXwGDUG0A10lV0VJn7Z+U=; b=Y1iMTx05uOXYg2xZe6iYtQ7OUfl1rya6Y7Ll/janWgPvov+W2mVcQdCgiy2cw5KYx1 Vgtio6DwhCeLOLBuE7veGeDyBrAP7UtclqcLIxBVK/mgha8eKJC2rhd2bQsRMNMAp0Q8 ZHzAlHG6TJW+e8kYfqFagcJYHgVkVxwoh5BkdyOwNOXfQ3/JZrf7rop7IA1XHff8zr/w uG2dIRlb+bWyh5/eD8iZHitKEF4s6M2Cr+dSCpb52qHcgGJHsbqqwwqGvogXGBnOC75n AI9SoxwDgbbFGRQOBpi0K17dxtnEICOMflu+cNUpA5RS98HPvYSjP5Aco6the2p40KvH O76Q== X-Gm-Message-State: ALoCoQnjMpKubxw2dq18cdqvSrM/Y/Pk45O1vl4bDPdDZ8g/4IHnBSLq6raXa8Ucmffskn1bjOJyA+xWxNvuEb1rr6tNL8rwrk4ZYg9dffswmhxuPmXMiFPy1hg6KxVr0awtrl1BiSE0sWPfhKX3y96iltH5kzfhZQ== MIME-Version: 1.0 X-Received: by 10.129.159.142 with SMTP id w136mr12406842ywg.62.1450269782268; Wed, 16 Dec 2015 04:43:02 -0800 (PST) Received: by 10.37.24.68 with HTTP; Wed, 16 Dec 2015 04:43:02 -0800 (PST) Date: Wed, 16 Dec 2015 18:13:02 +0530 Message-ID: Subject: FreeBSD LAGG port crash From: Lakshmi Narasimhan Sundararajan To: freebsd-net@freebsd.org Cc: hiren panchasara , "Pokala, Ravi" , "Lewis, Fred" , panasas-network Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Dec 2015 13:14:23 -0000 Hi Team, I am seeing a crash with 10.1 stable which is not seen in 11-CURRENT. This is with lagg port operations, the below simple sequence of cmds cause system crash. ifconfig lagg0 create ifconfig lagg0 laggproto failover laggport le0 ifconfig lagg0 /* crash here */ See below for the backtraces. The issue is reproducible in laggproto failover or loadbalance, but not with lacp. Is this a known issue? Is there an MFC to 10.1 STABLE, that is known to fix this issue? Is anyone looking at this currently? Any inputs on this would be much appreciated. Best regards, LN ====================== backtrace snip =============== KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe202122c1e0 kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe202122c290 panic() at panic+0x155/frame 0xfffffe202122c310 trap_fatal() at trap_fatal+0x38f/frame 0xfffffe202122c370 trap_pfault() at trap_pfault+0x308/frame 0xfffffe202122c410 trap() at trap+0x47a/frame 0xfffffe202122c620 calltrap() at calltrap+0x8/frame 0xfffffe202122c620 --- trap 0xc, rip = 0xffffffff80e15991, rsp = 0xfffffe202122c6e0, rbp = 0xfffffe202122c710 --- lacp_portreq() at lacp_portreq+0x11/frame 0xfffffe202122c710 lagg_port2req() at lagg_port2req+0x62/frame 0xfffffe202122c740 lagg_ioctl() at lagg_ioctl+0x2db/frame 0xfffffe202122c820 ifioctl() at ifioctl+0x162b/frame 0xfffffe202122c8e0 kern_ioctl() at kern_ioctl+0x255/frame 0xfffffe202122c950 sys_ioctl() at sys_ioctl+0x13c/frame 0xfffffe202122c9a0 amd64_syscall() at amd64_syscall+0x351/frame 0xfffffe202122cab0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe202122cab0 --- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x8011b5b9a, rsp = 0x7fffffffd8e8, rbp = 0x7fffffffe3a0 --- ================================================ -- DISCLAIMER The information in this e-mail is confidential and may be subject to legal privilege. It is intended solely for the addressee. Access to this e-mail by anyone else is unauthorized. If you have received this communication in error, please address with the subject heading "Received in error," send to it@msystechnologies.com, then delete the e-mail and destroy any copies of it. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. The views, opinions, conclusions and other information expressed in this electronic mail and any attachments are not given or endorsed by the company unless otherwise indicated by an authorized representative independent of this message. MSys cannot guarantee that e-mail communications are secure or error-free, as information could be intercepted, corrupted, amended, lost, destroyed, arrive late or incomplete, or contain viruses, though all reasonable precautions have been taken to ensure no viruses are present in this e-mail. As our company cannot accept responsibility for any loss or damage arising from the use of this e-mail or attachments we recommend that you subject these to your virus checking procedures prior to use