From owner-freebsd-net@FreeBSD.ORG Fri Dec 21 16:08:14 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 383EF2FF for ; Fri, 21 Dec 2012 16:08:14 +0000 (UTC) (envelope-from rysto32@gmail.com) Received: from mail-vc0-f182.google.com (mail-vc0-f182.google.com [209.85.220.182]) by mx1.freebsd.org (Postfix) with ESMTP id D16008FC14 for ; Fri, 21 Dec 2012 16:08:13 +0000 (UTC) Received: by mail-vc0-f182.google.com with SMTP id fy27so5318684vcb.13 for ; Fri, 21 Dec 2012 08:08:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=nyNmHDcvP6qbvA9F/3PUzX8lWBlzPcS2NzuXUVatbGg=; b=B+IKUENp/85YfG57cQFk34dbVkrT0lDZ7LF2ahAhSz204bCY69TreJCUsL575k2NDk 2prEHNfnyCyS2lF7OwdoWrrZgRGZWtUjHUVM7X3ZCGuWao3qQAvkxw3O3Q8LH2BQGxH+ 8Cx2SK4ENfnegUHvBFjJ2UH2I/U0V+fgrMW6TrlhQTzjtgtaGU1J3N505KRaLTZi6m6X spuAKG3U7Ae4nMYO14xr2GeR2Iyd/ZV4vI0EZxFT/DpJ19Cgnh4kpGRYQ/4Nm7hTAEBb qKqtB21ZNEVOZqI0APz7f3/HTrdv9t5pzBmfsJQqYk91iFdegB07UIm0wrg3P6vxX4Br Z1eg== MIME-Version: 1.0 Received: by 10.220.240.141 with SMTP id la13mr20395692vcb.39.1356106087239; Fri, 21 Dec 2012 08:08:07 -0800 (PST) Received: by 10.58.161.83 with HTTP; Fri, 21 Dec 2012 08:08:07 -0800 (PST) In-Reply-To: <50D45282.5080708@extrim.it> References: <50D45282.5080708@extrim.it> Date: Fri, 21 Dec 2012 11:08:07 -0500 Message-ID: Subject: Re: 'no buffer space available' after switch goes down on freeBSD 7.3 From: Ryan Stone To: Tsaregorodtsev Denis Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: freebsd-net X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Dec 2012 16:08:14 -0000 On Fri, Dec 21, 2012 at 7:13 AM, Tsaregorodtsev Denis wrote: > Hello, > > I maintenance ISP's DNS server which works under FreeBSD 7.3 and BIND > 9.9.1-P4. The network adapter is Intel(R) PRO/1000 Network Connection, > driver - em. The server is connected to a Cisco 6500 switch. Sometimes the > switch goes down (for maintenance) and is unavailable for 10 minutes. After > the switch goes up the server is still unavailable through IP. When I open > an IPMI console on the server and enter the ping command, I receive "no > buffer space available" error message. And the network doesn't work until > the server reboot. > I tried to google this and found that the problem can be solved by > increasing nmbclusters parameter. But I want to understand why this problem > appears when the switch is rebooting . May be you can suggest something? > > Best regards, Tsaregorodtsev Denis > > ______________________________**_________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/**mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@**freebsd.org > " > Do you have a non-production machine you can test with? Can you confirm that the follow (compile-tested only) patch of 7.3 resolves the issue: http://people.freebsd.org/~rstone/patches/e1000_link.diff