From owner-freebsd-net@FreeBSD.ORG Wed Aug 4 02:30:32 2010 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C3BBD1065676 for ; Wed, 4 Aug 2010 02:30:32 +0000 (UTC) (envelope-from scottj75074@yahoo.com) Received: from web110707.mail.gq1.yahoo.com (web110707.mail.gq1.yahoo.com [67.195.13.214]) by mx1.freebsd.org (Postfix) with SMTP id 78EC58FC14 for ; Wed, 4 Aug 2010 02:30:32 +0000 (UTC) Received: (qmail 21347 invoked by uid 60001); 4 Aug 2010 02:02:30 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1280887350; bh=1nKpkppWCMKdT54mlaGStVX7UvkSk8s9R5GnfilcSB4=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=GSEIwSSplJHmTi/KQdeZjjxAbCq07YTN3KR4fp/7lyvWzOWqPz1NJzVeOTciDUG9O46kYQi9ZKuQgWIBrE/q9+GQW+i43sTULLi3EYoyh0fuqwRTmCWak1dvNvgrqCoId3QWpsuwTOgO1uAgLOpn9pJInXCjWbyuSrnbL9EV2m0= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=IZbaPU5WrLaEpka0VH/zjxZCG45WZgfIVbFE7RYvwjpHgoNBH7pGunefGtO1o9jUSAJNF1uCHG3AXqmG67K1F0xRdtb5AcUSZLOMQ3J4fenqwR2FPr51wvOpCcISHuYXcnAqH8tGOPK5R80WZPLNy3/kfKpJXmmHBPtMMGjmxp4=; Message-ID: <798824.20619.qm@web110707.mail.gq1.yahoo.com> X-YMail-OSG: MS8gk6UVM1lgSIHY0KIarZGYpeCGDMLnGFVyBrqd2kAb.YN dPoNGxc5LAmq7tkH98mMMPafgvgeJDsJy7iMY0kwerV2GZyp.tVeOtQOJa2i COJ19h_dssMCogsnISX.tKZNWMZ3z0nm6WEarFpc3ww9RSIrIStKGSdm7WfJ rWXYSKIupItBxeiIKuZf1rBNk2rCa76hFCj3hdwAXTCY4zkp7dklmYkg2e2n KhdX_H7u2rIt7m2fs7inAwUIMpFZvb9oWerjyGiVWvn5xOuIwz1VC53UdpYy kX3AOUJmkJzQ2DFA8wg_cWX8ju4758b09sITWTky9Fps8ZdXtXC6SWA-- Received: from [24.6.145.200] by web110707.mail.gq1.yahoo.com via HTTP; Tue, 03 Aug 2010 19:02:30 PDT X-Mailer: YahooMailRC/420.4 YahooMailWebService/0.8.105.279950 Date: Tue, 3 Aug 2010 19:02:30 -0700 (PDT) From: Scott Johnson To: freebsd-net@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: 8.1-RELEASE em watchdog timeout broken? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 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, 04 Aug 2010 02:30:32 -0000 Under 8.0-RELEASE I would get warnings from em(4) in /var/log/messages about "watchdog timeouts" on em0 whenever my desktop PC connected to em0 was powered off. This was fine, except for the annoying warnings. Under 8.1-RELEASE I no longer get the warnings, and any time my desktop is powered off, when I turn it back on, it has no connectivity. The interface is dead until I log into the console and run: # ifconfig em0 down up The em(4) driver has changed a lot since 8.0-RELEASE. It seems this watchdog timeout is no longer working. The board is a Supermicro X7SPA-H with Intel 82574L GbE. Any ideas for debugging?