From owner-freebsd-net@FreeBSD.ORG Fri Sep 17 17:42:10 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 1CD2D1065673; Fri, 17 Sep 2010 17:42:10 +0000 (UTC) (envelope-from jfvogel@gmail.com) Received: from mail-wy0-f182.google.com (mail-wy0-f182.google.com [74.125.82.182]) by mx1.freebsd.org (Postfix) with ESMTP id 7EAC58FC12; Fri, 17 Sep 2010 17:42:09 +0000 (UTC) Received: by wyb33 with SMTP id 33so3511683wyb.13 for ; Fri, 17 Sep 2010 10:42:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=jhq8E6Qy+pA0QsHQHFbggxOLGHjR/O4PSuvNZbOiY3k=; b=dPvZnNOdrbitsprFzMVTwAoL5I3QC+w+aWCV3TD8RTWxuDPFkZ/LvJTNG3Z9yUyevA rbsucP9I5F7H2gHvGyV2Cge+JmUkR9aqTpfB0bNyRz5nPeVSsKslFp7nMESQwMxlmbJE D/VsxDGh0v1jjm0BeS+XSD8A+lAoF0ytRPE7w= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=trdFIavL38JM1aBLCOhP6nbTokE/h882oC+Ibh3ZG+O7SFHqkNWpm3ub9V0dR+Qz1L BRzYRSZjcUh8so0kapQtQmo40wewmXXoaCsPKnDy3E4GjrjQsbvAVGkmrEypZAUXhbAG avOGIoLfKLbVmRdaZC8+ErVkeHRBLDhsiEakI= MIME-Version: 1.0 Received: by 10.216.10.5 with SMTP id 5mr4462143weu.81.1284745328326; Fri, 17 Sep 2010 10:42:08 -0700 (PDT) Received: by 10.216.48.20 with HTTP; Fri, 17 Sep 2010 10:42:08 -0700 (PDT) In-Reply-To: <4C93A762.40305@delphij.net> References: <4C93A762.40305@delphij.net> Date: Fri, 17 Sep 2010 10:42:08 -0700 Message-ID: From: Jack Vogel To: d@delphij.net Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: jfv@freebsd.org, "freebsd-net@freebsd.org" Subject: Re: em(4): discard frame w/o packet header (82547L on Supermicro X7SPA-H) on stable/8 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: Fri, 17 Sep 2010 17:42:10 -0000 Put DDB/KDB into the kernel and get me the stack trace when this problem happens. Tell me exactly what the hardware is (pciconf). Jack On Fri, Sep 17, 2010 at 10:37 AM, Xin LI wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > Hi, > > I have got a bit of em0: discard frame w/o packet header (and sometimes > em1) and the system panics sometimes, the network traffic is not quite > large. This is fairly fresh stable/8 running under amd64, with pf, > altq, openvpn (tun mode) and ipv6 enabled. > > So far I haven't found a way to reliably trigger the panic though. > Because of the watchdog (the system is now on production) setting the > system doesn't seem to be able to complete a minidump, will try textdump > and see if it works. > > Suggestion on debugging? Is this a known (fixed?) issue by the way? > > Cheers, > - -- > Xin LI http://www.delphij.net/ > FreeBSD - The Power to Serve! Live free or die > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.16 (FreeBSD) > > iQEcBAEBCAAGBQJMk6dhAAoJEATO+BI/yjfBDCUH/jJNsvmePB4Onq7rSgXvgJEu > 556TFvobXiztiURW6imiis4OlfWS0wclRLuweCSxxkZpgpmUW7smNnXST/1i8njZ > eGeSdQItTlJCV0Za6xVSzwLlOlWdbdQZ4uf1LxABbhBoRaSDXAmAp+7Zw4QyYiiN > YdcEyCHcc8ko4a7H7dq+W01VVaMyyHUr8W6n+V7edXmMaQt2pMuZtMq4sIfe2Zlh > rS56YqfIFBPCtQT7ywZfPhDmYwjatzhzjFfiwVOjCnn2eCSLw7ao0eRnHSv1IAgF > atjD08QUi2XY1zHR4L+OB5n/5lnSfJdaiN1x/sbRx7a3VEBvF3MWyehA+dwgETo= > =irb7 > -----END PGP SIGNATURE----- >