From owner-freebsd-stable@FreeBSD.ORG Thu Apr 8 18:20:37 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8370E106567E for ; Thu, 8 Apr 2010 18:20:37 +0000 (UTC) (envelope-from jfvogel@gmail.com) Received: from mail-ww0-f54.google.com (mail-ww0-f54.google.com [74.125.82.54]) by mx1.freebsd.org (Postfix) with ESMTP id 16C438FC1C for ; Thu, 8 Apr 2010 18:20:36 +0000 (UTC) Received: by wwb24 with SMTP id 24so455561wwb.13 for ; Thu, 08 Apr 2010 11:20:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:received:message-id:subject:from:to:cc:content-type; bh=nenoe3OsHUvhGoSKsWzpAZW7Z/zJHo+QQDHFTuFeTmo=; b=eUTZUyr2og17JUNfBuZyXpVZEmeJUJFD3fmIiNYvExX82GQ1Sm6IRFkupZdj5fvV3z bCsubVPqKjhC+y0Zh2TedPhIAgvySyTMgxRXrWTpjTD5PmWaVE5Pd1MYz0WLCIlyU0tR duDGPNI0KiRzp3ZVcj0Q96Q1pYgCz7TP3HLZM= 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=wmlFOsrPeaFW2y8X4rhBGIdz7keo8PW4Kja3vD3Szp2OS/2a7bNBRBZYSd2CFi/vBT B2rDrfWMQ4IocQwuiQS5RT9vmafuTdFtvJYRNV27nD9ZQP/NKU6A7c1cwDkq87tGzQAO 3XJE+vdQE/k1g19b67yUuY5MGEE6Hv2gn7BFk= MIME-Version: 1.0 Received: by 10.216.11.8 with HTTP; Thu, 8 Apr 2010 11:20:35 -0700 (PDT) In-Reply-To: <20100408181741.GI5734@michelle.cdnetworks.com> References: <201004081313.o38DD4JM041821@lava.sentex.ca> <7.1.0.9.0.20100408091756.10652be0@sentex.net> <201004081446.o38EkU7h042296@lava.sentex.ca> <20100408181741.GI5734@michelle.cdnetworks.com> Date: Thu, 8 Apr 2010 11:20:35 -0700 Received: by 10.216.90.4 with SMTP id d4mr226542wef.135.1270750835974; Thu, 08 Apr 2010 11:20:35 -0700 (PDT) Message-ID: From: Jack Vogel To: pyunyh@gmail.com Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-stable@freebsd.org Subject: Re: em driver regression X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 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, 08 Apr 2010 18:20:37 -0000 LOL, what timing :) On Thu, Apr 8, 2010 at 11:17 AM, Pyun YongHyeon wrote: > On Thu, Apr 08, 2010 at 10:46:22AM -0400, Mike Tancsa wrote: > > > > OK, some more data... It seems dhclient is getting upset as well > > since the updated driver > > > > Apr 8 10:28:37 ich10 dhclient[1383]: DHCPDISCOVER on em0 to > > 255.255.255.255 port 67 interval 6 > > Apr 8 10:28:38 ich10 dhclient[1383]: ip length 328 disagrees with > > bytes received 332. > > Apr 8 10:28:38 ich10 dhclient[1383]: accepting packet with data > > after udp payload. > > Apr 8 10:28:38 ich10 dhclient[1383]: DHCPOFFER from 192.168.xx.1 > > Apr 8 10:28:40 ich10 dhclient[1383]: DHCPREQUEST on em0 to > > 255.255.255.255 port 67 > > Apr 8 10:28:40 ich10 dhclient[1383]: ip length 328 disagrees with > > bytes received 332. > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > Try this patch. It should fix the issue. It seems Jack forgot to > strip CRC bytes as old em(4) didn't strip it, probably to > workaround silicon bug of old em(4) controllers. > > It seems there are also TX issues here. The system load is too high > and sometimes system is not responsive while TX is in progress. > Because I initiated TCP bulk transfers, TSO should reduce CPU load > a lot but it didn't so I guess it could also be related watchdog > timeouts you've seen. I'll see what can be done. >