From owner-freebsd-stable@FreeBSD.ORG Fri Apr 16 20:53:36 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 A26C1106564A; Fri, 16 Apr 2010 20:53:36 +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 085EB8FC19; Fri, 16 Apr 2010 20:53:35 +0000 (UTC) Received: by wwa36 with SMTP id 36so1880865wwa.13 for ; Fri, 16 Apr 2010 13:53:35 -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=lTHjRo5DQx2mpq+sJFZKUgIBVNELVhmww6vNszmyCCc=; b=nPBRRD9MAQZQIt7+NRMafw2FZCkjieC5Oatav1+2qQH6Cb7nsdGjPyxyR6G11PjB/B Drfc2mSXkzi9hAWEcR77H7uM/hWc8KsS5dgYvrDXNhw6vRijHlFFyA5A9TbNJcsavqkE o27Fa2qJ7y6TmQjSSBruL1Yfp8HAdeEO1VKxo= 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=tmo42C2PBfMhZL5Jikmp/U5DTdgNwLR7uULwrQTsrWUtDrk0Jk5RSmCrsNdU/Ut436 Gjw9e1k3r8IIeLUSnZ7dJRyY/mHbJf2b4mMpNfCcULzZ9/5J75xdjSQMHhJw/H44CAbi RopDc8GSw9PStnF+gMSdaxbke2GW+ZAojEfT0= MIME-Version: 1.0 Received: by 10.216.11.8 with HTTP; Fri, 16 Apr 2010 13:53:34 -0700 (PDT) In-Reply-To: <4BC8CB9E.8060802@omnilan.de> References: <4BC82B80.3070108@omnilan.de> <20100416092803.GA17526@icarus.home.lan> <4BC82FF7.1030700@omnilan.de> <201004160822.09359.jhb@freebsd.org> <4BC8A76A.6000107@omnilan.de> <4BC8CB9E.8060802@omnilan.de> Date: Fri, 16 Apr 2010 13:53:34 -0700 Received: by 10.216.87.68 with SMTP id x46mr2606023wee.145.1271451214878; Fri, 16 Apr 2010 13:53:34 -0700 (PDT) Message-ID: From: Jack Vogel To: Harald Schmalzbauer Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Brandon Gooch , freebsd-stable@freebsd.org, Jeremy Chadwick , John Baldwin Subject: Re: em JumboFrame improovement and PCIe addon-card regression [Was: Re: em regression, UDP LOR followed by ssh stall] 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: Fri, 16 Apr 2010 20:53:36 -0000 Why are you using ZERO_COPY_SOCKETS? And is this LOR happening on STABLE or CURRENT? Jack On Fri, Apr 16, 2010 at 1:42 PM, Harald Schmalzbauer < h.schmalzbauer@omnilan.de> wrote: > Jack Vogel schrieb am 16.04.2010 22:02 (localtime): > > Glad things are better. On the Hartwell, the 0x10D3 adapter, what is the >> problem you are seeing? >> I just did an MFC, would ask that you try that code, see if it changes >> anything. >> > > > With latest MFCs I see em0: > but still this LOR: > login: lock order reversal: > 1st 0xffffff00015d4418 em0:rx(1) (em0:rx(1)) @ > /usr/src/sys/dev/e1000/if_em.c:1514 > 2nd 0xffffffff8093f108 udp (udp) @ /usr/src/sys/netinet/udp_usrreq.c:474 > KDB: stack backtrace: > db_trace_self_wrapper() at db_trace_self_wrapper+0x2a > _witness_debugger() at _witness_debugger+0x49 > witness_checkorder() at witness_checkorder+0x7ea > _rw_rlock() at _rw_rlock+0x58 > udp_input() at udp_input+0x1cd > ip_input() at ip_input+0xb3 > netisr_dispatch_src() at netisr_dispatch_src+0x9e > ether_demux() at ether_demux+0x176 > ether_input() at ether_input+0x176 > em_rxeof() at em_rxeof+0x166 > em_msix_rx() at em_msix_rx+0x42 > intr_event_execute_handlers() at intr_event_execute_handlers+0x67 > ithread_loop() at ithread_loop+0xae > fork_exit() at fork_exit+0x12a > fork_trampoline() at fork_trampoline+0xe > --- trap 0, rip = 0, rsp = 0xffffff8075504d30, rbp = 0 --- > > Is it worth mentioning that I compiled in ZERO_COPY_SOCKETS? > > So far I couldn't see any SSH session stall anymore. That was my proplem > after updating today, before the latest 7.0.0->7.0.5 change. > > I'll come back if I can see anything going suboptimal regarding "hartwell" > > Also the em1 (PRO/1000 Legacy Network Connection 1.0.1, pciconf device > 82541EI): > em1: Watchdog timeout -- resetting > is solved/gone/vanished :) > > Thanks! (why doesn't 'pciconf -lv' show a "device" entry for Hartwell?) > > > But I also have to tell that enabling jumbo frames is a big performance > degradation with SMB downloads. Uploads completely hang. With RELENG_8, 6 > weeks ago, I could manage to get 75MB/s transfers to my windows SR2600 > servers, MTU9014 and FreeBSD MTU1500, untuned Samba 3.3.10. > > Today, after updating RELENG_8 with unchanged samba, jumbo frames enabled > (mtu 9000 on FreeBSD), downloading via CIFS was half the transfer rate and > uploading almost completely stalled. > Will see to track down the "upload" problem. So far, jumbo frames at least > work with ICMP payloads up to 8972 bytes, but enabling still is a tranfer > rate regression. > > Thanks, > > -Harry > >