From owner-freebsd-stable@FreeBSD.ORG Tue Oct 16 00:50:24 2007 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D6CD216A418 for ; Tue, 16 Oct 2007 00:50:24 +0000 (UTC) (envelope-from pyunyh@gmail.com) Received: from wr-out-0506.google.com (wr-out-0506.google.com [64.233.184.238]) by mx1.freebsd.org (Postfix) with ESMTP id AC3A313C478 for ; Tue, 16 Oct 2007 00:50:23 +0000 (UTC) (envelope-from pyunyh@gmail.com) Received: by wr-out-0506.google.com with SMTP id 70so874402wra for ; Mon, 15 Oct 2007 17:50:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:received:received:date:from:to:subject:message-id:reply-to:references:mime-version:content-type:content-disposition:in-reply-to:user-agent; bh=0qp7fa3+nbCV5zElwq2yqkssk7lNxI+SZaVj1pt1pdM=; b=dugy7jVp0IJmBGWEDxEMdF9MMoFyoIJeB5O0Vy/X5FBeepFEpdoLiXErg3al24/cfpwMmJL66ISlNk+eLrFpA6nj1p8Ytd39WMszRKOxf3qyQH+eBDkszhNi0fLSlqKNEJ1eiuCaxfbVp0UorKQlXPlmHKtnf0DzqxIOtFGSDIg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:date:from:to:subject:message-id:reply-to:references:mime-version:content-type:content-disposition:in-reply-to:user-agent; b=S/ZybLWqe1jbkNSEokYmDCyImn/jbaEKI4KT3U+mZwJpHnUoQIvXdegxRkwtzEVS1eVokqBzyhhCoSoXpdhTO5c/54lR+evBBKcPs0q67jch+ek5dIIQ3J8eg0/2kVq2s2whuVDmhHfRjEuK6T8iAOGsRIHH6kWVU+pbCTGgS/s= Received: by 10.90.118.12 with SMTP id q12mr8086416agc.1192495822590; Mon, 15 Oct 2007 17:50:22 -0700 (PDT) Received: from michelle.cdnetworks.co.kr ( [211.53.35.84]) by mx.google.com with ESMTPS id 8sm2909nzn.2007.10.15.17.50.17 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 15 Oct 2007 17:50:20 -0700 (PDT) Received: from michelle.cdnetworks.co.kr (localhost.cdnetworks.co.kr [127.0.0.1]) by michelle.cdnetworks.co.kr (8.13.5/8.13.5) with ESMTP id l9G0kcRj079602 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 16 Oct 2007 09:46:38 +0900 (KST) (envelope-from pyunyh@gmail.com) Received: (from yongari@localhost) by michelle.cdnetworks.co.kr (8.13.5/8.13.5/Submit) id l9G0kbED079601; Tue, 16 Oct 2007 09:46:37 +0900 (KST) (envelope-from pyunyh@gmail.com) Date: Tue, 16 Oct 2007 09:46:37 +0900 From: Pyun YongHyeon To: Esa Karkkainen , stable@freebsd.org Message-ID: <20071016004637.GA79351@cdnetworks.co.kr> References: <20071004165755.GA1049@pp.htv.fi> <47120D83.1010703@FreeBSD.org> <20071015203202.GA17964@pp.htv.fi> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071015203202.GA17964@pp.htv.fi> User-Agent: Mutt/1.4.2.1i Cc: Subject: Re: Reproducable, possibly NFS related, fatal double fault in 6.2-R-p7 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: pyunyh@gmail.com List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Oct 2007 00:50:25 -0000 On Mon, Oct 15, 2007 at 11:32:02PM +0300, Esa Karkkainen wrote: > On Sun, Oct 14, 2007 at 02:37:23PM +0200, Kris Kennaway wrote: > > Esa Karkkainen wrote: > > > I get "Fatal double fault" error when writing to a filesystem > > >mounted from NFS server. > > I got an offlist reply in which he suggested that the problem might be > in nve driver. > > I installed an additional Intel nic, appropriate lines from dmesg are > as follows > > fxp0: port 0xb000-0xb03f mem > 0xe7200000-0xe7200fff,0xe7000000-0xe70fffff irq 11 at device 6.0 on pci1 > miibus1: on fxp0 > inphy0: on miibus1 > inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto > > After I started to use fxp0, I can dump(8) all the necessary filesystems > to the NFS mount, with out panic. > > When I used nve0 dump(8) or cp(1) managed to write less than megabyte to NFS > mount and then machine paniced. > I remember that nve(4) is NOT stable under heavy network loads. I'd like to say use nfe(4) which is believed to be more stable/fast than nve(4). nfe(4) is also default NVIDIA NIC driver for CURRENT/RELENG_7. If you have to use RELENG_6 try nfe(4) at the following URL. http://www.f.csce.kyushu-u.ac.jp/~shigeaki/software/freebsd-nfe.html > It didn't matter if I made dump(8) write to the NFS mount or to a local > filesystem and then copied the file to NFS mount, the end result was a > panic. > > > > Both NFS server and client are running 6.2-RELEASE-p7. > > Both machines have been updated to -p8. > > > ># kgdb kernel.debug /home/crash/vmcore.2 > > >Fatal double fault: > > >eip = 0xc063242a > > > > Can you look up these IPs in the kernel symbol table (see the developers > > handbook)? This might give at least one clue, although I'm not sure it > > is relevant. > > I'm sorry, but I need to learn alot more about gdb and debugging in > general before I can find that information. IIRC I have written about > ten or twenty lines of C in this millenia. > > I do have matching kernel.debug and vmcore files, but kernel modules etc > have been removed before I made new kernel and world. > > > You might also update to RELENG_6, I think there was at least one bug > > fixed that might have caused such a thing. > > At the moment I don't have any stability problems with this machine, but > I can upgrade to RELENG_6 before RELENG_6_3 is branched if that is > necessary. > > > Also try to rule out memory failure etc. > > This machine has two 512MB DDR333 DIMM's. > > I installed sysutils/memtest and ran three simultaneously, first two > allocated 326 MB each and last one allocated 150 MB of memory, so I'd > start to swap. No errors. > > I know these test are not conclusive, but I don't think DIMM's are > faulty. > > -- -- Regards, Pyun YongHyeon