From: Dave Jones <davej@codemonkey.org.uk>
To: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: 2.5.60 NFS FSX
Date: Thu, 13 Feb 2003 21:30:48 +0000 [thread overview]
Message-ID: <20030213213048.GA24878@codemonkey.org.uk> (raw)
In-Reply-To: <15948.2650.639700.363495@charged.uio.no>
On Thu, Feb 13, 2003 at 10:12:58PM +0100, Trond Myklebust wrote:
> > There seems to be some garbage at the end of the capture. I'm
> > not sure why, but it seems tcpdump does that sometimes.
> Does it do that on 2.4.x? I've certainly never seen that happen on a
> stable kernel.
I'll try in a few minutes. It doesn't always do it in 2.5, just like
once every dozen or so captures. NIC is a 3com 3c905C-TX/TX-M [Tornado]
in the client, and an Intel 82801BA/BAM/CA/CAM in the server, both
boxes connected through a cheapo 100MB switch. Nothing special.
> In fact ethereal reports
>
> Message: pcap: File has 1045168887-byte packet, bigger than maximum of 65535
> No wonder we see bizarre crashes...
That did seem odd yes. I put it down to a tcpdump bug.
But if you think thats whats triggering it...
> There are several other odd features in this tcpdump. Random UDP
> packets from the server to the client with a junk payload (usually
> consisting of a load of zeros) appear to be pretty frequent.
Wacky. Interested netdev parties can find the ~2MB tcpdump output at
http://www.codemonkey.org.uk/cruft/tcp-trond.bz2
(please don't hammer that server with requests for this unless you
really do want/need it - the mind boggles at how many hits the nfs
fsx dumps got in the past -- I'm sure we don't have *that* many
interested NFS developers 8-).
> Is this against a 2.5.x server? If so, could you try against a 2.4.x
> or a non-linux server?
This is a 2.4.21pre3 server. No non-linux servers to try against
right now..
Dave
--
| Dave Jones. http://www.codemonkey.org.uk
| SuSE Labs
next prev parent reply other threads:[~2003-02-13 21:25 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-13 15:27 2.5.60 NFS FSX Dave Jones
2003-02-13 15:45 ` Trond Myklebust
2003-02-13 15:51 ` Dave Jones
2003-02-13 16:04 ` Trond Myklebust
2003-02-13 16:05 ` Dave Jones
2003-02-13 18:54 ` Joel Becker
2003-02-13 19:08 ` Trond Myklebust
2003-02-13 19:27 ` Dave Jones
[not found] ` <20030213204906.GA24109@codemonkey.org.uk>
2003-02-13 21:12 ` Trond Myklebust
2003-02-13 21:30 ` Dave Jones [this message]
2003-02-13 22:05 ` Dave Jones
2003-02-13 22:15 ` Dave Jones
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20030213213048.GA24878@codemonkey.org.uk \
--to=davej@codemonkey.org.uk \
--cc=linux-kernel@vger.kernel.org \
--cc=trond.myklebust@fys.uio.no \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox