From: "Russ Cox" <rsc@swtch.com>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu>
Subject: Re: [9fans] snoopy oddity
Date: Mon, 22 Jan 2007 11:54:40 -0500 [thread overview]
Message-ID: <ee9e417a0701220854o14267e7eoa5e5812a57512794@mail.gmail.com> (raw)
In-Reply-To: <0a8e33b5f18b75d5b68a543259e8a0ad@coraid.com>
> has anyone seen snoopy miss packets like this? i see the ack for a packet
> that snoopy never sees. these hosts are connected back-to-back.
sure. if snoopy isn't reading packets out of the kernel fast enough,
it will miss some. the kernel can't buffer them up indefinitely.
for the size of the buffer:
if you are reading from a snoop file then see
/sys/src/9/ip/ipifc.c:319 (arg to qopen).
if you are reading from an ether device then see
/sys/src/9/pc/devether.c:428,440 (arg to netifinit)
russ
next prev parent reply other threads:[~2007-01-22 16:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-22 16:23 erik quanstrom
2007-01-22 16:54 ` Russ Cox [this message]
2007-01-22 18:34 ` erik quanstrom
2007-01-22 21:28 ` Russ Cox
2007-01-22 22:06 ` erik quanstrom
2007-01-23 18:14 ` ron minnich
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=ee9e417a0701220854o14267e7eoa5e5812a57512794@mail.gmail.com \
--to=rsc@swtch.com \
--cc=9fans@cse.psu.edu \
/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;
as well as URLs for NNTP newsgroup(s).