From: "H. Peter Anvin" <hpa@zytor.com>
To: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: [Qemu-devel] The TFTP server has the Sourcerer's Apprentice bug
Date: Sun, 02 Aug 2009 15:18:21 -0700 [thread overview]
Message-ID: <4A7610AD.4040901@zytor.com> (raw)
Hello,
I was investigating a failure to TFTP boot, and I found that the TFTP
server in Qemu has the Sourcerer's Apprentice bug (see RFC 1123, section
4.2.3.1. Specifically, it is *required* that the sending side:
a) MUST NOT retransmit in response to a duplicated ACK.
b) MUST retransmit based on timeouts.
(a) is trivial to fix, but (b) requires a little more knowledge of the
internals than I'm willing to devote my Sunday afternoon to fixing...
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
reply other threads:[~2009-08-02 22:21 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=4A7610AD.4040901@zytor.com \
--to=hpa@zytor.com \
--cc=qemu-devel@nongnu.org \
/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).