From: Timur Aydin <ta@taydin.org>
To: gentoo-user@lists.gentoo.org
Subject: [gentoo-user] Forwarding bug in kernel 3.14.1 and 3.14.2
Date: Mon, 05 May 2014 13:58:02 +0300 [thread overview]
Message-ID: <53676EBA.1060305@taydin.org> (raw)
Hi,
To all folks that use their gentoo linux PC as their internet
router/gateway, don't upgrade your kernel to 3.14.1 or 3.14.2.
These versions have a bug related to IP packet forwarding. Internet
upload speed for the NAT clients gets extremely slow (in the order of
10Kbps), which download speed remain unaffected. I have spent the entire
weekend trying to debug the slow upload issue. I tried different NIC's,
different cables, different clients etc, problem was still occurring.
Upload/download from the Gentoo linux PC is fine, but any NAT client
exhibits the slow upload speed problem. I also suspected that somehow
the MSS clamping with iptables doesn't work, that wasn't the problem
either, because even with all tables flushed and only IP MASQUERADING in
place the problem was there.
I finally found a bug report that explains the symtom:
http://www.spinics.net/lists/netdev/msg280571.html
I then downgraded the kernel to 3.13.11, which fixed the problem. So,
all of you guys using your Gentoo PC as your internet gateway, keep
3.13.11 around for a while.
--
Timur
next reply other threads:[~2014-05-05 10:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-05 10:58 Timur Aydin [this message]
2014-05-06 0:28 ` [gentoo-user] Forwarding bug in kernel 3.14.1 and 3.14.2 Michael Orlitzky
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=53676EBA.1060305@taydin.org \
--to=ta@taydin.org \
--cc=gentoo-user@lists.gentoo.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