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Bug#446902: marked as done (Marvell Gigabit Ethernet Controller (driver sky2) gives bad UDP checksum )

Your message dated Mon, 4 Feb 2008 00:01:23 +0100
with message-id <20080203230123.GQ4941@stro.at>
and subject line Marvell Gigabit Ethernet Controller (driver sky2) gives bad UDP checksum
has caused the attached Bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what I am
talking about this indicates a serious mail system misconfiguration
somewhere.  Please contact me immediately.)

Debian bug tracking system administrator
(administrator, Debian Bugs database)
--- Begin Message --- 
Package: linux-2.6
Severity: important

--- Please enter the report below this line. ---


--- System information. ---
Architecture: i386
Kernel:       Linux 2.6.22-2-686

Debian Release: lenny/sid
  650 testing         security.debian.org
  650 testing         ftp.de.debian.org
  600 unstable        ftp.de.debian.org

--- Package information. ---
Depends       (Version) | Installed
=======================-+-===========
                        |
Hardware: 04:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8055 PCI-E Gigabit Ethernet Controller (rev 10)
For Kernels 2.6.20, 2.6.21 and 2.6.22 the checksum of sent UDP packets is bad if no data was transmitted over a TCP connection before. Main symptom is that DNS doesn't work until any TCP connection is established and some data is sent over it, because the packages are discarded by the receiving system. 

Switching off offloading for sent packages with ethtool
(ethtool --offload eth0 rx on tx off) resolves the problem.
There's a similar bug report for Ubuntu ( https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/127749 ). 

Best regards, Dieter

--- End Message ---
--- Begin Message --- 
Version: 2.6.23-1

> The problem doesn't appear with 2.6.23. Looks like it was fixed with
> this kernel bug: http://bugzilla.kernel.org/show_bug.cgi?id=8667

ok thanks, closing.

-- 
maks

--- End Message ---
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