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Bug#558426: atl1e performance problems with native IPv6



On Mon, 2009-11-30 at 02:29 +0000, Ben Hutchings wrote:
> On Sat, 2009-11-28 at 21:08 +0100, Joerg Pareigis wrote:
> > Package: linux-image-2.6-686
> > Version: 2.6.26-19lenny2
> > Module:  atl1e
> > 
> > IPv4 traffic runs perfect with 100Mbit/s.
> > Receiving data with IPv6 is also OK.
> > But sending data is horrible like a 9600 modem line.
> > tcpdump on the receiving host says: IP6 truncated-ip6 - 1426 bytes missing!
> > see below.
> > 
> > I made a ssh to the machine with the Atheros adapter and just type "ls 
> > -lR /usr"
> > This was captured on the reveiving host.
> [...]
> 
> If you run 'ethtool -K eth0 tso off' (assuming the Atheros adapter is
> named 'eth0'), does IPv6 traffic work properly?

Never mind, this driver does not support that command (this is another
bug).  My wife's computer has one of these network adapters so I will
experiment on that.

Ben.

-- 
Ben Hutchings
Quantity is no substitute for quality, but it's the only one we've got.

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