Bug#558426: atl1e performance problems with native IPv6
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.
20:49:48.126692 IP6 2001:4b88:1018:1:92e6:baff:fe48:7d3d.22 >
2001:4b88:1018:1:218:f3ff:fe93:de4b.60638: . ack 864 win 213
<nop,nop,timestamp 1648940 215590958>
20:49:48.290428 IP6 2001:4b88:1018:1:92e6:baff:fe48:7d3d.22 >
2001:4b88:1018:1:218:f3ff:fe93:de4b.60638: . 65745:67173(1428) ack 864
win 213 <nop,nop,timestamp 1648981 215590958>
20:49:48.328990 IP6 2001:4b88:1018:1:218:f3ff:fe93:de4b.60638 >
2001:4b88:1018:1:92e6:baff:fe48:7d3d.22: . ack 67173 win 501
<nop,nop,timestamp 215591019 1648981>
20:49:48.329446 IP6 truncated-ip6 - 1426 bytes
missing!5b2:4b88:1018:1:92e6:baff:fe48:7d3d.22 >
2001:4b88:1018:1:218:f3ff:fe93:de4b.60638: . 41496:44352(2856) ack 49
win 213 <nop,nop,timestamp 1648990 215591019>
20:49:48.329565 IP6 truncated-ip6 - 1466 bytes
missing!5b2:4b88:1018:1:92e6:baff:fe48:7d3d.22 >
2001:4b88:1018:1:218:f3ff:fe93:de4b.60638: . 41496:44352(2856) ack 49
win 213 <nop,nop,timestamp 1648990 215591019>
20:49:48.538425 IP6 2001:4b88:1018:1:92e6:baff:fe48:7d3d.22 >
2001:4b88:1018:1:218:f3ff:fe93:de4b.60638: . 67173:68601(1428) ack 864
win 213 <nop,nop,timestamp 1649043 215591019>
20:49:48.538432 IP6 2001:4b88:1018:1:218:f3ff:fe93:de4b.60638 >
2001:4b88:1018:1:92e6:baff:fe48:7d3d.22: . ack 68601 win 501
<nop,nop,timestamp 215591071 1649043>
20:49:48.538877 IP6 truncated-ip6 - 1426 bytes
missing!5b2:4b88:1018:1:92e6:baff:fe48:7d3d.22 >
2001:4b88:1018:1:218:f3ff:fe93:de4b.60638: . 44352:47208(2856) ack 49
win 213 <nop,nop,timestamp 1649043 215591071>
20:49:48.538996 IP6 truncated-ip6 - 1466 bytes
missing!5b2:4b88:1018:1:92e6:baff:fe48:7d3d.22 >
2001:4b88:1018:1:218:f3ff:fe93:de4b.60638: . 44352:47208(2856) ack 49
win 213 <nop,nop,timestamp 1649043 215591071>
20:49:48.750415 IP6 2001:4b88:1018:1:92e6:baff:fe48:7d3d.22 >
2001:4b88:1018:1:218:f3ff:fe93:de4b.60638: . 68601:70029(1428) ack 864
win 213 <nop,nop,timestamp 1649096 215591071>
20:49:48.750421 IP6 2001:4b88:1018:1:218:f3ff:fe93:de4b.60638 >
2001:4b88:1018:1:92e6:baff:fe48:7d3d.22: . ack 70029 win 501
<nop,nop,timestamp 215591124 1649096>
20:49:48.750867 IP6 truncated-ip6 - 1426 bytes
missing!5b2:4b88:1018:1:92e6:baff:fe48:7d3d.22 >
2001:4b88:1018:1:218:f3ff:fe93:de4b.60638: . 47208:50064(2856) ack 49
win 213 <nop,nop,timestamp 1649096 215591124>
20:49:48.750986 IP6 truncated-ip6 - 1466 bytes
missing!5b2:4b88:1018:1:92e6:baff:fe48:7d3d.22 >
2001:4b88:1018:1:218:f3ff:fe93:de4b.60638: . 47208:50064(2856) ack 49
win 213 <nop,nop,timestamp 1649096 215591124>
modinfo atl1e
filename: /lib/modules/2.6.26-2-686/kernel/drivers/net/atl1e/atl1e.ko
version: 1.0.0.7-NAPI
license: GPL
description: Atheros 1000M Ethernet Network Driver
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