[ECOS] cs8900a seems to be missing frames
Bob Koninckx
bob.koninckx@o-3s.com
Wed Sep 15 19:26:00 GMT 2004
Target mpc555, ec555 board
Apparently, during gdb downloads, my ethernet controller (cs8900a) drops
(or does not see) a lot of frames, resulting in retransmits and overall
poor performance and sometimes even complete lockup. The ethereal trace
below explains why I think frames are dropped. Anybody ever experienced
something similar ? Any known workarounds ?
Thanks in advance,
Bob
1177 5.064851 192.168.1.2 192.168.246.3 TCP
32791 > 9000 [PSH, ACK] Seq=37645 Ack=2220 Win=955008 Len=1
1178 5.064971 192.168.1.2 192.168.246.3 TCP
32791 > 9000 [PSH, ACK] Seq=37646 Ack=2220 Win=955008 Len=537
1179 5.066694 192.168.246.3 192.168.1.2 TCP
9000 > 32791 [ACK] Seq=2220 Ack=37646 Win=1472 Len=0
1180 5.067084 192.168.246.3 192.168.1.2 TCP
9000 > 32791 [ACK] Seq=2220 Ack=38183 Win=1472 Len=0
1181 5.081555 192.168.246.3 192.168.1.2 TCP
9000 > 32791 [PSH, ACK] Seq=2220 Ack=38183 Win=1472 Len=7
1182 5.081738 192.168.1.2 192.168.246.3 TCP
32791 > 9000 [PSH, ACK] Seq=38183 Ack=2227 Win=955008 Len=1
1183 5.081834 192.168.1.2 192.168.246.3 TCP
32791 > 9000 [PSH, ACK] Seq=38184 Ack=2227 Win=955008 Len=540
1184 5.083583 192.168.246.3 192.168.1.2 TCP
9000 > 32791 [ACK] Seq=2227 Ack=38184 Win=1472 Len=0
1185 5.284929 192.168.1.2 192.168.246.3 TCP
[TCP Retransmission] 32791 > 9000 [PSH, ACK] Seq=38184 Ack=2227
Win=955008 Len=540
1186 5.286557 192.168.246.3 192.168.1.2 TCP
9000 > 32791 [ACK] Seq=2227 Ack=38724 Win=1472 Len=0
1187 5.300227 192.168.246.3 192.168.1.2 TCP
9000 > 32791 [PSH, ACK] Seq=2227 Ack=38724 Win=1472 Len=7
1188 5.300457 192.168.1.2 192.168.246.3 TCP
32791 > 9000 [PSH, ACK] Seq=38724 Ack=2234 Win=955008 Len=1
1189 5.300556 192.168.1.2 192.168.246.3 TCP
32791 > 9000 [PSH, ACK] Seq=38725 Ack=2234 Win=955008 Len=547
1190 5.302257 192.168.246.3 192.168.1.2 TCP
9000 > 32791 [ACK] Seq=2234 Ack=38725 Win=1472 Len=0
1191 5.302651 192.168.246.3 192.168.1.2 TCP
9000 > 32791 [ACK] Seq=2234 Ack=39272 Win=1472 Len=0
1192 5.317231 192.168.246.3 192.168.1.2 TCP
9000 > 32791 [PSH, ACK] Seq=2234 Ack=39272 Win=1472 Len=7
1193 5.317451 192.168.1.2 192.168.246.3 TCP
32791 > 9000 [PSH, ACK] Seq=39272 Ack=2241 Win=955008 Len=1
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