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ORSoC Ordb2a-ep4ce22 ethernet hangs
by rerdfh on Feb 11, 2012
rerdfh
Posts: 6
Joined: Jul 27, 2011
Last seen: Aug 2, 2012
Hi there,
i compiled linux for the Ordb2a-ep4ce22 board and it is running fine over the usb/uart terminal.

But when i use a telnet connection over the network interface the connection breakes down after one or two commands.

What can i do about it?
RE: ORSoC Ordb2a-ep4ce22 ethernet hangs
by rerdfh on Feb 21, 2012
rerdfh
Posts: 6
Joined: Jul 27, 2011
Last seen: Aug 2, 2012
Ok I tried to reproduce the error: The telnet connection is working fine, but seems to break down when aborting commands. On the serial connection the problem looks like this: Please press Enter to activate this console. # ifconfig eth0 192.168.37.5 # Jan 1 00:00:37 login[45]: root login on 'pts/0' # # ------------[ cut here ]------------ WARNING: at net/sched/sch_generic.c:255 0xc0177b80() NETDEV WATCHDOG: eth0 (ethoc): transmit queue 0 timed out Modules linked in: Stack dump [0xc023bdc8]: sp + 00: 0x00000009 . . . sp + 564: 0x00000000 [] . . . [] ======================= ---[ end trace 7a4b484acbf64e73 ]--- # This happened after I logged in with telnet and did something like "find / | grep myfiles" and aborted this with ctrl+c. The "find / | grep xy" seems not to cause the problem. But the interrupt with ctrl+c. The network connection breaks down and I can't get it up working again (ifconfig down / up, killall inetd, inetd& ...). The board also isn't available for a ping command. Only a reboot helps. Any ideas?
RE: ORSoC Ordb2a-ep4ce22 ethernet hangs
by sfielding on May 1, 2012
sfielding
Posts: 6
Joined: Feb 25, 2004
Last seen: Dec 22, 2020
Hi rerdfh,
I am experiencing similar problems, when I try to ping out with packet sizes greater than about 470 bytes.
Also telnet fails for me to, but it seems to be related to the amount of data that is sent. For example, if I do telnet to the board and then try list the contents of a directory with many files.
My conclusion is that there is a problem with larger Ethernet packets.
Sorry, I don't know what the solution is.
Steve
RE: ORSoC Ordb2a-ep4ce22 ethernet hangs
by Kirsch on May 19, 2012
Kirsch
Posts: 8
Joined: Apr 3, 2012
Last seen: Aug 24, 2012
Hi rerdfh,
I am experiencing similar problems, when I try to ping out with packet sizes greater than about 470 bytes.
Also telnet fails for me to, but it seems to be related to the amount of data that is sent. For example, if I do telnet to the board and then try list the contents of a directory with many files.
My conclusion is that there is a problem with larger Ethernet packets.
Sorry, I don't know what the solution is.
Steve

Same problem here.

It's no fun to work with the board.
no use no use 1/1 no use no use
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