Hi Gabor, after a search in the UBNT forum (topic RouterStation) there are some user the have exactly the same problem of me ( http://forum.ubnt.com/forum/viewtopic.php?p=25153#25153):
When I connect a cross-over'd cable between LAN2 and my non-auto-mdx'ing > switch, i get periodic brief link light blinks on the switch (connecting to > LAN1, I get a solid link light at the switch). The LAN2 led on the rs board > does nothing. > This happens with an ethernet crossover (or not) cable connected to the the second LAN port. Is it normal that I can't communicate through the second LAN interfaces? Note the WAN port and the LAN port next to the WAN work correctly. This behaviour can be a driver-depend or my RS is broken? Thanks a lot for you work. Andrea On Fri, Feb 13, 2009 at 8:30 PM, Gabor Juhos <[email protected]> wrote: > Andrea Tassi írta: >> Hi, >> >> I'm testing, as previously explained some mails ago, the ethernet >> bandwidth on my RouterStation with iperf. I can confirm the problem >> reported in the post http://forum.ubnt.com/forum/viewtopic.php?t=8150 >> (and discovered by the user milank). >> You can reproduce a kernel panic performing this test: >> 1) the RouterStation is direct connected to a PC by its WAN interface >> 2) run on the RS the Iperf server: iperf -s -u >> 3) from the PC run the Iperf client: iperf -u -c <RS_IP> -b 150M -i 1 -r >> >> [...] >> >> 701 pages shared >> 15252 pages non-shared >> eth0: out of memory > > The driver runs out of skbs. > >> [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams >> [ 3] 0.0-10.2 sec 106 KBytes 85.1 Kbits/sec 595.163 ms >> 79876/79950 (1e+02%) >> ------------------------------------------------------------ >> Client connecting to 192.168.1.1, UDP port 5001 >> Sending 1470 byte datagrams >> UDP buffer size: 108 KByte (default) >> ------------------------------------------------------------ >> [ 3] local 192.168.1.101 port 49377 connected with 192.168.1.1 port 5001 >> [ ID] Interval Transfer Bandwidth >> [ 3] 0.0-10.0 sec 40.2 MBytes 33.7 Mbits/sec >> [ 3] Sent 28660 datagrams >> [ 3] Server Report: >> [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams >> [ 3] 0.0-10.0 sec 40.2 MBytes 33.7 Mbits/sec 0.190 ms 1/28661 (0.0035%) >> >> After the oops you can continue to use the WAN/LAN interfaces without >> any problems. > > Yes, the Out Of Memory issue is handled in the driver, so the transfer can continue. > >> Could you help me? > > I'm still wondering how can i improve the driver to avoid this. > > Regards, > Gabor > > >
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