Openmoko Bug #1933: usb network connection flaky

Openmoko Public Trac bugs at docs.openmoko.org
Sun Aug 31 15:43:53 CEST 2008


#1933: usb network connection flaky
-------------------------+--------------------------------------------------
    Reporter:  olberger  |        Owner:  openmoko-devel
        Type:  defect    |       Status:  new           
    Priority:  normal    |    Milestone:                
   Component:  unknown   |      Version:                
    Severity:  normal    |   Resolution:                
    Keywords:            |    Blockedby:                
Reproducible:            |     Blocking:                
-------------------------+--------------------------------------------------

Comment(by olberger):

 Here's some bits of diagnosis on the desktop :

 # ifconfig -v usb0
 usb0      Link encap:Ethernet  HWaddr 4e:d5:00:3d:40:85
           inet adr:192.168.0.200  Bcast:192.168.0.255
 Masque:255.255.255.192
           adr inet6: fe80::4cd5:ff:fe3d:4085/64 Scope:Lien
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:8619 errors:14460 dropped:0 overruns:0 frame:0
           TX packets:14959 errors:373 dropped:0 overruns:0 carrier:0
           collisions:0 lg file transmission:1000
           RX bytes:545557 (532.7 KiB)  TX bytes:20606649 (19.6 MiB)

 # route -n
 Table de routage IP du noyau
 Destination     Passerelle      Genmask         Indic Metric Ref    Use
 Iface
 192.168.0.192   0.0.0.0         255.255.255.192 U     0      0        0
 usb0
 192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0
 eth0
 0.0.0.0         192.168.0.254   0.0.0.0         UG    0      0        0
 eth0

 You'll notice I have a local LAN with a netmask for 192.168.0.x up to 192
 on eth0, but it doesn't seem to be a problem as it works for some time...

 Also running tcpdump when it breaks gives :

 15:33:43.330455 IP 192.168.0.202 > 192.168.0.200: ICMP echo reply, id
 59923, seq 1309, length 64
 15:33:44.333297 IP 192.168.0.200 > 192.168.0.202: ICMP echo request, id
 59923, seq 1310, length 64
 15:33:44.334245 IP 192.168.0.202 > 192.168.0.200: ICMP echo reply, id
 59923, seq 1310, length 64
 15:33:45.337293 IP 192.168.0.200 > 192.168.0.202: ICMP echo request, id
 59923, seq 1311, length 64
 15:33:45.339060 IP 192.168.0.202 > 192.168.0.200: ICMP echo reply, id
 59923, seq 1311, length 64
 15:33:46.389253 IP 192.168.0.200 > 192.168.0.202: ICMP echo request, id
 59923, seq 1312, length 64
 15:33:47.341281 IP 192.168.0.200 > 192.168.0.202: ICMP echo request, id
 59923, seq 1313, length 64
 15:33:48.341276 IP 192.168.0.200 > 192.168.0.202: ICMP echo request, id
 59923, seq 1314, length 64
 15:33:49.341300 IP 192.168.0.200 > 192.168.0.202: ICMP echo request, id
 59923, seq 1315, length 64
 15:33:50.341284 IP 192.168.0.200 > 192.168.0.202: ICMP echo request, id
 59923, seq 1316, length 64

 Will try and provide debug info from the FR if/when I can connect to it
 via WIFI at the same time as usb

-- 
Ticket URL: <https://docs.openmoko.org/trac/ticket/1933#comment:2>
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