[Xen-bugs] [Bug 363] New: Network on domU does not work on blades (dom0 uses physical nic eth1)

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=363

           Summary: Network on domU does not work on blades (dom0 uses
                    physical nic eth1)
           Product: Xen
           Version: unstable
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: lge@xxxxxxxxxx
                CC: hohnbaum@xxxxxxxxxx,pl@xxxxxxxxxx


I have seen this problem on all of my blades which dom0 use physical nic eth1
instead of eth0 since yesterday (changeset: 7481). None of the domU's network
can reach anywhere.

Here are some info from Dom0 after xend starts:
bl2-2:~ # ifconfig
eth1      Link encap:Ethernet  HWaddr 00:11:25:9D:63:19
          inet addr:9.3.192.195  Bcast:9.3.192.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:582 errors:0 dropped:0 overruns:0 frame:0
          TX packets:253 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:69466 (67.8 Kb)  TX bytes:25465 (24.8 Kb)
          Interrupt:78
 
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:18 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1512 (1.4 Kb)  TX bytes:1512 (1.4 Kb)
 
peth0     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          UP BROADCAST RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:77
 
vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
 
xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          collisions:0 txqueuelen:0
          RX bytes:6800942 (6.4 Mb)  TX bytes:0 (0.0 b)

bl2-2:/etc/xen/scripts # ./network-bridge status
============================================================
5: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
    link/ether 00:11:25:9d:63:18 brd ff:ff:ff:ff:ff:ff
6: xenbr0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
    link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
  
incorrect number of arguments for command

Here are some from domU:

bl2-2-vm1:ß # ifconfig
eth0      Link encap:Ethernet  HWaddr AA:00:00:36:BE:6F
          inet addr:9.3.190.218  Bcast:9.3.190.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:17 errors:0 dropped:0 overruns:0 frame:0
          TX packets:60 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1020 (1020.0 b)  TX bytes:2597 (2.5 Kb)
 
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:39 errors:0 dropped:0 overruns:0 frame:0
          TX packets:39 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:3614 (3.5 Kb)  TX bytes:3614 (3.5 Kb)
 
bl2-2-vm1:ß # route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
9.3.190.0       *               255.255.255.0   U     0      0        0 eth0
link-local      *               255.255.0.0     U     0      0        0 eth0
loopback        *               255.0.0.0       U     0      0        0 lo
default         9.3.190.1       0.0.0.0         UG    0      0        0 eth0
bl2-2-vm1:ß # ping 9.3.190.1
PING 9.3.190.1 (9.3.190.1) 56(84) bytes of data.
>From 9.3.190.218: icmp_seq=1 Destination Host Unreachable
>From 9.3.190.218 icmp_seq=1 Destination Host Unreachable
>From 9.3.190.218 icmp_seq=2 Destination Host Unreachable
>From 9.3.190.218 icmp_seq=3 Destination Host Unreachable
 
--- 9.3.190.1 ping statistics ---
5 packets transmitted, 0 received, +4 errors, 100% packet loss, time 4028ms
, pipe 3

I am not quite sure if this problem is caused by something in the network-bridge
script that I need to modify to make eth1 work which I did not do. I tried
change vifnum from 0 to 1 in the script. But it did not help.

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