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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] RE: new /etc/xen/network script
On Tue, 2005-08-16 at 17:51 +0100, Ian Pratt wrote: > > I, too, am having network related issues. I am now seeing > > this problem on a FC3 box, which previously had worked just > > fine. The networking is working fine before I enter 'xend > > start'. No changes are made to the network-bridge script that > > comes with the source, and the machine has only only nic, eth0. > > Grrr. Please can you do a 'netstat -rn' before and after. I should point out that the new network-bridge script appears to have cured the original problem on the SLES 9 boxes; at least xen-br0 is coming up and Dom0 retains networking on those boxes. On the FC3 box: before:[root@dbarrera ~]# netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 9.53.94.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 0.0.0.0 9.53.94.1 0.0.0.0 UG 0 0 0 eth0 > What kind of network card is this? Intel 82541EI Gigabit Ethernet Controller (Copper) > > The TX/RX counters for the new eth0 are non zero. Are they going up? > In what whay does networking not work? I cannot connect to or from the outside (ssh, ping, nfs mounts, etc). > Can you use tcpdump on eth0 to determine whether packets from the outside > world are arriving. It seems that packets from the outside world are coming in. I entered 'tcpdump -n -i eth0 host 9.53.94.235' then when I tried to ssh from the other machine, it shows up on the tcpdump. But the ssh session is never established. Ping shows up as well. > If not, what about peth0? Same. > (Bare in mind that if you only have one-way connectivity the only packets > you're see are arps, not icmp pings or anything else) > > Ian > > > ifconfig before 'xend start': > > > > [root@dbarrera ~]# ifconfig > > eth0 Link encap:Ethernet HWaddr 00:0D:60:F0:C5:C8 > > inet addr:9.53.94.235 Bcast:9.53.94.255 Mask:255.255.255.0 > > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > > RX packets:99 errors:0 dropped:0 overruns:0 frame:0 > > TX packets:88 errors:0 dropped:0 overruns:0 carrier:0 > > collisions:0 txqueuelen:1000 > > RX bytes:12299 (12.0 KiB) TX bytes:11426 (11.1 KiB) > > Base address:0x2000 Memory:e8100000-e8120000 > > > > 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:26 errors:0 dropped:0 overruns:0 frame:0 > > TX packets:26 errors:0 dropped:0 overruns:0 carrier:0 > > collisions:0 txqueuelen:0 > > RX bytes:2216 (2.1 KiB) TX bytes:2216 (2.1 KiB) > > > > [root@dbarrera ~]# brctl show > > bridge name bridge id STP enabled interfaces > > [root@dbarrera ~]# > > > > when 'xend start' is entered, these messages appear on console: > > store_evtchn = 16 > > XENBUS xs_read_watch: 0 > > > > ifconfig AFTER 'xend start'eth0 Link encap:Ethernet > > HWaddr 00:0D:60:F0:C5:C8 > > inet addr:9.53.94.235 Bcast:9.53.94.255 Mask:255.255.255.0 > > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > > RX packets:380 errors:0 dropped:0 overruns:0 frame:0 > > TX packets:3 errors:0 dropped:0 overruns:0 carrier:0 > > collisions:0 txqueuelen:0 > > RX bytes:28046 (27.3 KiB) TX bytes:426 (426.0 b) > > > > 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:26 errors:0 dropped:0 overruns:0 frame:0 > > TX packets:26 errors:0 dropped:0 overruns:0 carrier:0 > > collisions:0 txqueuelen:0 > > RX bytes:2216 (2.1 KiB) TX bytes:2216 (2.1 KiB) > > > > peth0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF > > inet addr:9.53.94.235 Bcast:9.53.94.255 Mask:255.255.255.0 > > UP BROADCAST RUNNING NOARP MULTICAST MTU:1500 Metric:1 > > RX packets:501 errors:0 dropped:0 overruns:0 frame:0 > > TX packets:111 errors:0 dropped:0 overruns:0 carrier:0 > > collisions:0 txqueuelen:1000 > > RX bytes:44601 (43.5 KiB) TX bytes:12036 (11.7 KiB) > > Base address:0x2000 Memory:e8100000-e8120000 > > > > vif0.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF > > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > > RX packets:3 errors:0 dropped:0 overruns:0 frame:0 > > TX packets:380 errors:0 dropped:0 overruns:0 carrier:0 > > collisions:0 txqueuelen:0 > > RX bytes:426 (426.0 b) TX bytes:28046 (27.3 KiB) > > > > xen-br0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF > > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > > RX packets:375 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:22208 (21.6 KiB) TX bytes:0 (0.0 b) > > > > [root@dbarrera ~]# brctl show > > bridge name bridge id STP enabled interfaces > > xen-br0 8000.feffffffffff no peth0 > > vif0.0 > > > > xen-br0 is up, but networking is dead. This is different from > > the previous issues where xen-br0 was not coming up, but when > > started manually networking resumed. > > > > On 2 other machines, networking is up and working, Dom0 has > > networking running correctly, but when I start a domU, it > > does not have networking. I have 3 similar machines, only one > > of which has a domU with working network; the other two > > don't, even though they have very similar setups. This *may* > > end up being a setup issue (although these same setups worked > > before), but I can't figure out what that could > > be--everything looks like it is supposed to be. > > > > > So, ifdown does succeed in taking the interface down. I > > wander why the routes aren't getting removed? > > > > > > Could you do: > > > ifconfig > > > netstat -rn > > > ifdown eth0 > > > netstat -rn > > > ifconfig > > > > > > Thanks, > > > Ian > > > > > > > > > > -----Original Message----- > > > > From: Zhai, Edwin [mailto:edwin.zhai@xxxxxxxxx] > > > > Sent: 16 August 2005 16:57 > > > > To: Ian Pratt > > > > Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; ian.pratt@xxxxxxxxxxxx > > > > Subject: RE: new /etc/xen/network script > > > > > > > > > > > > ***Before*** > > > > [root@vt-edwin ~]# ifconfig > > > > > > > > eth0 Link encap:Ethernet HWaddr 00:0C:F1:FE:4C:5B > > > > > > > > inet addr:172.16.219.31 Bcast:172.16.219.255 > > > > Mask:255.255.255.0 > > > > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > > > > > > > > RX packets:127 errors:0 dropped:0 overruns:0 > > > > frame:0 > > > > TX packets:65 errors:0 dropped:0 overruns:0 > > > > carrier:0 > > > > collisions:0 txqueuelen:1000 > > > > > > > > RX bytes:18387 (17.9 KiB) TX bytes:6072 (5.9 KiB) > > > > > > > > > > > > > > > > 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:16 errors:0 dropped:0 overruns:0 frame:0 > > > > > > > > TX packets:16 errors:0 dropped:0 overruns:0 > > > > carrier:0 > > > > collisions:0 txqueuelen:0 > > > > > > > > RX bytes:1168 (1.1 KiB) TX bytes:1168 (1.1 KiB) > > > > > > > > ***After ifdown eth0 *** > > > > [root@vt-edwin ~]# ifconfig > > > > > > > > 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:16 errors:0 dropped:0 overruns:0 frame:0 > > > > > > > > TX packets:16 errors:0 dropped:0 overruns:0 > > > > carrier:0 > > > > collisions:0 txqueuelen:0 > > > > > > > > RX bytes:1168 (1.1 KiB) TX bytes:1168 (1.1 KiB) > > > > > > > > > > > > but > > > > [root@vt-edwin ~]# ifconfig -a > > > > eth0 Link encap:Ethernet HWaddr 00:0C:F1:FE:4C:5B > > > > inet addr:172.16.219.31 Bcast:172.16.219.255 > > > > Mask:255.255.255.0 > > > > BROADCAST MULTICAST MTU:1500 Metric:1 > > > > RX packets:182 errors:0 dropped:0 overruns:0 frame:0 > > > > TX packets:66 errors:0 dropped:0 overruns:0 carrier:0 > > > > collisions:0 txqueuelen:1000 > > > > RX bytes:25284 (24.6 KiB) TX bytes:6196 (6.0 KiB) > > > > > > > > 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:16 errors:0 dropped:0 overruns:0 frame:0 > > > > TX packets:16 errors:0 dropped:0 overruns:0 carrier:0 > > > > collisions:0 txqueuelen:0 > > > > RX bytes:1168 (1.1 KiB) TX bytes:1168 (1.1 KiB) > > > > > > > > veth0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 > > > > BROADCAST 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) > > > > > > > > vif0.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF > > > > BROADCAST 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) > > > > > > > > Ian Pratt <mailto:m+Ian.Pratt@xxxxxxxxxxxx> scribbled on > > > > 2005å8æ16æ 23:41: > > > > > > > > >> ian, > > > > >> as the discussion in this thread, service os netwok will > > > > break after > > > > >> xend start. > > > > >> this simple patch can work on my mahine. > > > > >> but strange error still occur in xend.log and xend start > > > > takes more > > > > >> time with ifdown/ifup. > > > > > > > > > > I guess the patch can't do any harm, but why doesn't ifdown > > > > remove the > > > > > routes? > > > > > > > > > > Before starting xend, please can you post the output of the > > > > following > > > > > sequence: > > > > > > > > > > ifconfig > > > > > ifdown eth0 > > > > > ifconfig > > > > > > > > > > Thanks, > > > > > Ian > > > > > > > > > > > > > > >> @@ -192,6 +192,7 @@ > > > > >> ifconfig p${netdev} -arp down > > > > >> ifconfig p${netdev} hw ether fe:ff:ff:ff:ff:ff > > > > >> ifconfig ${netdev} hw ether ${mac} > > > > >> + del_addrs p${netdev} > > > > >> add_to_bridge ${bridge} vif0.0 > > > > >> add_to_bridge ${bridge} p${netdev} > > > > >> ip link set vif0.0 up > > > > >> > > > > >> > > > > >> --------------xend.log------------------------ > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + set -e > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + OP=start > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + shift > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + for arg in '"$@"' > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + export bridge=xen-br0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + bridge=xen-br0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + for arg in '"$@"' > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + export antispoof=no > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + antispoof=no > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + bridge=xen-br0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + netdev=eth0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + antispoof=no > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + echo '*network start bridge=xen-br0 netdev=eth0 antispoof=no' > > > > >> [2005-08-16 23:14:19 xend] INFO (__init__:988) > > [network-bridge] > > > > >> network start bridge=xen-br0 netdev=eth0 antispoof=no > > [2005-08-16 > > > > >> 23:14:19 xend] ERROR (__init__:988) [network-bridge] + > > > > case ${OP} in > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + op_start > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + '[' xen-br0 == null ']' [2005-08-16 23:14:19 xend] ERROR > > > > >> (__init__:988) [network-bridge] + create_bridge xen-br0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + local bridge=xen-br0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + brctl show > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + grep -q xen-br0 > > > > >> [2005-08-16 23:14:19 xend] INFO (__init__:988) EVENT> > > xend.start > > > > >> 0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + brctl addbr xen-br0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + brctl stp xen-br0 off > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + brctl setfd xen-br0 0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + ifconfig xen-br0 up > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + ifconfig > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + grep -q veth0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + ifconfig veth0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + grep -q veth0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > > > [network-bridge] ++ > > > > >> ifconfig eth0 > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > > > [network-bridge] ++ > > > > >> grep HWadd > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > > > [network-bridge] ++ > > > > >> sed -e 's/.*\(..:..:..:..:..:..\).*/\1/' > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + mac=00:0C:F1:FE:4C:5B > > > > >> [2005-08-16 23:14:19 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + ifdown eth0 > > > > >> [2005-08-16 23:14:20 xend] ERROR (__init__:988) > > > > [network-bridge] + ip > > > > >> link set eth0 name peth0 > > > > >> [2005-08-16 23:14:20 xend] ERROR (__init__:988) > > > > [network-bridge] + ip > > > > >> link set veth0 name eth0 > > > > >> [2005-08-16 23:14:20 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + ifconfig peth0 -arp down > > > > >> [2005-08-16 23:14:20 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + ifconfig peth0 hw ether fe:ff:ff:ff:ff:ff > > > > >> [2005-08-16 23:14:20 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + ifconfig eth0 hw ether 00:0C:F1:FE:4C:5B > > > > >> [2005-08-16 23:14:20 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + del_addrs peth0 > > > > >> [2005-08-16 23:14:20 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + local src=peth0 > > > > >> [2005-08-16 23:14:20 xend] ERROR (__init__:988) > > > > [network-bridge] + ip > > > > >> addr show dev peth0 > > > > >> [2005-08-16 23:14:20 xend] ERROR (__init__:988) > > [network-bridge] > > > > >> + egrep '^ *inet ' > > > > >> > > > > >> Best Rgds > > > > >> Edwin > > > > > > > _______________________________________________ > > > Xen-devel mailing list > > > Xen-devel@xxxxxxxxxxxxxxxxxxx > > > http://lists.xensource.com/xen-devel > > -- > > Regards, > > > > David F Barrera > > Linux Technology Center > > Systems and Technology Group, IBM > > > > "The wisest men follow their own direction. " > > Euripides > > > > -- Regards, David F Barrera Linux Technology Center Systems and Technology Group, IBM "The wisest men follow their own direction. " Euripides _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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