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Message-ID: <4C6E2752.6020405@fs.uni-ruse.bg> Date: Fri, 20 Aug 2010 09:57:22 +0300 From: Plamen Petrov <pvp-lsts@...uni-ruse.bg> To: Eric Dumazet <eric.dumazet@...il.com> CC: Andrew Morton <akpm@...ux-foundation.org>, netdev@...r.kernel.org, bugzilla-daemon@...zilla.kernel.org, bugme-daemon@...zilla.kernel.org Subject: Re: [Bugme-new] [Bug 16626] New: Machine hangs with EIP at skb_copy_and_csum_dev На 20.8.2010 г. 09:34, Eric Dumazet написа: > Le vendredi 20 août 2010 à 09:26 +0300, Plamen Petrov a écrit : >> Posting this only in the hope that it will be helpfull to the >> "net guys"... > > Its a forwarding setup. > > Please post > > ifconfig -a > iptables -nvL > iptables -t nat -nvL > iptables -t mangle -nvL > ip route > ethtool -k eth0 (& eth1 ...) > > Try to disable gro ? > ethtool -K eth0 gro off > ethtool -K eth1 gro off > > Here goes the output of the above: root@fs:~# ifconfig -a > eth0 Link encap:Ethernet HWaddr 00:0E:2E:5C:27:EF > inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0 > inet6 addr: fe80::20e:2eff:fe5c:27ef/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:40986 errors:0 dropped:0 overruns:0 frame:0 > TX packets:32825 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:36081064 (34.4 MiB) TX bytes:6457150 (6.1 MiB) > Interrupt:18 Base address:0xe00 > > eth1 Link encap:Ethernet HWaddr 00:1A:A0:38:8A:1B > inet addr:192.168.10.1 Bcast:192.168.10.255 Mask:255.255.255.0 > inet6 addr: fe80::21a:a0ff:fe38:8a1b/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:1220443 errors:0 dropped:0 overruns:0 frame:0 > TX packets:568452 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:1477959893 (1.3 GiB) TX bytes:144840881 (138.1 MiB) > Interrupt:17 > > eth2 Link encap:Ethernet HWaddr 00:0E:2E:5C:27:E6 > inet addr:192.168.199.1 Bcast:192.168.199.255 Mask:255.255.255.0 > inet6 addr: fe80::20e:2eff:fe5c:27e6/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:1119 errors:0 dropped:0 overruns:0 frame:0 > TX packets:1149 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:210401 (205.4 KiB) TX bytes:505063 (493.2 KiB) > Interrupt:16 Base address:0x4f00 > > gre0 Link encap:UNSPEC HWaddr 00-00-00-00-FF-00-73-69-00-00-00-00-00-00-00-00 > NOARP MTU:1476 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) > > ifb0 Link encap:Ethernet HWaddr 96:9F:C4:43:78:01 > BROADCAST NOARP 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:32 > RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) > > ifb1 Link encap:Ethernet HWaddr EA:B9:BD:02:C1:77 > BROADCAST NOARP 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:32 > RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) > > ip6tnl0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 > NOARP MTU:1460 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) > > lo Link encap:Local Loopback > inet addr:127.0.0.1 Mask:255.0.0.0 > inet6 addr: ::1/128 Scope:Host > UP LOOPBACK RUNNING MTU:16436 Metric:1 > RX packets:13546 errors:0 dropped:0 overruns:0 frame:0 > TX packets:13546 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:1051287 (1.0 MiB) TX bytes:1051287 (1.0 MiB) > > sit0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-73-69-00-00-00-00-00-00-00-00 > NOARP MTU:1480 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) > > sixxs_t Link encap:UNSPEC HWaddr C0-A8-01-02-00-00-73-69-00-00-00-00-00-00-00-00 > inet6 addr: 2001:15c0:65ff:64::2/64 Scope:Global > inet6 addr: fe80::c0a8:102/128 Scope:Link > UP POINTOPOINT RUNNING NOARP MTU:1280 Metric:1 > RX packets:145 errors:0 dropped:0 overruns:0 frame:0 > TX packets:145 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:15080 (14.7 KiB) TX bytes:15080 (14.7 KiB) > > teql0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 > NOARP 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:100 > RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) > > tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 > inet addr:192.168.11.1 P-t-P:192.168.11.2 Mask:255.255.255.255 > UP POINTOPOINT 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:100 > RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) > > tunl0 Link encap:IPIP Tunnel HWaddr > NOARP MTU:1480 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) > root@fs:~# iptables -nvL > Chain INPUT (policy ACCEPT 1207K packets, 1455M bytes) > pkts bytes target prot opt in out source destination > 0 0 DROP tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:53 > 0 0 DROP udp -- eth0 * 0.0.0.0/0 0.0.0.0/0 udp dpt:53 > 0 0 DROP tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:135 > 0 0 DROP tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:137 > 0 0 DROP tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:138 > 0 0 DROP tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:139 > 0 0 DROP tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:445 > 0 0 DROP tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:993 > 0 0 DROP udp -- eth0 * 0.0.0.0/0 0.0.0.0/0 udp dpt:135 > 0 0 DROP udp -- eth0 * 0.0.0.0/0 0.0.0.0/0 udp dpt:137 > 0 0 DROP udp -- eth0 * 0.0.0.0/0 0.0.0.0/0 udp dpt:138 > 0 0 DROP udp -- eth0 * 0.0.0.0/0 0.0.0.0/0 udp dpt:139 > 0 0 DROP udp -- eth0 * 0.0.0.0/0 0.0.0.0/0 udp dpt:445 > 0 0 DROP udp -- eth0 * 0.0.0.0/0 0.0.0.0/0 udp dpt:993 > > Chain FORWARD (policy DROP 0 packets, 0 bytes) > pkts bytes target prot opt in out source destination > 0 0 ACCEPT all -- tun0 * 0.0.0.0/0 0.0.0.0/0 > 0 0 ACCEPT all -- * tun0 0.0.0.0/0 0.0.0.0/0 > 0 0 ACCEPT all -- eth2 eth1 192.168.199.15 192.168.10.0/24 > 0 0 REJECT all -- eth2 * 0.0.0.0/0 192.168.1.1 reject-with icmp-net-unreachable > 0 0 REJECT all -- eth1 * 0.0.0.0/0 192.168.1.1 reject-with icmp-net-unreachable > 29650 5450K ACCEPT all -- eth1 eth0 192.168.10.0/24 !192.168.1.1 > 821 165K ACCEPT all -- eth2 eth0 192.168.199.0/24 !192.168.1.1 > 0 0 ACCEPT all -- eth2 eth1 192.168.199.0/24 192.168.10.5 > 624 438K ACCEPT tcp -- * eth2 0.0.0.0/0 192.168.199.0/24 tcp flags:!0x17/0x02 > 33228 34M ACCEPT tcp -- * eth1 0.0.0.0/0 192.168.10.0/24 tcp flags:!0x17/0x02 > 199 14395 ACCEPT !tcp -- * eth2 0.0.0.0/0 192.168.199.0/24 > 2891 597K ACCEPT !tcp -- * eth1 0.0.0.0/0 192.168.10.0/24 > > Chain OUTPUT (policy ACCEPT 546K packets, 100M bytes) > pkts bytes target prot opt in out source destination root@fs:~# iptables -t nat -nvL > Chain PREROUTING (policy DROP 701 packets, 94310 bytes) > pkts bytes target prot opt in out source destination > 0 0 LOG tcp -- eth1 * 192.168.10.0/24 !192.168.10.1 tcp dpt:25 LOG flags 0 level 4 > 0 0 DROP tcp -- eth1 * 192.168.10.0/24 !192.168.10.1 tcp dpt:25 > 0 0 LOG tcp -- eth2 * 192.168.199.0/24 !192.168.199.1 tcp dpt:25 LOG flags 0 level 4 > 0 0 DROP tcp -- eth2 * 192.168.199.0/24 !192.168.199.1 tcp dpt:25 > 0 0 LOG tcp -- tun0 * 192.168.11.0/24 !192.168.11.1 tcp dpt:25 LOG flags 0 level 4 > 0 0 DROP tcp -- tun0 * 192.168.11.0/24 !192.168.11.1 tcp dpt:25 > 0 0 ACCEPT all -- tun0 * 0.0.0.0/0 0.0.0.0/0 > 0 0 ACCEPT all -- * * 0.0.0.0/0 192.168.11.0/24 > 0 0 ACCEPT all -- * * 192.168.11.0/24 0.0.0.0/0 > 0 0 DROP tcp -- * * 87.249.45.135 0.0.0.0/0 tcp dpts:20:22 > 0 0 ACCEPT all -- eth0 * 212.18.63.73 192.168.1.2 > 0 0 ACCEPT all -- eth2 * 192.168.199.15 192.168.10.0/24 > 0 0 DROP all -- eth2 * 192.168.199.0/24 192.168.10.0/24 > 0 0 DROP all -- eth1 * 192.168.10.0/24 192.168.199.0/24 > 5629 597K ACCEPT all -- eth1 * 192.168.10.0/24 0.0.0.0/0 > 262 26231 ACCEPT all -- eth2 * 192.168.199.0/24 0.0.0.0/0 > 0 0 ACCEPT tcp -- * * 0.0.0.0/0 192.168.1.2 tcp dpt:21 state NEW,ESTABLISHED > 0 0 ACCEPT tcp -- * * 0.0.0.0/0 192.168.1.2 tcp spts:1024:65535 dpts:1024:65535 state RELATED,ESTABLISHED > 0 0 ACCEPT tcp -- * * 0.0.0.0/0 192.168.1.2 tcp dpts:20:21 flags:0x17/0x02 > 0 0 ACCEPT tcp -- * * 77.0.0.0/8 192.168.1.2 tcp dpt:22 flags:0x17/0x02 > 0 0 ACCEPT tcp -- * * 87.0.0.0/8 192.168.1.2 tcp dpt:22 flags:0x17/0x02 > 0 0 ACCEPT tcp -- * * 90.0.0.0/8 192.168.1.2 tcp dpt:22 flags:0x17/0x02 > 0 0 ACCEPT tcp -- * * 95.0.0.0/8 192.168.1.2 tcp dpt:22 flags:0x17/0x02 > 0 0 ACCEPT tcp -- * * 212.45.77.11 192.168.1.2 tcp dpt:22 flags:0x17/0x02 > 0 0 LOG tcp -- * * 0.0.0.0/0 192.168.1.2 tcp dpt:22 flags:0x17/0x02 LOG flags 0 level 4 > 0 0 DROP tcp -- * * 0.0.0.0/0 192.168.1.2 tcp dpt:22 flags:0x17/0x02 > 11 628 ACCEPT tcp -- * * 0.0.0.0/0 192.168.1.2 tcp dpt:25 flags:0x17/0x02 > 2 96 ACCEPT tcp -- * * 0.0.0.0/0 192.168.1.2 tcp dpt:80 flags:0x17/0x02 > 2 100 ACCEPT tcp -- * * 0.0.0.0/0 192.168.1.2 tcp dpt:443 flags:0x17/0x02 > 0 0 ACCEPT tcp -- * * 0.0.0.0/0 192.168.1.2 tcp dpt:41414 flags:0x17/0x02 > 1197 58544 DROP tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp flags:0x17/0x02 > 0 0 ACCEPT tcp -- eth0 * 0.0.0.0/0 192.168.1.2 tcp dpts:1023:65500 > 6 2006 ACCEPT udp -- eth1 * 0.0.0.0 255.255.255.255 udp spts:67:68 dpts:67:68 > 1 328 ACCEPT udp -- eth2 * 0.0.0.0 255.255.255.255 udp spts:67:68 dpts:67:68 > > Chain OUTPUT (policy ACCEPT 2685 packets, 196K bytes) > pkts bytes target prot opt in out source destination > > Chain POSTROUTING (policy ACCEPT 2656 packets, 186K bytes) > pkts bytes target prot opt in out source destination > 1 124 ACCEPT all -- * eth0 192.168.1.2 212.18.63.73 > 0 0 ACCEPT tcp -- * eth0 192.168.1.2 0.0.0.0/0 tcp spts:1024:65535 dpts:1024:65535 state RELATED,ESTABLISHED > 0 0 ACCEPT tcp -- * eth0 192.168.1.2 0.0.0.0/0 tcp spt:20 state RELATED,ESTABLISHED > 0 0 SNAT all -- * eth0 192.168.10.16/29 0.0.0.0/0 to:192.168.1.2 > 4 192 SNAT all -- * eth0 192.168.10.24/29 0.0.0.0/0 to:192.168.1.2 > 0 0 SNAT all -- * eth0 192.168.10.32/29 0.0.0.0/0 to:192.168.1.2 > 0 0 SNAT all -- * eth0 192.168.10.40/29 0.0.0.0/0 to:192.168.1.2 > 0 0 SNAT all -- * eth0 192.168.10.48/29 0.0.0.0/0 to:192.168.1.2 > 0 0 SNAT all -- * eth0 192.168.10.56/29 0.0.0.0/0 to:192.168.1.2 > 0 0 SNAT all -- * eth0 192.168.10.64/28 0.0.0.0/0 to:192.168.1.2 > 4893 516K SNAT all -- * eth0 192.168.10.0/24 0.0.0.0/0 to:192.168.1.2 > 211 16721 SNAT all -- * eth0 192.168.199.0/24 0.0.0.0/0 to:192.168.1.2 > 24 8328 ACCEPT udp -- * eth1 192.168.10.1 255.255.255.255 udp spts:67:68 dpts:67:68 > 4 1388 ACCEPT udp -- * eth2 192.168.199.1 255.255.255.255 udp spts:67:68 dpts:67:68 > 0 0 DROP all -- * * 0.0.0.0 0.0.0.0/0 root@fs:~# iptables -t mangle -nvL > Chain PREROUTING (policy ACCEPT 1287K packets, 1508M bytes) > pkts bytes target prot opt in out source destination > > Chain INPUT (policy ACCEPT 1212K packets, 1461M bytes) > pkts bytes target prot opt in out source destination > > Chain FORWARD (policy ACCEPT 73581 packets, 47M bytes) > pkts bytes target prot opt in out source destination > > Chain OUTPUT (policy ACCEPT 548K packets, 100M bytes) > pkts bytes target prot opt in out source destination > > Chain POSTROUTING (policy ACCEPT 622K packets, 147M bytes) > pkts bytes target prot opt in out source destination root@fs:~# ip route > 192.168.11.2 dev tun0 proto kernel scope link src 192.168.11.1 > 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.2 > 192.168.199.0/24 dev eth2 proto kernel scope link src 192.168.199.1 > 192.168.11.0/24 via 192.168.11.2 dev tun0 > 192.168.10.0/24 dev eth1 proto kernel scope link src 192.168.10.1 > 127.0.0.0/8 dev lo scope link > default via 192.168.1.1 dev eth0 metric 1 root@fs:~# ethtool -k eth0 > Offload parameters for eth0: > rx-checksumming: on > tx-checksumming: on > scatter-gather: on > tcp segmentation offload: off > udp fragmentation offload: off > generic segmentation offload: on root@fs:~# ethtool -k eth1 > Offload parameters for eth1: > rx-checksumming: on > tx-checksumming: on > scatter-gather: on > tcp segmentation offload: on > udp fragmentation offload: off > generic segmentation offload: on root@fs:~# ethtool -k eth2 > Offload parameters for eth2: > rx-checksumming: on > tx-checksumming: on > scatter-gather: on > tcp segmentation offload: off > udp fragmentation offload: off > generic segmentation offload: on root@fs:~# uname -a > Linux fs 2.6.34.4-FS #1 SMP Thu Aug 19 18:09:58 UTC 2010 i686 Intel(R) Pentium(R) D CPU 3.00GHz 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