Package: linux-image-2.6.26-1-openvz-amd64 Version: 2.6.26-13 With the following snippet in /etc/network/interfaces I get a backtrace in the kernel, although it works on another machine with the same image (also same architecture):
auto sit0 iface sit0 inet6 v4tunnel address 2002:4e2e:6774::1 netmask 16 gateway ::192.88.99.1 endpoint 192.88.99.1 local 78.46.103.116 up ip link set mtu 1480 dev sit1 The failure is visible in userland as follows: tanaris:~# ifup sit0 ioctl: No such device Failed to bring up sit0. The backtrace: [87792.025658] kobject_add_internal failed for sit0 with -EEXIST, don't try to register things with the same name in the same directory. [87792.025670] Pid: 16220, comm: modprobe Not tainted 2.6.26-1-openvz-amd64 #1 [87792.025677] [87792.025678] Call Trace: [87792.025698] [<ffffffff8030f33d>] kobject_add_internal+0x13f/0x17e [87792.027044] [<ffffffff8030f77a>] kobject_add+0x74/0x7c [87792.027053] [<ffffffff803f55fb>] __devinet_sysctl_register+0xde/0x114 [87792.027067] [<ffffffff8029b410>] cache_grow+0x1cc/0x262 [87792.027077] [<ffffffff8030f194>] kobject_get+0x12/0x17 [87792.027084] [<ffffffff8037730d>] get_device+0x17/0x1f [87792.027092] [<ffffffff8037792e>] device_add+0x9b/0x53f [87792.027100] [<ffffffff8030ef86>] kobject_init_internal+0x12/0x2c [87792.027111] [<ffffffff803b1015>] register_netdevice+0x282/0x358 [87792.027119] [<ffffffff803b1124>] register_netdev+0x39/0x46 [87792.027128] [<ffffffffa0432309>] :sit:sit_init_net+0xc5/0xe6 [87792.027138] [<ffffffff803adad9>] register_pernet_operations+0x39/0xc5 [87792.027148] [<ffffffff803ade14>] register_pernet_gen_device+0x57/0x95 [87792.027158] [<ffffffffa011004c>] :sit:sit_init+0x4c/0x67 [87792.027166] [<ffffffff8025da65>] sys_init_module+0x190e/0x1aa4 [87792.028519] [<ffffffff803b0d93>] register_netdevice+0x0/0x358 [87792.028545] [<ffffffff8020bffa>] system_call_after_swapgs+0x8a/0x8f [87792.028558] The following, slightly different snippet also fails for the same reason: iface sixxs inet6 v4tunnel address 2001:6f8:900:1a4::2 netmask 64 endpoint 212.224.0.188 ttl 64 up ip link set mtu 1480 dev sixxs up ip route add default via 2001:6f8:900:1a4::1 dev sixxs This is an OpenVZ host. IPsec is enabled, too and created a tun device. But that's both the same on the other server, too. Kind regards, Philipp Kern -- .''`. Philipp Kern Debian Developer : :' : http://philkern.de Release Assistant `. `' xmpp:p...@0x539.de Stable Release Manager `- finger pkern/k...@db.debian.org
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