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Alexey Dobriyan be77e59307 net: fix tunnels in netns after ndo_ changes 
dev_net_set() should be the very first thing after alloc_netdev().

"ndo_" changes turned simple assignment (which is OK to do before netns
assignment) into quite non-trivial operation (which is not OK, init_net was
used). This leads to incomplete initialisation of tunnel device in netns.

BUG: unable to handle kernel NULL pointer dereference at 00000004
IP: [<c02efdb5>] ip6_tnl_exit_net+0x37/0x4f
*pde = 00000000 
Oops: 0000 [#1] PREEMPT DEBUG_PAGEALLOC
last sysfs file: /sys/class/net/lo/operstate

Pid: 10, comm: netns Not tainted (2.6.28-rc6 #1) 
EIP: 0060:[<c02efdb5>] EFLAGS: 00010246 CPU: 0
EIP is at ip6_tnl_exit_net+0x37/0x4f
EAX: 00000000 EBX: 00000020 ECX: 00000000 EDX: 00000003
ESI: c5caef30 EDI: c782bbe8 EBP: c7909f50 ESP: c7909f48
 DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
Process netns (pid: 10, ti=c7908000 task=c7905780 task.ti=c7908000)
Stack:
 c03e75e0 c7390bc8 c7909f60 c0245448 c7390bd8 c7390bf0 c7909fa8 c012577a
 00000000 00000002 00000000 c0125736 c782bbe8 c7909f90 c0308fe3 c782bc04
 c7390bd4 c0245406 c084b718 c04f0770 c03ad785 c782bbe8 c782bc04 c782bc0c
Call Trace:
 [<c0245448>] ? cleanup_net+0x42/0x82
 [<c012577a>] ? run_workqueue+0xd6/0x1ae
 [<c0125736>] ? run_workqueue+0x92/0x1ae
 [<c0308fe3>] ? schedule+0x275/0x285
 [<c0245406>] ? cleanup_net+0x0/0x82
 [<c0125ae1>] ? worker_thread+0x81/0x8d
 [<c0128344>] ? autoremove_wake_function+0x0/0x33
 [<c0125a60>] ? worker_thread+0x0/0x8d
 [<c012815c>] ? kthread+0x39/0x5e
 [<c0128123>] ? kthread+0x0/0x5e
 [<c0103b9f>] ? kernel_thread_helper+0x7/0x10
Code: db e8 05 ff ff ff 89 c6 e8 dc 04 f6 ff eb 08 8b 40 04 e8 38 89 f5 ff 8b 44 9e 04 85 c0 75 f0 43 83 fb 20 75 f2 8b 86 84 00 00 00 <8b> 40 04 e8 1c 89 f5 ff e8 98 04 f6 ff 89 f0 e8 f8 63 e6 ff 5b 
EIP: [<c02efdb5>] ip6_tnl_exit_net+0x37/0x4f SS:ESP 0068:c7909f48
---[ end trace 6c2f2328fccd3e0c ]---

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2008-11-23 17:26:26 -08:00
..
netfilter net: '&' redux 2008-11-03 18:21:05 -08:00
Kconfig ipsec: ipcomp - Merge IPComp implementations 2008-07-25 02:54:40 -07:00
Makefile
…
addrconf.c ip: convert to net_device_ops for ioctl 2008-11-19 22:42:41 -08:00
addrconf_core.c
…
addrlabel.c net: replace %p6 with %pI6 2008-10-29 12:52:50 -07:00
af_inet6.c netns: mib6 section fixlet 2008-10-13 18:54:07 -07:00
ah6.c net: replace %p6 with %pI6 2008-10-29 12:52:50 -07:00
anycast.c net: replace %#p6 format specifier with %pi6 2008-10-29 12:50:24 -07:00
datagram.c ipv6: routing header fixes 2008-11-12 22:59:21 -08:00
esp6.c net: replace %p6 with %pI6 2008-10-29 12:52:50 -07:00
exthdrs.c net: replace %p6 with %pI6 2008-10-29 12:52:50 -07:00
exthdrs_core.c
…
fib6_rules.c netns: Add network namespace argument to rt6_fill_node() and ipv6_dev_get_saddr() 2008-08-14 15:33:21 -07:00
icmp.c include/net net/ - csum_partial - remove unnecessary casts 2008-11-19 15:44:53 -08:00
inet6_connection_sock.c net: convert BUG_TRAP to generic WARN_ON 2008-07-25 21:43:18 -07:00
inet6_hashtables.c net: Convert TCP/DCCP listening hash tables to use RCU 2008-11-23 17:22:55 -08:00
ip6_fib.c netns: Add network namespace argument to rt6_fill_node() and ipv6_dev_get_saddr() 2008-08-14 15:33:21 -07:00
ip6_flowlabel.c net: replace %#p6 format specifier with %pi6 2008-10-29 12:50:24 -07:00
ip6_input.c ipv6: added net argument to IP6_INC_STATS_BH 2008-10-08 11:09:27 -07:00
ip6_output.c net: reduce structures when XFRM=n 2008-10-28 13:24:06 -07:00
ip6_tunnel.c net: fix tunnels in netns after ndo_ changes 2008-11-23 17:26:26 -08:00
ip6mr.c ipmr: convert ipmr virtual interface to net_device_ops 2008-11-20 20:28:35 -08:00
ipcomp6.c net: replace %p6 with %pI6 2008-10-29 12:52:50 -07:00
ipv6_sockglue.c ipv6: routing header fixes 2008-11-12 22:59:21 -08:00
mcast.c include/net net/ - csum_partial - remove unnecessary casts 2008-11-19 15:44:53 -08:00
mip6.c net: convert BUG_TRAP to generic WARN_ON 2008-07-25 21:43:18 -07:00
ndisc.c include/net net/ - csum_partial - remove unnecessary casts 2008-11-19 15:44:53 -08:00
netfilter.c netns: correct mib stats in ip6_route_me_harder() 2008-10-14 22:55:21 -07:00
proc.c net: fix tiny output corruption of /proc/net/snmp6 2008-11-20 04:20:10 -08:00
protocol.c net: remove CVS keywords 2008-06-11 21:00:38 -07:00
raw.c netns: add net parameter to IP6_INC_STATS 2008-10-08 10:54:51 -07:00
reassembly.c net: '&' redux 2008-11-03 18:21:05 -08:00
route.c net: remove struct dst_entry::entry_size 2008-11-11 17:25:22 -08:00
sit.c net: fix tunnels in netns after ndo_ changes 2008-11-23 17:26:26 -08:00
syncookies.c tcp: Fix IPv6 fallout from 'Port redirection support for TCP' 2008-10-19 23:35:58 -07:00
sysctl_net_ipv6.c net: '&' redux 2008-11-03 18:21:05 -08:00
tcp_ipv6.c include/net net/ - csum_partial - remove unnecessary casts 2008-11-19 15:44:53 -08:00
tunnel6.c [IPV6] TUNNEL6: Fix incoming packet length check for inter-protocol tunnel. 2008-06-05 04:02:32 +09:00
udp.c udp: Use hlist_nulls in UDP RCU code 2008-11-16 19:39:21 -08:00
udp_impl.h udp: introduce struct udp_table and multiple spinlocks 2008-10-29 01:41:45 -07:00
udplite.c udp: RCU handling for Unicast packets. 2008-10-29 02:11:14 -07:00
xfrm6_input.c
…
xfrm6_mode_beet.c ipsec: Interfamily IPSec BEET, ipv4-inner ipv6-outer 2008-08-06 02:40:25 -07:00
xfrm6_mode_ro.c
…
xfrm6_mode_transport.c
…
xfrm6_mode_tunnel.c
…
xfrm6_output.c
…
xfrm6_policy.c net: remove struct dst_entry::entry_size 2008-11-11 17:25:22 -08:00
xfrm6_state.c xfrm: Have af-specific init_tempsel() initialize family field of temporary selector 2008-11-04 14:49:19 -08:00
xfrm6_tunnel.c
…