Comment 0 for bug 655413

After resuming from suspend today, network manager was showing the no connection, no wireless signal, which was odd since I am on a desktop with no wireless card. I checked dmesg and it seems that there had been a kernel OOPS in network manager:

Restarting tasks ... done.
NetworkManager: page allocation failure. order:3, mode:0x4020
Pid: 1076, comm: NetworkManager Not tainted 2.6.35-22-generic #33-Ubuntu
Call Trace:

 [<ffffffff81108253>] __alloc_pages_slowpath+0x583/0x590
 [<ffffffff813d69f0>] ? ata_scsi_rw_xlat+0x0/0x200
 [<ffffffff811083fa>] __alloc_pages_nodemask+0x19a/0x1f0
 [<ffffffff8113fb02>] kmalloc_large_node+0x62/0xb0
 [<ffffffff8114367c>] __kmalloc_node_track_caller+0x13c/0x1f0
 [<ffffffff8148fcd6>] ? __netdev_alloc_skb+0x36/0x60
 [<ffffffff8148f9c3>] __alloc_skb+0x83/0x170
 [<ffffffff81049964>] ? scale_rt_power+0x24/0x70
 [<ffffffff8148fcd6>] __netdev_alloc_skb+0x36/0x60
 [<ffffffffa002f1fc>] rtl8169_rx_fill+0xbc/0x260 [r8169]
 [<ffffffff81010de0>] ? nommu_map_page+0x0/0xc0
 [<ffffffffa002fe63>] rtl8169_init_ring+0x73/0xb0 [r8169]
 [<ffffffffa0030141>] rtl8169_open+0x1b1/0x460 [r8169]
 [<ffffffff8149b297>] __dev_open+0xa7/0xf0
 [<ffffffff814996e1>] __dev_change_flags+0xa1/0x180
 [<ffffffff8149b1a8>] dev_change_flags+0x28/0x70
 [<ffffffff814a8c35>] do_setlink+0x1e5/0x840
 [<ffffffff8148b4fc>] ? sock_rmalloc+0x3c/0xa0
 [<ffffffff8148f98f>] ? __alloc_skb+0x4f/0x170
 [<ffffffff812ccef4>] ? nla_parse+0x34/0x110
 [<ffffffff814a968e>] rtnl_setlink+0x11e/0x170
 [<ffffffff814a86c7>] rtnetlink_rcv_msg+0x177/0x290
 [<ffffffff814a8550>] ? rtnetlink_rcv_msg+0x0/0x290
 [<ffffffff814c2089>] netlink_rcv_skb+0xa9/0xd0
 [<ffffffff814a8535>] rtnetlink_rcv+0x25/0x40
 [<ffffffff814c1cee>] netlink_unicast+0x2de/0x2f0
 [<ffffffff814c2aee>] netlink_sendmsg+0x1fe/0x2e0
 [<ffffffff81488023>] sock_sendmsg+0xf3/0x120
 [<ffffffff81488023>] ? sock_sendmsg+0xf3/0x120
 [<ffffffff81486ae5>] ? move_addr_to_kernel+0x65/0x70
 [<ffffffff81492db8>] ? verify_iovec+0x88/0xe0
 [<ffffffff81488b10>] sys_sendmsg+0x240/0x3a0
 [<ffffffff8116a11f>] ? destroy_inode+0x2f/0x60
 [<ffffffff81488228>] ? sys_sendto+0x178/0x180
 [<ffffffff811542e9>] ? __fput+0x199/0x210
 [<ffffffff8148921e>] ? sys_recvmsg+0x6e/0x80
 [<ffffffff8100a0f2>] system_call_fastpath+0x16/0x1b

 Mem-Info:
 Node 0 DMA per-cpu:
 CPU 0: hi: 0, btch: 1 usd: 0
 CPU 1: hi: 0, btch: 1 usd: 0
 Node 0 DMA32 per-cpu:
 CPU 0: hi: 186, btch: 31 usd: 39
 CPU 1: hi: 186, btch: 31 usd: 162
 active_anon:79068 inactive_anon:39694 isolated_anon:0
  active_file:162226 inactive_file:157712 isolated_file:0
  unevictable:4 dirty:27 writeback:0 unstable:0
  free:9229 slab_reclaimable:10662 slab_unreclaimable:5553
  mapped:18263 shmem:1642 pagetables:7742 bounce:0
 Node 0 DMA free:8032kB min:40kB low:48kB high:60kB active_anon:0kB inactive_anon:0kB active_file:3540k
 lowmem_reserve[]: 0 2003 2003 2003
 Node 0 DMA32 free:29008kB min:5704kB low:7128kB high:8556kB active_anon:316272kB inactive_anon:158776k
 lowmem_reserve[]: 0 0 0 0
 Node 0 DMA: 10*4kB 9*8kB 7*16kB 2*32kB 1*64kB 2*128kB 3*256kB 1*512kB 2*1024kB 2*2048kB 0*4096kB = 803
 Node 0 DMA32: 888*4kB 1742*8kB 690*16kB 7*32kB 0*64kB 0*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096
 321554 total pagecache pages
 0 pages in swap cache
 Swap cache stats: add 0, delete 0, find 0/0
 Free swap = 0kB
 Total swap = 0kB
 523984 pages RAM
 9977 pages reserved
 320787 pages shared
 351164 pages non-shared