Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP: 
 [<ffffffff804d9881>] skb_unlink+0x3a/0x4b
PGD 64d9067 PUD 7118067 PMD 0 
Oops: 0002 [1] SMP 
CPU 0 
Modules linked in:
Pid: 0, comm: swapper Not tainted 2.6.24-rc2 #27
RIP: 0010:[<ffffffff804d9881>]  [<ffffffff804d9881>] skb_unlink+0x3a/0x4b
RSP: 0018:ffffffff807f1850  EFLAGS: 00010016
RAX: 0000000000000000 RBX: ffff810007034828 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000286 RDI: ffff81000703483c
RBP: ffff81000695be00 R08: ffff81000695be00 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff81000695be00
R13: ffff81000703483c R14: ffff810007034000 R15: ffff81000695be38
FS:  0000000000000000(0000) GS:ffffffff80754000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000000068ef000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper (pid: 0, threadinfo ffffffff8078c000, task ffffffff806ea480)
Stack:  0000000000000002 ffff810007034700 ffff81000695be38 ffffffff8040e6c7
 ffff810007fa0bea 0000000800000e38 0000000000000000 0000000000000000
 ffff810007fa0bb2 000005ea000000be 0000000000000000 0000000000000000
Call Trace:
 <IRQ>  [<ffffffff8040e6c7>] start_xmit+0x1c3/0x29f
 [<ffffffff8054b092>] packet_rcv_spkt+0x120/0x12e
 [<ffffffff804df419>] dev_hard_start_xmit+0x1d6/0x260
 [<ffffffff804ed0b5>] __qdisc_run+0x79/0x174
 [<ffffffff804e15b8>] dev_queue_xmit+0x148/0x280
 [<ffffffff804f9b9a>] ip_queue_xmit+0x2ee/0x341
 [<ffffffff8023cd0c>] lock_timer_base+0x26/0x4c
 [<ffffffff8023cea2>] __mod_timer+0xc3/0xd1
 [<ffffffff805084ea>] tcp_transmit_skb+0x6a6/0x6e3
 [<ffffffff8050454f>] tcp_ack+0x17f5/0x19d0
 [<ffffffff8050a23a>] __tcp_push_pending_frames+0x7a7/0x87f
 [<ffffffff80507635>] tcp_rcv_established+0x65e/0x6ed
 [<ffffffff8050ce04>] tcp_v4_do_rcv+0x30/0x36b
 [<ffffffff8050f27c>] tcp_v4_rcv+0x7dc/0x830
 [<ffffffff804ce41d>] vring_interrupt+0x26/0x3b
 [<ffffffff802208a0>] ack_apic_level+0x10/0xd9
 [<ffffffff804f5216>] ip_local_deliver+0xc9/0x14b
 [<ffffffff804f5752>] ip_rcv+0x4ba/0x4fc
 [<ffffffff8054b092>] packet_rcv_spkt+0x120/0x12e
 [<ffffffff804dedbb>] netif_receive_skb+0x209/0x280
 [<ffffffff8040e38a>] virtnet_poll+0x237/0x321
 [<ffffffff80356d0f>] iowrite16+0x24/0x34
 [<ffffffff804e0e12>] net_rx_action+0x9e/0x155
 [<ffffffff80239749>] __do_softirq+0x55/0xc4
 [<ffffffff80249a48>] hrtimer_interrupt+0x180/0x1b8
 [<ffffffff8020c76c>] call_softirq+0x1c/0x28
 [<ffffffff8020db44>] do_softirq+0x2c/0x7d
 [<ffffffff8021f4aa>] smp_apic_timer_interrupt+0x40/0x52
 [<ffffffff8020a851>] default_idle+0x0/0x3d
 [<ffffffff8020c216>] apic_timer_interrupt+0x66/0x70
 <EOI>  [<ffffffff8020a87a>] default_idle+0x29/0x3d
 [<ffffffff8020a919>] cpu_idle+0x8b/0xae
 [<ffffffff80799a48>] start_kernel+0x2b1/0x2bd
 [<ffffffff8079911d>] _sinittext+0x11d/0x124


Code: 48 89 10 48 89 42 08 5b 41 5c 41 5d e9 69 b0 08 00 41 55 4c 
RIP  [<ffffffff804d9881>] skb_unlink+0x3a/0x4b
 RSP <ffffffff807f1850>
CR2: 0000000000000000
Kernel panic - not syncing: Aiee, killing interrupt handler!