here is what i have found, im using nmap -sT -sU ip:
if I nmap a box on the internet from my gateway it works fine (50ish
seconds). if i nmap the gateway from a local box it also work (1000ish
seconds) but if i nmap a box on the internet from a local box, i get an Oops
on the gateway (pasted at the end)
nmap is how i can replicate it easily, but it does that with a lot of other
applications too (kazaa being one)
---Oops---
Warning (compare_maps): ksyms_base symbol
__VERSIONED_SYMBOL(shmem_file_setup) not found in System.map. Ignoring
ksyms_base entry
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c01e0ec7>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010206
eax: c02f5dc0 ebx: 0000385f ecx: 00000000 edx: 0000385f
esi: c0773950 edi: c02f5e60 ebp: 00000060 esp: c029fddc
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c029f000)
Stack: 00000100 c01e0f6b c0773950 00000100 c0773950 c01e1533 c0773950
c0773950
c0eb8800 c0c15200 c0eb8800 ffffffe6 c01e4516 c0773950 00000002
c093d6f0
c0773950 c01e77d3 c0773950 c0773950 00000000 00000004 c01f1d30
c01f1dad
Call Trace: [<c01e0f6b>] [<c01e1533>] [<c01e4516>] [<c01e77d3>] [<c01f1d30>]
[<c01f1dad>] [<c01e99b7>] [<c01ef3f0>]
[<c01f1d02>] [<c01f1d30>] [<c01ef43a>] [<c01e99b7>] [<c01e05dc>]
[<c01ef394>] [<c01ef3f0>] [<c01ee620>] [<c01ee7a9>]
[<c01ee620>] [<c01e99b7>] [<c01ee466>] [<c01ee620>] [<c01e4b3d>]
[<c011317f>] [<c0108071>] [<c0105140>] [<c0106c60>]
[<c0105140>] [<c0105163>] [<c01051c8>] [<c0105000>] [<c0100197>]
Code: 8b 1b 8b 42 70 83 f8 01 74 0a ff 4a 70 0f 94 c0 84 c0 74 09
>>EIP; c01e0ec7 <skb_drop_fraglist+17/40> <=====
Trace; c01e0f6b <skb_release_data+5b/70>
Trace; c01e1533 <skb_linearize+d3/140>
Trace; c01e4516 <dev_queue_xmit+26/1f0>
Trace; c01e77d3 <neigh_resolve_output+113/190>
Trace; c01f1d30 <ip_finish_output2+0/c0>
Trace; c01f1dad <ip_finish_output2+7d/c0>
Trace; c01e99b7 <nf_hook_slow+e7/130>
Trace; c01ef3f0 <ip_forward_finish+0/50>
Trace; c01f1d02 <ip_finish_output+e2/f0>
Trace; c01f1d30 <ip_finish_output2+0/c0>
Trace; c01ef43a <ip_forward_finish+4a/50>
Trace; c01e99b7 <nf_hook_slow+e7/130>
Trace; c01e05dc <__lock_sock+5c/a0>
Trace; c01ef394 <ip_forward+1a4/200>
Trace; c01ef3f0 <ip_forward_finish+0/50>
Trace; c01ee620 <ip_rcv_finish+0/1c0>
Trace; c01ee7a9 <ip_rcv_finish+189/1c0>
Trace; c01ee620 <ip_rcv_finish+0/1c0>
Trace; c01e99b7 <nf_hook_slow+e7/130>
Trace; c01ee466 <ip_rcv+336/370>
Trace; c01ee620 <ip_rcv_finish+0/1c0>
Trace; c01e4b3d <net_rx_action+19d/280>
Trace; c011317f <do_softirq+3f/70>
Trace; c0108071 <do_IRQ+a1/b0>
Trace; c0105140 <default_idle+0/30>
Trace; c0106c60 <ret_from_intr+0/20>
Trace; c0105140 <default_idle+0/30>
Trace; c0105163 <default_idle+23/30>
Trace; c01051c8 <cpu_idle+38/50>
Trace; c0105000 <prepare_namespace+0/10>
Trace; c0100197 <L6+0/2>
Code; c01e0ec7 <skb_drop_fraglist+17/40>
00000000 <_EIP>:
Code; c01e0ec7 <skb_drop_fraglist+17/40> <=====
0: 8b 1b mov (%ebx),%ebx <=====
Code; c01e0ec9 <skb_drop_fraglist+19/40>
2: 8b 42 70 mov 0x70(%edx),%eax
Code; c01e0ecc <skb_drop_fraglist+1c/40>
5: 83 f8 01 cmp $0x1,%eax
Code; c01e0ecf <skb_drop_fraglist+1f/40>
8: 74 0a je 14 <_EIP+0x14> c01e0edb
<skb_drop_fraglist+2b/40>
Code; c01e0ed1 <skb_drop_fraglist+21/40>
a: ff 4a 70 decl 0x70(%edx)
Code; c01e0ed4 <skb_drop_fraglist+24/40>
d: 0f 94 c0 sete %al
Code; c01e0ed7 <skb_drop_fraglist+27/40>
10: 84 c0 test %al,%al
Code; c01e0ed9 <skb_drop_fraglist+29/40>
12: 74 09 je 1d <_EIP+0x1d> c01e0ee4
<skb_drop_fraglist+34/40>
Kernel panic: Aiee, killing interrupt handler!
2 warnings issued. Results may not be reliable.
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