Christian Gennerat a �crit :
> irnet1 is a pc running irnet with irattach /dev/ttyS0
> irnet2 is a pc running irnet with irattach irda0 (alias irda0 toshoboe.o)
> when irnet2 does "ping irnet1", it is good, with a 500ms response.
> when irnet2 does "ping -f irnet1"
> I get an Oops in irnet1.
This oops happened several times
irttp_data_request_Rbb400e5c(), No data, or not connected
irnet: ppp_irnet_send(): IrTTP doesn't like this packet !!! (0xFFFFFF95)
Warning: kfree_skb passed an skb still on a list (from c3071e5e).
kernel BUG at skbuff.c:276!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c018a058>]
EFLAGS: 00010292
eax: 0000001c ebx: c1f13a80 ecx: 00000001 edx: 00000001
esi: c1f13a80 edi: c1aa6200 ebp: c1f13a80 esp: c0205ca8
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c0205000)
Stack: c01e0b61 c01e0c80 00000114 c1aa6200 c3071e43 c3071e5e c1f13a80 c1888b80
c1888b80 c17f9844 c17f9844 c1aa6200 00000000 c306d3fb c1aa6260 c1f13a80
c1aa6648 c306cf1e c1888b80 c1aa6648 c1aa6600 c306d57a c1888b80 c1aa6648
Call Trace: [<c01e0b61>] [<c01e0c80>] [<c3071e43>] [<c3071e5e>] [<c306d3fb>]
[<c306cf1e>] [<c306d57a>]
[<c306deb1>] [<c3072af8>] [<c304f42a>] [<c304f2e6>] [<c3071e31>] [<c306d3fb>]
[<c306d386>] [<c306cf6d>]
[<c306cd14>] [<c018f57e>] [<c018ba6c>] [<c01957dd>] [<c0196469>] [<c01accdf>]
[<c01acabc>] [<ea000201>]
[<ea000201>] [<c01ad293>] [<c0189fde>] [<c01ad548>] [<c0192fbf>] [<c019332d>]
[<c018bf03>] [<c01197ce>]
[<c010a138>] [<c0107160>] [<c0108e60>] [<c0107160>] [<c0107183>] [<c01071da>]
[<c0105000>] [<c0100191>]
Code: 0f 0b 83 c4 0c 8b 4c 24 0c 8b 51 2c 85 d2 74 07 ff 4a 04 8b
>>EIP; c018a058 <__kfree_skb+34/160> <=====
Trace; c01e0b61 <vga_con+821/25c5>
Trace; c01e0c80 <vga_con+940/25c5>
Trace; c3071e43 <[irnet]ppp_irnet_send+1c7/1f4>
Trace; c3071e5e <[irnet]ppp_irnet_send+1e2/1f4>
Trace; c306d3fb <[ppp_generic]ppp_push+3b/98>
Trace; c306cf1e <[ppp_generic]ppp_xmit_process+12/d0>
Trace; c306d57a <[ppp_generic]ppp_channel_push+122/134>
Trace; c306deb1 <[ppp_generic]ppp_output_wakeup+11/18>
Trace; c3072af8 <[irnet]irnet_flow_indication+20/24>
Trace; c304f42a <[irda]irttp_run_tx_queue+13a/154>
Trace; c304f2e6 <[irda]irttp_data_request+1be/1c8>
Trace; c3071e31 <[irnet]ppp_irnet_send+1b5/1f4>
Trace; c306d3fb <[ppp_generic]ppp_push+3b/98>
Trace; c306d386 <[ppp_generic]ppp_send_frame+3aa/3e4>
Trace; c306cf6d <[ppp_generic]ppp_xmit_process+61/d0>
Trace; c306cd14 <[ppp_generic]ppp_start_xmit+1c0/1fc>
Trace; c018f57e <qdisc_restart+4e/c8>
Trace; c018ba6c <dev_queue_xmit+2c/124>
Trace; c01957dd <ip_output+a5/100>
Trace; c0196469 <ip_build_xmit+27d/31c>
Trace; c01accdf <icmp_reply+19b/1b8>
Trace; c01acabc <icmp_glue_bits+0/88>
Trace; ea000201 <END_OF_CODE+26f8936e/????>
Trace; ea000201 <END_OF_CODE+26f8936e/????>
Trace; c01ad293 <icmp_echo+3f/48>
Trace; c0189fde <kfree_skbmem+26/6c>
Trace; c01ad548 <icmp_rcv+a4/dc>
Trace; c0192fbf <ip_local_deliver+e3/184>
Trace; c019332d <ip_rcv+2cd/350>
Trace; c018bf03 <net_rx_action+11b/1d4>
Trace; c01197ce <do_softirq+4e/74>
Trace; c010a138 <do_IRQ+9c/ac>
Trace; c0107160 <default_idle+0/28>
Trace; c0108e60 <ret_from_intr+0/20>
Trace; c0107160 <default_idle+0/28>
Trace; c0107183 <default_idle+23/28>
Trace; c01071da <cpu_idle+32/48>
Trace; c0105000 <empty_bad_page+0/1000>
Trace; c0100191 <L6+0/2>
Code; c018a058 <__kfree_skb+34/160>
00000000 <_EIP>:
Code; c018a058 <__kfree_skb+34/160> <=====
0: 0f 0b ud2a <=====
Code; c018a05a <__kfree_skb+36/160>
2: 83 c4 0c add $0xc,%esp
Code; c018a05d <__kfree_skb+39/160>
5: 8b 4c 24 0c mov 0xc(%esp,1),%ecx
Code; c018a061 <__kfree_skb+3d/160>
9: 8b 51 2c mov 0x2c(%ecx),%edx
Code; c018a064 <__kfree_skb+40/160>
c: 85 d2 test %edx,%edx
Code; c018a066 <__kfree_skb+42/160>
e: 74 07 je 17 <_EIP+0x17> c018a06f <__kfree_skb+4b/160>
Code; c018a068 <__kfree_skb+44/160>
10: ff 4a 04 decl 0x4(%edx)
Code; c018a06b <__kfree_skb+47/160>
13: 8b 00 mov (%eax),%eax
Aiee, killing interrupt handler
Kernel panic: Attempted to kill the idle task!
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