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Hi,
[ 6421.398151] skb_under_panic: text:c01d7954 len:1504 put:2 head:cb786000 data:cb785fff tail:cb7865df end:cb7>
[ 6421.431624] ------------[ cut here ]------------
[ 6421.445405] Kernel BUG at [verbose debug info unavailable]
[ 6421.461783] invalid opcode: 0000 [#1]
[ 6421.472725] Modules linked in: lp
[ 6421.482755] CPU: 0
[ 6421.482784] EIP: 0060:[<c020c257>] Not tainted VLI
[ 6421.482835] EFLAGS: 00010286 (2.6.18 #1)
[ 6421.517937] EIP is at skb_under_panic+0x37/0x50
[ 6421.531492] eax: 00000082 ebx: 000005e0 ecx: 00000073 edx: 00000000
[ 6421.551776] esi: cac4ee40 edi: c12e43a0 ebp: cac4ee40 esp: c11d3f40
[ 6421.572054] ds: 007b es: 007b ss: 0068
[ 6421.584312] Process ksoftirqd/0 (pid: 2, ti=c11d2000 task=c11cc540 task.ti=c11d2000)
[ 6421.606902] Stack: c028dd44 c01d7954 000005e0 00000002 cb786000 cb785fff cb7865df cb786600
[ 6421.632236] c0280ab7 00000000 c01d7960 c12e43a0 c30a0620 cac4ee40 c12e43a0 c78ad000
[ 6421.657572] c01d80e6 21000246 cac4ee40 cbedc298 cbedc200 cbedc264 c01d9e5f 00000000
[ 6421.682906] Call Trace:
[ 6421.690790] [<c01d7954>] ppp_receive_frame+0x604/0x6e0
[ 6421.706518] [<c01d7960>] ppp_receive_frame+0x610/0x6e0
[ 6421.722216] [<c01d80e6>] ppp_input+0x86/0x100
[ 6421.735542] [<c01d9e5f>] ppp_async_process+0x1f/0x70
[ 6421.750725] [<c0112793>] tasklet_action+0x33/0x60
[ 6421.765159] [<c01126d0>] __do_softirq+0x50/0xa0
[ 6421.779028] [<c01129c0>] ksoftirqd+0x0/0xc0
[ 6421.791860] [<c0112755>] do_softirq+0x35/0x40
[ 6421.805211] [<c0112a35>] ksoftirqd+0x75/0xc0
[ 6421.818303] [<c011ea04>] kthread+0xd4/0xe0
[ 6421.830883] [<c011e930>] kthread+0x0/0xe0
[ 6421.843198] [<c0100c65>] kernel_thread_helper+0x5/0x10
[ 6421.858870] Code: 90 a0 00 00 00 52 8b 90 9c 00 00 00 52 8b 90 98 00 00 00 52 8b 90 94 00 00 00 52 53 8b 58
[ 6421.918345] EIP: [<c020c257>] skb_under_panic+0x37/0x50 SS:ESP 0068:c11d3f40
[ 6421.939512] <0>Kernel panic - not syncing: Fatal exception in interrupt
% uname -a
Linux alea 2.6.18 #1 Thu Dec 20 15:16:05 CET 2007 i586 GNU/Linux
The panic happens when I have a heavy disk access. I can't reproduce it
directly, but reading much data from disk and using pppd with a 56k modem
line triggers the panic.
Ask if you need more infos.
Bye, Jörg.
--
Der Pessimist ist jemand, der vorzeitig die Wahrheit erzählt.
(Cyrano de Bergerac)
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