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Subjectkernel BUG at net/core/dev.c:3031! (kernel 2.6.5-rc1)

Each day, my ISP disconnects my pppoe session.
For the first time, i've a kernel bug that produce a crash of pppd, and
cannot restart connection before restarting my computer.
I haven't been able to reproduce the problem manually.
It's very closed to my last mail: http://lkml.org/lkml/2004/3/31/109
Jeff Garzik said me this may be caused by a corruption of my realtek
8139 with 8139_RXBUF_IDX=3. But now, this option disappeared.

my kernel version: Linux greg-port 2.6.6-rc2-mm1 #1 Sat Apr 24 13:41:12
CEST 2004 i686 GNU/Linux

Here the bug report in /var/log/message:
May 4 21:46:38 greg-port pppd[1016]: Connection terminated.
May 4 21:46:38 greg-port pppd[1016]: Connect time 1440.0 minutes.
May 4 21:46:38 greg-port pppd[1016]: Sent 429883861 bytes, received
832906312 bytes.
May 4 21:46:38 greg-port kernel: ------------[ cut here ]------------
May 4 21:46:38 greg-port kernel: kernel BUG at net/core/dev.c:3040!
May 4 21:46:38 greg-port kernel: invalid operand: 0000 [#1]
May 4 21:46:38 greg-port kernel: PREEMPT
May 4 21:46:38 greg-port kernel: CPU: 0
May 4 21:46:38 greg-port kernel: EIP: 0060:[<c02e6eae>] Not
tainted VLI
May 4 21:46:38 greg-port kernel: EFLAGS: 00010297 (2.6.6-rc2-mm1)
May 4 21:46:38 greg-port kernel: EIP is at free_netdev+0x2b/0x44
May 4 21:46:38 greg-port kernel: eax: c498d800 ebx: df07e000 ecx:
c03d4440 edx: 00000003
May 4 21:46:38 greg-port kernel: esi: c498d800 edi: c1742880 ebp:
e189d600 esp: df07ff48

May 4 21:46:38 greg-port kernel: Process pppd (pid: 1016,
threadinfo=df07e000 task=df0672b0)
May 4 21:46:38 greg-port kernel: Stack: e189b148 c498d800 00000282
d472a780 c1742880 00000000 dfde4200 def70624
May 4 21:46:38 greg-port kernel: e1898081 c1742880 cba67780
c0147afb def70624 cba67780 dfa73680 cba67780
May 4 21:46:38 greg-port kernel: 00000000 df393280 df07e000
c01463d9 cba67780 df393280 df393280 cba67780
May 4 21:46:38 greg-port kernel: Call Trace:
May 4 21:46:38 greg-port kernel: [<e189b148>]
ppp_shutdown_interface+0x83/0xe5 [ppp_generic]
May 4 21:46:38 greg-port kernel: [<e1898081>] ppp_release+0x5f/0x61
[ppp_generic]
May 4 21:46:38 greg-port kernel: [<c0147afb>] __fput+0x108/0x11a
May 4 21:46:38 greg-port kernel: [<c01463d9>] filp_close+0x59/0x86
May 4 21:46:38 greg-port kernel: [<c0146469>] sys_close+0x63/0x96
May 4 21:46:38 greg-port kernel: [<c01057fb>] syscall_call+0x7/0xb
May 4 21:46:38 greg-port kernel:
May 4 21:46:38 greg-port kernel: Code: 8b 44 24 04 8b 90 3c 01 00 00 85
d2 74 27 83 fa 04 75 18 c7 80 3c 01 00 00 05 00 00 00 05 a0 01 00 00 89
44 24 04 e9 dd b7 f4 ff <0f> 0b e0 0b 9f 59 37 c0 eb de 2b 80 00 02 00
00 89 44 24 04 e9


Thank you all for the good work with linux, keep up with it ! :)

--
Auzanneau Grégory
GPG 0x99137BEE

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