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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. 3 times (03/24, 03/30,
03/31), this produced a kernel bug that don't allow me to start again
pppd without rebooting my computer. I haven't been able to reproduce the
problem manually. The problem started with kernel 2.6.5-rc1. I never saw
it with 2.6.4 and before.

my kernel version: Linux greg-port 2.6.5-rc1 #1 Fri Mar 19 18:29:21 CET
2004 i686 GNU/Linux

Here the bug report in /var/log/message

Mar 30 17:44:27 greg-port kernel: ------------[ cut here ]------------
Mar 30 17:44:27 greg-port kernel: kernel BUG at net/core/dev.c:3031!
Mar 30 17:44:27 greg-port kernel: invalid operand: 0000 [#1]
Mar 30 17:44:27 greg-port kernel: PREEMPT
Mar 30 17:44:27 greg-port kernel: CPU: 0
Mar 30 17:44:27 greg-port kernel: EIP: 0060:[free_netdev+43/68]
Not tainted
Mar 30 17:44:27 greg-port kernel: EFLAGS: 00210297 (2.6.5-rc1)
Mar 30 17:44:27 greg-port kernel: EIP is at free_netdev+0x2b/0x44
Mar 30 17:44:27 greg-port kernel: eax: de75e400 ebx: d3d56000 ecx:
c03d05a0 edx: 00000003
Mar 30 17:44:27 greg-port kernel: esi: de75e400 edi: de289a80 ebp:
e189e7a0 esp: d3d57f48
Mar 30 17:44:27 greg-port kernel: ds: 007b es: 007b ss: 0068
Mar 30 17:44:27 greg-port kernel: Process pppd (pid: 12530,
threadinfo=d3d56000 task=dbad0dc0)
Mar 30 17:44:27 greg-port kernel: Stack: e189c356 de75e400 00200286
d10c0d80 de289a80 00000000 dfde4240 df1e9b0c
Mar 30 17:44:27 greg-port kernel: e1899081 de289a80 c9a76280
c014b3a0 df1e9b0c c9a76280 df1d8380 c9a76280
Mar 30 17:44:27 greg-port kernel: 00000000 d8c36080 d3d56000
c0149b9d c9a76280 d8c36080 d8c36080 c9a76280
Mar 30 17:44:27 greg-port kernel: Call Trace:
Mar 30 17:44:27 greg-port kernel: [pg0+558187350/1069244416]
ppp_shutdown_interface+0x83/0xe5 [ppp_generic]
Mar 30 17:44:27 greg-port kernel: [pg0+558174337/1069244416]
ppp_release+0x5f/0x61 [ppp_generic]
Mar 30 17:44:27 greg-port kernel: [__fput+264/282] __fput+0x108/0x11a
Mar 30 17:44:27 greg-port kernel: [filp_close+89/134] filp_close+0x59/0x86
Mar 30 17:44:27 greg-port kernel: [sys_close+99/150] sys_close+0x63/0x96
Mar 30 17:44:27 greg-port kernel: [syscall_call+7/11] syscall_call+0x7/0xb
Mar 30 17:44:27 greg-port kernel:
Mar 30 17:44:27 greg-port kernel: Code: 0f 0b d7 0b 04 29 37 c0 eb de 2b
80 00 02 00 00 89 44 24 04

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

--
Auzanneau Grégory
GPG 0x99137BEE
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