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List:       l7-filter-developers
Subject:    Re: [l7-filter-developers] Help,
From:       Matthew Strait <quadong () users ! sourceforge ! net>
Date:       2009-01-07 23:38:00
Message-ID: alpine.DEB.0.99.0901071736050.31318 () strait-desktop
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On Thu, 27 Nov 2008, zhengfish wrote:

>        But when I start some bittorrent traffic on my PC through the box, I
> found the box reboot often. It reboot 3 times in the past 5 hours.
>        I can't know  but want to know the reason, could you help me to do
> it? I'm not sure it is caused by kernel or by l7-fitler module.
>       my config as follow:
>       ** kernel ----- 2.6.25.19
>       ** l7-filter ---- kernel-2.20
> [...]
> layer7: couldn't get conntrack.
> layer7: couldn't get conntrack.
> layer7: couldn't get conntrack.
> BUG: unable to handle kernel paging request at deaad81c
> IP: [<c05cde58>] ipt_do_table+0x102/0x4d6
> [...]
> Call Trace:
> [<c059a873>] ? ip_route_input+0x853/0xc0e
> [<c05ce2a8>] ? ipt_hook+0x18/0x20
> [<c0583d67>] ? nf_iterate+0x2f/0x7d
> [<c059d3a4>] ? ip_forward_finish+0x0/0x32
> [<c0583ded>] ? nf_hook_slow+0x38/0x8e
> [<c059d3a4>] ? ip_forward_finish+0x0/0x32
> [<c059d5e8>] ? ip_forward+0x212/0x272
> [<c059d3a4>] ? ip_forward_finish+0x0/0x32
> [<c059c35c>] ? ip_rcv_finish+0x280/0x29f
> [<c059c7ca>] ? ip_rcv+0x1f6/0x220
> [<c055d1d6>] ? netif_receive_skb+0x2ce/0x340
> [<c053f869>] ? cp_rx_poll+0x1e5/0x2cc
> [<c055f0fc>] ? net_rx_action+0x61/0x104
> [<c04203b2>] ? __do_softirq+0x64/0xcd
> [<c0405792>] ? do_softirq+0x55/0x88
> [<c044022a>] ? handle_level_irq+0x0/0xca
> [<c042034c>] ? irq_exit+0x38/0x3a
> [<c040587f>] ? do_IRQ+0xba/0xd3
> [<c0404247>] ? common_interrupt+0x23/0x28
> [<c0402652>] ? default_idle+0x39/0x5c
> [<c0402619>] ? default_idle+0x0/0x5c
> [<c0402564>] ? cpu_idle+0x6b/0x7f
> [<c0600ded>] ? rest_init+0x49/0x4b

It doesn't look to me that the crash occurs inside l7-filter code.  Have 
you tried using the exact same setup but without l7-filter?  Try 
substituting your l7-filter rules for port matching rules and see if the 
same crash occurs.

-Matthew

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