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Date:	Tue, 09 Mar 2010 18:09:28 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	"\"Oleg A. Arkhangelsky\"" <sysoleg@...dex.ru>
Cc:	netdev@...r.kernel.org
Subject: Re: Kernel panic in fib_rules_lookup (kernel 2.6.32)

Le mardi 09 mars 2010 à 10:44 +0300, "Oleg A. Arkhangelsky" a écrit :
> Hello,
> 
> Got this kernel panic tomorrow. This PC is rather heavy loaded router with BGP full view (> 300K routes).
> We're using FIB_TRIE. Last time we got similar panic about 1 month ago. Please, let me know if you
> need additional information to debug (e.g. objdump). Thanks!
> 
> Mar  9 10:08:55 bras-1 kernel: BUG: unable to handle kernel NULL pointer dereference at (null)
> Mar  9 10:08:55 bras-1 kernel: IP: [<c11fa012>] fib_rules_lookup+0xa2/0xd0
> Mar  9 10:08:55 bras-1 kernel: *pde = 00000000
> Mar  9 10:08:55 bras-1 kernel: Thread overran stack, or stack corrupted

Hmm...

> Mar  9 10:08:55 bras-1 kernel: Oops: 0000 [#1] SMP
> Mar  9 10:08:55 bras-1 kernel: Modules linked in: ipt_NETFLOW iTCO_wdt xt_tcpudp iptable_filter iptable_nat ip_tables ipt_ISG x_tables ipmi_watchdog ipmi_msghandler nf_nat_ftp nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ftp nf_conntrack 8021q e1000 e1000e
> Mar  9 10:08:55 bras-1 kernel:
> Mar  9 10:08:55 bras-1 kernel: Pid: 0, comm: swapper Not tainted (2.6.32 #3)

Is it an unpatched kernel ?

Could you send us your .config ?

gcc -v ?


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