netdev - Re: Kernel panic in fib_rules

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Message-Id: <355381272820467@web19.yandex.ru>
Date:	Sun, 02 May 2010 21:14:26 +0400
From:	"\"Oleg A. Arkhangelsky\"" <sysoleg@...dex.ru>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: Kernel panic in fib_rules_lookup (kernel 2.6.32)

Hello,

02.05.10, 18:31, "Eric Dumazet" <eric.dumazet@...il.com>:

> Le dimanche 02 mai 2010 à 14:46 +0400, "Oleg A. Arkhangelsky" a écrit :

>  > Got the same panic, at the same place (fib_rules_lookup+0xa2/0xd0).
>  > Looks like the problem with NULL dereference is somewhere in
>  > list_for_each_entry_rcu macro. But I don't understand how this can be.
>  > 
>  > Any thoughts? :(
>  > 
>  
>  Do you have any modify rules activity ?

It can be a nice clue, but unfortunately no. Moreover, we don't use rules at
all. Only default template:

0:      from all lookup local
32766:  from all lookup main
32767:  from all lookup default

Also, there are no "floating" interfaces (such as ppp) on this PC. Only routes
are changing periodically (Quagga with full-view BGP sessions).

-- 
wbr, Oleg.
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