netdev - Re: BUG: unable to handle kernel NULL pointer dereference at 000000000000002c

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Message-ID: <1328267097.2157.17.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC>
Date:	Fri, 03 Feb 2012 12:04:57 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Stefan Priebe - Profihost AG <s.priebe@...fihost.ag>
Cc:	Greg KH <gregkh@...uxfoundation.org>,
	David Miller <davem@...emloft.net>, jwboyer@...il.com,
	hch@...radead.org, netdev@...r.kernel.org, david@...morbit.com,
	stable@...r.kernel.org, gregkh@...e.de
Subject: Re: BUG: unable to handle kernel NULL pointer dereference at
 000000000000002c

Le vendredi 03 février 2012 à 09:09 +0100, Stefan Priebe - Profihost AG
a écrit :
> Hi,
> 
> attached you find the patch files applying cleanly to 3.0.X.

First, thanks a lot for doing this work.

OK, lets try to provide a cumulative patch with a good Changelog ?

And please try a "allyesconfig" build, because it doesnt build right
now :

  CC [M]  net/decnet/dn_neigh.o
net/decnet/dn_route.c: In function 'dn_forward':
net/decnet/dn_route.c:757:31: error: 'struct dst_entry' has no member
named 'neighbour'
make[2]: *** [net/decnet/dn_route.o] Error 1
make[2]: *** Waiting for unfinished jobs....
net/decnet/dn_neigh.c: In function 'dn_long_output':
net/decnet/dn_neigh.c:230:31: error: 'struct dst_entry' has no member
named 'neighbour'
net/decnet/dn_neigh.c: In function 'dn_short_output':
net/decnet/dn_neigh.c:277:31: error: 'struct dst_entry' has no member
named 'neighbour'
net/decnet/dn_neigh.c: In function 'dn_phase3_output':
net/decnet/dn_neigh.c:321:31: error: 'struct dst_entry' has no member
named 'neighbour'
make[2]: *** [net/decnet/dn_neigh.o] Error 1
make[1]: *** [net/decnet] Error 2

So there is at least one patch missing ?

Once you believe its ok, please send a proper patch with changelog like
this :

[PATCH] net: hot fix for stable kernels

This cumulative patch fixes IP redirect NULL dereferences
added in commit f39925dbde77
(ipv4: Cache learned redirect information in inetpeer.)

Backport of [xx] upstream commits

9cbb7ecbcff85077bb12301aaf4c9b5a56c5993d
(ipv6: Get rid of rt6i_nexthop macro.)

69cce1d1404968f78b177a0314f5822d5afdbbfb
(net: Abstract dst->neighbour accesses behind helpers.) 
...

[Full list of xx commits with their ID in linux tree and their title,
to ease future maintenance]

Signed-off-by: [your email]
---
[diffstat -p1 -w70 of your patch]

[content of the patch]

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