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SubjectRe: Linux 3.1-rc9
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Le mercredi 02 novembre 2011 à 18:27 +0100, Eric Dumazet a écrit :

> I believe it might come from commit 0e734419
> (ipv4: Use inet_csk_route_child_sock() in DCCP and TCP.)
>
> In case inet_csk_route_child_sock() returns NULL, we dont release socket
> lock.
>
>

Yes, thats the problem. I am testing following patch :

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 0ea10ee..683d97a 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1510,6 +1510,7 @@ exit:
NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENDROPS);
return NULL;
put_and_exit:
+ bh_unlock_sock(newsk);
sock_put(newsk);
goto exit;
}

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