Hello Philipp,
Am 05.12.2015 um 15:19 schrieb Philipp Matthias Hahn:
Hello Hannes,
On Wed, Dec 02, 2015 at 12:40:32PM +0100, Hannes Frederic Sowa wrote:
git bisect tells me it stopped working after those two commits were applied:
commit d48623677191e0f035d7afd344f92cf880b01f8e
Author: Herbert Xu <herb...@gondor.apana.org.au>
Date: Tue Sep 22 11:38:56 2015 +0800
netlink: Replace rhash_portid with bound
commit 4e27762417669cb459971635be550eb7b5598286
Author: Herbert Xu <herb...@gondor.apana.org.au>
Date: Fri Sep 18 19:16:50 2015 +0800
netlink: Fix autobind race condition that leads to zero port ID
Cool, thanks a lot. Does this patch make a difference?
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 59651af..278e94c 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1137,7 +1137,7 @@ static int netlink_insert(struct sock *sk, u32 portid)
/* We need to ensure that the socket is hashed and visible. */
smp_wmb();
- nlk_sk(sk)->bound = portid;
+ nlk_sk(sk)->bound = true;
err:
release_sock(sk);
Didn't help, test program still gets stuck; sorry :-(
Can you please try this patch on top of 4.1.13 (which helps me):
http://pastebin.com/raw.php?i=hiuq4bsW
Stefan
Philipp
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