On 10/27/2015 01:01 PM, Brian Rak wrote:
(Existing email got kinda messy, starting over again):
So, I'm having an issue with the kernel where if I add a bunch of
routes, I see some of them go "missing". They don't show up in the
'ip -4 route' list, but they do show up if I do 'ip -4 route get X'.
I managed to come up with a simple set of reproduction commands:
ip link add veth0 type veth peer name veth1
ip link set veth0 up
ip link set veth1 up
ip route add 108.61.171.119/32 dev veth0 scope link
ip route add 108.61.171.141/32 dev veth1 scope link
ip route add 108.61.171.223/32 dev veth1 scope link
ip route add 108.61.171.250/32 dev veth1 scope link
ip route add 108.61.171.247/32 dev veth1 scope link
ip route show
In the route show, you'll see 108.61.171.250/32 and 108.61.171.247/32
missing completely.
I did a lot of bisecting, and traced it down to this commit:
commit 8be33e955cb959dabc1a6eef0b7356fe8cf73fa6
Author: Alexander Duyck <alexander.h.du...@redhat.com>
Date: Wed Mar 4 14:59:19 2015 -0800
fib_trie: Fib walk rcu should take a tnode and key instead of a
trie and a leaf
The commit immediately prior to this one
(7289e6ddb633aaee6ccea2bd2e410654c47b29a6) works fine.
I tried the off-by-one fix from
e55ffaf457bcc8ec4e9d9f56f955971f834d65b3, however this doesn't appear
to help at all. This code is a little above my head, so I don't
really understand what exactly is broken here.
I'll take a look at it and see if I can come up with a fix by this
afternoon.
Thanks.
- Alex
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
