On Mon, Apr 24, 2017 at 04:30:51PM +0000, Hexin Wang wrote:
> In ovs 2.6.90, we are seeing NULL reference to in_port if
> lookup_input_bundle() sets in_port to NULL.
>
> /* Learn source MAC. */
> if (ctx->xin->may_learn && !in_port->is_layer3) {
> update_learning_table(ctx->xbridge, flow, wc, vlan, in_xbundle);
> }
>
> This happens when a flow being processed in xlate_normal is OFPP_NONE.
> (gdb) print ctx->xin->flow.in_port
>
> $5 = {odp_port = 65535, ofp_port = 65535}
>
> We don’t see this issue on 2.5.0. Is ofp_port 65535 expected in
> xlate_normal()?
As far as I can tell, the code you cite never existed in the Open
vSwitch repository: only a single commit against master ever added the
string "is_layer3" to the code base, and not in the same file as any
reference to update_learning_table(). I guess that you are using some
fork of OVS that added it. In that case, probably you need to ask
whoever supplied the fork.
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