[ovs-dev] [PATCH] datapath: Add mask check during flow lookup

[Jesse Gross]

On Fri, Jul 19, 2013 at 11:11 AM, Andy Zhou <azhou at nicira.com> wrote:
> A mega flow matches when the masked key matches and the mask applied
> is the same as the mask used to create the mega flow.
>
> This patch adds the implementation of the second match condition
> mentioned above. Without this fix, mega flow lookup may result false
> match.
>
> Bug #18584
>
> Signed-off-by: Andy Zhou <azhou at nicira.com>

Can you explain the conditions under which this can occur? It seems to
imply the overlapping flows are being installed, which is not supposed
to happen.