[Bug 227654] [panic] repeatable crash with lagg+vlan+em

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227654

Kristof Provost <kp at freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kp at freebsd.org

--- Comment #6 from Kristof Provost <kp at freebsd.org> ---
This should fix it:

diff --git a/sys/net/if_vlan.c b/sys/net/if_vlan.c
index b75a62c16b3..79ef2422600 100644
--- a/sys/net/if_vlan.c
+++ b/sys/net/if_vlan.c
@@ -1302,8 +1302,13 @@ vlan_lladdr_fn(void *arg, int pending __unused)

        ifv = (struct ifvlan *)arg;
        ifp = ifv->ifv_ifp;
+
+       CURVNET_SET(ifp->if_vnet);
+
        /* The ifv_ifp already has the lladdr copied in. */
        if_setlladdr(ifp, IF_LLADDR(ifp), ifp->if_addrlen);
+
+       CURVNET_RESTORE();
 }

 static int

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