Fixed deferred route freeing crash

The sending channel may be already gone when rte_free_deferred()
is finally called so we have to log about route freeing in the
synchronous call instead.

diff --git a/nest/rt-table.c b/nest/rt-table.c
index b06b2cd1326b8b68eb40339025d170aa1f827c53..421a5e92285ffc181c3cbeda5871494af994fa52 100644 (file)
--- a/nest/rt-table.c
+++ b/nest/rt-table.c
@@ -558,6 +558,7 @@ rte_free(struct rte_storage *e, struct rtable_private *tab)
   if (!tab->rte_free_deferred++)
     rt_lock_table(tab);
 
+  rt_rte_trace_in(D_ROUTES, e->rte.sender->req, &e->rte, "freeing");
   defer_call(&rfdi.dc, sizeof rfdi);
 }
 
@@ -571,8 +572,6 @@ rte_free_deferred(struct deferred_call *dc)
 
   /* No need for synchronize_rcu, implied by the deferred_call */
 
-  rt_rte_trace_in(D_ROUTES, e->rte.sender->req, &e->rte, "freeing");
-
   struct netindex *i = RTE_GET_NETINDEX(&e->rte);
   net_unlock_index(tab->netindex, i);