apps.xdp: generate more descriptive errors on bind(2) failure

snabbco · Nov 18, 2019 · 4e31856 · 4e31856
1 parent 22d754c
commit 4e31856
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/apps/xdp/xdp.lua b/src/apps/xdp/xdp.lua
@@ -484,7 +484,11 @@ function XDP:create_xsk (ifname, queue)
         -- flags = bits{ XDP_ZEROCOPY=2 }
       }
    )
-   assert(xsk.sock:bind(sa, ffi.sizeof(sa)))
+   local ok, err = xsk.sock:bind(sa, ffi.sizeof(sa))
+   if not ok then
+      error(("Unable to bind AF_XDP socket to %s queue %d (%s)")
+            :format(ifname, queue, err))
+   end
    return xsk
 end