diff --git a/src/evt_core.c b/src/evt_core.c
index 01a7d7f..c87680b 100644
--- a/src/evt_core.c
+++ b/src/evt_core.c
@@ -173,10 +173,13 @@ void evt_core_loop(struct evt_core_ctx* ctx) {
 
         fdinfo = evt_core_get_from_fd(ctx, err_fd);
         if (fdinfo != NULL) {
-          fprintf(stderr, "Clearing fd=%d on cat=%s\n", err_fd, fdinfo->cat->name);
           if (fdinfo->cat->err_cb != NULL) {
-            while (fdinfo->cat->err_cb(ctx, fdinfo) == 0);
+            if (fdinfo->cat->err_cb(ctx, fdinfo) == 1) {
+              fprintf(stderr, "fd=%d on cat=%s is handled by app\n", err_fd, fdinfo->cat->name);
+              continue;
+            }
           }
+          fprintf(stderr, "Clearing fd=%d on cat=%s\n", err_fd, fdinfo->cat->name);
           evt_core_rm_fd (ctx, err_fd);
         } else {
           fprintf(stderr, "The file descriptor %d is not registered in a category, this is probably a logic error\n", err_fd);
diff --git a/src/meas_lat.c b/src/meas_lat.c
index f23c7e5..38a0d5c 100644
--- a/src/meas_lat.c
+++ b/src/meas_lat.c
@@ -43,6 +43,10 @@ void free_mesure_conf(void* v) {
   free(mc);
 }
 
+int on_udp_err(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo) {
+  return 1;
+}
+
 int on_udp(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo) {
   ssize_t res;
   int secs, nsecs;
@@ -121,7 +125,7 @@ void register_categories(struct evt_core_ctx* evts) {
     .app_ctx = NULL,
     .free_app_ctx = NULL,
     .cb = on_udp,
-    .err_cb = NULL,
+    .err_cb = on_udp_err,
     .name = "udp-read",
     .flags = EPOLLIN | EPOLLET,
     .socklist = NULL