diff --git a/opam b/opam
index c62a91004..6f968d62f 100644
--- a/opam
+++ b/opam
@@ -1,6 +1,6 @@
 opam-version: "2.0"
 name: "ocsigenserver"
-version: "2.12.0"
+version: "2.13.0"
 maintainer: "dev@ocsigen.org"
 synopsis: "A full-featured and extensible Web server."
 description: "Ocsigen Server implements most features of the HTTP protocol, and has a very powerful extension mechanism that makes it very easy to plug your own OCaml modules for generating pages. Many extensions are already implemented, like a reverse proxy, content compression, access control, authentication, etc."
diff --git a/src/baselib/ocsigen_config.ml.in b/src/baselib/ocsigen_config.ml.in
index 94569a52d..9114c9a38 100644
--- a/src/baselib/ocsigen_config.ml.in
+++ b/src/baselib/ocsigen_config.ml.in
@@ -83,18 +83,18 @@ let set_mimefile s = mimefile := s
 let () = Lwt_log.add_rule "*" Lwt_log.Warning (* without --verbose *)
 let set_verbose () =
   verbose := true;
-  Lwt_log.add_rule "*" Lwt_log.Notice
+  Lwt_log.add_rule "ocsigen:*" Lwt_log.Notice
 let set_silent () = silent := true
 let set_daemon () = set_silent (); daemon := true
 let set_veryverbose () =
   verbose := true;
   veryverbose := true;
-  Lwt_log.add_rule "*" Lwt_log.Info
+  Lwt_log.add_rule "ocsigen:*" Lwt_log.Info
 let set_debug () =
   verbose := true;
   veryverbose := true;
   debug := true;
-  Lwt_log.add_rule "*" Lwt_log.Debug
+  Lwt_log.add_rule "ocsigen:*" Lwt_log.Debug
 
 let set_minthreads i = minthreads := i
 let set_maxthreads i = maxthreads := i
diff --git a/src/baselib/ocsigen_messages.ml b/src/baselib/ocsigen_messages.ml
index 37b10169c..f2e3a3899 100644
--- a/src/baselib/ocsigen_messages.ml
+++ b/src/baselib/ocsigen_messages.ml
@@ -81,14 +81,7 @@ let open_files ?(user = Ocsigen_config.get_user ()) ?(group = Ocsigen_config.get
                 | _                             -> Lwt_log.null);
          Lwt_log.dispatch
            (fun sect lev ->
-              let show =
-                match lev with
-                | Lwt_log.Error | Lwt_log.Fatal ->
-                  not (Ocsigen_config.get_silent ())
-                | _ ->
-                  Ocsigen_config.get_verbose ()
-              in
-              if show then stderr else Lwt_log.null)];
+              if Ocsigen_config.get_silent () then Lwt_log.null else stderr)];
 
     let gid = match group with
       | None -> Unix.getgid ()
@@ -103,9 +96,16 @@ let open_files ?(user = Ocsigen_config.get_user ()) ?(group = Ocsigen_config.get
                         (Unix.getpwnam user).Unix.pw_uid
                       with Not_found as e -> ignore (Lwt_log.error "Error: Wrong user"); raise e)
     in
-    Lwt_unix.chown (full_path access_file) uid gid >>= fun () ->
-    Lwt_unix.chown (full_path warning_file) uid gid >>= fun () ->
-    Lwt_unix.chown (full_path error_file) uid gid
+    Lwt.catch
+      (fun () ->
+         Lwt_unix.chown (full_path access_file) uid gid >>= fun () ->
+         Lwt_unix.chown (full_path warning_file) uid gid >>= fun () ->
+         Lwt_unix.chown (full_path error_file) uid gid)
+      (fun e -> match e with
+         | Unix.Unix_error (Unix.EPERM, _, _) ->
+             (* to allow for symlinks to /dev/null *)
+             Lwt.return_unit
+         | _ -> Lwt.fail e)
 
 (****)
 
diff --git a/src/extensions/ocsipersist-dbm/ocsipersist.ml b/src/extensions/ocsipersist-dbm/ocsipersist.ml
index 12225a73f..28394d54f 100644
--- a/src/extensions/ocsipersist-dbm/ocsipersist.ml
+++ b/src/extensions/ocsipersist-dbm/ocsipersist.ml
@@ -25,7 +25,7 @@
 open Ocsidbmtypes
 open Lwt
 
-let section = Lwt_log.Section.make "ocsipersist:dbm"
+let section = Lwt_log.Section.make "ocsigen:ocsipersist:dbm"
 (** Data are divided into stores.
     Create one store for your project, where you will save all your data.
 *)
diff --git a/src/extensions/ocsipersist-pgsql/ocsipersist.ml b/src/extensions/ocsipersist-pgsql/ocsipersist.ml
index 2bab268c6..f09afb820 100644
--- a/src/extensions/ocsipersist-pgsql/ocsipersist.ml
+++ b/src/extensions/ocsipersist-pgsql/ocsipersist.ml
@@ -1,6 +1,6 @@
 (** PostgreSQL (>= 9.5) backend for Ocsipersist. *)
 
-let section = Lwt_log.Section.make "ocsipersist:pgsql"
+let section = Lwt_log.Section.make "ocsigen:ocsipersist:pgsql"
 
 module Lwt_thread = struct
   include Lwt
diff --git a/src/extensions/ocsipersist-sqlite/ocsipersist.ml b/src/extensions/ocsipersist-sqlite/ocsipersist.ml
index 42485f067..3b2443d48 100644
--- a/src/extensions/ocsipersist-sqlite/ocsipersist.ml
+++ b/src/extensions/ocsipersist-sqlite/ocsipersist.ml
@@ -18,7 +18,7 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *)
 
-let section = Lwt_log.Section.make "ocsipersist:sqlite"
+let section = Lwt_log.Section.make "ocsigen:ocsipersist:sqlite"
 
 (** Module Ocsipersist: persistent data *)