.

wcfs/client/wcfs.cpp

@@ -366,11 +366,12 @@ error _Conn::_pinner(context::Context ctx) {
         fprintf(stderr, "CRITICAL: %s\n", v(err));
         fprintf(stderr, "CRITICAL: wcfs server will likely kill us soon.\n");
 
-        // mark the connection non-operational if the pinner fails.
+        // mark the connection non-operational if pinner fails.
         //
         // XXX go because wconn.close might deadlock wrt Conn.resync on
         // wconn._filehMu, because Conn.resync sends "watch" updates under
-        // wconn._filehMu. If the pinner fails - we already have serious problems.
+        // wconn._filehMu (Conn.open and FileH.close send "watch" _without_
+        // wconn._filehMu). If pinner fails - we already have serious problems.
         // TODO try to resolve the deadlock.
         go([wconn]() {
             wconn->close();