diff -r -U3 sbcl-2.0.1.orig/contrib/sb-concurrency/tests/test-frlock.lisp sbcl-2.0.1/contrib/sb-concurrency/tests/test-frlock.lisp
--- sbcl-2.0.1.orig/contrib/sb-concurrency/tests/test-frlock.lisp	2020-01-27 04:26:30.000000000 +0700
+++ sbcl-2.0.1/contrib/sb-concurrency/tests/test-frlock.lisp	2020-01-30 21:53:57.750913923 +0700
@@ -88,7 +88,7 @@
 #+sb-thread
 (deftest* (frlock.1)
     (handler-case
-        (sb-ext:with-timeout 40
+        (sb-ext:with-timeout 240
           (test-frlocks #+win32 :outer-write-pause #+win32 t ))
       (sb-ext:timeout (c)
         (error "~A" c)))