X wcfs: test: try to live with only hard memlock limit adjusted

People don't want to raise up soft defaults
nexedi/slapos.package!130 (comment 118373)
nexedi/slapos.package!130 (comment 118405)

wcfs/wcfs_test.py

@@ -75,6 +75,13 @@ def setup_module():
         gorace += " "
     os.environ["GORACE"] = gorace + "halt_on_error=1"
 
+    # ↑ memlock soft-limit till its hard maximum
+    # (tFile needs ~ 64M to mlock while default memlock soft-limit is usually 64K)
+    from resource import setrlimit, getrlimit, RLIMIT_MEMLOCK
+    memlockS, memlockH = getrlimit(RLIMIT_MEMLOCK)
+    if memlockS != memlockH:
+        setrlimit(RLIMIT_MEMLOCK, (memlockH, memlockH))
+
     global testdb, testzurl, testmntpt
     testdb = getTestDB()
     testdb.setup()