diff --git a/poky/bitbake/lib/bb/ui/__init__.py b/poky/bitbake/lib/bb/ui/__init__.py
index a4805ed..4b7ac36 100644
--- a/poky/bitbake/lib/bb/ui/__init__.py
+++ b/poky/bitbake/lib/bb/ui/__init__.py
@@ -3,15 +3,5 @@
 #
 # Copyright (C) 2006-2007 Richard Purdie
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
diff --git a/poky/bitbake/lib/bb/ui/buildinfohelper.py b/poky/bitbake/lib/bb/ui/buildinfohelper.py
index 31323d2..f2151c2 100644
--- a/poky/bitbake/lib/bb/ui/buildinfohelper.py
+++ b/poky/bitbake/lib/bb/ui/buildinfohelper.py
@@ -3,18 +3,8 @@
 #
 # Copyright (C) 2013        Intel Corporation
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import sys
 import bb
diff --git a/poky/bitbake/lib/bb/ui/knotty.py b/poky/bitbake/lib/bb/ui/knotty.py
index fa88e6c..3d9e203 100644
--- a/poky/bitbake/lib/bb/ui/knotty.py
+++ b/poky/bitbake/lib/bb/ui/knotty.py
@@ -5,18 +5,8 @@
 #
 # Copyright (C) 2006-2012 Richard Purdie
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 from __future__ import division
 
@@ -222,6 +212,23 @@
             sys.stdout.flush()
         self.footer_present = False
 
+    def elapsed(self, sec):
+        hrs = int(sec / 3600.0)
+        sec -= hrs * 3600
+        min = int(sec / 60.0)
+        sec -= min * 60
+        if hrs > 0:
+            return "%dh%dm%ds" % (hrs, min, sec)
+        elif min > 0:
+            return "%dm%ds" % (min, sec)
+        else:
+            return "%ds" % (sec)
+
+    def keepAlive(self, t):
+        if not self.cuu:
+            print("Bitbake still alive (%ds)" % t)
+            sys.stdout.flush()
+
     def updateFooter(self):
         if not self.cuu:
             return
@@ -258,7 +265,7 @@
             else:
                 start_time = activetasks[t].get("starttime", None)
                 if start_time:
-                    tasks.append("%s - %ds (pid %s)" % (activetasks[t]["title"], currenttime - start_time, t))
+                    tasks.append("%s - %s (pid %s)" % (activetasks[t]["title"], self.elapsed(currenttime - start_time), t))
                 else:
                     tasks.append("%s (pid %s)" % (activetasks[t]["title"], t))
 
@@ -455,11 +462,17 @@
     warnings = 0
     taskfailures = []
 
+    printinterval = 5000
+    lastprint = time.time()
+
     termfilter = tf(main, helper, console, errconsole, format, params.options.quiet)
     atexit.register(termfilter.finish)
 
     while True:
         try:
+            if (lastprint + printinterval) <= time.time():
+                termfilter.keepAlive(printinterval)
+                printinterval += 5000
             event = eventHandler.waitEvent(0)
             if event is None:
                 if main.shutdown > 1:
@@ -488,6 +501,8 @@
                 continue
 
             if isinstance(event, logging.LogRecord):
+                lastprint = time.time()
+                printinterval = 5000
                 if event.levelno >= format.ERROR:
                     errors = errors + 1
                     return_value = 1
diff --git a/poky/bitbake/lib/bb/ui/ncurses.py b/poky/bitbake/lib/bb/ui/ncurses.py
index 8690c52..c422732 100644
--- a/poky/bitbake/lib/bb/ui/ncurses.py
+++ b/poky/bitbake/lib/bb/ui/ncurses.py
@@ -6,18 +6,8 @@
 # Copyright (C) 2006 Michael 'Mickey' Lauer
 # Copyright (C) 2006-2007 Richard Purdie
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 """
     We have the following windows:
diff --git a/poky/bitbake/lib/bb/ui/taskexp.py b/poky/bitbake/lib/bb/ui/taskexp.py
index 8305d70..50a943c 100644
--- a/poky/bitbake/lib/bb/ui/taskexp.py
+++ b/poky/bitbake/lib/bb/ui/taskexp.py
@@ -4,18 +4,8 @@
 # Copyright (C) 2007        Ross Burton
 # Copyright (C) 2007 - 2008 Richard Purdie
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import sys
 import gi
diff --git a/poky/bitbake/lib/bb/ui/toasterui.py b/poky/bitbake/lib/bb/ui/toasterui.py
index 88cec37..51892c9 100644
--- a/poky/bitbake/lib/bb/ui/toasterui.py
+++ b/poky/bitbake/lib/bb/ui/toasterui.py
@@ -7,18 +7,8 @@
 # Copyright (C) 2006-2012 Richard Purdie
 # Copyright (C) 2013      Intel Corporation
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 from __future__ import division
 import time
diff --git a/poky/bitbake/lib/bb/ui/uievent.py b/poky/bitbake/lib/bb/ui/uievent.py
index 9542b91..fedb050 100644
--- a/poky/bitbake/lib/bb/ui/uievent.py
+++ b/poky/bitbake/lib/bb/ui/uievent.py
@@ -1,22 +1,9 @@
-# ex:ts=4:sw=4:sts=4:et
-# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
 #
 # Copyright (C) 2006 - 2007  Michael 'Mickey' Lauer
 # Copyright (C) 2006 - 2007  Richard Purdie
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
 
 """
 Use this class to fork off a thread to recieve event callbacks from the bitbake
diff --git a/poky/bitbake/lib/bb/ui/uihelper.py b/poky/bitbake/lib/bb/ui/uihelper.py
index 963c1ea..db7f0ca 100644
--- a/poky/bitbake/lib/bb/ui/uihelper.py
+++ b/poky/bitbake/lib/bb/ui/uihelper.py
@@ -1,21 +1,9 @@
-# ex:ts=4:sw=4:sts=4:et
-# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
 #
 # Copyright (C) 2006 - 2007  Michael 'Mickey' Lauer
 # Copyright (C) 2006 - 2007  Richard Purdie
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import bb.build
 import time