bitbake/cooker: Fix parsing failure zombie problem

When parsing if a SystemExit event is triggered, it causes the parsing thread to
exit and the main process hangs waiting for it to finish indefintely. Add code to
catch BaseExceptions and raise these with the main process gracefully instead
of just hanging indefinitely with zombie processes.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/bitbake/lib/bb/cooker.py b/bitbake/lib/bb/cooker.py
index 825c35798806de8ac71fb7e78ceb659fdabd96fb..ff16daf83fedaf78d159e4ad82fafb10d43843a3 100644 (file)
--- a/bitbake/lib/bb/cooker.py
+++ b/bitbake/lib/bb/cooker.py
@@ -948,6 +948,13 @@ class CookerExit(bb.event.Event):
     def __init__(self):
         bb.event.Event.__init__(self)
 
+class ParsingFailure(Exception):
+    def __init__(self, realexception, recipe):
+        self.realexception = realexception
+        self.recipe = recipe
+        Exception.__init__(self, "Failure when parsing %s" % recipe)
+        self.args = (realexception, recipe)
+
 def parse_file(task):
     filename, appends = task
     try:
@@ -955,6 +962,11 @@ def parse_file(task):
     except Exception, exc:
         exc.recipe = filename
         raise exc
+    # Need to turn BaseExceptions into Exceptions here so we gracefully shutdown
+    # and for example a worker thread doesn't just exit on its own in response to
+    # a SystemExit event for example.
+    except BaseException, exc:
+        raise ParsingFailure(exc, filename)
 
 class CookerParser(object):
     def __init__(self, cooker, filelist, masked):