Author: Armin Rigo <[email protected]>
Branch: py3.5
Changeset: r88836:dc7c0fe0f3cb
Date: 2016-12-03 08:36 +0100
http://bitbucket.org/pypy/pypy/changeset/dc7c0fe0f3cb/
Log: Attempt to work around rare cases where sys.exc_info() returns non-
None because it was not correctly cleared
diff --git a/pypy/interpreter/pyframe.py b/pypy/interpreter/pyframe.py
--- a/pypy/interpreter/pyframe.py
+++ b/pypy/interpreter/pyframe.py
@@ -248,20 +248,21 @@
"""Start this frame's execution."""
if self._is_generator_or_coroutine():
return self.initialize_as_generator(name, qualname)
- elif we_are_translated():
- return self.execute_frame()
else:
# untranslated: check that sys_exc_info is exactly
- # restored after running any Python function
+ # restored after running any Python function.
+ # Translated: actually save and restore it, as an attempt to
+ # work around rare cases that can occur if RecursionError or
+ # MemoryError is raised at just the wrong place
executioncontext = self.space.getexecutioncontext()
exc_on_enter = executioncontext.sys_exc_info()
try:
- w_res = self.execute_frame()
- except OperationError:
- assert exc_on_enter is executioncontext.sys_exc_info()
- raise
- assert exc_on_enter is executioncontext.sys_exc_info()
- return w_res
+ return self.execute_frame()
+ finally:
+ if we_are_translated():
+ executioncontext.set_sys_exc_info(exc_on_enter)
+ else:
+ assert exc_on_enter is executioncontext.sys_exc_info()
run._always_inline_ = True
def initialize_as_generator(self, name, qualname):
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