From 330426cfe268a3ccaaf2baa20e0d1d37b0312c40 Mon Sep 17 00:00:00 2001 From: Victor Stinner Date: Wed, 3 Jul 2013 22:29:42 +0200 Subject: test_faulthandler: skip test_read_null() on AIX AIX maps the first page of memory at address zero as valid, read-only. Reading NULL is not a fault on AIX. This is utilized by IBM compiler optimizations. One speculatively can indirect through a pointer which may be null without first testing if null and defer the test before using the value. --- Lib/test/test_faulthandler.py | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Lib/test/test_faulthandler.py b/Lib/test/test_faulthandler.py index 5afc7cc..770e70c 100644 --- a/Lib/test/test_faulthandler.py +++ b/Lib/test/test_faulthandler.py @@ -107,6 +107,8 @@ class FaultHandlerTests(unittest.TestCase): self.assertRegex(output, regex) self.assertNotEqual(exitcode, 0) + @unittest.skipIf(sys.platform.startswith('aix'), + "the first page of memory is a mapped read-only on AIX") def test_read_null(self): self.check_fatal_error(""" import faulthandler -- cgit v0.12