import UBI python3.9-3.9.18-3.el9
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SOURCES/00414-skip_test_zlib_s390x.patch
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SOURCES/00414-skip_test_zlib_s390x.patch
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From e5be32d6eb880c9563fde2f23cc31b7e449719ec Mon Sep 17 00:00:00 2001
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From: Victor Stinner <vstinner@python.org>
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Date: Wed, 24 Jan 2024 18:14:14 +0100
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Subject: [PATCH] bpo-46623: Skip two test_zlib tests on s390x (GH-31096)
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Skip test_pair() and test_speech128() of test_zlib on s390x since
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they fail if zlib uses the s390x hardware accelerator.
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---
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Lib/test/test_zlib.py | 32 +++++++++++++++++++
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.../2022-02-03-09-45-26.bpo-46623.vxzuhV.rst | 2 ++
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2 files changed, 34 insertions(+)
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create mode 100644 Misc/NEWS.d/next/Tests/2022-02-03-09-45-26.bpo-46623.vxzuhV.rst
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diff --git a/Lib/test/test_zlib.py b/Lib/test/test_zlib.py
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index 02509cd..f3654c9 100644
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--- a/Lib/test/test_zlib.py
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+++ b/Lib/test/test_zlib.py
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@@ -2,6 +2,7 @@ import unittest
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from test import support
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import binascii
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import copy
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+import os
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import pickle
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import random
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import sys
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@@ -16,6 +17,35 @@ requires_Decompress_copy = unittest.skipUnless(
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hasattr(zlib.decompressobj(), "copy"),
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'requires Decompress.copy()')
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+# bpo-46623: On s390x, when a hardware accelerator is used, using different
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+# ways to compress data with zlib can produce different compressed data.
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+# Simplified test_pair() code:
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+#
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+# def func1(data):
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+# return zlib.compress(data)
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+#
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+# def func2(data)
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+# co = zlib.compressobj()
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+# x1 = co.compress(data)
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+# x2 = co.flush()
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+# return x1 + x2
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+#
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+# On s390x if zlib uses a hardware accelerator, func1() creates a single
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+# "final" compressed block whereas func2() produces 3 compressed blocks (the
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+# last one is a final block). On other platforms with no accelerator, func1()
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+# and func2() produce the same compressed data made of a single (final)
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+# compressed block.
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+#
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+# Only the compressed data is different, the decompression returns the original
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+# data:
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+#
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+# zlib.decompress(func1(data)) == zlib.decompress(func2(data)) == data
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+#
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+# Make the assumption that s390x always has an accelerator to simplify the skip
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+# condition. Windows doesn't have os.uname() but it doesn't support s390x.
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+skip_on_s390x = unittest.skipIf(hasattr(os, 'uname') and os.uname().machine == 's390x',
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+ 'skipped on s390x')
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+
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class VersionTestCase(unittest.TestCase):
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@@ -174,6 +204,7 @@ class CompressTestCase(BaseCompressTestCase, unittest.TestCase):
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bufsize=zlib.DEF_BUF_SIZE),
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HAMLET_SCENE)
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+ @skip_on_s390x
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def test_speech128(self):
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# compress more data
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data = HAMLET_SCENE * 128
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@@ -225,6 +256,7 @@ class CompressTestCase(BaseCompressTestCase, unittest.TestCase):
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class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase):
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# Test compression object
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+ @skip_on_s390x
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def test_pair(self):
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# straightforward compress/decompress objects
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datasrc = HAMLET_SCENE * 128
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diff --git a/Misc/NEWS.d/next/Tests/2022-02-03-09-45-26.bpo-46623.vxzuhV.rst b/Misc/NEWS.d/next/Tests/2022-02-03-09-45-26.bpo-46623.vxzuhV.rst
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new file mode 100644
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index 0000000..be085c0
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--- /dev/null
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+++ b/Misc/NEWS.d/next/Tests/2022-02-03-09-45-26.bpo-46623.vxzuhV.rst
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@@ -0,0 +1,2 @@
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+Skip test_pair() and test_speech128() of test_zlib on s390x since they fail
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+if zlib uses the s390x hardware accelerator. Patch by Victor Stinner.
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--
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2.43.0
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@ -17,7 +17,7 @@ URL: https://www.python.org/
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#global prerel ...
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%global upstream_version %{general_version}%{?prerel}
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Version: %{general_version}%{?prerel:~%{prerel}}
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Release: 1%{?dist}.1
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Release: 3%{?dist}
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License: Python
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@ -409,6 +409,12 @@ Patch353: 00353-architecture-names-upstream-downstream.patch
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# - https://access.redhat.com/articles/7004769
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Patch397: 00397-tarfile-filter.patch
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# 00414 #
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#
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# Skip test_pair() and test_speech128() of test_zlib on s390x since
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# they fail if zlib uses the s390x hardware accelerator.
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Patch414: 00414-skip_test_zlib_s390x.patch
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# 00415 #
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# [CVE-2023-27043] gh-102988: Reject malformed addresses in email.parseaddr() (#111116)
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#
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@ -1824,9 +1830,13 @@ CheckPython optimized
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# ======================================================
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%changelog
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* Thu Jan 04 2024 Lumír Balhar <lbalhar@redhat.com> - 3.9.18-1.1
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* Wed Jan 24 2024 Lumír Balhar <lbalhar@redhat.com> - 3.9.18-3
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- Fix tests on s390x with hw acceleration
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Resolves: RHEL-13043
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* Thu Jan 04 2024 Lumír Balhar <lbalhar@redhat.com> - 3.9.18-2
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- Security fix for CVE-2023-27043
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Resolves: RHEL-5594
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Resolves: RHEL-20613
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* Thu Sep 07 2023 Charalampos Stratakis <cstratak@redhat.com> - 3.9.18-1
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- Update to 3.9.18
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