New submission from Hiroshi Miura <miur...@linux.com>:
I've observed that pytest becomes segmentation fault on python 3.9.0 with
attached case.
I've tested the case with several python versions;
python 3.9.0a2 - good
python 3.9.0a3, 3.9.0-final - bad
python 3.10.0a1 - good
- OS: Mint Linux 20, Linux kernel 5.8.14
- Attachments:
* test_main.py - pytest test case to reproduce
* py_stacktrace.txt - pytest result which become segmentation fault
* gdb_backtrace.txt - gdb backtrace
So I've bisected and a result is as follows;
9af0e47b1705457bb6b327c197f2ec5737a1d8f6 is the first bad commit
commit 9af0e47b1705457bb6b327c197f2ec5737a1d8f6
Author: Mark Shannon <m...@hotpy.org>
Date: Tue Jan 14 10:12:45 2020 +0000
bpo-39156: Break up COMPARE_OP into four logically distinct opcodes.
(GH-17754)
Break up COMPARE_OP into four logically distinct opcodes:
* COMPARE_OP for rich comparisons
* IS_OP for 'is' and 'is not' tests
* CONTAINS_OP for 'in' and 'is not' tests
* JUMP_IF_NOT_EXC_MATCH for checking exceptions in 'try-except' statements.
Doc/library/dis.rst | 21 +
Include/opcode.h | 8 +-
Lib/importlib/_bootstrap_external.py | 3 +-
Lib/opcode.py | 7 +-
Lib/test/test_dis.py | 141 +-
Lib/test/test_peepholer.py | 12 +-
Lib/test/test_positional_only_arg.py | 6 +-
.../2019-12-30-10-53-59.bpo-39156.veT-CB.rst | 9 +
PC/launcher.c | 3 +-
Python/ceval.c | 137 +-
Python/compile.c | 71 +-
Python/importlib.h | 2922 +++++++------
Python/importlib_external.h | 4560 ++++++++++----------
Python/importlib_zipimport.h | 1831 ++++----
Python/opcode_targets.h | 6 +-
Python/peephole.c | 6 +-
Tools/scripts/generate_opcode_h.py | 5 -
17 files changed, 4901 insertions(+), 4847 deletions(-)
create mode 100644 Misc/NEWS.d/next/Core and
Builtins/2019-12-30-10-53-59.bpo-39156.veT-CB.rst
----------
components: Interpreter Core
files: test_main.py
messages: 378796
nosy: miurahr
priority: normal
severity: normal
status: open
title: pytest case which catch exceptions become segfault
type: crash
versions: Python 3.9
Added file: https://bugs.python.org/file49521/test_main.py
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue42057>
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