0f33552e-3426-4ce7-83ad-4a88a6ffc812
commented
10 years ago This is a testcase for bpo-17669 - it passes against the latest default (and hits the same segfault under 3.3.0).
I came up with this while tracking down a thorny generator finalisation crash that turned out to be a variant on 17669.
The root cause was gen_close being called on a generator that's delegating to another, and whose frame has already had frame_clear called (so f_stacktop is NULL).
It's reproduced by creating a reference cycle that's broken by clearing the delegating generator's frame.
benjaminp
1762cc99-3127-4a62-9baf-30c3d0f51ef7
Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.
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GitHub fields: ```python assignee = None closed_at =
created_at =
labels = ['interpreter-core', 'type-feature']
title = 'Test for closing delegating generator with cleared frame (Issue17669)'
updated_at =
user = 'https://github.com/phmc'
```
bugs.python.org fields:
```python
activity =
actor = 'python-dev'
assignee = 'none'
closed = True
closed_date =
closer = 'python-dev'
components = ['Interpreter Core']
creation =
creator = 'pconnell'
dependencies = []
files = ['31048', '31055']
hgrepos = []
issue_num = 18565
keywords = ['patch']
message_count = 4.0
messages = ['193765', '193775', '193794', '193798']
nosy_count = 4.0
nosy_names = ['benjamin.peterson', 'python-dev', 'pconnell', 'isoschiz']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue18565'
versions = ['Python 3.4']
```