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Crash after modifying f_lineno #58817

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mtomassoli mannequin opened this issue Apr 18, 2012 · 4 comments
Closed

Crash after modifying f_lineno #58817

mtomassoli mannequin opened this issue Apr 18, 2012 · 4 comments
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@benjaminp
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interpreter-core (Objects, Python, Grammar, and Parser dirs) type-crash A hard crash of the interpreter, possibly with a core dump

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@mtomassoli
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Mannequin

mtomassoli mannequin commented Apr 18, 2012

BPO 14612
Nosy @birkenfeld, @benjaminp, @bitdancer
Files
  • script.py
  • frame_setlineno.patch
    		•

    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:

    assignee = 'https://github.com/benjaminp'
closed_at = <Date 2012-04-18.15:24:40.905>
created_at = <Date 2012-04-18.11:20:31.706>
labels = ['interpreter-core', 'type-crash']
title = 'Crash after modifying f_lineno'
updated_at = <Date 2012-04-18.15:24:40.903>
user = 'https://bugs.python.org/mtomassoli'

    bugs.python.org fields:

    activity = <Date 2012-04-18.15:24:40.903>
actor = 'python-dev'
assignee = 'benjamin.peterson'
closed = True
closed_date = <Date 2012-04-18.15:24:40.905>
closer = 'python-dev'
components = ['Interpreter Core']
creation = <Date 2012-04-18.11:20:31.706>
creator = 'mtomassoli'
dependencies = []
files = ['25256', '25258']
hgrepos = []
issue_num = 14612
keywords = ['patch']
message_count = 4.0
messages = ['158603', '158613', '158619', '158634']
nosy_count = 6.0
nosy_names = ['georg.brandl', 'peter.otten', 'benjamin.peterson', 'r.david.murray', 'python-dev', 'mtomassoli']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'crash'
url = 'https://bugs.python.org/issue14612'
versions = ['Python 2.7', 'Python 3.3']
    @mtomassoli
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    mtomassoli mannequin commented Apr 18, 2012

    Debugging script.py and jumping to line 3 makes Python crash.
    For instance:

    python -m pdb script.py
    (Pdb) j 3

    @mtomassoli mtomassoli mannequin added interpreter-core (Objects, Python, Grammar, and Parser dirs) type-crash A hard crash of the interpreter, possibly with a core dump labels Apr 18, 2012
    @bitdancer
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    For reference, here is the crash:

    rdmurray@hey:~/python/p33>./python -m pdb script.py

    /home/rdmurray/python/p33/script.py(1)<module>()
    -> with open('test') as f:
    (Pdb) j 3
    python: Objects/frameobject.c:207: frame_setlineno: Assertion `blockstack_top > 0' failed.
    zsh: abort ./python -m pdb script.py

    @benjaminp benjaminp self-assigned this Apr 18, 2012
    @peterotten
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    peterotten mannequin commented Apr 18, 2012

    frame_setlineno() doesn't keep track of with blocks. Here's a patch.

    @python-dev
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    python-dev mannequin commented Apr 18, 2012

    New changeset 6a0a073e8461 by Benjamin Peterson in branch '3.2':
    SETUP_WITH acts like SETUP_FINALLY for the purposes of setting f_lineno (closes bpo-14612)
    http://hg.python.org/cpython/rev/6a0a073e8461

    New changeset 0695f5d028a7 by Benjamin Peterson in branch 'default':
    merge 3.2 (bpo-14612)
    http://hg.python.org/cpython/rev/0695f5d028a7

    New changeset 67be12ab8948 by Benjamin Peterson in branch '2.7':
    SETUP_WITH acts like SETUP_FINALLY for the purposes of setting f_lineno (closes bpo-14612)
    http://hg.python.org/cpython/rev/67be12ab8948

    @python-dev python-dev mannequin closed this as completed Apr 18, 2012
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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    @benjaminp benjaminp

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