PyType_IsSubtype segfaults

[nsbuttar]

BPO	1663392
Nosy	@birkenfeld
Files	report: gdb bt for PyType_IsSubType segfault

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields:

assignee = None
closed_at = <Date 2007-03-06.03:20:11.000>
created_at = <Date 2007-02-19.11:42:58.000>
labels = ['interpreter-core', 'invalid']
title = 'PyType_IsSubtype segfaults'
updated_at = <Date 2007-03-06.03:20:11.000>
user = 'https://bugs.python.org/nsbuttar'

bugs.python.org fields:

activity = <Date 2007-03-06.03:20:11.000>
actor = 'sf-robot'
assignee = 'none'
closed = True
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2007-02-19.11:42:58.000>
creator = 'nsbuttar'
dependencies = []
files = ['2299']
hgrepos = []
issue_num = 1663392
keywords = []
message_count = 4.0
messages = ['31295', '31296', '31297', '31298']
nosy_count = 3.0
nosy_names = ['georg.brandl', 'sf-robot', 'nsbuttar']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue1663392'
versions = ['Python 2.4']

[nsbuttar]

It seems the issue is similar to bug#560215. I was not able to reopen the last bug so I have opened a new one. I am using an external python extension which seems to be buggy. I am still investigating the actual cause of the bug in the said extension library.

PyType_IsSubType segfault reason is NULL pointer derefrence @ PyType_IsSubtype (a=0x0, b=0xb7f1ea00)
attaching the gdb bt as attachment.

[nsbuttar]

Additional Information

cat /etc/gentoo-release ; uname -r; python -V
Gentoo Base System release 1.12.9
2.6.19-suspend2-r2
Python 2.4.4

[birkenfeld]

I don't think this is a bug in the core. Most Python API functions may not be passed NULL pointers;
it is expected that the user of the function checks for that condition.

[sf-robot]

This Tracker item was closed automatically by the system. It was
previously set to a Pending status, and the original submitter
did not respond within 14 days (the time period specified by
the administrator of this Tracker).