[issue15926] Segmentation fault after multiple reinitializations

2012-09-23 Thread Roundup Robot 

Roundup Robot added the comment:

New changeset 6708224f8bee by Antoine Pitrou in branch 'default':
Issue #15926: Fix crash after multiple reinitializations of the interpreter.
http://hg.python.org/cpython/rev/6708224f8bee

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[issue15926] Segmentation fault after multiple reinitializations

2012-09-22 Thread Georg Brandl 

Georg Brandl added the comment:

Picked as 6708224f8bee.

--
status: open - closed

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[issue15926] Segmentation fault after multiple reinitializations

2012-09-12 Thread Stefan Krah 

Stefan Krah added the comment:

The segfault occurs in a path in import.c that has a comment XXX this
this should really not happen.:

Program received signal SIGSEGV, Segmentation fault.
0x0047d733 in type_dealloc (type=0x8381e0) at Objects/typeobject.c:2694
2694_PyObject_GC_UNTRACK(type);
(gdb) bt
#0  0x0047d733 in type_dealloc (type=0x8381e0) at 
Objects/typeobject.c:2694
#1  0x0045d8ef in free_keys_object (keys=0x8eb810) at 
Objects/dictobject.c:374
#2  0x00463513 in dict_dealloc (mp=0x8fa9c0) at 
Objects/dictobject.c:1392
#3  0x00503118 in _PyImport_FixupExtensionObject (mod=0xa0cd40, 
name=0xb1fa90, 
filename=0xb1fa90) at Python/import.c:498



(gdb) f 3
#3  0x00503118 in _PyImport_FixupExtensionObject (mod=0xa0cd40, 
name=0xb1fa90, 
filename=0xb1fa90) at Python/import.c:498
498 Py_DECREF(def-m_base.m_copy);
(gdb) l
493 if (def-m_size == -1) {
494 if (def-m_base.m_copy) {
495 /* Somebody already imported the module,
496likely under a different name.
497XXX this should really not happen. */
498 Py_DECREF(def-m_base.m_copy);
499 def-m_base.m_copy = NULL;
500 }
501 dict = PyModule_GetDict(mod);
502 if (dict == NULL)

--
nosy: +brett.cannon, eric.snow, pitrou, skrah

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[issue15926] Segmentation fault after multiple reinitializations

2012-09-12 Thread Stefan Krah 

Stefan Krah added the comment:

Maybe related: If you increase the number of passes in Modules/_testembed.c, 
pass 9 fails:

--- Pass 9 ---
_testembed: Objects/typeobject.c:2693: type_dealloc: Assertion `type-tp_flags 
 (1L9)' failed.
Aborted

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[issue15926] Segmentation fault after multiple reinitializations

2012-09-12 Thread Stefan Krah 

Changes by Stefan Krah stefan-use...@bytereef.org:


--
components: +Interpreter Core
stage:  - needs patch
type:  - crash

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[issue15926] Segmentation fault after multiple reinitializations

2012-09-12 Thread Roundup Robot 

Roundup Robot added the comment:

New changeset 8d22d9528164 by Antoine Pitrou in branch 'default':
Issue #15926: Fix crash after multiple reinitializations of the interpreter.
http://hg.python.org/cpython/rev/8d22d9528164

--
nosy: +python-dev

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[issue15926] Segmentation fault after multiple reinitializations

2012-09-12 Thread Antoine Pitrou 

Antoine Pitrou added the comment:

This should be fixed now. Georg, this is up to you whether this deserves being 
ported to 3.3.0 or not.

--
assignee:  - georg.brandl
nosy: +georg.brandl
resolution:  - fixed
stage: needs patch - committed/rejected

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[issue15926] Segmentation fault after multiple reinitializations

2012-09-12 Thread Arfrever Frehtes Taifersar Arahesis 

Arfrever Frehtes Taifersar Arahesis added the comment:

+1 for including the fix in 3.3.0.
This segmentation fault was reproducible in test suite of dbus-python:
http://cgit.freedesktop.org/dbus/dbus-python/tree/test/import-repeatedly.c

--
priority: high - release blocker

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[issue15926] Segmentation fault after multiple reinitializations

2012-09-11 Thread Arfrever Frehtes Taifersar Arahesis 

New submission from Arfrever Frehtes Taifersar Arahesis:

#include Python.h
#include stdlib.h
int main()
{
int i;
for (i = 0; i  100; i++) {
printf(%d\n, i);
Py_Initialize();
Py_Finalize();
}
return 0;
}

The above code succeeds with Python 3.2, but causes segmentation fault with 
Python 3.3:

$ ./reinitializations
0
1
2
3
4
5
6
7
8
9
Segmentation fault
$

--
keywords: 3.3regression
messages: 170349
nosy: Arfrever
priority: high
severity: normal
status: open
title: Segmentation fault after multiple reinitializations
versions: Python 3.3

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