Bugs item #1662529, was opened at 2007-02-17 13:38
Message generated for change (Comment added) made by nnorwitz
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Category: Python Interpreter Core
>Group: 3rd Party
>Status: Closed
>Resolution: Invalid
Priority: 5
Private: No
Submitted By: Matthias Klose (doko)
Assigned to: Nobody/Anonymous (nobody)
Summary: [2.5 regression?] failure to import the ORBit extension
Initial Comment:
seen with 2.5 SVN 20070216, with an interpreter built with --enable-pydebug,
succeeds with a 2.4.4 interpreter built with --enable-pydebug:
pyorbit is version 2.14.1.
$ python-dbg -c 'import ORBit'
[26750 refs]
Fatal Python error: ../Objects/tupleobject.c:169 object at 0x8186bdc has
negative ref count -1
Aborted (core dumped)
(gdb) bt
#0 0xb7f89410 in __kernel_vsyscall ()
#1 0xb7e11df0 in raise () from /lib/tls/i686/cmov/libc.so.6
#2 0xb7e13641 in abort () from /lib/tls/i686/cmov/libc.so.6
#3 0x081174f8 in Py_FatalError (
msg=0xbfd0ef78 "../Objects/tupleobject.c:169 object at 0x8186bdc has
negative ref count -1")
at ../Python/pythonrun.c:1555
#4 0x08093305 in _Py_NegativeRefcount (fname=0x816f958
"../Objects/tupleobject.c", lineno=169, op=0x8186bdc)
at ../Objects/object.c:193
#5 0x080add27 in tupledealloc (op=0xb7a1bd1c) at ../Objects/tupleobject.c:169
#6 0x080973a6 in _Py_Dealloc (op=0xb7a1bd1c) at ../Objects/object.c:1928
#7 0x0814d037 in func_dealloc (op=0xb7a1d1c4) at ../Objects/funcobject.c:451
#8 0x080973a6 in _Py_Dealloc (op=0xb7a1d1c4) at ../Objects/object.c:1928
#9 0x0808eb99 in dict_dealloc (mp=0xb7a1c494) at ../Objects/dictobject.c:819
#10 0x080973a6 in _Py_Dealloc (op=0xb7a1c494) at ../Objects/object.c:1928
#11 0x0806459e in class_dealloc (op=0xb7a0bdb4) at ../Objects/classobject.c:184
#12 0x080973a6 in _Py_Dealloc (op=0xb7a0bdb4) at ../Objects/object.c:1928
#13 0x080add3b in tupledealloc (op=0xb7a22edc) at ../Objects/tupleobject.c:169
#14 0x080973a6 in _Py_Dealloc (op=0xb7a22edc) at ../Objects/object.c:1928
#15 0x08064540 in class_dealloc (op=0xb7a2446c) at ../Objects/classobject.c:183
#16 0x080973a6 in _Py_Dealloc (op=0xb7a2446c) at ../Objects/object.c:1928
#17 0x080add3b in tupledealloc (op=0xb7a243dc) at ../Objects/tupleobject.c:169
#18 0x080b13fe in subtype_dealloc (self=0xb7a243dc) at
../Objects/typeobject.c:709
#19 0x080973a6 in _Py_Dealloc (op=0xb7a243dc) at ../Objects/object.c:1928
#20 0x0808eb99 in dict_dealloc (mp=0xb7dcf214) at ../Objects/dictobject.c:819
#21 0x080973a6 in _Py_Dealloc (op=0xb7dcf214) at ../Objects/object.c:1928
#22 0x08112acb in PyInterpreterState_Clear (interp=0x81b8020) at
../Python/pystate.c:107
#23 0x081145be in Py_Finalize () at ../Python/pythonrun.c:441
#24 0x08059eb0 in Py_Main (argc=3, argv=0xbfd0f5b4) at ../Modules/main.c:545
#25 0x08058da6 in main (argc=Cannot access memory at address 0x155c
) at ../Modules/python.c:23
----------------------------------------------------------------------
>Comment By: Neal Norwitz (nnorwitz)
Date: 2007-03-26 23:18
Message:
Logged In: YES
user_id=33168
Originator: NO
These problems are almost always issues in the third party modules. I'm
closing this on the basis that the problem is likely in ORBit. If you have
more information that points to the core as the likely cause, please reopen
this report. Without more info, we can't help with this problem.
Note another problem could be that Python 2.5 does not allow the memory
APIs to be mixed as they used to. This could also lead to a problem like
this (though I think it often leads to a crash earlier IIRC.)
----------------------------------------------------------------------
Comment By: Collin Winter (collinwinter)
Date: 2007-03-09 19:51
Message:
Logged In: YES
user_id=1344176
Originator: NO
The error message and backtrace here don't prove that it's a regression in
Python: it could easily be a problem with an extension module.
Do you get this error if you compile Python 2.5 without --with-pydebug?
Is "ORBit" provided by the project at
http://sourceforge.net/projects/orbit-python/ or the one at
http://ftp.gnome.org/pub/GNOME/sources/pyorbit/? If the former, the
project's SF page says active development stopped in 2004, so there's no
way it could support Python 2.5.
----------------------------------------------------------------------
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