Bugs item #1740599, was opened at 2007-06-20 16:24
Message generated for change (Comment added) made by stuffduff
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Category: Extension Modules
Group: Python 2.4
>Status: Closed
Resolution: None
Priority: 5
Private: No
Submitted By: Sean (stuffduff)
Assigned to: Nobody/Anonymous (nobody)
Summary: python: Modules/gcmodule.c:240: update_refs: Assertion `gc->
Initial Comment:
Extension module loads and runs correctly.
When exiting python the following error occurrs:
GNU gdb Red Hat Linux (6.5-15.fc6rh)
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GDB is free software, covered by the GNU General Public License, and you are
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This GDB was configured as "i386-redhat-linux-gnu"...Using host
libthread_db library "/lib/libthread_db.so.1".
(gdb) run
Starting program: python2.4
...
<ctrl-d>
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1208243504 (LWP 12884)]
collect (generation=2) at Modules/gcmodule.c:241
241 Modules/gcmodule.c: No such file or directory.
in Modules/gcmodule.c
(gdb) bt
#0 collect (generation=2) at Modules/gcmodule.c:241
#1 0x080e1ec5 in PyGC_Collect () at Modules/gcmodule.c:1196
#2 0x080da88a in Py_Finalize () at Python/pythonrun.c:353
#3 0x08055176 in Py_Main (argc=0, argv=0xbfb8dae4) at Modules/main.c: 513
#4 0x08054962 in main (argc=-1208273400, argv=0x812ed68) at Modules/python.c:23
Debug build of python2.4.4 gives:
python: Modules/gcmodule.c:240: update_refs: Assertion `gc->gc.gc_refs == (-3)'
failed.
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>Comment By: Sean (stuffduff)
Date: 2007-06-25 20:18
Message:
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Close this. I found the error. Sorry.
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Comment By: Sean (stuffduff)
Date: 2007-06-21 15:55
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Very stripped down, but complex instructions. See the README file.
PUTENV replaces the need for an environment variable.
File Added: pyGTMbug.tar.gz
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Comment By: Neal Norwitz (nnorwitz)
Date: 2007-06-21 00:41
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I forgot to mention about the putenv()s. Are those necessary? The
directories won't exist on any one else's box. If those are not necessary
to cause the assertion, remove those too from the minimal test case.
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Comment By: Neal Norwitz (nnorwitz)
Date: 2007-06-21 00:40
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I looked at the attachment and it's not clear how you are using this given
there is a main(). The main() doesn't have a Py_Initialize() either. So
I'm guessing that was left over and you are really using this as a module.
Can you reduce it to the minimal test case? Remove the main() and all the
methods that are not used and will cause the crash. Also what is the
python code that you execute. Basically can you demonstrate a complete
scenario (how to build and execute) to cause the problem.
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