[ python-Bugs-1734164 ] sqlite3 causes memory read error

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Bugs item #1734164, was opened at 2007-06-10 03:46
Message generated for change (Comment added) made by ishimoto
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Category: Extension Modules
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: atsuo ishimoto (ishimoto)
Assigned to: Nobody/Anonymous (nobody)
Summary: sqlite3 causes memory read error

Initial Comment:
Attached script causes memory read error at sqlite3.pyd.
Tested on Python 2.5.1/Windows XP.

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>Comment By: atsuo ishimoto (ishimoto)
Date: 2007-06-11 17:31

Message:
Logged In: YES 
user_id=463672
Originator: YES

Purify is not needed to find this problem, since python aborts 
by running test script. VisualC++ reports memory read error occurred.

Problem might be in the sqlite, not sqlite3. I'm not sure which is. 
I failed to find this problem at sqlite's trac.

Here's stack trace::

sqlite3.dll!60931bb0() 	
_sqlite3.pyd!00ac5887() 	
_sqlite3.pyd!00ac589e() 	
_sqlite3.pyd!00ac3e6f() 	
_sqlite3.pyd!00ac4251() 	
python25.dll!PyCFunction_Call(_object * func=0x00bedd78, _object *
arg=0x00be66f0, _object * kw=0x00000000)  行 73 + 0x8	C
python25.dll!call_function(_object * * * pp_stack=0x0021fdc0, int oparg=0)
 行 3564 + 0x8f	C
python25.dll!PyEval_EvalFrameEx(_frame * f=0x00ba89e8, int throwflag=0) 
行 2270	C
python25.dll!PyEval_EvalCodeEx(PyCodeObject * co=0x00bcae30, _object *
globals=0x00ba89e8, _object * locals=0x00b7cdb0, _object * *
args=0x00000000, int argcount=0, _object * * kws=0x00000000, int kwcount=0,
_object * * defs=0x00000000, int defcount=0, _object * closure=0x00000000) 
行 2831 + 0x8	C
python25.dll!PyEval_EvalCode(PyCodeObject * co=0x00bcae30, _object *
globals=0x00b7cdb0, _object * locals=0x00b7cdb0)  行 499 + 0x22	C
python25.dll!run_mod(_mod * mod=0x00c48538, const char *
filename=0x00bec770, _object * globals=0x00b7cdb0, _object *
locals=0x00b7cdb0, PyCompilerFlags * flags=0xbdf20da3, _arena *
arena=0x00000000)  行 1271 + 0x11	C
python25.dll!PyRun_FileExFlags(_iobuf * fp=0x7c3ab698, const char *
filename=0x00ab3e4b, int start=257, _object * globals=0x00b7cdb0, _object *
locals=0x00b7cdb0, int closeit=1, PyCompilerFlags * flags=0x0021ff1c)  行
1258	C
python25.dll!PyRun_SimpleFileExFlags(_iobuf * fp=0x7c3ab698, const char *
filename=0x00ab3e4b, int closeit=1, PyCompilerFlags * flags=0x0021ff1c) 
行 878 + 0x18	C
python25.dll!PyRun_AnyFileExFlags(_iobuf * fp=0x7c3ab698, const char *
filename=0x00ab3e4b, int closeit=1, PyCompilerFlags * flags=0x0021ff1c) 
行 696 + 0x11	C
python25.dll!Py_Main(int argc=2, char * * argv=0x00000001)  行 526 +
0x21	C
python.exe!1d0011a5() 	
kernel32.dll!7c816fd7() 	


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Comment By: Neal Norwitz (nnorwitz)
Date: 2007-06-11 05:56

Message:
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I can't reproduce this on Linux with valgrind.  Did you use purify to find
this problem?

Can you provide the complete report that shows the memory read error with
the call stack?  
Are you sure the problem is in the python code?  
Could the problem be in the sqlite code itself?

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