[pywin32-bugs] [ pywin32-Bugs-1442426 ] Crash on startup with Windows 2003 and AMD X2 dual core

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Bugs item #1442426, was opened at 2006-03-03 12:07
Message generated for change (Comment added) made by lukeplant
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Category: pythonwin
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Luke Plant (lukeplant)
Assigned to: Nobody/Anonymous (nobody)
Summary: Crash on startup with Windows 2003 and AMD X2 dual core 

Initial Comment:
I have installed Python 2.4 and Pythonwin build 207 on
a brand new Windows Server 2003 system.  When I run
pythonwin, it crashes after drawing the mainwindow and
part way through drawing the interactive window. I get
the following error message:

> The instruction at "0x00affa6c" referenced memory at 
> "0x00affa6c".  The memory could not be "written"

I have installed exactly the same version of pythonwin
on an almost identical system, but with different
hardware, so I suspect it is something to do with the
processor on this one.  The processor is an "AMD 64 X2
Dual Core 4400+".

Visual Studio attempts to debug it, but of course there
isn't any source code.  In the disassembly listing, the
following line is highlighted:

00AFFA6C  pop         eax 

I can give more than this if required, but I don't know
whether it would be useful (or how much to include).

Thanks.

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>Comment By: Luke Plant (lukeplant)
Date: 2006-03-03 14:19

Message:
Logged In: YES 
user_id=621233

I've discovered that it is related to 'DEP' (Data Execution
Prevention) which is available with some AMD processors. 
You can disable this on a per-process basis in Windows - go
to Control Panel -> System -> 'Advanced' tab -> Performance
'Settings' -> 'DEP' tab

It's still a bug in pythonwin though.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=551954&aid=1442426&group_id=78018