[Python-Dev] How to debug python crashes (original) (raw)

Philippe Fremy phil at freehackers.org
Tue May 14 17:29:52 CEST 2013

On 14/05/2013 14:49, Tim Golden wrote:

On 14/05/2013 13:32, Philippe Fremy wrote:

I have a reproducable crash on Windows XP with Python 2.7 which I would like to investigate. I have Visual Studio 2008 installed and I downloaded the pdb files. However I could not find any instructions on how to use them and was unsuccessful at getting anything out of it.

I checked the developer guide but could not find anything on debugging crashes. On internet, this seems to be also an underdocumented topic. So, a few questions : - is there some documentation to help debugging crashes ? I don't think there is. As you say, it's somewhat underdocumented. Maybe someone else can point to something, but I'm not aware of anything. But what's the reason for releasing them ? If you need to recompile Python to use them, that would be strange because they are generated as part of the compilation process anyway.

Are you in a position to post a reproducible test case to the tracker? Or were you holding back until you'd done some analysis?

I can reproduce it systematically, with an open source project (I am debugging winpdb) but this occurs in a middle of a multithreaded XML-RPC server running a python debugger in another thread. So no, I don't have a test case and identifying clearly the bug would make me a small and happy python contributor.

cheers,

Philippe

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