Re: [jazzplusplus-devel] Core dumpage

[joakim v. <jo...@ve...>]

Hope your fix makes it into the core wxGTK distribution.

Have you checked if the bug is still in the wxGTK 2.5 beta?

Cheers,
/Joakim

Matt Kelly wrote:

>OK, I've found the problem.  It's a wxGTK bug, in the wxString
>class.
>
>The default constructor initializes a pointer data member (the member that
>holds the actual storage) to NULL.  The destructor blindly 
>dereferences this pointer.  If the string never gets set to anything,
>it dereferences a NULL pointer minus an index, making for a truly
>horrible pointer value.
>
>Unfortunately, the wxGTK library has a few global wxString variables
>which normally don't get used.  Thus, they contain these NULL pointers
>and seg fault on exit when their destructors get called globally.
>
>There is a very simple fix, but sadly, the bug is within wxGTK.
>If anyone is interested, I'll post the fix.  I'll also contact
>the wxWindows team and notify them.
>
>Matt
>
>  
>
>>As Patrick wrote, It's been there as long as I can remember.
>>
>>It has always annoyed me so it would be great if you could eliminate it.
>>
>>Cheers,
>>/Joakim
>>
>>Matt Kelly wrote:
>>
>>    
>>
>>>All,
>>>
>>>I've been looking into why JAZZ dumps core when you exit.
>>>I think I may be onto something.  It appears to be dumping
>>>core during the destruction of a global wxString located
>>>within the wxGTK library itself.  Not sure if it's a wxGTK
>>>bug, a wxWindows bug, or if it's something we're causing,
>>>but it smells like it might be a wxGTK bug.
>>>
>>>My question to the group: how many of you see this behavior?
>>>I'm asking because I see the same behavior with Audacity.
>>>My copy of Audacity came bundled with my SuSE installation.
>>>This seems to reinforce my beliefs.
>>>
>>>Also, interestingly, I grabbed the latest wxGTK source, and
>>>compiled it in debug mode, and installed it.  I made Jazz
>>>use it for its compiling.  Guess what, same thing on exit!!!
>>>
>>>I just want to see if other distros see this same behavior.
>>>
>>>Thanks,
>>>
>>>Matt
>>>      
>>>
>
>
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