Re: [Audacity-devel] Bug in 1.2.x

[Richard A. <ri...@au...>]

On Sun, 2006-04-09 at 21:47 -0700, Dominic Mazzoni wrote:
> Thanks, Richard.  If it's repeatable then I will definitely be able  
> to track it down and fix it, even if it is tricky.
There's a note of the actions to reproduce it (from the original
reporter) in the zip file, and certainly for me it crashes every time,
at the same place.

Richard

> On Apr 9, 2006, at 5:11 PM, Richard Ash wrote:
> > I'm trying to trace a bug in 1.2.4 that causes some projects to crash
> > whenever you do a paste. I'm in the process of uploading my test case
> > (from a user) to a web server, but the basic problem is that at  
> > line 593
> > of Envelope.cpp there is a call to an array which causes a  
> > segfault. GDB
> > isn't a lot of help because it always trails out to Envelope.h line  
> > 74,
> > which reads:
> >   WX_DEFINE_ARRAY(EnvPoint *, EnvArray);
> > in other words, the real problem is inside the symbol that is used
> > there.
> > It isn't a simple subscript out of range problem either - it's  
> > trying to
> > dereference the pointer at index 0 in the array, which happens  
> > elsewhere
> > in the file perfectly happily. I can't quite see what is different,  
> > and
> > yet with this project the crash is absolutely repeatable.
> >
> > 24MB test file is here:
> >   http://ystv.york.ac.uk/~richard/YSTV/glitch.zip
> >
> > Richard
> >
> >
> >
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> 
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