[Texmacs-dev] Re: [TeXmacs] Texmacs 1.0.6.14 segfault

[Henri Lesourd]

Martin Costabel wrote:

> Henri Lesourd wrote:
>
> > Peter Rapčan wrote:
> >
> > > Hi,
> > >
> > > After upgrading to the latest fink unstable version my Texmacs 
> > > segfaults when closing a document . See the standard output:
> > >
> > > texmacs
> > > TeXmacs] With linked TrueType support
> > > TeXmacs] Loading corktounicode
> > > TeXmacs] Loading unicode-cork-oneway
> > > TeXmacs] Loading tmuniversaltounicode
> > > TeXmacs] Loading unicode-symbol-oneway
> > > Segmentation fault
> > This is a known bug which appeared some versions ago,
> > as far as I can remember (see e.g. mails on TeXmacs-dev
> > from 1/11/08).
> >
> > I'm currently plugging back the actions in the menus
> > of my Qt version of TeXmacs, thus I should come across
> > this bug soon.
>
>
> I can tell you the line where it happens:
>
> In src/Texmacs/Data/tm_data.cpp, the last line of 
> tm_data_rep::delete_view ():
>
>   delete vw;
Uh, crappy.

> In particular I have no idea what happens when a destructor is called 
> that is not defined.
It should just free the object. The fact that it crashes
means that the memory is badly corrupted (by something
else, we don't know what ;-(... ).


> The trade-off may be a memory leak or worse

Removing this instruction will not solve the corruption
problem...


P.S. : I move the thread to texmacs-dev, which is the place
 where bug-related discussions should occur.