[vtkusers] vtk4.2 + Python2.3 + win = works,but repr(<vtk object>) crashes

[Frank Conradie]

I've so far tracked the problem down to line 109 in vtkPythonUtil.cxx:

self->vtk_ptr->Print(buf);

It works if I comment out this line, or replace it with something like:

buf << self.vtk_ptr->GetClassName();

I'll investigate further tomorrow - it's getting late!

Regards,
Frank

----- Original Message -----
From: "Frank Conradie" <frank at qfin.net>
To: "Prabhu Ramachandran" <prabhu at aero.iitm.ernet.in>
Cc: "vtkusers" <vtkusers at www.vtk.org>
Sent: Friday, September 19, 2003 8:09 PM
Subject: Re: [vtkusers] vtk4.2 + Python2.3 + win = works,but repr(<vtk
object>) crashes


> Hi Prabhu (and list)
>
> Here is what I get, after a rather painful bcc32 debug build ;-)
>
> >>> a = vtkActor()
> >>> a
> <vtkRenderingPython.vtkOpenGLActor vtkobject at 0076A158>
> >>> print a
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x3253db97 in
> cc3250mt!@std@%num_put$c48std@%ostreambuf_iterator$c19std@%char_t
>
aits$c%%%@do_put$xq48std@%ostreambuf_iterator$c19std@%char_traits$c%%r12std@
> ios
> basecd () from /cygdrive/c/Borland/BCC55/Bin/cc3250mt.dll
> (gdb) backtrace
> #0  0x3253db97 in
> cc3250mt!@std@%num_put$c48std@%ostreambuf_iterator$c19std@%ch
>
r_traits$c%%%@do_put$xq48std@%ostreambuf_iterator$c19std@%char_traits$c%%r12
> std
> ios_basecd () from /cygdrive/c/Borland/BCC55/Bin/cc3250mt.dll
> #1  0x3250b1ec in cc3250mt!@__rwstd@%timepunct$b%@do_monthname$xqio ()
>    from /cygdrive/c/Borland/BCC55/Bin/cc3250mt.dll
> #2  0x3250f3dd in cc3250mt!@_vcl_GetHeapStatus$qv ()
>    from /cygdrive/c/Borland/BCC55/Bin/cc3250mt.dll
> #3  0x32523d08 in
> cc3250mt!@std@%basic_string$b19std@%char_traits$b%17std@%allo
>
ator$b%%@assign$qrx60std@%basic_string$b19std@%char_traits$b%17std@%allocato
> r$b
> % () from /cygdrive/c/Borland/BCC55/Bin/cc3250mt.dll
> #4  0x00a19c5d in
> vtkCommon!@vtkHeap at CollectRevisions$qr42std@%basic_ostream$c1
> std@%char_traits$c%% () from /cygdrive/c/vtk42/bin/vtkCommon.dll
> #5  0x00a42162 in vtkCommon!@vtkLocator at IsTypeOf$qpxc ()
>    from /cygdrive/c/vtk42/bin/vtkCommon.dll
> #6  0x00a420ba in vtkCommon!@vtkLocator at IsA$qpxc ()
>    from /cygdrive/c/vtk42/bin/vtkCommon.dll
> #7  0x008d9ad7 in vtkCommonPython!_PyVTKClass_vtkTetraNew ()
>    from
> /cygdrive/c/Python23/lib/site-packages/vtk_python/vtkCommonPython.dll
> #8  0x1e05b682 in python23!PyObject_Str ()
>    from /cygdrive/c/WINNT/System32/python23.dll
>
> Any ideas where I can go from here?
>
> Regards,
> Frank Conradie
> Rossland, BC, Canada
>
> ----- Original Message -----
> From: "Prabhu Ramachandran" <prabhu at aero.iitm.ernet.in>
> To: "Frank Conradie" <frank at qfin.net>
> Cc: "vtkusers" <vtkusers at www.vtk.org>
> Sent: Friday, September 19, 2003 3:21 PM
> Subject: Re: [vtkusers] vtk4.2 + Python2.3 + win = works,but repr(<vtk
> object>) crashes
>
>
> > >>>>> "FC" == Frank Conradie <frank at qfin.net> writes:
> >
> >     FC> Hi Prabhu I did what you suggested, but only got the
> >     FC> following:
> >
> > [snip]
> >
> >     FC> I guess need to build debug libs, but which ones?
> >
> > Could you recompile with -O2 -g and recheck if possible?  From what
> > I've seen so far others have not run into such a severe problem.
> > Personally I'm still using 2.2 so would not know.
> >
> > cheers,
> > prabhu
> >
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