Re: [Bug-apl] aplwrap assertion failures

[David B. Lamkins]

FWIW: commenting out the gtk_text_view_scroll_to_mark() call in
scroll_to_cursor() does not affect the crash that I'm seeing (which is
different in its details from the crash that Blake reported). I still
get a memory corruption report, though...

On Fri, 2014-09-12 at 09:46 -0700, David B. Lamkins wrote:
> I reached similar conclusions. It seems that copy/paste tickles this
> bug.
> 
> Copy, then paste, then evaluate, then click the close box: this is
> enough to give me GTK+ errors and even stack dumps.
> 
> These are probably the important clues:
> 
> GLib-GObject-WARNING **: invalid unclassed pointer in cast to
> 'GtkTextView'
> (aplwrap:29325): Gtk-CRITICAL **: gtk_text_view_scroll_to_mark:
> assertion 'GTK_IS_TEXT_VIEW (text_view)' failed
> 
> gtk_text_view_scroll_to_mark() appears (in aplwrap code) only in
> scroll_to_cursor(). Is the cast in that function incorrect?
> 
> On Fri, 2014-09-12 at 10:47 -0500, Blake McBride wrote:
> > Here are the steps that reproduce the problem:
> > 
> > 
> > 1.  Execute aplwrap
> > 
> > 
> > 2.  Type the following:
> > 
> > 
> >               ∇test
> > [1] abc
> > [2] 
> > 
> > 
> > 3.  Highlight and COPY (^C) the 'abc'
> > 
> > 
> > 4.  Click on the end of the [2] line
> > 
> > 
> > 5.  PASTE (^V) the 'abc' (has no quotes)
> > 
> > 
> > 6.  Hit the backspace key 3 times
> > 
> > 
> > 7.  Hit the X in the upper corner to force aplwrap to exit.  This
> > causes the error.
> > 
> > 
> > Does this give you errors too?
> > 
> > 
> > Thanks.
> > 
> > 
> > Blake
> > 
> > 
> > 
> > On Fri, Sep 12, 2014 at 9:05 AM, Chris Moller <address@hidden>
> > wrote:
> >         
> >         On 09/12/14 09:58, Blake McBride wrote:
> >         
> >         > I am using vanilla LinuxMint 16.  GTK comes with it.
> >         >  Upgrading to test is sort of a big job that messes up
> >         > auto-update.  Let me see if I can get an exact sequence to
> >         > duplicate the problem instead.  Is that okay?
> >         
> >         Sure.  And I might have a spare machine I can install 3.8.7 on
> >         just to see what happens.
> >         
> >         > 
> >         > On Fri, Sep 12, 2014 at 8:49 AM, Chris Moller
> >         > <address@hidden> wrote:
> >         >         Can you try putting in a newer version?  3.8.7 is
> >         >         from November of last year.  They've done a  lot of
> >         >         bug-fixing since then and it would be good to know
> >         >         if the bug is on my end or in GTK. 
> >         >         
> >         >         
> >         >         
> >         >         
> >         >         On 09/12/14 09:40, Blake McBride wrote:
> >         >         
> >         >         > Looks like I am running 3.8.7 
> >         >         > 
> >         >         > On Fri, Sep 12, 2014 at 8:25 AM, Chris Moller
> >         >         > <address@hidden> wrote:
> >         >         >         What version of GTK are you using?  I'm
> >         >         >         running 3.10.9 though in configure.ac I'm
> >         >         >         only checking for versions >= 3.0.12.
> >         >         >         There may be some incompatibility. 
> >         >         >         
> >         >         >         
> >         >         >         
> >         >         >         On 09/12/14 08:39, Blake McBride wrote:
> >         >         >         
> >         >         >         > Greetings, 
> >         >         >         > 
> >         >         >         > 
> >         >         >         > I was in the middle of editing a
> >         >         >         > function using the regular del-editor, I
> >         >         >         > copied and pasted a line, I then exited
> >         >         >         > aplwrap by clicking on the x in the
> >         >         >         > upper left hand corner of the screen
> >         >         >         > without closing the function I was
> >         >         >         > editing.  Aplwrap gave me:
> >         >         >         > 
> >         >         >         > 
> >         >         >         > (aplwrap:29325): Gtk-CRITICAL **:
> >         >         >         > gtk_main_quit: assertion 'main_loops !=
> >         >         >         > NULL' failed
> >         >         >         > 
> >         >         >         > 
> >         >         >         > (aplwrap:29325): GLib-GObject-WARNING
> >         >         >         > **: invalid unclassed pointer in cast to
> >         >         >         > 'GtkTextView'
> >         >         >         > 
> >         >         >         > 
> >         >         >         > (aplwrap:29325): Gtk-CRITICAL **:
> >         >         >         > gtk_text_view_scroll_to_mark: assertion
> >         >         >         > 'GTK_IS_TEXT_VIEW (text_view)' failed
> >         >         >         > *** Error in `aplwrap': malloc():
> >         >         >         > smallbin double linked list corrupted:
> >         >         >         > 0x0000000001f88cc0 ***
> >         >         >         > 
> >         >         >         > 
> >         >         >         > 
> >         >         >         > 
> >         >         >         > Thanks.
> >         >         >         > 
> >         >         >         > 
> >         >         >         > Blake
> >         >         >         > 
> >         >         >         > 
> >         >         >         
> >         >         >         
> >         >         > 
> >         >         > 
> >         >         
> >         >         
> >         > 
> >         > 
> >         
> >         
> > 
> > 
>