[Octave-bug-tracker] [bug #44328] segfault on QtHandles::ObjectProxy::finalize

[Mike Miller]

Follow-up Comment #7, bug #44328 (project octave):

We do have debug symbols available for all Octave code, I can poke at whatever
you think might be useful.

Anyway, I worked out a couple of minimal examples that demonstrate the
segfault every time on the hydra built Octave:


graphics_toolkit qt
hf = figure ("visible", "off"); reset (hf); close (hf);


or this:


graphics_toolkit qt
hf = figure ();
close (hf);
hf = figure ("visible", "off");
reset (hf);  ## segfault


The following does *not* segfault:


graphics_toolkit qt
hf = figure (); reset (hf); close (hf);
hf = figure ("visible", "off"); close (hf);


IOW, the reset has to be done on a figure created with "visible" = "off", and
it has to be on the same line as a close or after a close has been performed
at least once on any figure.

And of course none of these segfault for me on Debian.

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