[Octave-bug-tracker] [bug #48519] Segfault with Qt plotting when running demos

[Andreas Weber]

Follow-up Comment #24, bug #48519 (project octave):

I'm able to reproduce this with a current build of stable with a stripped
dump_plot_demos.m (see attachments)

It can take up to 30mins until I see the segfault:

Printing "waterfall_01.png" ... 
Thread 16 "QThread" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffb6560700 (LWP 18240)]
0x00007ffff32800f3 in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
(gdb) bt
#0  0x00007ffff32800f3 in QMetaObject::activate(QObject*, int, int, void**)
()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fffb47925d2 in QtHandles::Figure::updateBoundingBoxHelper
(data=0x55555659af30)
    at ../octave-src/libgui/graphics/Figure.cc:634


see backtrace.log for full backtrace but without debugging symbols. I'll du a
debug build next

(file #45790, file #45791)
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Additional Item Attachment:

File name: backtrace.log                  Size:7 KB
File name: dump_plot_demos.m              Size:0 KB


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