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[Octave-bug-tracker] [bug #44621] Segfault with clf.m test


From: Guillaume
Subject: [Octave-bug-tracker] [bug #44621] Segfault with clf.m test
Date: Fri, 27 Mar 2015 21:43:01 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:36.0) Gecko/20100101 Firefox/36.0

Follow-up Comment #5, bug #44621 (project octave):

Sorry for the slow reply but am away from the VM where I observed the
segfault.
In the meantime, I build another VM (openSUSE 13.2 and VirtualBox (was using
VMware earlier)) and hopefully it gives more insights of what is going on:

* test("clf") still returns a segfault:

>> test clf
libGL error: pci id for fd 16: 80ee:beef, driver (null)
OpenGL Warning: Failed to connect to host. Make sure 3D acceleration is
enabled for this VM.
libGL error: core dri or dri2 extension not found
libGL error: failed to load driver: vboxvideo
panic: Segmentation fault -- stopping myself...
Segmentation fault


* I also tried this:

>> graphics_toolkit fltk
>> hf = figure ("visible", "off"); reset (hf); close (hf);
libGL error: pci id for fd 17: 80ee:beef, driver (null)
OpenGL Warning: Failed to connect to host. Make sure 3D acceleration is
enabled for this VM.
libGL error: core dri or dri2 extension not found
libGL error: failed to load driver: vboxvideo
>> exit

^Cpanic: Segmentation fault -- stopping myself...


* And this where it also doesn't segfault straight away but at exit:

>> test graphics.cc-tst
libGL error: pci id for fd 16: 80ee:beef, driver (null)
OpenGL Warning: Failed to connect to host. Make sure 3D acceleration is
enabled for this VM.
libGL error: core dri or dri2 extension not found
libGL error: failed to load driver: vboxvideo
PASSES 37 out of 37 tests
>> test graphics.cc-tst
PASSES 37 out of 37 tests
>> exit

^Cpanic: Segmentation fault -- stopping myself...
attempting to save variables to 'octave-workspace'...
*** Error in `/home/octave/.build/src/.libs/octave-gui': corrupted
double-linked list: 0x00007fb0649983e0 ***
panic: attempted clean up apparently failed -- aborting...
Aborted


I'd be happy to provide a gdb backtrace but I would indeed need further
instructions to do so.

I don't remember seeing any libGL errors when using a VMware VM instead of
VirtualBox so this is not necessarily directly related to my initial report.

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