[Octave-bug-tracker] [bug #53733] Panic/segfault when calling Java method after forge:im[read|write]

[Adrian]

Follow-up Comment #33, bug #53733 (project octave):

@John W. Eaton / comment #30: Yes, octave-cli under gdb fails the test (output
below). 

octave-cli however executes the instructions  and returns to a prompt when
*not* run under gdb, contrary to 'octave --no-gui'. Aren't those equivalent ?


$> gdb --args octave-cli --norc
GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from octave-cli...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/octave-cli --norc
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe1578700 (LWP 9638)]
[New Thread 0x7fffe0d77700 (LWP 9639)]
[New Thread 0x7fffde576700 (LWP 9640)]
[New Thread 0x7fffd9d75700 (LWP 9641)]
[New Thread 0x7fffd9574700 (LWP 9642)]
[New Thread 0x7fffd4d73700 (LWP 9643)]
[New Thread 0x7fffd4572700 (LWP 9644)]
[New Thread 0x7fffcfd71700 (LWP 9645)]
[New Thread 0x7fffcd570700 (LWP 9646)]
[New Thread 0x7fffccd6f700 (LWP 9647)]
[New Thread 0x7fffc856e700 (LWP 9648)]
[New Thread 0x7fffc5d6d700 (LWP 9649)]
[New Thread 0x7fffc356c700 (LWP 9650)]
[New Thread 0x7fffc0d6b700 (LWP 9651)]
[New Thread 0x7fffbe56a700 (LWP 9652)]
GNU Octave, version 4.2.2
Copyright (C) 2018 John W. Eaton and others.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  For details, type 'warranty'.

Octave was configured for "x86_64-pc-linux-gnu".

Additional information about Octave is available at http://www.octave.org.

Please contribute if you find this software useful.
For more information, visit http://www.octave.org/get-involved.html

Read http://www.octave.org/bugs.html to learn how to submit bug reports.
For information about changes from previous versions, type 'news'.

octave:1> javaaddpath(".")
[New Thread 0x7fff9eef5700 (LWP 9653)]
[New Thread 0x7fff9edf3700 (LWP 9654)]
[New Thread 0x7fff9ecf1700 (LWP 9655)]
[New Thread 0x7fff9ebef700 (LWP 9656)]
[New Thread 0x7fff9eaed700 (LWP 9657)]
[New Thread 0x7fff9e9eb700 (LWP 9658)]
[New Thread 0x7fff9e8e9700 (LWP 9659)]
[New Thread 0x7fff9e7e7700 (LWP 9660)]
[New Thread 0x7fff9e6e5700 (LWP 9661)]
[New Thread 0x7fff9e5e3700 (LWP 9662)]
[New Thread 0x7fff9e4e1700 (LWP 9663)]
[New Thread 0x7fff9e3df700 (LWP 9664)]
[New Thread 0x7fff9e2dd700 (LWP 9665)]
[New Thread 0x7fff9d4ce700 (LWP 9666)]
[New Thread 0x7fff9d3cc700 (LWP 9667)]
[New Thread 0x7fff9d2ca700 (LWP 9668)]
[New Thread 0x7fff9d1c8700 (LWP 9669)]
[New Thread 0x7fff9d0c6700 (LWP 9670)]
[New Thread 0x7fff9cfc4700 (LWP 9671)]
[New Thread 0x7fff9cec2700 (LWP 9672)]
[New Thread 0x7fff9cdc0700 (LWP 9673)]
[New Thread 0x7fff9ccbe700 (LWP 9674)]
[New Thread 0x7fff9cbbc700 (LWP 9675)]
[New Thread 0x7fff9caba700 (LWP 9676)]
[New Thread 0x7fff9c9b8700 (LWP 9677)]
[New Thread 0x7fff9c8b6700 (LWP 9678)]
[New Thread 0x7fff9c7b4700 (LWP 9679)]
[New Thread 0x7fff2a339700 (LWP 9680)]
[New Thread 0x7fff2a237700 (LWP 9681)]
[New Thread 0x7fff2a135700 (LWP 9682)]
[New Thread 0x7fff2a033700 (LWP 9683)]
[New Thread 0x7fff289ae700 (LWP 9684)]
[New Thread 0x7fff288ac700 (LWP 9685)]
[New Thread 0x7fff287ab700 (LWP 9686)]
[New Thread 0x7fff286aa700 (LWP 9687)]
[New Thread 0x7fff285a9700 (LWP 9688)]
[New Thread 0x7fff284a8700 (LWP 9689)]
[New Thread 0x7fff283a7700 (LWP 9690)]
[New Thread 0x7fff282a6700 (LWP 9691)]
[New Thread 0x7fff281a5700 (LWP 9692)]
[New Thread 0x7fff19fff700 (LWP 9693)]
[New Thread 0x7fff19efe700 (LWP 9694)]
[New Thread 0x7fff19dfd700 (LWP 9695)]
[New Thread 0x7fff19cfc700 (LWP 9696)]
[New Thread 0x7fff19bfb700 (LWP 9697)]
[New Thread 0x7fff19afa700 (LWP 9698)]
[New Thread 0x7fff199f9700 (LWP 9699)]
[New Thread 0x7fff198f8700 (LWP 9700)]
[New Thread 0x7fff193cd700 (LWP 9701)]
[New Thread 0x7fff192cc700 (LWP 9702)]
[New Thread 0x7fff191cb700 (LWP 9703)]
octave:2> imwrite(zeros(1000), "foo.png");
[New Thread 0x7ffec7675700 (LWP 9704)]
[New Thread 0x7ffec6e74700 (LWP 9705)]
[New Thread 0x7ffec6673700 (LWP 9706)]
[New Thread 0x7ffec5e72700 (LWP 9707)]
[New Thread 0x7ffec5671700 (LWP 9708)]
[New Thread 0x7ffec4e70700 (LWP 9709)]
[New Thread 0x7ffebffff700 (LWP 9710)]
[New Thread 0x7ffebf7fe700 (LWP 9711)]
[New Thread 0x7ffebeffd700 (LWP 9712)]
[New Thread 0x7ffebe7fc700 (LWP 9713)]
[New Thread 0x7ffebdffb700 (LWP 9714)]
[New Thread 0x7ffebd7fa700 (LWP 9715)]
[New Thread 0x7ffebcff9700 (LWP 9716)]
[New Thread 0x7ffebc7f8700 (LWP 9717)]
[New Thread 0x7ffebbff7700 (LWP 9718)]
octave:3> graph = javaObject("Baz");
octave:4> graph.addNodes(1:1000000);

Thread 1 "octave-cli" received signal SIGSEGV, Segmentation fault.
0x00007fffa6c706da in ?? ()
(gdb)



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