[Octave-bug-tracker] [bug #53704] Segfault in Octave

[Melvin Robinson]

URL:
  <http://savannah.gnu.org/bugs/?53704>

                 Summary: Segfault in Octave
                 Project: GNU Octave
            Submitted by: melrobin
            Submitted on: Fri 20 Apr 2018 01:07:58 AM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Segfault, Bus Error, etc.
                  Status: None
             Assigned to: None
         Originator Name: Melvin Robinson
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

While troubleshooting a problem with building Octave which I have narrowed
down to build of documentation I came across a segfault when running the
latest development version.  The gdb session is shown below.  This does not
seem like a valid value for slice_len, but other elements such as rep may be
corrupted.  The same sort of error in Array.h occurs when building the
documentation as well.

Starting program:
/usr/local/libexec/octave/5.0.0/exec/x86_64-pc-linux-gnu/octave-gui
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7fffd6acc700 (LWP 27020)]
[New Thread 0x7fffd5c9f700 (LWP 27021)]
[New Thread 0x7fffd549e700 (LWP 27022)]
[New Thread 0x7fffd4b9b700 (LWP 27023)]
GNU Octave, version 5.0.0
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 https://www.octave.org.

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

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

octave:1> quit
[Thread 0x7fffd5c9f700 (LWP 27021) exited]
[Thread 0x7fffd6acc700 (LWP 27020) exited]
[Thread 0x7fffd549e700 (LWP 27022) exited]

Thread 1 "octave-gui" received signal SIGSEGV, Segmentation fault.
Array<int>::~Array (
    this=0x7fffec1655e0
<lucene::index::SegmentTermPositionVector::EMPTY_TERM_POS>,
__in_chrg=<optimized out>) at ./liboctave/array/Array.h:307
307         if (--rep->count == 0)
(gdb) p *this
$2 = {_vptr.Array = 0x7ffff7826938 <vtable for Array<int>+16>, dimensions = {
    rep = 0x1}, rep = 0x0, slice_data = 0x0, slice_len = 140737154241192}





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