[Octave-bug-tracker] [bug #55254] clear all crashes when variable from oct file class is displayed in workspace

[John Donoghue]

URL:
  <https://savannah.gnu.org/bugs/?55254>

                 Summary: clear all crashes when variable from oct file class
is displayed in workspace
                 Project: GNU Octave
            Submitted by: lostbard
            Submitted on: Thu 20 Dec 2018 01:24:24 PM UTC
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Segfault, Bus Error, etc.
                  Status: None
             Assigned to: None
         Originator Name: JohnD
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Microsoft Windows

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Details:

It doesn't appear to be limited just to audioreorder/player, but is an easy
example to do.

Currently only checked in windows

Example:


> ar = audiorecorder


** The ar value is displayed in the workspace window.

> clear all

** crash occurs:

#0  0x000000000ebab594 in octave_value::~octave_value (this=0x4e087dc8,
__in_chrg=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/libinterp/octave-value/ov.h:325
#1  Array<octave_value>::ArrayRep::~ArrayRep (this=0x4e087b80,
__in_chrg=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/liboctave/array/Array.h:172
#2  Array<octave_value>::~Array (this=0x4959c4c0, __in_chrg=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/liboctave/array/Array.h:308
#3  Cell::~Cell (this=0x4959c4c0, __in_chrg=<optimized out>) at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/libinterp/corefcn/Cell.h:39
#4  0x000000000eb54029 in std::_Destroy<Cell> (__pointer=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/stl_construct.h:98
#5  std::_Destroy_aux<false>::__destroy<Cell*> (__last=<optimized out>,
__first=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/stl_construct.h:108
#6  std::_Destroy<Cell*> (__last=<optimized out>, __first=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/stl_construct.h:137
#7  std::_Destroy<Cell*, Cell> (__last=<optimized out>, __first=<optimized
out>)
    at
/home/johnd/mxe-octave/build-64/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/stl_construct.h:206
#8  std::vector<Cell, std::allocator<Cell> >::~vector (this=0x4c4728a8,
__in_chrg=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/stl_vector.h:434
#9  octave_map::~octave_map (this=0x4c4728a0, __in_chrg=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/libinterp/corefcn/oct-map.h:271
#10 0x000000000eb595a7 in octave_class::~octave_class (this=0x4c472890,
__in_chrg=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/libinterp/octave-value/ov-class.h:73
#11 octave_class::~octave_class (this=0x4c472890, __in_chrg=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/libinterp/octave-value/ov-class.h:73
#12 0x00000000685a381f in octave_value::~octave_value (this=0x4e06ff70,
__in_chrg=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/libinterp/octave-value/ov.h:325
#13 octave::symbol_info::~symbol_info (this=0x4e06ff50, __in_chrg=<optimized
out>)
    at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/libinterp/corefcn/syminfo.h:50
#14 __gnu_cxx::new_allocator<std::_List_node<octave::symbol_info>
>::destroy<octave::symbol_info> (this=<optimized out>, __p=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/ext/new_allocator.h:140
#15 std::allocator_traits<std::allocator<std::_List_node<octave::symbol_info>
> >::destroy<octave::symbol_info> (__a=..., __p=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/alloc_traits.h:487
#16 std::__cxx11::list<octave::symbol_info,
std::allocator<octave::symbol_info> >::_M_erase (__position=...,
this=0x477f35e0)
    at
/home/johnd/mxe-octave/build-64/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/stl_list.h:1815
#17 std::__cxx11::list<octave::symbol_info,
std::allocator<octave::symbol_info> >::erase (__position=...,
this=0x477f35e0)
    at
/home/johnd/mxe-octave/build-64/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/list.tcc:157
#18 std::__cxx11::list<octave::symbol_info,
std::allocator<octave::symbol_info> >::erase (__last=..., __first=...,
this=<optimized out>)
    at
/home/johnd/mxe-octave/build-64/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/stl_list.h:1368
#19 std::__cxx11::list<octave::symbol_info,
std::allocator<octave::symbol_info>
>::_M_assign_dispatch<std::_List_const_iterator<octave::symbol_info> > (
    address@hidden, __first2=..., address@hidden, __last2=...,
address@hidden)
    at
/home/johnd/mxe-octave/build-64/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/list.tcc:317
#20 0x000000006854cc36 in std::__cxx11::list<octave::symbol_info,
std::allocator<octave::symbol_info> >::operator= (__x=..., this=<optimized
out>)
    at
/home/johnd/mxe-octave/build-64/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/list.tcc:285
#21 octave::base_list<octave::symbol_info>::operator= (bl=..., this=<optimized
out>)
    at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/liboctave/util/base-list.h:36
#22 octave::symbol_info_list::operator= (this=<optimized out>) at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/libinterp/corefcn/syminfo.h:89
#23 octave::workspace_model::clear_data (address@hidden)
    at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/libgui/src/workspace-model.cc:277
#24 0x000000006854dc94 in octave::workspace_model::set_workspace
(this=0x477f35c0, top_level=<optimized out>, syminfo=...)
    at
/home/johnd/mxe-octave/build-64/tmp-default-octave/octave-5.0.0/libgui/src/workspace-model.cc:238



If I cleared that variable (even if there are others in the work space) before
doing the clear all, it doesn't crash.

It also crashes if run as

> clear -c

It did not crash in 4.4.1




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