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[Octave-bug-tracker] [bug #55046] Crash with trivial script on dev


From: Dmitri A. Sergatskov
Subject: [Octave-bug-tracker] [bug #55046] Crash with trivial script on dev
Date: Mon, 19 Nov 2018 13:06:48 -0500 (EST)
User-agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:63.0) Gecko/20100101 Firefox/63.0

Follow-up Comment #3, bug #55046 (project octave):

I got s segfault:


start_crash
warning: load_path: folder1: No such file or directory
warning: called from
    somefunc at line 2 column 3
    start_crash at line 2 column 1
fatal: caught signal Segmentation fault -- stopping myself...
Segmentation fault (core dumped)


I got the following trace in the logs:


 Process 27878 (lt-octave-gui) of user 1001 dumped core.
                                                   
                                                   Stack trace of thread
28012:
                                                   #0  0x00007fd9c979fc4a
__GI___strlen_sse2 (libc.so.6)
                                                   #1  0x00007fd9c9755844
printf_positional (libc.so.6)
                                                   #2  0x00007fd9c9756796
vfprintf (libc.so.6)
                                                   #3  0x00007fd9c977f87d
vasprintf (libc.so.6)
                                                   #4  0x00007fd9d0a8f0e8
_ZN6octave9vasprintfB5cxx11EPKcP13__va_list_tag (liboctinterp.so.6)
                                                   #5  0x00007fd9d0a8f154
_ZN6octave7vformatERSoPKcP13__va_list_tag (liboctinterp.so.6)
                                                   #6  0x00007fd9d07493c2
vwarning (liboctinterp.so.6)
                                                   #7  0x00007fd9d074c1a6
warning_1 (liboctinterp.so.6)
                                                   #8  0x00007fd9d074c6ec
_Z7warningPKcz (liboctinterp.so.6)
                                                   #9  0x00007fd9d090756c
_ZNK6octave9load_path6updateEv (liboctinterp.so.6)
                                                   #10 0x00007fd9d073158c
octave_change_to_directory (liboctinterp.so.6)
                                                   #11 0x00007fd9d0731b25
_Z3FcdRK17octave_value_listi (liboctinterp.so.6)
                                                   #12 0x00007fd9d049ab00
_ZN14octave_builtin4callERN6octave14tree_evaluatorEiRK17octave_value_list
(liboctinterp.so.6)
                                                   #13 0x00007fd9d061de5e
_ZN6octave14tree_evaluator22visit_index_expressionERNS_21tree_index_expressionE
(liboctinterp.so.6)
                                                   #14 0x00007fd9d04dafee
_ZN6octave14tree_evaluator8evaluateEPNS_15tree_expressionEi
(liboctinterp.so.6)
                                                   #15 0x00007fd9d0619769
_ZN6octave14tree_evaluator15visit_statementERNS_14tree_statementE
(liboctinterp.so.6)
                                                   #16 0x00007fd9d060fd00
_ZN6octave14tree_statement6acceptERNS_11tree_walkerE (liboctinterp.so.6)
                                                   #17 0x00007fd9d061aacb
_ZN6octave19tree_statement_list6acceptERNS_11tree_walkerE (liboctinterp.so.6)
                                                   #18 0x00007fd9d056b772
_ZN20octave_user_function4callERN6octave14tree_evaluatorEiRK17octave_value_list
(liboctinterp.so.6)
                                                   #19 0x00007fd9d061de5e
_ZN6octave14tree_evaluator22visit_index_expressionERNS_21tree_index_expressionE
(liboctinterp.so.6)
                                                   #20 0x00007fd9d04dafee
_ZN6octave14tree_evaluator8evaluateEPNS_15tree_expressionEi
(liboctinterp.so.6)
                                                   #21 0x00007fd9d0619769
_ZN6octave14tree_evaluator15visit_statementERNS_14tree_statementE
(liboctinterp.so.6)
                                                   #22 0x00007fd9d060fd00
_ZN6octave14tree_statement6acceptERNS_11tree_walkerE (liboctinterp.so.6)
                                                   #23 0x00007fd9d0613bdd
_ZN6octave19tree_statement_list6acceptERNS_11tree_walkerE (liboctinterp.so.6)
                                                   #24 0x00007fd9d056b712
_ZN18octave_user_script4callERN6octave14tree_evaluatorEiRK17octave_value_list
(liboctinterp.so.6)
                                                   #25 0x00007fd9d0612e71
_ZN6octave14tree_evaluator16visit_identifierERNS_15tree_identifierE
(liboctinterp.so.6)
                                                   #26 0x00007fd9d04dafee
_ZN6octave14tree_evaluator8evaluateEPNS_15tree_expressionEi
(liboctinterp.so.6)
                                                   #27 0x00007fd9d0619769
_ZN6octave14tree_evaluator15visit_statementERNS_14tree_statementE
(liboctinterp.so.6)
                                                   #28 0x00007fd9d060fd00
_ZN6octave14tree_statement6acceptERNS_11tree_walkerE (liboctinterp.so.6)
                                                   #29 0x00007fd9d0612a4b
_ZN6octave19tree_statement_list6acceptERNS_11tree_walkerE (liboctinterp.so.6)
                                                   #30 0x00007fd9d08f468a
_ZN6octave11interpreter7executeEv (liboctinterp.so.6)
                                                   #31 0x00007fd9d0f28310
_ZN6octave18octave_interpreter7executeEv (liboctgui.so.4)
                                                   #32 0x00007fd9ceb5e0f6
_ZN7QObject5eventEP6QEvent (libQt5Core.so.5)
                                                   #33 0x00007fd9cf4b22a5
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent
(libQt5Widgets.so.5)
                                                   #34 0x00007fd9cf4b99c0
_ZN12QApplication6notifyEP7QObjectP6QEvent (libQt5Widgets.so.5)
                                                   #35 0x00007fd9ceb35236
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5)
                                                   #36 0x00007fd9ceb3840b
_ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData
(libQt5Core.so.5)
                                                   #37 0x00007fd9ceb85a87 n/a
(libQt5Core.so.5)
                                                   #38 0x00007fd9c727426d
g_main_context_dispatch (libglib-2.0.so.0)
                                                   #39 0x00007fd9c7274638 n/a
(libglib-2.0.so.0)
                                                   #40 0x00007fd9c72746d0
g_main_context_iteration (libglib-2.0.so.0)
                                                   #41 0x00007fd9ceb85813
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5)
                                                   #42 0x00007fd9ceb3417b
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
                                                   #43 0x00007fd9ce99c046
_ZN7QThread4execEv (libQt5Core.so.5)
                                                   #44 0x00007fd9ce9a54bb n/a
(libQt5Core.so.5)
                                                   #45 0x00007fd9c98d358e
start_thread (libpthread.so.0)
                                                   #46 0x00007fd9c9802593
__clone (libc.so.6)
                                                   
                                                   Stack trace of thread
28006:
                                                   #0  0x00007fd9c97f7371
__poll (libc.so.6)
                                                   #1  0x00007fd9c72745a6 n/a
(libglib-2.0.so.0)
                                                   #2  0x00007fd9c72746d0
g_main_context_iteration (libglib-2.0.so.0)
                                                   #3  0x00007fd9c7274721 n/a
(libglib-2.0.so.0)
                                                   #4  0x00007fd9c729d48a n/a
(libglib-2.0.so.0)
                                                   #5  0x00007fd9c98d358e
start_thread (libpthread.so.0)
                                                   #6  0x00007fd9c9802593
__clone (libc.so.6)
                                                   
                                                   Stack trace of thread
28007:
                                                   #0  0x00007fd9c97f7371
__poll (libc.so.6)
                                                   #1  0x00007fd9c72745a6 n/a
(libglib-2.0.so.0)
                                                   #2  0x00007fd9c72746d0
g_main_context_iteration (libglib-2.0.so.0)
                                                   #3  0x00007fd9b51ebc7d n/a
(libdconfsettings.so)
                                                   #4  0x00007fd9c729d48a n/a
(libglib-2.0.so.0)
                                                   #5  0x00007fd9c98d358e
start_thread (libpthread.so.0)
                                                   #6  0x00007fd9c9802593
__clone (libc.so.6)
                                                   
                                                   Stack trace of thread
27878:
                                                   #0  0x00007fd9c97f7371
__poll (libc.so.6)
                                                   #1  0x00007fd9c72745a6 n/a
(libglib-2.0.so.0)
                                                   #2  0x00007fd9c72746d0
g_main_context_iteration (libglib-2.0.so.0)
                                                   #3  0x00007fd9ceb85813
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5)
                                                   #4  0x00007fd9b6c47f15 n/a
(libQt5XcbQpa.so.5)
                                                   #5  0x00007fd9ceb3417b
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
                                                   #6  0x00007fd9ceb3c246
_ZN16QCoreApplication4execEv (libQt5Core.so.5)
                                                   #7  0x00007fd9d0f36b79
_ZN6octave15gui_application7executeEv (liboctgui.so.4)
                                                   #8  0x0000000000402379 main
(lt-octave-gui)
                                                   #9  0x00007fd9c9729413
__libc_start_main (libc.so.6)
                                                   #10 0x000000000040263e
_start (lt-octave-gui)
                                                   
                                                   Stack trace of thread
28005:
                                                   #0  0x00007fd9c97f7371
__poll (libc.so.6)
                                                   #1  0x00007fd9c6fe139f n/a
(libxcb.so.1)
                                                   #2  0x00007fd9c6fe301a
xcb_wait_for_event (libxcb.so.1)
                                                   #3  0x00007fd9b6bb4da9 n/a
(libQt5XcbQpa.so.5)
                                                   #4  0x00007fd9ce9a54bb n/a
(libQt5Core.so.5)
                                                   #5  0x00007fd9c98d358e
start_thread (libpthread.so.0)
                                                   #6  0x00007fd9c9802593
__clone (libc.so.6)
                                                   
                                                   Stack trace of thread
28013:
                                                   #0  0x00007fd9c973e30c
__sigtimedwait (libc.so.6)
                                                   #1  0x00007fd9c98ddafc
sigwait (libpthread.so.0)
                                                   #2  0x00007fd9ce2c35a2
signal_watcher (liboctave.so.6)
                                                   #3  0x00007fd9c98d358e
start_thread (libpthread.so.0)
                                                   #4  0x00007fd9c9802593
__clone (libc.so.6)
                                                   
                                                   Stack trace of thread
28010:
                                                   #0  0x00007fd9c97f7371
__poll (libc.so.6)
                                                   #1  0x00007fd9c72745a6 n/a
(libglib-2.0.so.0)
                                                   #2  0x00007fd9c72746d0
g_main_context_iteration (libglib-2.0.so.0)
                                                   #3  0x00007fd9ceb85813
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5)
                                                   #4  0x00007fd9ceb3417b
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
                                                   #5  0x00007fd9ce99c046
_ZN7QThread4execEv (libQt5Core.so.5)
                                                   #6  0x00007fd9b6aedf89 n/a
(libQt5DBus.so.5)
                                                   #7  0x00007fd9ce9a54bb n/a
(libQt5Core.so.5)
                                                   #8  0x00007fd9c98d358e
start_thread (libpthread.so.0)
                                                   #9  0x00007fd9c9802593
__clone (libc.so.6)
                                                   
                                                   Stack trace of thread
28009:
                                                   #0  0x00007fd9c97f7371
__poll (libc.so.6)
                                                   #1  0x00007fd9c72745a6 n/a
(libglib-2.0.so.0)
                                                   #2  0x00007fd9c7274962
g_main_loop_run (libglib-2.0.so.0)
                                                   #3  0x00007fd9b55fd79a n/a
(libgio-2.0.so.0)
                                                   #4  0x00007fd9c729d48a n/a
(libglib-2.0.so.0)
                                                   #5  0x00007fd9c98d358e
start_thread (libpthread.so.0)
                                                   #6  0x00007fd9c9802593
__clone (libc.so.6)





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