Application: cantor (20.12.1)

Qt Version: 5.15.2
Frameworks Version: 5.78.0
Operating System: Linux 5.4.0-62-generic x86_64
Windowing system: X11
Distribution: KDE neon User Edition 5.20

-- Information about the crash:
- What I was doing when the application crashed:

AL iniciar el programa no hay problema, el incoveniente es cuando se selecciona el motor (Qalculate) el programa se cierra y muestra error

The crash can be reproduced every time.

-- Backtrace:
Application: Cantor (cantor), signal: Segmentation fault

[New LWP 8746]
[New LWP 8747]
[New LWP 8748]
[New LWP 8749]
[New LWP 8750]
[New LWP 8751]
[New LWP 8756]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f31c789eaff in __GI___poll (fds=0x7ffd970d9c68, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f31c13d4ac0 (LWP 8745))]

Thread 8 (Thread 0x7f31abfff700 (LWP 8756)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560f44880574) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x560f44880520, cond=0x560f44880548) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x560f44880548, mutex=0x560f44880520) at pthread_cond_wait.c:638
#3  0x00007f31c7c4cd1b in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f31c8b3cdca in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#5  0x00007f31c7c46bac in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f31c65d2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f31c78ab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f31b2ffd700 (LWP 8751)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560f44711518) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x560f447114c8, cond=0x560f447114f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x560f447114f0, mutex=0x560f447114c8) at pthread_cond_wait.c:638
#3  0x00007f31b8de2e6b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f31b8de2a6b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f31c65d2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f31c78ab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f31aaffd700 (LWP 8750)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560f44711518) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x560f447114c8, cond=0x560f447114f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x560f447114f0, mutex=0x560f447114c8) at pthread_cond_wait.c:638
#3  0x00007f31b8de2e6b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f31b8de2a6b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f31c65d2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f31c78ab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f31b37fe700 (LWP 8749)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560f44711518) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x560f447114c8, cond=0x560f447114f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x560f447114f0, mutex=0x560f447114c8) at pthread_cond_wait.c:638
#3  0x00007f31b8de2e6b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f31b8de2a6b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f31c65d2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f31c78ab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f31b3fff700 (LWP 8748)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560f44711518) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x560f447114c8, cond=0x560f447114f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x560f447114f0, mutex=0x560f447114c8) at pthread_cond_wait.c:638
#3  0x00007f31b8de2e6b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f31b8de2a6b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f31c65d2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f31c78ab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f31bb017700 (LWP 8747)):
#0  0x00007f31c789eaff in __GI___poll (fds=0x7f31b4004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f31c5b7d1ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31c5b7d2e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31c7e86fbb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f31c7e2b1ab in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f31c7c45a12 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f31c680df4b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f31c7c46bac in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f31c65d2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f31c78ab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f31c080d700 (LWP 8746)):
#0  0x00007f31c789eaff in __GI___poll (fds=0x7f31c080c9e8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f31c43bbc1a in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f31c43bd90a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f31c0d45d58 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f31c7c46bac in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f31c65d2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f31c78ab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f31c13d4ac0 (LWP 8745)):
[KCrash Handler]
#4  __memmove_sse2_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:312
#5  0x00007f31c5935ca9 in StitchingFunction::StitchingFunction(StitchingFunction const*) () from /lib/x86_64-linux-gnu/libpoppler.so.97
#6  0x00007f31c593bd06 in StitchingFunction::copy() const () from /lib/x86_64-linux-gnu/libpoppler.so.97
#7  0x00007f31b04ae3c4 in MathFunction::setArgumentDefinition(unsigned long, Argument*) () from /lib/x86_64-linux-gnu/libqalculate.so.20
#8  0x00007f31b064d593 in IdentityFunction::IdentityFunction() () from /lib/x86_64-linux-gnu/libqalculate.so.20
#9  0x00007f31b04c14a0 in Calculator::addBuiltinFunctions() () from /lib/x86_64-linux-gnu/libqalculate.so.20
#10 0x00007f31b04d02b7 in Calculator::Calculator() () from /lib/x86_64-linux-gnu/libqalculate.so.20
#11 0x00007f31b076b6ed in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/cantor/backends/cantor_qalculatebackend.so
#12 0x00007f31b07620e6 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/cantor/backends/cantor_qalculatebackend.so
#13 0x00007f31aa6ffaf1 in Worksheet::initSession (this=0x560f448c76b0, backend=<optimized out>) at ./src/worksheet.cpp:1570
#14 0x00007f31aa701c19 in Worksheet::Worksheet (this=0x560f448c76b0, backend=0x560f447e96e0, parent=<optimized out>, useDeafultWorksheetParameters=<optimized out>) at ./src/worksheet.cpp:109
#15 0x00007f31aa6ed5f0 in CantorPart::CantorPart (this=0x560f44d2c220, parentWidget=0x560f44781db0, parent=<optimized out>, args=..., __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ./src/cantor_part.cpp:143
#16 0x00007f31aa6f3d46 in KPluginFactory::createPartInstance<CantorPart> (parentWidget=0x560f44781db0, parent=0x560f44781db0, args=...) at /usr/include/KF5/KCoreAddons/kpluginfactory.h:703
#17 0x00007f31c8ef1162 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () from /lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#18 0x0000560f435277f7 in KPluginFactory::create<KParts::ReadWritePart> (args=..., parent=0x560f44781db0, this=0x560f44d33760) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:153
#19 CantorShell::addWorksheet (this=0x560f4464ce70, backendName=...) at ./src/cantor.cpp:364
#20 0x0000560f43528d82 in CantorShell::addWorksheet (this=0x560f4464ce70) at ./src/cantor.cpp:286
#21 0x0000560f4351efe5 in main (argc=<optimized out>, argv=<optimized out>) at ./src/main.cpp:127
[Inferior 1 (process 8745) detached]

Possible duplicates by query: bug 415302, bug 414541.

Reported using DrKonqi