Bug 405914

Application: plasmashell (5.15.3)

Qt Version: 5.12.0
Frameworks Version: 5.56.0
Operating System: Linux 4.18.0-16-generic x86_64
Distribution: KDE neon User Edition 5.15

-- Information about the crash:
I was using Dolphin to move ~/Desktop/xxx/yyy into ~/Desktop/yyy, dragging the former from a Dolphin window onto the desktop itself, where the folder yyy already existed.  It displayed the usual dialog asking what I wanted to do to resolve the folder name conflict, and I told it to write into, then skip overwriting of the files within, with the apply to all checkbox checked.  Plasma immediately crashed and restarted when that process started.

The move was not successful.

This actually happens every time, superseding what I selected in the previous dialog.

Doing the same from a split Dolphin window, with one pane being the desktop, works as intended.

My ~/Desktop is actually a symlink to a LUKS encrypted volume, which might be relevant here (almost certainly is).  Plasma is a little uncertain about how to handle that... initially, it showed ~ on the desktop even though I had it set to the "Desktop folder" radio button in the Desktop Settings dialog, indicating it was not following the symlink.  When I changed it to Places panel item/Desktop, it began working as intended.  The "official" shell folder desktop location is still ~/Desktop, not the actual canonical location of the desktop.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f12d7907880 (LWP 6894))]

Thread 11 (Thread 0x7f12537fe700 (LWP 9025)):
#0  0x00007f12cdf689f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55faba96dfb4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55faba96df60, cond=0x55faba96df88) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55faba96df88, mutex=0x55faba96df60) at pthread_cond_wait.c:655
#3  0x00007f12d1454b4b in QWaitConditionPrivate::wait (deadline=..., this=0x55faba96df60) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55faba965d80, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f12d1454e59 in QWaitCondition::wait (this=this@entry=0x55faba965d88, mutex=mutex@entry=0x55faba965d80, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f12d578eda8 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55faba965d78) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55faba965d00) at scenegraph/qsgthreadedrenderloop.cpp:709
#8  0x00007f12d578f1da in QSGRenderThread::run (this=0x55faba965d00) at scenegraph/qsgthreadedrenderloop.cpp:738
#9  0x00007f12d144dbc2 in QThreadPrivate::start (arg=0x55faba965d00) at thread/qthread_unix.cpp:361
#10 0x00007f12cdf626db in start_thread (arg=0x7f12537fe700) at pthread_create.c:463
#11 0x00007f12d0d4d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f1253fff700 (LWP 8950)):
#0  0x00007f12cdf689f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55fab60847b0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55fab6084760, cond=0x55fab6084788) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55fab6084788, mutex=0x55fab6084760) at pthread_cond_wait.c:655
#3  0x00007f12d1454b4b in QWaitConditionPrivate::wait (deadline=..., this=0x55fab6084760) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55fab8c89810, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f12d1454e59 in QWaitCondition::wait (this=this@entry=0x55fab8c89818, mutex=mutex@entry=0x55fab8c89810, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f12d578eda8 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55fab8c89808) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55fab8c89790) at scenegraph/qsgthreadedrenderloop.cpp:709
#8  0x00007f12d578f1da in QSGRenderThread::run (this=0x55fab8c89790) at scenegraph/qsgthreadedrenderloop.cpp:738
#9  0x00007f12d144dbc2 in QThreadPrivate::start (arg=0x55fab8c89790) at thread/qthread_unix.cpp:361
#10 0x00007f12cdf626db in start_thread (arg=0x7f1253fff700) at pthread_create.c:463
#11 0x00007f12d0d4d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f127d050700 (LWP 8949)):
#0  0x00007f12d0d40bf9 in __GI___poll (fds=0x7f1260001680, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f1298c58481 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f1298c49e40 in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f1298c4a4d0 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f1298c4a560 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f1298c583c9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f12987f5318 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007f12cdf626db in start_thread (arg=0x7f127d050700) at pthread_create.c:463
#8  0x00007f12d0d4d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f127defe700 (LWP 6926)):
#0  0x00007f12cdf689f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55fab7f21410) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55fab7f213c0, cond=0x55fab7f213e8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55fab7f213e8, mutex=0x55fab7f213c0) at pthread_cond_wait.c:655
#3  0x00007f12d1454b4b in QWaitConditionPrivate::wait (deadline=..., this=0x55fab7f213c0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55fab837f910, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f12d1454e59 in QWaitCondition::wait (this=this@entry=0x55fab837f918, mutex=mutex@entry=0x55fab837f910, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f12d578eda8 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55fab837f908) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55fab837f890) at scenegraph/qsgthreadedrenderloop.cpp:709
#8  0x00007f12d578f1da in QSGRenderThread::run (this=0x55fab837f890) at scenegraph/qsgthreadedrenderloop.cpp:738
#9  0x00007f12d144dbc2 in QThreadPrivate::start (arg=0x55fab837f890) at thread/qthread_unix.cpp:361
#10 0x00007f12cdf626db in start_thread (arg=0x7f127defe700) at pthread_create.c:463
#11 0x00007f12d0d4d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f12851d6700 (LWP 6910)):
#0  0x00007f12d0d40bf9 in __GI___poll (fds=0x7f12851d5690, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f12aaef8575 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#2  0x00007f12a9ea3a54 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.415.27
#3  0x00007f12a9dbb04e in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.415.27
#4  0x00007f12aaeee8d4 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#5  0x00007f12ab3a7ba2 in QGLXContext::swapBuffers (this=0x55fab7ddf760, surface=0x55fab6ccaf40) at qglxintegration.cpp:615
#6  0x00007f12d1c2d20f in QOpenGLContext::swapBuffers (this=0x55fab6c8e170, surface=<optimized out>) at kernel/qopenglcontext.cpp:1115
#7  0x00007f12d578b589 in QSGRenderThread::syncAndRender (this=this@entry=0x55fab7d308d0) at scenegraph/qsgthreadedrenderloop.cpp:651
#8  0x00007f12d578f198 in QSGRenderThread::run (this=0x55fab7d308d0) at scenegraph/qsgthreadedrenderloop.cpp:729
#9  0x00007f12d144dbc2 in QThreadPrivate::start (arg=0x55fab7d308d0) at thread/qthread_unix.cpp:361
#10 0x00007f12cdf626db in start_thread (arg=0x7f12851d6700) at pthread_create.c:463
#11 0x00007f12d0d4d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f128817b700 (LWP 6907)):
#0  0x00007f12cabee064 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f12caba7f49 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f12caba84e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12caba864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f12d168315b in QEventDispatcherGlib::processEvents (this=0x7f1280000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f12d162464a in QEventLoop::exec (this=this@entry=0x7f128817ace0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f12d144c41a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#7  0x00007f128aad8f77 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007f12d144dbc2 in QThreadPrivate::start (arg=0x55fab7b74580) at thread/qthread_unix.cpp:361
#9  0x00007f12cdf626db in start_thread (arg=0x7f128817b700) at pthread_create.c:463
#10 0x00007f12d0d4d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f12a1a8b700 (LWP 6903)):
#0  0x00007f12cdf689f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55fab6bf47f0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55fab6bf47a0, cond=0x55fab6bf47c8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55fab6bf47c8, mutex=0x55fab6bf47a0) at pthread_cond_wait.c:655
#3  0x00007f12d1454b4b in QWaitConditionPrivate::wait (deadline=..., this=0x55fab6bf47a0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55fab6357e20, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f12d1454e59 in QWaitCondition::wait (this=this@entry=0x55fab6357e28, mutex=mutex@entry=0x55fab6357e20, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f12d578eda8 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55fab6357e18) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55fab6357da0) at scenegraph/qsgthreadedrenderloop.cpp:709
#8  0x00007f12d578f1da in QSGRenderThread::run (this=0x55fab6357da0) at scenegraph/qsgthreadedrenderloop.cpp:738
#9  0x00007f12d144dbc2 in QThreadPrivate::start (arg=0x55fab6357da0) at thread/qthread_unix.cpp:361
#10 0x00007f12cdf626db in start_thread (arg=0x7f12a1a8b700) at pthread_create.c:463
#11 0x00007f12d0d4d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f12a2b57700 (LWP 6899)):
#0  0x00007f12d0d3c0b4 in __GI___libc_read (fd=37, buf=0x7f12a2b56aa0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f12cabeccd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f12caba8027 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12caba84e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f12caba864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f12d168315b in QEventDispatcherGlib::processEvents (this=0x7f129c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f12d162464a in QEventLoop::exec (this=this@entry=0x7f12a2b56cb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f12d144c41a in QThread::exec (this=this@entry=0x55fab6b90900) at thread/qthread.cpp:531
#8  0x00007f12d57091c6 in QQuickPixmapReader::run (this=0x55fab6b90900) at util/qquickpixmapcache.cpp:949
#9  0x00007f12d144dbc2 in QThreadPrivate::start (arg=0x55fab6b90900) at thread/qthread_unix.cpp:361
#10 0x00007f12cdf626db in start_thread (arg=0x7f12a2b57700) at pthread_create.c:463
#11 0x00007f12d0d4d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f12b2dbc700 (LWP 6897)):
#0  0x00007f12d0d3c0b4 in __GI___libc_read (fd=11, buf=0x7f12b2dbbaf0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f12cabeccd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f12caba8027 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12caba84e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f12caba864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f12d168315b in QEventDispatcherGlib::processEvents (this=0x7f12ac000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f12d162464a in QEventLoop::exec (this=this@entry=0x7f12b2dbbd00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f12d144c41a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#8  0x00007f12d52442e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f12d144dbc2 in QThreadPrivate::start (arg=0x55fab61161e0) at thread/qthread_unix.cpp:361
#10 0x00007f12cdf626db in start_thread (arg=0x7f12b2dbc700) at pthread_create.c:463
#11 0x00007f12d0d4d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f12b8943700 (LWP 6896)):
#0  0x00007f12caba7a5c in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f12caba846b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f12caba864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12d168315b in QEventDispatcherGlib::processEvents (this=0x7f12b4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f12d162464a in QEventLoop::exec (this=this@entry=0x7f12b8942cf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f12d144c41a in QThread::exec (this=this@entry=0x7f12d29a1d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:531
#6  0x00007f12d272a015 in QDBusConnectionManager::run (this=0x7f12d29a1d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#7  0x00007f12d144dbc2 in QThreadPrivate::start (arg=0x7f12d29a1d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:361
#8  0x00007f12cdf626db in start_thread (arg=0x7f12b8943700) at pthread_create.c:463
#9  0x00007f12d0d4d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f12d7907880 (LWP 6894)):
[KCrash Handler]
#6  0x00007f12ca01d5e4 in KIO::CopyJobPrivate::copyNextFile (this=this@entry=0x55fab60af050) at ./src/core/copyjob.cpp:1614
#7  0x00007f12ca021a56 in KIO::CopyJobPrivate::slotResultCopyingFiles (this=this@entry=0x55fab60af050, job=job@entry=0x55fab608f070) at ./src/core/copyjob.cpp:1391
#8  0x00007f12ca023b3b in KIO::CopyJob::slotResult (this=0x55fab8fe4e80, job=0x55fab608f070) at ./src/core/copyjob.cpp:2169
#9  0x00007f12d1655f3f in QtPrivate::QSlotObjectBase::call (a=0x7ffd5e45cec0, r=0x55fab8fe4e80, this=0x55fabab15a40) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#10 QMetaObject::activate (sender=sender@entry=0x55fab608f070, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffd5e45cec0) at kernel/qobject.cpp:3759
#11 0x00007f12d16564f7 in QMetaObject::activate (sender=sender@entry=0x55fab608f070, m=m@entry=0x7f12d3c62500 <KJob::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffd5e45cec0) at kernel/qobject.cpp:3631
#12 0x00007f12d3a0b08c in KJob::result (this=this@entry=0x55fab608f070, _t1=<optimized out>, _t1@entry=0x55fab608f070, _t2=...) at ./obj-x86_64-linux-gnu/src/lib/KF5CoreAddons_autogen/include/moc_kjob.cpp:573
#13 0x00007f12d3a0bbc1 in KJob::finishJob (this=0x55fab608f070, emitResult=<optimized out>) at ./src/lib/jobs/kjob.cpp:109
#14 0x00007f12d3a0da7a in KJob::emitResult (this=<optimized out>) at ./src/lib/jobs/kjob.cpp:293
#15 0x00007f12ca067170 in KIO::FileCopyJob::slotResult (this=0x55fab608f070, job=0x55fabace4a20) at ./src/core/filecopyjob.cpp:553
#16 0x00007f12d1655f3f in QtPrivate::QSlotObjectBase::call (a=0x7ffd5e45d060, r=0x55fab608f070, this=0x55fabaa9bbc0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#17 QMetaObject::activate (sender=sender@entry=0x55fabace4a20, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffd5e45d060) at kernel/qobject.cpp:3759
#18 0x00007f12d16564f7 in QMetaObject::activate (sender=sender@entry=0x55fabace4a20, m=m@entry=0x7f12d3c62500 <KJob::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffd5e45d060) at kernel/qobject.cpp:3631
#19 0x00007f12d3a0b08c in KJob::result (this=this@entry=0x55fabace4a20, _t1=<optimized out>, _t1@entry=0x55fabace4a20, _t2=...) at ./obj-x86_64-linux-gnu/src/lib/KF5CoreAddons_autogen/include/moc_kjob.cpp:573
#20 0x00007f12d3a0bbc1 in KJob::finishJob (this=0x55fabace4a20, emitResult=<optimized out>) at ./src/lib/jobs/kjob.cpp:109
#21 0x00007f12d3a0da7a in KJob::emitResult (this=<optimized out>) at ./src/lib/jobs/kjob.cpp:293
#22 0x00007f12ca0762c0 in KIO::SimpleJob::slotFinished (this=0x55fabace4a20) at ./src/core/simplejob.cpp:232
#23 0x00007f12d1655f3f in QtPrivate::QSlotObjectBase::call (a=0x7ffd5e45d230, r=0x55fabace4a20, this=0x55fabadd4d00) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#24 QMetaObject::activate (sender=sender@entry=0x55fab76259d0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x0) at kernel/qobject.cpp:3759
#25 0x00007f12d16564f7 in QMetaObject::activate (sender=sender@entry=0x55fab76259d0, m=m@entry=0x7f12ca329620 <KIO::SlaveInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x0) at kernel/qobject.cpp:3631
#26 0x00007f12ca0494f3 in KIO::SlaveInterface::finished (this=this@entry=0x55fab76259d0) at ./obj-x86_64-linux-gnu/src/core/KF5KIOCore_autogen/include/moc_slaveinterface.cpp:441
#27 0x00007f12ca04d544 in KIO::SlaveInterface::dispatch (this=0x55fab76259d0, _cmd=<optimized out>, rawdata=...) at ./src/core/slaveinterface.cpp:160
#28 0x00007f12ca049c48 in KIO::SlaveInterface::dispatch (this=0x55fab76259d0) at ./src/core/slaveinterface.cpp:89
#29 0x00007f12ca04ff71 in KIO::Slave::gotInput (this=0x55fab76259d0) at ./src/core/slave.cpp:406
#30 0x00007f12d1655f3f in QtPrivate::QSlotObjectBase::call (a=0x7ffd5e45d4d0, r=0x55fab76259d0, this=0x55fabada13f0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#31 QMetaObject::activate (sender=0x55fab994dd70, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3759
#32 0x00007f12d16564f7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f12ca328380 <KIO::Connection::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3631
#33 0x00007f12c9ff1da9 in KIO::Connection::readyRead (this=<optimized out>) at ./obj-x86_64-linux-gnu/src/core/KF5KIOCore_autogen/include/moc_connection_p.cpp:147
#34 KIO::ConnectionPrivate::dequeue (this=0x55fabad89560) at ./src/core/connection.cpp:46
#35 0x00007f12d1656992 in QObject::event (this=0x55fab994dd70, e=<optimized out>) at kernel/qobject.cpp:1249
#36 0x00007f12d2f8083c in QApplicationPrivate::notify_helper (this=this@entry=0x55fab5efc020, receiver=receiver@entry=0x55fab994dd70, e=e@entry=0x55fabad3e830) at kernel/qapplication.cpp:3752
#37 0x00007f12d2f87dd0 in QApplication::notify (this=0x7ffd5e45dc00, receiver=0x55fab994dd70, e=0x55fabad3e830) at kernel/qapplication.cpp:3499
#38 0x00007f12d1626328 in QCoreApplication::notifyInternal2 (receiver=0x55fab994dd70, event=0x55fabad3e830) at kernel/qcoreapplication.cpp:1061
#39 0x00007f12d16264fe in QCoreApplication::sendEvent (receiver=<optimized out>, event=event@entry=0x55fabad3e830) at kernel/qcoreapplication.cpp:1451
#40 0x00007f12d1628e87 in QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55fab5ef1b40) at kernel/qcoreapplication.cpp:1800
#41 0x00007f12d1629428 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1654
#42 0x00007f12d1683b23 in postEventSourceDispatch (s=0x55fab5f5ff60) at kernel/qeventdispatcher_glib.cpp:276
#43 0x00007f12caba8387 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f12caba85c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f12caba864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f12d168313f in QEventDispatcherGlib::processEvents (this=0x55fab5f69a20, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#47 0x00007f12d162464a in QEventLoop::exec (this=this@entry=0x7ffd5e45dae0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#48 0x00007f12d162d800 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1364
#49 0x000055fab595ff95 in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:212

Reported using DrKonqi