[okular] [Bug 408849] New: okular crashes scrolling through certain pdf

Peter Hedwig bugzilla_noreply at kde.org
Mon Jun 17 20:42:53 BST 2019 

https://bugs.kde.org/show_bug.cgi?id=408849

            Bug ID: 408849
           Summary: okular crashes scrolling through certain pdf
           Product: okular
           Version: 1.7.2
          Platform: Neon Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: peter.hedwig at web.de
  Target Milestone: ---

Application: okular (1.7.2)

Qt Version: 5.12.3
Frameworks Version: 5.59.0
Operating System: Linux 5.1.10-050110-generic x86_64
Distribution: KDE neon User Edition 5.16

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

1. open https://ctan.kako-dev.de/macros/latex/contrib/microtype/microtype.pdf
with okular
2. scroll through the pdf and expect a crash at around page 3

The crash can be reproduced every time.

-- Backtrace:
Application: Okular (okular), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0a1310a200 (LWP 6405))]

Thread 20 (Thread 0x7f09c9216700 (LWP 6436)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f0a0f4a3f75 in QtLinuxFutex::_q_futex (val3=0, addr2=0x0, val2=0,
val=3, op=0, addr=<optimized out>) at thread/qfutex_p.h:92
#2  QtLinuxFutex::futexWait<QBasicAtomicPointer<QMutexData> >
(expectedValue=<optimized out>, futex=...) at thread/qfutex_p.h:107
#3  lockInternal_helper<false> (timeout=-1, elapsedTimer=0x0, d_ptr=...) at
thread/qmutex_linux.cpp:142
#4  QBasicMutex::lockInternal (this=0x55e2e365e5f0) at
thread/qmutex_linux.cpp:159
#5  0x00007f0a0f4a415b in QMutex::lock (this=<optimized out>) at
thread/qmutex.cpp:227
#6  0x00007f09e009957b in PDFGenerator::textPage (this=0x55e2e335b720,
request=0x55e2e3ff5f90) at ./generators/poppler/generator_pdf.cpp:1301
#7  0x00007f09f6d09915 in Okular::TextPageGenerationThread::run
(this=0x55e2e3ff5f70) at ./core/generator_p.cpp:131
#8  0x00007f0a0f4a3c72 in QThreadPrivate::start (arg=0x55e2e3ff5f70) at
thread/qthread_unix.cpp:361
#9  0x00007f0a0bb3a6db in start_thread (arg=0x7f09c9216700) at
pthread_create.c:463
#10 0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f09a6c1d700 (LWP 6435)):
[KCrash Handler]
#6  QVariant::clear (this=this at entry=0x7f0926c1cb28) at
kernel/qvariant.cpp:2400
#7  0x00007f0a0f6c23b8 in QVariant::operator= (this=0x7f0926c1cb28,
variant=...) at kernel/qvariant.cpp:2335
#8  0x00007f09f6cbd18d in Okular::Action::setNativeId
(this=this at entry=0x7f09900284c0, id=...) at ./core/action.cpp:57
#9  0x00007f09e0096c57 in createLinkFromPopplerLink
(popplerLink=popplerLink at entry=0x7f09900284c0, deletePopplerLink=false,
deletePopplerLink at entry=true) at ./generators/poppler/generator_pdf.cpp:508
#10 0x00007f09e0097a15 in generateLinks (popplerLinks=...) at
./generators/poppler/generator_pdf.cpp:563
#11 0x00007f09e009b740 in PDFGenerator::image (this=0x55e2e335b720,
request=0x55e2e3cd3480) at ./generators/poppler/generator_pdf.cpp:1194
#12 0x00007f09f6d0a195 in Okular::PixmapGenerationThread::run
(this=0x55e2e335ead0) at ./core/generator_p.cpp:62
#13 0x00007f0a0f4a3c72 in QThreadPrivate::start (arg=0x55e2e335ead0) at
thread/qthread_unix.cpp:361
#14 0x00007f0a0bb3a6db in start_thread (arg=0x7f09a6c1d700) at
pthread_create.c:463
#15 0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f09ca7fc700 (LWP 6422)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81d80) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e81d30,
cond=0x55e2e2e81d58) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e81d58, mutex=0x55e2e2e81d30) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09ca7fc700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f09caffd700 (LWP 6421)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81d80) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e81d30,
cond=0x55e2e2e81d58) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e81d58, mutex=0x55e2e2e81d30) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09caffd700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f09cb7fe700 (LWP 6420)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81d80) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e81d30,
cond=0x55e2e2e81d58) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e81d58, mutex=0x55e2e2e81d30) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09cb7fe700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f09cbfff700 (LWP 6419)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81d80) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e81d30,
cond=0x55e2e2e81d58) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e81d58, mutex=0x55e2e2e81d30) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09cbfff700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f09d0ff9700 (LWP 6418)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81800) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e817b0,
cond=0x55e2e2e817d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e817d8, mutex=0x55e2e2e817b0) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09d0ff9700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f09d17fa700 (LWP 6417)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81800) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e817b0,
cond=0x55e2e2e817d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e817d8, mutex=0x55e2e2e817b0) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09d17fa700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f09d1ffb700 (LWP 6416)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81800) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e817b0,
cond=0x55e2e2e817d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e817d8, mutex=0x55e2e2e817b0) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09d1ffb700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f09d27fc700 (LWP 6415)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81800) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e817b0,
cond=0x55e2e2e817d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e817d8, mutex=0x55e2e2e817b0) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09d27fc700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f09d2ffd700 (LWP 6414)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81800) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e817b0,
cond=0x55e2e2e817d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e817d8, mutex=0x55e2e2e817b0) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09d2ffd700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f09d37fe700 (LWP 6413)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81800) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e817b0,
cond=0x55e2e2e817d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e817d8, mutex=0x55e2e2e817b0) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09d37fe700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f09d3fff700 (LWP 6412)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81800) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e817b0,
cond=0x55e2e2e817d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e817d8, mutex=0x55e2e2e817b0) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09d3fff700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f09e0eae700 (LWP 6411)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81800) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e817b0,
cond=0x55e2e2e817d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e817d8, mutex=0x55e2e2e817b0) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09e0eae700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f09e16af700 (LWP 6410)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e81800) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e817b0,
cond=0x55e2e2e817d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e817d8, mutex=0x55e2e2e817b0) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09e16af700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f09e1eb0700 (LWP 6409)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2b11038) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2b10fe8,
cond=0x55e2e2b11010) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2b11010, mutex=0x55e2e2b10fe8) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09e1eb0700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f09e27f2700 (LWP 6408)):
#0  0x00007f0a0bb409f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55e2e2e804d8) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e2e2e80488,
cond=0x55e2e2e804b0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e2e2e804b0, mutex=0x55e2e2e80488) at
pthread_cond_wait.c:655
#3  0x00007f09e7b1b85b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f09e7b1b457 in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f09e27f2700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f09f8767700 (LWP 6407)):
#0  0x00007f0a0ed96bf9 in __GI___poll (fds=0x7f09f0004db0, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0a098094c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0a098095dc in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0a0f6d9dcb in QEventDispatcherGlib::processEvents
(this=0x7f09f0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f0a0f67b03a in QEventLoop::exec (this=this at entry=0x7f09f8766d70,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f0a0f4a24ca in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:531
#6  0x00007f0a0fb48015 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f0a0f4a3c72 in QThreadPrivate::start (arg=0x7f0a0fdbfd80) at
thread/qthread_unix.cpp:361
#8  0x00007f0a0bb3a6db in start_thread (arg=0x7f09f8767700) at
pthread_create.c:463
#9  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f0a01450700 (LWP 6406)):
#0  0x00007f0a0ed96bf9 in __GI___poll (fds=0x7f0a0144fca8, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0a0c5bc747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f0a0c5be36a in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f0a04237578 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f0a0f4a3c72 in QThreadPrivate::start (arg=0x55e2e291aff0) at
thread/qthread_unix.cpp:361
#5  0x00007f0a0bb3a6db in start_thread (arg=0x7f0a01450700) at
pthread_create.c:463
#6  0x00007f0a0eda388f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f0a1310a200 (LWP 6405)):
#0  0x00007f0a0ed96bf9 in __GI___poll (fds=0x55e2e3df8a70, nfds=1, timeout=4)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0a098094c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0a098095dc in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0a0f6d9dcb in QEventDispatcherGlib::processEvents
(this=0x55e2e2972ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f0a0f67b03a in QEventLoop::exec (this=this at entry=0x7ffe1a13ce60,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f0a0f684170 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1363
#6  0x000055e2e07b09c7 in main (argc=<optimized out>, argv=<optimized out>) at
./shell/main.cpp:90

Reported using DrKonqi

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