Bug 391436

Summary: systemsettings5 crashes regularily under wayland
Product: [Applications] systemsettings Reporter: Eugene <ken20001>
Component: generalAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DOWNSTREAM    
Severity: normal CC: onvergetelijkontbijt
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.12.2   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Eugene 2018-03-05 13:56:08 UTC 
Application: systemsettings5 (5.12.2)

Qt Version: 5.9.3
Frameworks Version: 5.43.0
Operating System: Linux 4.15.0-10-generic x86_64
Distribution: Ubuntu Bionic Beaver (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
Just run systemsettings under wayland and change some settings, for example in display settings. As a result, systemsettings crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: Системні параметри (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9ea007d800 (LWP 2788))]

Thread 10 (Thread 0x7f9e4ce8d700 (LWP 2806)):
#0  0x00007f9e97c859f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5634c7198414) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5634c71983c0, cond=0x5634c71983e8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5634c71983e8, mutex=0x5634c71983c0) at pthread_cond_wait.c:655
#3  0x00007f9e9c1d35db in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5634c71983c0) at thread/qwaitcondition_unix.cpp:143
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x5634c7b03390, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#5  0x00007f9e9a1e9db8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f9e9a1ea21a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f9e9c1d21ad in QThreadPrivate::start (arg=0x5634c7b03310) at thread/qthread_unix.cpp:368
#8  0x00007f9e97c7f6db in start_thread (arg=0x7f9e4ce8d700) at pthread_create.c:463
#9  0x00007f9e9baca88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f9e5c8c3700 (LWP 2805)):
#0  0x00007f9e9592f7d5 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9e959301fb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9e959303dc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9e9c40937b in QEventDispatcherGlib::processEvents (this=0x7f9e54004e00, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f9e9c3ae51a in QEventLoop::exec (this=this@entry=0x7f9e5c8c2d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f9e9c1cd26a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007f9e99d28065 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f9e9c1d21ad in QThreadPrivate::start (arg=0x5634c70f6070) at thread/qthread_unix.cpp:368
#8  0x00007f9e97c7f6db in start_thread (arg=0x7f9e5c8c3700) at pthread_create.c:463
#9  0x00007f9e9baca88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f9e5d0c4700 (LWP 2800)):
#0  0x00007f9e9592f833 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9e959301fb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9e959303dc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9e9c40937b in QEventDispatcherGlib::processEvents (this=0x7f9e50000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f9e9c3ae51a in QEventLoop::exec (this=this@entry=0x7f9e5d0c3da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f9e9c1cd26a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007f9e9c1d21ad in QThreadPrivate::start (arg=0x5634c669b1c0) at thread/qthread_unix.cpp:368
#7  0x00007f9e97c7f6db in start_thread (arg=0x7f9e5d0c4700) at pthread_create.c:463
#8  0x00007f9e9baca88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f9e5daa0700 (LWP 2799)):
#0  0x00007f9e9bab90b4 in __GI___libc_read (fd=15, buf=0x7f9e5da9fb90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f9e95974870 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9e9592fdb7 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9e95930270 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9e959303dc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9e9c40937b in QEventDispatcherGlib::processEvents (this=0x7f9e58000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f9e9c3ae51a in QEventLoop::exec (this=this@entry=0x7f9e5da9fda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#7  0x00007f9e9c1cd26a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#8  0x00007f9e9c1d21ad in QThreadPrivate::start (arg=0x5634c6657c20) at thread/qthread_unix.cpp:368
#9  0x00007f9e97c7f6db in start_thread (arg=0x7f9e5daa0700) at pthread_create.c:463
#10 0x00007f9e9baca88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f9e65d28700 (LWP 2797)):
#0  0x00007f9e95975be9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9e9592fa11 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9e95930247 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9e959303dc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9e9c40937b in QEventDispatcherGlib::processEvents (this=0x7f9e60000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f9e9c3ae51a in QEventLoop::exec (this=this@entry=0x7f9e65d27d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007f9e9c1cd26a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#7  0x00007f9e99d28065 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f9e9c1d21ad in QThreadPrivate::start (arg=0x5634c6090030) at thread/qthread_unix.cpp:368
#9  0x00007f9e97c7f6db in start_thread (arg=0x7f9e65d28700) at pthread_create.c:463
#10 0x00007f9e9baca88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f9e72019700 (LWP 2793)):
#0  0x00007ffcad5849c1 in ?? ()
#1  0x00007ffcad584c60 in clock_gettime ()
#2  0x00007f9e9bad9ea6 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7f9e72018af0) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f9e9c408c91 in qt_clock_gettime (ts=0x7f9e72018af0, clock=<optimized out>) at kernel/qelapsedtimer_unix.cpp:111
#4  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#5  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#6  0x00007f9e9c4074c9 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f9e68004cf0) at kernel/qtimerinfo_unix.cpp:91
#7  0x00007f9e9c407aa5 in QTimerInfoList::timerWait (this=0x7f9e68004cf0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#8  0x00007f9e9c4090ee in timerSourcePrepareHelper (timeout=0x7f9e72018bb4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#9  timerSourcePrepare (source=<optimized out>, timeout=0x7f9e72018bb4) at kernel/qeventdispatcher_glib.cpp:165
#10 0x00007f9e9592f828 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f9e959301fb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f9e959303dc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f9e9c40937b in QEventDispatcherGlib::processEvents (this=0x7f9e68000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#14 0x00007f9e9c3ae51a in QEventLoop::exec (this=this@entry=0x7f9e72018d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#15 0x00007f9e9c1cd26a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#16 0x00007f9e99d28065 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007f9e9c1d21ad in QThreadPrivate::start (arg=0x5634c5cabf90) at thread/qthread_unix.cpp:368
#18 0x00007f9e97c7f6db in start_thread (arg=0x7f9e72019700) at pthread_create.c:463
#19 0x00007f9e9baca88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f9e7884e700 (LWP 2792)):
#0  0x00007f9e97c859f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5634c5baccb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5634c5bacc68, cond=0x5634c5bacc90) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5634c5bacc90, mutex=0x5634c5bacc68) at pthread_cond_wait.c:655
#3  0x00007f9e7dca1ecb in cnd_wait (mtx=0x5634c5bacc68, cond=0x5634c5bacc90) at ../../../../../include/c11/threads_posix.h:155
#4  pipe_semaphore_wait (sema=0x5634c5bacc68) at ../../../../../src/gallium/auxiliary/os/os_thread.h:108
#5  thread_function (init_data=init_data@entry=0x5634c5bacbc0) at ../../../../../src/gallium/drivers/llvmpipe/lp_rast.c:809
#6  0x00007f9e7dca1d47 in impl_thrd_routine (p=<optimized out>) at ../../../../../include/c11/threads_posix.h:87
#7  0x00007f9e97c7f6db in start_thread (arg=0x7f9e7884e700) at pthread_create.c:463
#8  0x00007f9e9baca88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f9e7904f700 (LWP 2791)):
#0  0x00007f9e97c859f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5634c5bacb50) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5634c5bacb00, cond=0x5634c5bacb28) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5634c5bacb28, mutex=0x5634c5bacb00) at pthread_cond_wait.c:655
#3  0x00007f9e7dca1ecb in cnd_wait (mtx=0x5634c5bacb00, cond=0x5634c5bacb28) at ../../../../../include/c11/threads_posix.h:155
#4  pipe_semaphore_wait (sema=0x5634c5bacb00) at ../../../../../src/gallium/auxiliary/os/os_thread.h:108
#5  thread_function (init_data=init_data@entry=0x5634c5baca58) at ../../../../../src/gallium/drivers/llvmpipe/lp_rast.c:809
#6  0x00007f9e7dca1d47 in impl_thrd_routine (p=<optimized out>) at ../../../../../include/c11/threads_posix.h:87
#7  0x00007f9e97c7f6db in start_thread (arg=0x7f9e7904f700) at pthread_create.c:463
#8  0x00007f9e9baca88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f9e8af1f700 (LWP 2790)):
#0  0x00007f9e9babdbf9 in __GI___poll (fds=0x7f9e84003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9e959302c9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9e959303dc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9e9c40937b in QEventDispatcherGlib::processEvents (this=0x7f9e84000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f9e9c3ae51a in QEventLoop::exec (this=this@entry=0x7f9e8af1ed70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f9e9c1cd26a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007f9e9dd10d45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f9e9c1d21ad in QThreadPrivate::start (arg=0x7f9e9df83d60) at thread/qthread_unix.cpp:368
#8  0x00007f9e97c7f6db in start_thread (arg=0x7f9e8af1f700) at pthread_create.c:463
#9  0x00007f9e9baca88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f9ea007d800 (LWP 2788)):
[KCrash Handler]
#6  dri2_wl_swrast_get_backbuffer_data (dri2_surf=0x5634c78cb2f0) at ../../../src/egl/drivers/dri2/platform_wayland.c:1730
#7  dri2_wl_swrast_put_image2 (draw=0x5634c8469f90, op=<optimized out>, x=<optimized out>, y=0, w=<optimized out>, h=576, stride=3584, data=0x5634c921b6c0 "\264\263\262\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377"..., loaderPrivate=0x5634c78cb2f0) at ../../../src/egl/drivers/dri2/platform_wayland.c:1845
#8  0x00007f9e80f286ed in dri2_wl_swrast_put_image (draw=<optimized out>, op=<optimized out>, x=<optimized out>, y=<optimized out>, w=<optimized out>, h=<optimized out>, data=0x5634c921b6c0 "\264\263\262\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377\374\374\374\377"..., loaderPrivate=0x5634c78cb2f0) at ../../../src/egl/drivers/dri2/platform_wayland.c:1881
#9  0x00007f9e7d8e7ad6 in put_image (height=<optimized out>, width=<optimized out>, data=<optimized out>, dPriv=<optimized out>) at ../../../../../src/gallium/state_trackers/dri/drisw.c:72
#10 drisw_put_image (drawable=<optimized out>, data=<optimized out>, width=<optimized out>, height=<optimized out>) at ../../../../../src/gallium/state_trackers/dri/drisw.c:142
#11 0x00007f9e7d8e829a in drisw_present_texture (sub_box=0x0, ptex=0x5634c6029820, dPriv=0x5634c8469f90) at ../../../../../src/gallium/state_trackers/dri/drisw.c:165
#12 drisw_copy_to_front (ptex=0x5634c6029820, dPriv=0x5634c8469f90) at ../../../../../src/gallium/state_trackers/dri/drisw.c:182
#13 drisw_swap_buffers (dPriv=0x5634c8469f90) at ../../../../../src/gallium/state_trackers/dri/drisw.c:209
#14 0x00007f9e80f26236 in dri2_wl_swrast_swap_buffers (drv=<optimized out>, disp=<optimized out>, draw=<optimized out>) at ../../../src/egl/drivers/dri2/platform_wayland.c:1891
#15 0x00007f9e80f1904e in eglSwapBuffers (dpy=0x5634c5ba81c0, surface=<optimized out>) at ../../../src/egl/main/eglapi.c:1259
#16 0x00007f9e81563713 in QtWaylandClient::QWaylandGLContext::swapBuffers (this=0x5634c604a020, surface=<optimized out>) at ../../../../hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp:552
#17 0x00007f9e9cc3cbaa in QOpenGLContext::swapBuffers (this=this@entry=0x5634c6049ef0, surface=surface@entry=0x5634c7080f20) at kernel/qopenglcontext.cpp:1108
#18 0x00007f9e9cef1a7f in QPlatformBackingStore::composeAndFlush (this=this@entry=0x5634c5a866d0, window=<optimized out>, region=..., offset=..., textures=textures@entry=0x5634c74476f0, context=context@entry=0x5634c6049ef0, translucentBackground=<optimized out>) at painting/qplatformbackingstore.cpp:421
#19 0x00007f9e9d3cae97 in QWidgetBackingStore::qt_flush (widget=0x5634c5c8e6c0, region=..., backingStore=<optimized out>, tlw=<optimized out>, tlwOffset=..., widgetTextures=<optimized out>, widgetBackingStore=<optimized out>) at kernel/qwidgetbackingstore.cpp:149
#20 0x00007f9e9d3cc612 in QWidgetBackingStore::flush (this=this@entry=0x5634c5bc0270, widget=widget@entry=0x0) at kernel/qwidgetbackingstore.cpp:1426
#21 0x00007f9e9d3cdc99 in QWidgetBackingStore::endPaint (beginPaintInfo=<synthetic pointer>, backingStore=<optimized out>, cleaned=..., this=0x5634c5bc0270) at kernel/qwidgetbackingstore.cpp:359
#22 QWidgetBackingStore::doSync (this=this@entry=0x5634c5bc0270) at kernel/qwidgetbackingstore.cpp:1384
#23 0x00007f9e9d3cdec5 in QWidgetBackingStore::sync (this=0x5634c5bc0270) at kernel/qwidgetbackingstore.cpp:1162
#24 0x00007f9e9d3e549f in QWidgetPrivate::syncBackingStore (this=0x5634c59f3200) at kernel/qwidget.cpp:1981
#25 0x00007f9e9d3fcf28 in QWidget::event (this=this@entry=0x5634c5a23750, event=event@entry=0x7ffcad567cf0) at kernel/qwidget.cpp:9139
#26 0x00007f9e9d51036b in QMainWindow::event (this=this@entry=0x5634c5a23750, event=event@entry=0x7ffcad567cf0) at widgets/qmainwindow.cpp:1563
#27 0x00007f9e9f5a8ac7 in KMainWindow::event (this=this@entry=0x5634c5a23750, ev=ev@entry=0x7ffcad567cf0) at ./src/kmainwindow.cpp:865
#28 0x00007f9e9f5ed985 in KXmlGuiWindow::event (this=0x5634c5a23750, ev=0x7ffcad567cf0) at ./src/kxmlguiwindow.cpp:119
#29 0x00007f9e9d3be65c in QApplicationPrivate::notify_helper (this=this@entry=0x5634c5970610, receiver=receiver@entry=0x5634c5a23750, e=e@entry=0x7ffcad567cf0) at kernel/qapplication.cpp:3722
#30 0x00007f9e9d3c5f24 in QApplication::notify (this=0x7ffcad568770, receiver=0x5634c5a23750, e=0x7ffcad567cf0) at kernel/qapplication.cpp:3481
#31 0x00007f9e9c3b04c8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x5634c5a23750, event=event@entry=0x7ffcad567cf0) at kernel/qcoreapplication.cpp:1018
#32 0x00007f9e9d3cece8 in QCoreApplication::sendEvent (event=0x7ffcad567cf0, receiver=0x5634c5a23750) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
#33 QWidgetBackingStore::sendUpdateRequest (this=this@entry=0x5634c5bc0270, widget=0x5634c5a23750, updateTime=updateTime@entry=QWidgetBackingStore::UpdateNow) at kernel/qwidgetbackingstore.cpp:500
#34 0x00007f9e9d3cf9a7 in QWidgetBackingStore::sendUpdateRequest (updateTime=QWidgetBackingStore::UpdateNow, widget=<optimized out>, this=0x5634c5bc0270) at kernel/qwidgetbackingstore.cpp:470
#35 QWidgetBackingStore::markDirty (this=0x5634c5bc0270, rect=..., widget=widget@entry=0x5634c707c340, updateTime=updateTime@entry=QWidgetBackingStore::UpdateNow, bufferState=bufferState@entry=QWidgetBackingStore::BufferValid) at kernel/qwidgetbackingstore.cpp:674
#36 0x00007f9e9d3e7ca3 in QWidget::repaint (this=0x5634c707c340, rect=...) at kernel/qwidget.cpp:10949
#37 0x00007f9e9d3e7cec in QWidget::repaint (this=<optimized out>) at kernel/qwidget.cpp:10905
#38 0x00007f9e9d41a205 in QWidgetWindow::event (this=0x5634c7ba6fe0, event=0x7ffcad568100) at kernel/qwidgetwindow.cpp:329
#39 0x00007f9e9d3be65c in QApplicationPrivate::notify_helper (this=this@entry=0x5634c5970610, receiver=receiver@entry=0x5634c7ba6fe0, e=e@entry=0x7ffcad568100) at kernel/qapplication.cpp:3722
#40 0x00007f9e9d3c5f24 in QApplication::notify (this=0x7ffcad568770, receiver=0x5634c7ba6fe0, e=0x7ffcad568100) at kernel/qapplication.cpp:3481
#41 0x00007f9e9c3b04c8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x5634c7ba6fe0, event=event@entry=0x7ffcad568100) at kernel/qcoreapplication.cpp:1018
#42 0x00007f9e9cc0ed81 in QCoreApplication::sendEvent (event=0x7ffcad568100, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
#43 QWindowPrivate::deliverUpdateRequest (this=this@entry=0x5634c72e06e0) at kernel/qwindow.cpp:2305
#44 0x00007f9e9cc0f299 in QWindow::event (this=this@entry=0x5634c7ba6fe0, ev=ev@entry=0x7ffcad568440) at kernel/qwindow.cpp:2276
#45 0x00007f9e9d419f63 in QWidgetWindow::event (this=0x5634c7ba6fe0, event=0x7ffcad568440) at kernel/qwidgetwindow.cpp:339
#46 0x00007f9e9d3be65c in QApplicationPrivate::notify_helper (this=this@entry=0x5634c5970610, receiver=receiver@entry=0x5634c7ba6fe0, e=e@entry=0x7ffcad568440) at kernel/qapplication.cpp:3722
#47 0x00007f9e9d3c5f24 in QApplication::notify (this=0x7ffcad568770, receiver=0x5634c7ba6fe0, e=0x7ffcad568440) at kernel/qapplication.cpp:3481
#48 0x00007f9e9c3b04c8 in QCoreApplication::notifyInternal2 (receiver=0x5634c7ba6fe0, event=event@entry=0x7ffcad568440) at kernel/qcoreapplication.cpp:1018
#49 0x00007f9e9c4087fe in QCoreApplication::sendEvent (event=0x7ffcad568440, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
#50 QTimerInfoList::activateTimers (this=0x5634c59f8120) at kernel/qtimerinfo_unix.cpp:643
#51 0x00007f9e9c408fc1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:182
#52 0x00007f9e95930117 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#53 0x00007f9e95930350 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#54 0x00007f9e959303dc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#55 0x00007f9e9c40935f in QEventDispatcherGlib::processEvents (this=0x5634c59f7130, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#56 0x00007f9e9c3ae51a in QEventLoop::exec (this=this@entry=0x7ffcad568690, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#57 0x00007f9e9c3b7484 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1291
#58 0x00005634c4fd8e44 in main (argc=<optimized out>, argv=<optimized out>) at ./app/main.cpp:67

Reported using DrKonqi
Comment 1 Christoph Feck 2018-03-30 03:40:48 UTC 
Please ask for help in a forum of your distribution. The crash is in the 'swrast' Mesa driver, which is only used when the accelerated graphics drivers are not setup correctly.