https://bugs.kde.org/show_bug.cgi?id=431120
Bug ID: 431120 Summary: systemsettings5 crashes after update to Ubuntu 20.04 Product: systemsettings Version: 5.18.4 Platform: Ubuntu Packages OS: Linux Status: REPORTED Severity: critical Priority: NOR Component: generic-crash Assignee: plasma-b...@kde.org Reporter: sourish.b...@gmail.com Target Milestone: --- I updated from Ubuntu 18.04.5 LTS to 20.04.1 LTS with do-release-upgrade. After the update, the system settings application crashes every time I try to open system settings. STEPS TO REPRODUCE 1. Select KMenu>Settings>System Settings or type "systemsettings5" in a terminal. OBSERVED RESULT When I try "systemsettings5" from a terminal, the following happens: i@numenor ~ $ systemsettings5 QQmlEngine::setContextForObject(): Object already has a QQmlContext KCrash: crashing... crashRecursionCounter = 2 KCrash: Application Name = systemsettings5 path = /usr/bin pid = 10239 KCrash: Arguments: /usr/bin/systemsettings5 KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi from kdeinit sock_file=/run/user/32969/kdeinit5__0 [1]+ Stopped systemsettings5 i@numenor ~ $ QSocketNotifier: Invalid socket 8 and type 'Read', disabling... QSocketNotifier: Invalid socket 9 and type 'Read', disabling... Note that I did not hit Ctrl+Z to send systemsettings5 to the background, that happened automatically. After it goes to the background, I get a couple more lines of output, QSocketNotifier: Invalid socket 8 and type 'Read', disabling... QSocketNotifier: Invalid socket 9 and type 'Read', disabling... and then nothing more. At this point, I can bring it back to foreground by 'fg', but that doesn't change anything, it has crashed/segfaulted already. I gathered the following backtrace from Dr Konqui: Application: System Settings (systemsettings5), signal: Segmentation fault Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7f9ec59a0800 (LWP 10239))] Thread 9 (Thread 0x7f9eab5ef700 (LWP 10248)): #0 __GI___libc_read (nbytes=16, buf=0x7f9eab5eeb70, fd=18) at ../sysdeps/unix/sysv/linux/read.c:26 #1 __GI___libc_read (fd=18, buf=0x7f9eab5eeb70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24 #2 0x00007f9ec7dbc89f in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f9ec7d73cfe in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007f9ec7d74152 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007f9ec7d742e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #6 0x00007f9eca03a583 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007f9ec9fe14db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007f9ec9e19785 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x00007f9ec90cc1a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #10 0x00007f9ec9e1a9d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #11 0x00007f9ec8658609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #12 0x00007f9ec9aab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 8 (Thread 0x7f9eb1979700 (LWP 10247)): #0 0x00007f9ec7dc133d in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007f9ec7d7373a in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f9ec7d740db in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f9ec7d742e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007f9eca03a583 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007f9ec9fe14db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007f9ec9e19785 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007f9ec90cc1a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #8 0x00007f9ec9e1a9d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x00007f9ec8658609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #10 0x00007f9ec9aab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 7 (Thread 0x7f9eaa168700 (LWP 10245)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5603831ec588) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5603831ec538, cond=0x5603831ec560) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x5603831ec560, mutex=0x5603831ec538) at pthread_cond_wait.c:638 #3 0x00007f9ebcf4562b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #4 0x00007f9ebcf4523b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #5 0x00007f9ec8658609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f9ec9aab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 6 (Thread 0x7f9eb2969700 (LWP 10244)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5603831ec588) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5603831ec538, cond=0x5603831ec560) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x5603831ec560, mutex=0x5603831ec538) at pthread_cond_wait.c:638 #3 0x00007f9ebcf4562b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #4 0x00007f9ebcf4523b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #5 0x00007f9ec8658609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f9ec9aab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 5 (Thread 0x7f9eb316a700 (LWP 10243)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5603831ec588) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5603831ec538, cond=0x5603831ec560) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x5603831ec560, mutex=0x5603831ec538) at pthread_cond_wait.c:638 #3 0x00007f9ebcf4562b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #4 0x00007f9ebcf4523b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #5 0x00007f9ec8658609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f9ec9aab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 4 (Thread 0x7f9eb396b700 (LWP 10242)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5603831ec588) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5603831ec538, cond=0x5603831ec560) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x5603831ec560, mutex=0x5603831ec538) at pthread_cond_wait.c:638 #3 0x00007f9ebcf4562b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #4 0x00007f9ebcf4523b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #5 0x00007f9ec8658609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f9ec9aab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7f9ebfb68700 (LWP 10241)): #0 0x00007f9ec7d736c8 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007f9ec7d740db in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f9ec7d742e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f9eca03a583 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007f9ec9fe14db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007f9ec9e19785 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007f9eca2bcefa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #7 0x00007f9ec9e1a9d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007f9ec8658609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #9 0x00007f9ec9aab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7f9ec4aeb700 (LWP 10240)): #0 0x00007f9ec9a9eaff in __GI___poll (fds=0x7f9ec4aeaca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007f9ec8615c1a in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #2 0x00007f9ec861790a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #3 0x00007f9ec52ef298 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #4 0x00007f9ec9e1a9d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007f9ec8658609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f9ec9aab293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7f9ec59a0800 (LWP 10239)): [KCrash Handler] #6 0x00007f9ebd5eac14 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #7 0x00007f9ebd7afa84 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #8 0x00007f9ebd5c686d in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #9 0x00007f9ebd5c74a5 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #10 0x00007f9ebcc058d4 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so #11 0x00007f9eca7758d8 in QPlatformBackingStore::composeAndFlush(QWindow*, QRegion const&, QPoint const&, QPlatformTextureList*, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #12 0x00007f9ec52e3008 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #13 0x00007f9ecaaa5e84 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #14 0x00007f9ecaaa7898 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #15 0x00007f9ecaaa8c11 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #16 0x00007f9ecaaa93da in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #17 0x00007f9ecaaf78dc in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #18 0x00007f9ecaaf82d0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #19 0x00007f9ecaa96a66 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #20 0x00007f9ecaaa00f0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #21 0x00007f9ec9fe293a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #22 0x00007f9eca468de6 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #23 0x00007f9eca469014 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #24 0x00007f9eca44335b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #25 0x00007f9ec52f032e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #26 0x00007f9ec7d73fbd in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #27 0x00007f9ec7d74240 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #28 0x00007f9ec7d742e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #29 0x00007f9eca03a565 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #30 0x00007f9ec9fe14db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #31 0x00007f9ec9fe9246 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #32 0x0000560380d91856 in ?? () #33 0x00007f9ec99b00b3 in __libc_start_main (main=0x560380d91460, argc=1, argv=0x7ffecbda40e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffecbda40d8) at ../csu/libc-start.c:308 #34 0x0000560380d918de in _start () [Inferior 1 (process 10239) detached] SOFTWARE/OS VERSIONS Linux/KDE Plasma: Kubuntu 20.04 KDE Plasma Version: 5.18.5 KDE Frameworks Version: 5.68.0 Qt Version: 5.12.8 ADDITIONAL INFORMATION -- You are receiving this mail because: You are watching all bug changes.