[konsole] [Bug 499495] New: Konsole Crashing when connecting external screens

Roman Pletka bugzilla_noreply at kde.org
Tue Feb 4 09:17:11 GMT 2025 

https://bugs.kde.org/show_bug.cgi?id=499495

            Bug ID: 499495
           Summary: Konsole Crashing when connecting external screens
    Classification: Applications
           Product: konsole
           Version: 24.12.1
          Platform: Fedora RPMs
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: konsole-devel at kde.org
          Reporter: roman at pletka.ch
  Target Milestone: ---

Application: konsole (24.12.1)

ApplicationNotResponding [ANR]: false
Qt Version: 6.8.1
Frameworks Version: 6.10.0
Operating System: Linux 6.12.10-100.fc40.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora Linux 40 (Workstation Edition)"
DrKonqi: 6.2.5 [CoredumpBackend]

-- Information about the crash:
Connected 2 dasy-chained external displays over USB-C. Then konsole crashed. I
am running qt 6.8.1 and konsole 24.12.1.

Unlike mentioned in https://bugs.kde.org/show_bug.cgi?id=492576 this issue is
not fixed in qt 6.8.1

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Konsole (konsole), signal: Segmentation fault


warning: Can't open file /memfd:wayland-shm (deleted) during file-backed
mapping note processing

warning: Can't open file anon_inode:i915.gem during file-backed mapping note
processing
[New LWP 4593]
[New LWP 4617]
[New LWP 4650]
[New LWP 451078]
[New LWP 4649]
[New LWP 451061]
[New LWP 4751]
[New LWP 451057]
[New LWP 451058]
[New LWP 451059]
[New LWP 451060]
[New LWP 4749]
[New LWP 451056]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/konsole'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f84546a8014 in __pthread_kill_implementation () from
/lib64/libc.so.6
[Current thread is 1 (Thread 0x7f844d1c9600 (LWP 4593))]
Cannot QML trace cores :(
/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py:516: DeprecationWarning:
datetime.datetime.utcfromtimestamp() is deprecated and scheduled for removal in
a future version. Use timezone-aware objects to represent datetimes in UTC:
datetime.datetime.fromtimestamp(timestamp, datetime.UTC).
  boot_time =
datetime.utcfromtimestamp(psutil.boot_time()).strftime('%Y-%m-%dT%H:%M:%S')
/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py:533: DeprecationWarning:
datetime.datetime.utcnow() is deprecated and scheduled for removal in a future
version. Use timezone-aware objects to represent datetimes in UTC:
datetime.datetime.now(datetime.UTC).
  'timestamp': datetime.utcnow().isoformat(),
[Current thread is 1 (Thread 0x7f844d1c9600 (LWP 4593))]

Thread 13 (Thread 0x7f8412bf06c0 (LWP 451056)):
#0  0x00007f84546a2729 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f84546a54e2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f8454f78c57 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib64/libQt6Core.so.6
#3  0x00007f8454f75983 in QThreadPoolThread::run() () from
/lib64/libQt6Core.so.6
#4  0x00007f8454f6c1c7 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#5  0x00007f84546a6057 in start_thread () from /lib64/libc.so.6
#6  0x00007f8454729f4c in clone3 () from /lib64/libc.so.6

Thread 12 (Thread 0x7f843cf4f6c0 (LWP 4749)):
#0  0x00007f84546a2729 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f84546a5179 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f84286a893d in cnd_wait () from /usr/lib64/dri/iris_dri.so
#3  0x00007f842868570b in util_queue_thread_func () from
/usr/lib64/dri/iris_dri.so
#4  0x00007f84286a886c in impl_thrd_routine () from /usr/lib64/dri/iris_dri.so
#5  0x00007f84546a6057 in start_thread () from /lib64/libc.so.6
#6  0x00007f8454729f4c in clone3 () from /lib64/libc.so.6

Thread 11 (Thread 0x7f8403fff6c0 (LWP 451060)):
#0  0x00007f84546a2729 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f84546a54e2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f8454f78c57 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib64/libQt6Core.so.6
#3  0x00007f8454f75983 in QThreadPoolThread::run() () from
/lib64/libQt6Core.so.6
#4  0x00007f8454f6c1c7 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#5  0x00007f84546a6057 in start_thread () from /lib64/libc.so.6
#6  0x00007f8454729f4c in clone3 () from /lib64/libc.so.6

Thread 10 (Thread 0x7f84123ef6c0 (LWP 451059)):
#0  0x00007f84546a2729 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f84546a54e2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f8454f78c57 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib64/libQt6Core.so.6
#3  0x00007f8454f75983 in QThreadPoolThread::run() () from
/lib64/libQt6Core.so.6
#4  0x00007f8454f6c1c7 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#5  0x00007f84546a6057 in start_thread () from /lib64/libc.so.6
#6  0x00007f8454729f4c in clone3 () from /lib64/libc.so.6

Thread 9 (Thread 0x7f84037fe6c0 (LWP 451058)):
#0  0x00007f84546a2729 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f84546a54e2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f8454f78c57 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib64/libQt6Core.so.6
#3  0x00007f8454f75983 in QThreadPoolThread::run() () from
/lib64/libQt6Core.so.6
#4  0x00007f8454f6c1c7 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#5  0x00007f84546a6057 in start_thread () from /lib64/libc.so.6
#6  0x00007f8454729f4c in clone3 () from /lib64/libc.so.6

Thread 8 (Thread 0x7f8420bfe6c0 (LWP 451057)):
#0  0x00007f84546a2729 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f84546a54e2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f8454f78c57 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib64/libQt6Core.so.6
#3  0x00007f8454f75983 in QThreadPoolThread::run() () from
/lib64/libQt6Core.so.6
#4  0x00007f8454f6c1c7 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#5  0x00007f84546a6057 in start_thread () from /lib64/libc.so.6
#6  0x00007f8454729f4c in clone3 () from /lib64/libc.so.6

Thread 7 (Thread 0x7f84213ff6c0 (LWP 4751)):
#0  0x00007f84546a2729 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f84546a5179 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f84286a893d in cnd_wait () from /usr/lib64/dri/iris_dri.so
#3  0x00007f842868570b in util_queue_thread_func () from
/usr/lib64/dri/iris_dri.so
#4  0x00007f84286a886c in impl_thrd_routine () from /usr/lib64/dri/iris_dri.so
#5  0x00007f84546a6057 in start_thread () from /lib64/libc.so.6
#6  0x00007f8454729f4c in clone3 () from /lib64/libc.so.6

Thread 6 (Thread 0x7f8400dff6c0 (LWP 451061)):
#0  0x00007f84546a2729 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f84546a54e2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f8454f78c57 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib64/libQt6Core.so.6
#3  0x00007f8454f75983 in QThreadPoolThread::run() () from
/lib64/libQt6Core.so.6
#4  0x00007f8454f6c1c7 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#5  0x00007f84546a6057 in start_thread () from /lib64/libc.so.6
#6  0x00007f8454729f4c in clone3 () from /lib64/libc.so.6

Thread 5 (Thread 0x7f843e7ff6c0 (LWP 4649)):
#0  0x00007f84546a2729 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f84546a5179 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f8454f78cd7 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib64/libQt6Core.so.6
#3  0x00007f84511046ce in QtWaylandClient::EventThread::run() () from
/lib64/libQt6WaylandClient.so.6
#4  0x00007f8454f6c1c7 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#5  0x00007f84546a6057 in start_thread () from /lib64/libc.so.6
#6  0x00007f8454729f4c in clone3 () from /lib64/libc.so.6

Thread 4 (Thread 0x7f83f8f3f6c0 (LWP 451078)):
#0  0x00007f84546a2729 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f84546a54e2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f8454f78c57 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib64/libQt6Core.so.6
#3  0x00007f8454f75983 in QThreadPoolThread::run() () from
/lib64/libQt6Core.so.6
#4  0x00007f8454f6c1c7 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#5  0x00007f84546a6057 in start_thread () from /lib64/libc.so.6
#6  0x00007f8454729f4c in clone3 () from /lib64/libc.so.6

Thread 3 (Thread 0x7f843dffe6c0 (LWP 4650)):
#0  0x00007f845471c1bd in poll () from /lib64/libc.so.6
#1  0x00007f8451104735 in QtWaylandClient::EventThread::run() () from
/lib64/libQt6WaylandClient.so.6
#2  0x00007f8454f6c1c7 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#3  0x00007f84546a6057 in start_thread () from /lib64/libc.so.6
#4  0x00007f8454729f4c in clone3 () from /lib64/libc.so.6

Thread 2 (Thread 0x7f843f5ff6c0 (LWP 4617)):
#0  0x00007f845471c1bd in poll () from /lib64/libc.so.6
#1  0x00007f845202bc34 in g_main_context_iterate_unlocked.isra () from
/lib64/libglib-2.0.so.0
#2  0x00007f8451fcb383 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007f84550a1333 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt6Core.so.6
#4  0x00007f8454db5c3b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt6Core.so.6
#5  0x00007f8454eced45 in QThread::exec() () from /lib64/libQt6Core.so.6
#6  0x00007f845396d581 in QDBusConnectionManager::run() () from
/lib64/libQt6DBus.so.6
#7  0x00007f8454f6c1c7 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#8  0x00007f84546a6057 in start_thread () from /lib64/libc.so.6
#9  0x00007f8454729f4c in clone3 () from /lib64/libc.so.6

Thread 1 (Thread 0x7f844d1c9600 (LWP 4593)):
[KCrash Handler]
#4  0x000055b180813880 in ?? ()
#5  0x00007f845566743e in
QWindowSystemInterface::handleScreenRemoved(QPlatformScreen*) () from
/lib64/libQt6Gui.so.6
#6  0x00007f845110f104 in
QtWaylandClient::QWaylandDisplay::handleScreenInitialized(QtWaylandClient::QWaylandScreen*)
() from /lib64/libQt6WaylandClient.so.6
#7  0x00007f8451132803 in QtWaylandClient::QWaylandScreen::maybeInitialize() ()
from /lib64/libQt6WaylandClient.so.6
#8  0x00007f844e3ac056 in ffi_call_unix64 () at ../src/x86/unix64.S:104
#9  0x00007f844e3a86a0 in ffi_call_int (cif=cif at entry=0x7fffb3740c50,
fn=<optimized out>, rvalue=<optimized out>, avalue=<optimized out>,
closure=closure at entry=0x0) at ../src/x86/ffi64.c:673
#10 0x00007f844e3ab4ee in ffi_call (cif=cif at entry=0x7fffb3740c50, fn=<optimized
out>, rvalue=rvalue at entry=0x0, avalue=avalue at entry=0x7fffb3740d20) at
../src/x86/ffi64.c:710
#11 0x00007f84516ca10e in wl_closure_invoke
(closure=closure at entry=0x55b17f4b8c80, target=<optimized out>,
target at entry=0x55b1808533e0, opcode=opcode at entry=2, data=<optimized out>,
flags=1) at ../src/connection.c:1228
#12 0x00007f84516ca979 in dispatch_event (display=0x55b17f2572d0,
queue=0x55b17f2573c8) at ../src/wayland-client.c:1670
#13 0x00007f84516cad73 in dispatch_queue (display=0x55b17f2572d0,
queue=0x55b17f2573c8) at ../src/wayland-client.c:1816
#14 wl_display_dispatch_queue_pending (display=0x55b17f2572d0,
queue=0x55b17f2573c8) at ../src/wayland-client.c:2058
#15 0x00007f8451107ed6 in
QtWaylandClient::QWaylandDisplay::blockingReadEvents() () from
/lib64/libQt6WaylandClient.so.6
#16 0x00007f8451133cca in
QtWaylandClient::QWaylandShmBackingStore::recreateBackBufferIfNeeded() () from
/lib64/libQt6WaylandClient.so.6
#17 0x00007f84511342d2 in
QtWaylandClient::QWaylandShmBackingStore::beginPaint(QRegion const&) () from
/lib64/libQt6WaylandClient.so.6
#18 0x00007f84556803bb in QBackingStore::beginPaint(QRegion const&) () from
/lib64/libQt6Gui.so.6
#19 0x00007f8455fffd4b in QWidgetRepaintManager::paintAndFlush() () from
/lib64/libQt6Widgets.so.6
#20 0x00007f8455ff386a in QWidget::event(QEvent*) () from
/lib64/libQt6Widgets.so.6
#21 0x00007f8456bdea10 in KXmlGuiWindow::event(QEvent*) () from
/lib64/libKF6XmlGui.so.6
#22 0x00007f8455f8d678 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt6Widgets.so.6
#23 0x00007f8454da73f8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt6Core.so.6
#24 0x00007f8454dab125 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /lib64/libQt6Core.so.6
#25 0x00007f84550a1bdf in postEventSourceDispatch(_GSource*, int (*)(void*),
void*) () from /lib64/libQt6Core.so.6
#26 0x00007f8451fc9e8c in g_main_context_dispatch_unlocked.lto_priv () from
/lib64/libglib-2.0.so.0
#27 0x00007f845202bc98 in g_main_context_iterate_unlocked.isra () from
/lib64/libglib-2.0.so.0
#28 0x00007f8451fcb383 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#29 0x00007f84550a1333 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt6Core.so.6
#30 0x00007f8454db5c3b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt6Core.so.6
#31 0x00007f8454db13ee in QCoreApplication::exec() () from
/lib64/libQt6Core.so.6
#32 0x000055b140a3824c in main ()

Reported using DrKonqi

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