Bug 513952

Application: kwin_wayland (6.5.4)

ApplicationNotResponding [ANR]: false
Qt Version: 6.9.3
Frameworks Version: 6.21.0
Operating System: Linux 6.17.13-200.fc42.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora Linux 42 (Workstation Edition)"
DrKonqi: 6.5.4 [CoredumpBackend]

-- Information about the crash:
As you'll see from the stackdumps, I use nouveau.  When I hibernated the PC, the screen went black fairly quickly but it took several minutes for the PC's fan to shut off.  When I tapped the Ctrl key to bring the machine back up, the fan came on quickly but the screens stayed black and the keyvoard's Caps Lock light didn't come on when I tapped the Caps Lock key.

I don't normally hibernate the machine, so I don't know how many times out of ten this would happen if I tried it again.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: KWin (kwin_wayland), signal: Segmentation fault


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

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

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

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

warning: Can't open file /home/msl/.cache/plasma_theme_default.kcache (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:unknown-usage:QtQml (deleted) during file-backed mapping note processing

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

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

warning: Can't open file /memfd:JSGCHeap:QtQml (deleted) during file-backed mapping note processing
[New LWP 3200]
[New LWP 3234]
[New LWP 4271]
[New LWP 3273]
[New LWP 3287]
[New LWP 3266]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/kwin_wayland --wayland-fd 7 --socket wayland-0 --xwayland-fd 8 --xwayland-fd 9 --xwayland-display :0 --xwayland-xauthority /run/user/1000/xauth_mVxrvH --xwayland'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f2d60882e5c in __pthread_kill_implementation () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7f2d5aa55300 (LWP 3200))]
[Current thread is 1 (Thread 0x7f2d5aa55300 (LWP 3200))]

Thread 6 (Thread 0x7f2d4889b6c0 (LWP 3266)):
#0  0x00007f2d60889422 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f2d6087d71c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f2d6087dd8c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f2d6088045e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f2d4914ec1d in cnd_wait () from /lib64/libgallium-25.1.9.so
#5  0x00007f2d491082fc in util_queue_thread_func () from /lib64/libgallium-25.1.9.so
#6  0x00007f2d4914eb4c in impl_thrd_routine () from /lib64/libgallium-25.1.9.so
#7  0x00007f2d60880f14 in start_thread () from /lib64/libc.so.6
#8  0x00007f2d609042ec in __clone3 () from /lib64/libc.so.6

Thread 5 (Thread 0x7f2d3ad7e6c0 (LWP 3287)):
#0  0x00007f2d60889422 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f2d6087d71c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f2d6087d764 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f2d608f7786 in ppoll () from /lib64/libc.so.6
#4  0x00007f2d5fa59890 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f2d5fa59953 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f2d612104ed in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007f2d60f07243 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007f2d6102844d in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007f2d610c6166 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#10 0x00007f2d60880f14 in start_thread () from /lib64/libc.so.6
#11 0x00007f2d609042ec in __clone3 () from /lib64/libc.so.6

Thread 4 (Thread 0x7f2d3b7ff6c0 (LWP 3273)):
#0  0x00007f2d60889422 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f2d6087d71c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f2d6087d764 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f2d608f7786 in ppoll () from /lib64/libc.so.6
#4  0x00007f2d5fa59890 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f2d5fa59953 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f2d612104ed in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007f2d60f07243 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007f2d6102844d in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007f2d610c6166 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#10 0x00007f2d60880f14 in start_thread () from /lib64/libc.so.6
#11 0x00007f2d609042ec in __clone3 () from /lib64/libc.so.6

Thread 3 (Thread 0x7f2d1d9c46c0 (LWP 4271)):
#0  0x00007f2d60889422 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f2d6087d71c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f2d6087d764 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f2d608f7786 in ppoll () from /lib64/libc.so.6
#4  0x00007f2d5fa59890 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f2d5fa59953 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f2d612104ed in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007f2d60f07243 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007f2d6102844d in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007f2d610c6166 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#10 0x00007f2d60880f14 in start_thread () from /lib64/libc.so.6
#11 0x00007f2d609042ec in __clone3 () from /lib64/libc.so.6

Thread 2 (Thread 0x7f2d4c9ff6c0 (LWP 3234)):
#0  0x00007f2d60889422 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f2d6087d71c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f2d6087d764 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f2d608f7786 in ppoll () from /lib64/libc.so.6
#4  0x00007f2d5fa59890 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f2d5fa59953 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f2d612104ed in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007f2d60f07243 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007f2d6102844d in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007f2d6154c721 in QDBusConnectionManager::run() () from /lib64/libQt6DBus.so.6
#10 0x00007f2d610c6166 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007f2d60880f14 in start_thread () from /lib64/libc.so.6
#12 0x00007f2d609042ec in __clone3 () from /lib64/libc.so.6

Thread 1 (Thread 0x7f2d5aa55300 (LWP 3200)):
[KCrash Handler]
#4  0x00007f2d496dee0f in pushbuf_dump () from /lib64/libgallium-25.1.9.so
#5  0x00007f2d496e160d in pushbuf_flush.isra () from /lib64/libgallium-25.1.9.so
#6  0x00007f2d496e1f25 in nouveau_pushbuf_kick () from /lib64/libgallium-25.1.9.so
#7  0x00007f2d49e41c18 in nvc0_flush () from /lib64/libgallium-25.1.9.so
#8  0x00007f2d48cbbaac in st_glFlush () from /lib64/libgallium-25.1.9.so
#9  0x00007f2d63d73c41 in KWin::EglGbmLayerSurface::endRendering(QRegion const&, KWin::OutputFrame*) () from /lib64/libkwin.so.6
#10 0x00007f2d63a6b757 in KWin::renderLayer(KWin::RenderView*, KWin::Output*, std::shared_ptr<KWin::OutputFrame> const&, QRegion const&) [clone .isra.0] () from /lib64/libkwin.so.6
#11 0x00007f2d63a6edab in KWin::Compositor::composite(KWin::RenderLoop*) () from /lib64/libkwin.so.6
#12 0x00007f2d60f654ba in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt6Core.so.6
#13 0x00007f2d63a9417a in KWin::RenderLoop::frameRequested(KWin::RenderLoop*) () from /lib64/libkwin.so.6
#14 0x00007f2d60f560b5 in QObject::event(QEvent*) () from /lib64/libQt6Core.so.6
#15 0x00007f2d6223d97f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#16 0x00007f2d60ef9678 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#17 0x00007f2d610c47f8 in QTimerInfoList::activateTimers() () from /lib64/libQt6Core.so.6
#18 0x00007f2d610c91ab in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#19 0x00007f2d61cdfaa2 in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Gui.so.6
#20 0x00007f2d60f07243 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#21 0x00007f2d60f02b59 in QCoreApplication::exec() () from /lib64/libQt6Core.so.6
#22 0x000055671c3338e3 in main ()

Reported using DrKonqi