Application: plasmashell (6.6.4) (Compiled from sources) ApplicationNotResponding [ANR]: false Qt Version: 6.10.2 Frameworks Version: 6.25.0 Operating System: Linux 6.17.0-22-generic x86_64 Windowing System: Wayland Distribution: KDE neon User Edition DrKonqi: 6.6.4 [CoredumpBackend] -- Information about the crash: Product: plasmashell Component: general Version: 6.6.4 Platform: KDE Neon OS/Architecture: Linux (x86_64) Plasmashell aborted unexpectedly during a session on KDE Neon. The crash appears to be triggered by the `QSGRenderThread` failing to access various QML and Mesa shader cache files that were marked as "deleted" on disk. The backtrace indicates the crash occurs in `__pthread_kill_implementation` via `SIGABRT`. Multiple threads are hanging in `__futex_abstimed_wait_common64` within the Gallium/Mesa driver (`libgallium-25.2.8`). Plasmashell terminates with a `SIGABRT`. The desktop environment (panels, wallpaper, and widgets) disappears. Plasmashell should handle missing or "deleted" cache files gracefully by regenerating them instead of aborting the process. Graphics Driver: Mesa 25.2.8 (Gallium) Hardware: Dell XPS 13 9370 (Intel i915) Operating System: KDE Neon (User Edition) Kernel: 6.17.0-22-generic The reporter is unsure if this crash is reproducible. -- Backtrace (Reduced): #6 __pthread_kill_implementation (no_tid=0, signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:44 #7 __pthread_kill_internal (signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:78 #8 __GI___pthread_kill (threadid=<optimized out>, signo=6) at ./nptl/pthread_kill.c:89 #9 0x00007930e3c4527e in __GI_raise (sig=6) at ../sysdeps/posix/raise.c:26 #10 0x00007930e3c288ff in __GI_abort () at ./stdlib/abort.c:79 #11 0x00007930e4961a31 in qAbort () at /workspace/build/src/corelib/global/qassert.cpp:46 #12 qt_maybe_message_fatal<QString&> (message=..., context=..., msgType=QtFatalMsg) at /workspace/build/src/corelib/global/qlogging.cpp:2166 [...] #14 0x00007930e4963310 in QMessageLogger::fatal (this=<optimized out>, msg=0x7930e4675c00 "ASSERT: \"%s\" in file %s, line %d") at /workspace/build/src/corelib/global/qlogging.cpp:901 #15 0x00007930e494dc11 in qt_assert (assertion=<optimized out>, file=<optimized out>, line=<optimized out>) at /workspace/build/src/corelib/global/qassert.cpp:113 #16 0x000079307182c993 in QString::size() const::{lambda()#1}::operator()() const (__closure=0x7ffee261cb18) at /usr/include/x86_64-linux-gnu/qt6/QtCore/qstring.h:241 #17 0x000079307182c9d7 in QString::size (this=0x5bb1f1fa2bb8) at /usr/include/x86_64-linux-gnu/qt6/QtCore/qstring.h:241 #18 0x000079307182ca12 in QString::isEmpty (this=0x5bb1f1fa2bb8) at /usr/include/x86_64-linux-gnu/qt6/QtCore/qstring.h:249 #19 0x00007930718750b0 in Handler::requestScanInternal(_ZN7Handler19requestScanInternalERK7QString.Frame *) (frame_ptr=0x5bb1f45999e0) at /workspace/build/libs/handler.cpp:698 #20 0x000079307187cceb in std::__n4861::coroutine_handle<void>::resume (this=0x5bb1f2905f40) at /usr/include/c++/13/coroutine:135 #21 0x00007930718892bc in QCoro::detail::QCoroDBusPendingReply<>::WaitForFinishedOperation::await_suspend(std::__n4861::coroutine_handle<void>)::{lambda(auto:1*)#1}::operator()<QDBusPendingCallWatcher>(QDBusPendingCallWatcher*) (__closure=0x5bb1f2905f40, watcher=0x5bb1f34a5dc0) at /usr/include/qcoro6/qcoro/qcorodbuspendingreply.h:43 #22 0x00007930718a02b3 in QtPrivate::FunctorCall<std::integer_sequence<unsigned long, 0ul>, QtPrivate::List<QDBusPendingCallWatcher*>, void, QCoro::detail::QCoroDBusPendingReply<>::WaitForFinishedOperation::await_suspend(std::__n4861::coroutine_handle<void>)::{lambda(auto:1*)#1}>::call(QCoro::detail::QCoroDBusPendingReply<>::WaitForFinishedOperation::await_suspend(std::__n4861::coroutine_handle<void>)::{lambda(auto:1*)#1}&, void**)::{lambda()#1}::operator()() const (__closure=0x7ffee261cc80) at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:116 Reported using DrKonqi This report was filed against 'kde' because the product 'plasmashell' could not be located in Bugzilla. Add it to drkonqi's mappings file!
Created attachment 192006 [details] New crash information added by DrKonqi DrKonqi auto-attaching complete backtrace.
QCoro again.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-nm/-/merge_requests/576
Git commit ca844683ae902fd90614adf888032a6047955884 by David Edmundson. Committed on 30/05/2026 at 06:29. Pushed by davidedmundson into branch 'master'. Avoid use of references across a co_await It's common practice to pass a reference to a string into a method, even though copying strings in Qt is extremely fast. This is only fine for the first invocation, after a co_await it ends up being a dangling reference. This would crash on the second iteration of the loop. M +4 -1 libs/handler.cpp https://invent.kde.org/plasma/plasma-nm/-/commit/ca844683ae902fd90614adf888032a6047955884
Git commit 00390c53a12394233ab6b79f94a2408fe5c8c85a by David Edmundson. Committed on 30/05/2026 at 10:41. Pushed by davidedmundson into branch 'Plasma/6.7'. Avoid use of references across a co_await It's common practice to pass a reference to a string into a method, even though copying strings in Qt is extremely fast. This is only fine for the first invocation, after a co_await it ends up being a dangling reference. This would crash on the second iteration of the loop. (cherry picked from commit ca844683ae902fd90614adf888032a6047955884) Co-authored-by: David Edmundson <kde@davidedmundson.co.uk> M +4 -1 libs/handler.cpp https://invent.kde.org/plasma/plasma-nm/-/commit/00390c53a12394233ab6b79f94a2408fe5c8c85a
Git commit 0ecb8a41c4bc37d128625b395a6ce4709df79a71 by Nate Graham. Committed on 04/06/2026 at 15:36. Pushed by ngraham into branch 'Plasma/6.6'. Avoid use of references across a co_await It's common practice to pass a reference to a string into a method, even though copying strings in Qt is extremely fast. This is only fine for the first invocation, after a co_await it ends up being a dangling reference. This would crash on the second iteration of the loop. (cherry picked from commit ca844683ae902fd90614adf888032a6047955884) Co-authored-by: David Edmundson <kde@davidedmundson.co.uk> M +4 -1 libs/handler.cpp https://invent.kde.org/plasma/plasma-nm/-/commit/0ecb8a41c4bc37d128625b395a6ce4709df79a71