Bug 495614

Summary:	Discover crashes in QSGNode::~QSGNode()
Product:	[Applications] Discover	Reporter:	Rodrigo <rodhos92>
Component:	discover	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED UNMAINTAINED
Severity:	crash	CC:	aleixpol, nate, sitter
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	5.27.11
Target Milestone:	---
Platform:	Kubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Rodrigo 2024-10-31 00:39:20 UTC

Application: plasma-discover (5.27.11)

Qt Version: 5.15.13
Frameworks Version: 5.115.0
Operating System: Linux 6.8.0-47-generic x86_64
Windowing System: X11
Distribution: Ubuntu 24.04.1 LTS
DrKonqi: 5.27.11 [KCrashBackend]

-- Information about the crash:
Discover randomly and constantly crashes after opening or after looking for updates or searching for apps.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault

[KCrash Handler]
#4  0x00007b39905a2d4c in QSGNode::~QSGNode() () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007b39906f42b6 in ??? () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007b39905a2d19 in QSGNode::destroy() () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007b39905a2d43 in QSGNode::~QSGNode() () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007b39905a2f25 in QSGTransformNode::~QSGTransformNode() () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007b399067b57e in QQuickWindowPrivate::cleanupNodes() () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007b399067ea73 in QQuickWindowPrivate::updateDirtyNodes() () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007b3990680674 in QQuickWindowPrivate::syncSceneGraph() () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007b399061931f in ??? () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007b399061afec in ??? () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007b399061c007 in ??? () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007b398eedb674 in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007b398e69ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#17 0x00007b398e729c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 7 (Thread 0x7b3927e006c0 (LWP 31211) "QNetworkAccessM"):
#1  0x00007b398e6ec96d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/sysv/linux/clock_gettime.c:42
#2  0x00007b398f134b79 in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007b398f1332b5 in QTimerInfoList::updateCurrentTime() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007b398f1338fa in QTimerInfoList::timerWait(timespec&) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007b398f13501d in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007b398d91489a in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007b398d9735ab in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007b398d913a53 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007b398f135296 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007b398f0d6a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007b398eeda36b in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007b398eedb674 in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007b398e69ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007b398e729c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 6 (Thread 0x7b3958c006c0 (LWP 31259) "QNetworkAccessM"):
#1  0x00007b398d97366e in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007b398d913a53 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007b398f135296 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007b398f0d6a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007b398eeda36b in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007b398eedb674 in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007b398e69ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007b398e729c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 5 (Thread 0x7b39258006c0 (LWP 31773) "QNetworkAccessM"):
#1  0x00007b398e6ec96d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/sysv/linux/clock_gettime.c:42
#2  0x00007b398f134b79 in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007b398f1332b5 in QTimerInfoList::updateCurrentTime() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007b398f1338fa in QTimerInfoList::timerWait(timespec&) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007b398f13501d in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007b398d91489a in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007b398d9735ab in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007b398d913a53 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007b398f135296 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007b398f0d6a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007b398eeda36b in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007b398eedb674 in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007b398e69ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007b398e729c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 4 (Thread 0x7b394fe006c0 (LWP 31801) "QQuickPixmapRea"):
#1  0x00007b398e6ec96d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/sysv/linux/clock_gettime.c:42
#2  0x00007b398f134b79 in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007b398f1332b5 in QTimerInfoList::updateCurrentTime() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007b398f1338fa in QTimerInfoList::timerWait(timespec&) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007b398f13561d in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007b398d91489a in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007b398d9735ab in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007b398d913a53 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007b398f135296 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007b398f0d6a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007b398eeda36b in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007b3990561b9f in ??? () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007b398eedb674 in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007b398e69ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#15 0x00007b398e729c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 3 (Thread 0x7b3924e006c0 (LWP 31802) "QNetworkAccessM"):
#1  0x00007b398e6ec96d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/sysv/linux/clock_gettime.c:42
#2  0x00007b398f134b79 in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007b398f1332b5 in QTimerInfoList::updateCurrentTime() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007b398f1338fa in QTimerInfoList::timerWait(timespec&) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007b398f13561d in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007b398d91489a in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007b398d9735ab in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007b398d913a53 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007b398f135296 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007b398f0d6a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007b398eeda36b in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007b398eedb674 in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007b398e69ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#14 0x00007b398e729c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 2 (Thread 0x7b390e0006c0 (LWP 31804) "QNetworkAccessM"):
#1  0x00007b398d97366e in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007b398d913a53 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007b398f135296 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007b398f0d6a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007b398eeda36b in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007b398eedb674 in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007b398e69ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
#8  0x00007b398e729c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 1 (Thread 0x7b398a78f0c0 (LWP 31166) "plasma-discover"):
#1  __futex_abstimed_wait_common (cancel=true, private=31545, abstime=0x0, clockid=0, expected=0, futex_word=0x6047856b56f4) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x6047856b56f4, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007b398e69b7dd in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x6047856b56a0, cond=0x6047856b56c8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x6047856b56c8, mutex=0x6047856b56a0) at ./nptl/pthread_cond_wait.c:627
#5  0x00007b398eee178c in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007b399061de1d in ??? () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007b399068f463 in QQuickWindow::event(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007b3990b6bd45 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007b398f0d8118 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007b398f533ecc in QPlatformWindow::windowEvent(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Gui.so.5
#11 0x00007b3990b73491 in QApplication::notify(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007b398f0d8118 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007b398f1345ab in QTimerInfoList::activateTimers() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007b398f134ed9 in ??? () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007b398d9145b5 in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007b398d973717 in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007b398d913a53 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007b398f135279 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007b398f0d6a7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007b398f0df3e8 in QCoreApplication::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00006047820d0c71 in ??? ()
#22 0x00007b398e62a1ca in __libc_start_call_main (main=main@entry=0x6047820d0360, argc=argc@entry=1, argv=argv@entry=0x7ffefec83c38) at ../sysdeps/nptl/libc_start_call_main.h:58
#23 0x00007b398e62a28b in __libc_start_main_impl (main=0x6047820d0360, argc=1, argv=0x7ffefec83c38, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffefec83c28) at ../csu/libc-start.c:360
#24 0x00006047820d16a5 in ??? ()
[Inferior 1 (process 31166) detached]

The reporter indicates this bug may be a duplicate of or related to bug 485003, bug 492608.

Reported using DrKonqi

Comment 1 Harald Sitter 2025-01-25 12:36:30 UTC

Looks like a problem inside Qt5, which unfortunately is no longer supported really. Probably best to upgrade to a supported version or ask Ubuntu for support.