Bug 503983

Summary: Gwenview crashed while dragging a thumbnail
Product: [Applications] gwenview Reporter: Bernie Innocenti <bernie>
Component: generalAssignee: Gwenview Bugs <gwenview-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: crash CC: freekngdom, idontfeelcomfygivingyoumyemail
Priority: NOR Keywords: drkonqi
Version First Reported In: 25.04.0   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report: https://crash-reports.kde.org/organizations/kde/issues/177459/events/26fb7c5d353d4deda8e6c11c8522273e/

Description Bernie Innocenti 2025-05-10 03:43:05 UTC 
Application: gwenview (25.04.0)

ApplicationNotResponding [ANR]: false
Qt Version: 6.9.0
Frameworks Version: 6.14.0
Operating System: Linux 6.15.0-0.rc3.20250425git02ddfb981de8.32.fc43.x86_64 x86_64
Windowing System: Wayland
Distribution: Fedora Linux 43 (KDE Plasma Desktop Edition Prerelease)
DrKonqi: 6.3.5 [CoredumpBackend]

-- Information about the crash:
I'm not sure how I caused this: I think I just accidentally dragged one of the thumbnails on the sidebar onto another, or to the document area.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Gwenview (gwenview), signal: Segmentation fault


This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.fedoraproject.org/>
Enable debuginfod for this session? (y or [n]) [answered N; input not from terminal]
Debuginfod has been disabled.
To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.

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

warning: Can't open file /memfd:kwin-dmabuf-feedback-table (deleted) during file-backed mapping note processing

warning: Can't open file anon_inode:i915.gem during file-backed mapping note processing
[New LWP 251385]
[New LWP 251395]
[New LWP 251402]
[New LWP 251413]
[New LWP 251646]
[New LWP 251419]
[New LWP 251403]
[New LWP 251415]
[New LWP 251386]
[New LWP 251388]
[New LWP 251411]
[New LWP 251390]
[New LWP 251412]
[New LWP 251389]
[New LWP 251414]
[New LWP 251429]
[New LWP 251401]
[New LWP 251428]
[New LWP 251404]
[New LWP 251387]
[New LWP 251407]
[New LWP 251408]
[New LWP 251409]
[New LWP 251410]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/gwenview /home/bernie/Desktop/Screenshot_20250429_091504.png'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007ffff4c82c2c in __pthread_kill_implementation () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7fffee52eb40 (LWP 251385))]
Function(s) ^std::(move|forward|as_const|(__)?addressof) will be skipped when stepping.
Function(s) ^std::(shared|unique)_ptr<.*>::(get|operator) will be skipped when stepping.
Function(s) ^std::(basic_string|vector|array|deque|(forward_)?list|(unordered_|flat_)?(multi)?(map|set)|span)<.*>::(c?r?(begin|end)|front|back|data|size|empty) will be skipped when stepping.
Function(s) ^std::(basic_string|vector|array|deque|span)<.*>::operator.] will be skipped when stepping.
Cannot QML trace cores :(
/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py:547: 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:564: 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 0x7fffee52eb40 (LWP 251385))]

Thread 24 (Thread 0x7fffbdffb6c0 (LWP 251410)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c801de in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007fffe4d4549d in cnd_wait () at /lib64/libgallium-25.1.0.so
#5  0x00007fffe4cff3fc in util_queue_thread_func () at /lib64/libgallium-25.1.0.so
#6  0x00007fffe4d453cc in impl_thrd_routine () at /lib64/libgallium-25.1.0.so
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 23 (Thread 0x7fffbe7fc6c0 (LWP 251409)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c801de in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007fffe4d4549d in cnd_wait () at /lib64/libgallium-25.1.0.so
#5  0x00007fffe4cff3fc in util_queue_thread_func () at /lib64/libgallium-25.1.0.so
#6  0x00007fffe4d453cc in impl_thrd_routine () at /lib64/libgallium-25.1.0.so
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 22 (Thread 0x7fffbeffd6c0 (LWP 251408)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c801de in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007fffe4d4549d in cnd_wait () at /lib64/libgallium-25.1.0.so
#5  0x00007fffe4cff3fc in util_queue_thread_func () at /lib64/libgallium-25.1.0.so
#6  0x00007fffe4d453cc in impl_thrd_routine () at /lib64/libgallium-25.1.0.so
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 21 (Thread 0x7fffbf7fe6c0 (LWP 251407)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c801de in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007fffe4d4549d in cnd_wait () at /lib64/libgallium-25.1.0.so
#5  0x00007fffe4cff3fc in util_queue_thread_func () at /lib64/libgallium-25.1.0.so
#6  0x00007fffe4d453cc in impl_thrd_routine () at /lib64/libgallium-25.1.0.so
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 20 (Thread 0x7fffecdff6c0 (LWP 251387)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7d4e4 in __syscall_cancel () at /lib64/libc.so.6
#3  0x00007ffff4cf604e in poll () at /lib64/libc.so.6
#4  0x00007ffff44f1475 in QtWaylandClient::EventThread::run() () at /lib64/libQt6WaylandClient.so.6
#5  0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#6  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#7  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 19 (Thread 0x7fffbffff6c0 (LWP 251404)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c801de in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007fffe4d4549d in cnd_wait () at /lib64/libgallium-25.1.0.so
#5  0x00007fffe4cff3fc in util_queue_thread_func () at /lib64/libgallium-25.1.0.so
#6  0x00007fffe4d453cc in impl_thrd_routine () at /lib64/libgallium-25.1.0.so
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 18 (Thread 0x7fffb55806c0 (LWP 251428)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7d4e4 in __syscall_cancel () at /lib64/libc.so.6
#3  0x00007ffff4cf6576 in ppoll () at /lib64/libc.so.6
#4  0x00007ffff54baa71 in qt_safe_poll(pollfd*, unsigned long, QDeadlineTimer) () at /lib64/libQt6Core.so.6
#5  0x00007ffff3716662 in QNativeSocketEnginePrivate::nativeSelect(QDeadlineTimer, bool, bool, bool*, bool*) const () at /lib64/libQt6Network.so.6
#6  0x00007ffff368c933 in QNativeSocketEngine::waitForReadOrWrite(bool*, bool*, bool, bool, QDeadlineTimer, bool*) () at /lib64/libQt6Network.so.6
#7  0x00007ffff3688185 in QAbstractSocket::waitForReadyRead(int) () at /lib64/libQt6Network.so.6
#8  0x00007ffff765add8 in KIO::Connection::waitForIncomingTask(int) () at /lib64/libKF6KIOCore.so.6
#9  0x00007ffff769c1a9 in KIO::SlaveBase::dispatchLoop() [clone .constprop.0] () at /lib64/libKF6KIOCore.so.6
#10 0x00007ffff7731497 in KIO::WorkerThread::run() () at /lib64/libKF6KIOCore.so.6
#11 0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#12 0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#13 0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 17 (Thread 0x7fffddffb6c0 (LWP 251401)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c801de in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007fffe4d4549d in cnd_wait () at /lib64/libgallium-25.1.0.so
#5  0x00007fffe4cff3fc in util_queue_thread_func () at /lib64/libgallium-25.1.0.so
#6  0x00007fffe4d453cc in impl_thrd_routine () at /lib64/libgallium-25.1.0.so
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 16 (Thread 0x7fffb4d7f6c0 (LWP 251429)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7d4e4 in __syscall_cancel () at /lib64/libc.so.6
#3  0x00007ffff4cf6576 in ppoll () at /lib64/libc.so.6
#4  0x00007ffff54baa71 in qt_safe_poll(pollfd*, unsigned long, QDeadlineTimer) () at /lib64/libQt6Core.so.6
#5  0x00007ffff3716662 in QNativeSocketEnginePrivate::nativeSelect(QDeadlineTimer, bool, bool, bool*, bool*) const () at /lib64/libQt6Network.so.6
#6  0x00007ffff368c933 in QNativeSocketEngine::waitForReadOrWrite(bool*, bool*, bool, bool, QDeadlineTimer, bool*) () at /lib64/libQt6Network.so.6
#7  0x00007ffff3688185 in QAbstractSocket::waitForReadyRead(int) () at /lib64/libQt6Network.so.6
#8  0x00007ffff765add8 in KIO::Connection::waitForIncomingTask(int) () at /lib64/libKF6KIOCore.so.6
#9  0x00007ffff769c1a9 in KIO::SlaveBase::dispatchLoop() [clone .constprop.0] () at /lib64/libKF6KIOCore.so.6
#10 0x00007ffff7731497 in KIO::WorkerThread::run() () at /lib64/libKF6KIOCore.so.6
#11 0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#12 0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#13 0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 15 (Thread 0x7fffb77fe6c0 (LWP 251414)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c803e8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007ffff54cbaa6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt6Core.so.6
#5  0x00007ffff54c8777 in QThreadPoolThread::run() () at /lib64/libQt6Core.so.6
#6  0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 14 (Thread 0x7fffdffff6c0 (LWP 251389)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c801de in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007fffe4d4549d in cnd_wait () at /lib64/libgallium-25.1.0.so
#5  0x00007fffe4cff3fc in util_queue_thread_func () at /lib64/libgallium-25.1.0.so
#6  0x00007fffe4d453cc in impl_thrd_routine () at /lib64/libgallium-25.1.0.so
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 13 (Thread 0x7fffbcff96c0 (LWP 251412)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c803e8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007ffff54cbaa6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt6Core.so.6
#5  0x00007ffff54c8777 in QThreadPoolThread::run() () at /lib64/libQt6Core.so.6
#6  0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 12 (Thread 0x7fffdf7fe6c0 (LWP 251390)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c801de in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007fffe4d4549d in cnd_wait () at /lib64/libgallium-25.1.0.so
#5  0x00007fffe4cff3fc in util_queue_thread_func () at /lib64/libgallium-25.1.0.so
#6  0x00007fffe4d453cc in impl_thrd_routine () at /lib64/libgallium-25.1.0.so
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 11 (Thread 0x7fffbd7fa6c0 (LWP 251411)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c803e8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007ffff54cbaa6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt6Core.so.6
#5  0x00007ffff54c8777 in QThreadPoolThread::run() () at /lib64/libQt6Core.so.6
#6  0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 10 (Thread 0x7fffe7fff6c0 (LWP 251388)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7d4e4 in __syscall_cancel () at /lib64/libc.so.6
#3  0x00007ffff4cf604e in poll () at /lib64/libc.so.6
#4  0x00007ffff44f1475 in QtWaylandClient::EventThread::run() () at /lib64/libQt6WaylandClient.so.6
#5  0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#6  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#7  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 9 (Thread 0x7fffee4bd6c0 (LWP 251386)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7d4e4 in __syscall_cancel () at /lib64/libc.so.6
#3  0x00007ffff4cf6576 in ppoll () at /lib64/libc.so.6
#4  0x00007ffff26f5210 in g_main_context_iterate_unlocked.isra () at /lib64/libglib-2.0.so.0
#5  0x00007ffff26f52d3 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#6  0x00007ffff55ff56d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt6Core.so.6
#7  0x00007ffff5303783 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt6Core.so.6
#8  0x00007ffff54217fd in QThread::exec() () at /lib64/libQt6Core.so.6
#9  0x00007ffff594e901 in QDBusConnectionManager::run() () at /lib64/libQt6DBus.so.6
#10 0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#11 0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#12 0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 8 (Thread 0x7fffb6ffd6c0 (LWP 251415)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c803e8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007ffff54cbaa6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt6Core.so.6
#5  0x00007ffff54c8777 in QThreadPoolThread::run() () at /lib64/libQt6Core.so.6
#6  0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 7 (Thread 0x7fffccdff6c0 (LWP 251403)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c801de in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007fffe4d4549d in cnd_wait () at /lib64/libgallium-25.1.0.so
#5  0x00007fffe4cff3fc in util_queue_thread_func () at /lib64/libgallium-25.1.0.so
#6  0x00007fffe4d453cc in impl_thrd_routine () at /lib64/libgallium-25.1.0.so
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 6 (Thread 0x7fffb67fc6c0 (LWP 251419)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c803e8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007ffff54cbaa6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt6Core.so.6
#5  0x00007ffff54c8777 in QThreadPoolThread::run() () at /lib64/libQt6Core.so.6
#6  0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 5 (Thread 0x7fffde7fc6c0 (LWP 251646)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c803e8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007ffff54cbaa6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt6Core.so.6
#5  0x00007ffff54c8777 in QThreadPoolThread::run() () at /lib64/libQt6Core.so.6
#6  0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 4 (Thread 0x7fffb7fff6c0 (LWP 251413)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c803e8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007ffff54cbaa6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt6Core.so.6
#5  0x00007ffff54c8777 in QThreadPoolThread::run() () at /lib64/libQt6Core.so.6
#6  0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 3 (Thread 0x7fffdd7fa6c0 (LWP 251402)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c801de in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007fffe4d4549d in cnd_wait () at /lib64/libgallium-25.1.0.so
#5  0x00007fffe4cff3fc in util_queue_thread_func () at /lib64/libgallium-25.1.0.so
#6  0x00007fffe4d453cc in impl_thrd_routine () at /lib64/libgallium-25.1.0.so
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 2 (Thread 0x7fffdeffd6c0 (LWP 251395)):
#0  0x00007ffff4c891c2 in __syscall_cancel_arch () at /lib64/libc.so.6
#1  0x00007ffff4c7d49a in __internal_syscall_cancel () at /lib64/libc.so.6
#2  0x00007ffff4c7db0c in __futex_abstimed_wait_common () at /lib64/libc.so.6
#3  0x00007ffff4c801de in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#4  0x00007ffff54cbb2c in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt6Core.so.6
#5  0x00007ffff7ca5588 in Gwenview::ThumbnailGenerator::run() () at /lib64/libgwenviewlib.so.5
#6  0x00007ffff54bdde4 in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#7  0x00007ffff4c80cc4 in start_thread () at /lib64/libc.so.6
#8  0x00007ffff4d030ec in __clone3 () at /lib64/libc.so.6

Thread 1 (Thread 0x7fffee52eb40 (LWP 251385)):
[KCrash Handler]
#4  0x00007ffff7c4ac00 in Gwenview::DocumentView::dragThumbnailLoaded(KFileItem const&, QPixmap const&) () at /lib64/libgwenviewlib.so.5
#5  0x00007ffff536033a in void doActivate<false>(QObject*, int, void**) () at /lib64/libQt6Core.so.6
#6  0x00007ffff7ca767d in Gwenview::ThumbnailProvider::thumbnailLoaded(KFileItem const&, QPixmap const&, QSize const&, unsigned long long) () at /lib64/libgwenviewlib.so.5
#7  0x00007ffff7caa22d in Gwenview::ThumbnailProvider::emitThumbnailLoaded(QImage const&, QSize const&) () at /lib64/libgwenviewlib.so.5
#8  0x00007ffff7cab912 in Gwenview::ThumbnailProvider::thumbnailReady(QImage const&, QSize const&) () at /lib64/libgwenviewlib.so.5
#9  0x00007ffff5350fec in QObject::event(QEvent*) () at /lib64/libQt6Core.so.6
#10 0x00007ffff643d7af in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt6Widgets.so.6
#11 0x00007ffff52f5fa8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt6Core.so.6
#12 0x00007ffff52f9cd6 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt6Core.so.6
#13 0x00007ffff55ffd2f in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt6Core.so.6
#14 0x00007ffff26ec040 in g_main_context_dispatch_unlocked.lto_priv () at /lib64/libglib-2.0.so.0
#15 0x00007ffff26f5128 in g_main_context_iterate_unlocked.isra () at /lib64/libglib-2.0.so.0
#16 0x00007ffff26f52d3 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#17 0x00007ffff55ff56d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt6Core.so.6
#18 0x00007ffff5303783 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt6Core.so.6
#19 0x00007ffff52ff229 in QCoreApplication::exec() () at /lib64/libQt6Core.so.6
#20 0x000055555555f86d in main ()

Reported using DrKonqi
Comment 1 A Linux User 2025-08-22 19:05:52 UTC 
Cannot reproduce on Gwenview 25.08. If there is a way that you can semi-consistently reproduce the bug, please tell, otherwise I wouldn't say that this is actionable.
Comment 2 Bernie Innocenti 2025-08-23 14:17:05 UTC 
I also can't reproduce any more with current versions of Gwenview, Plasma Frameworks and Qt.
Comment 3 freekngdom 2025-12-08 22:35:20 UTC 
crop image then drag into browser crashes gwenview