Bug 505152

Summary:	Dolphin crashed after opening a new tab
Product:	[Applications] dolphin	Reporter:	Olaf M. <om>
Component:	general	Assignee:	Dolphin Bug Assignee <dolphin-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	crash	CC:	kdedev, kfm-devel
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	25.04.1
Target Milestone:	---
Platform:	KDE Linux
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:	https://crash-reports.kde.org/organizations/kde/issues/192000/events/05cc9228670e4c5cbf1dc6cb0810d64e/
Attachments:	New crash information added by DrKonqi

Description Olaf M. 2025-06-03 07:37:01 UTC

Application: dolphin (25.04.1)

ApplicationNotResponding [ANR]: false
Qt Version: 6.9.0
Frameworks Version: 6.14.0
Operating System: Linux 6.11.0-26-generic x86_64
Windowing System: Wayland
Distribution: KDE neon 6.3
DrKonqi: 6.3.5 [CoredumpBackend]

-- Information about the crash:
Dear Dev.-team, I observed a Dolphon crah an have the follwoing add-info:
- There were severeal Dolphin windows opened, in total 7, a view with more than one tab.
- In one window I executed a search and got the results. 
- On two of the search results (there were maybe 30 hits) I opened the corresponding folder tabs using right mouse klick on a file.
- I retrieved data in those additional tabs and then I decided to manually open one further tab using the button I have added to my default doplhin window appearance.
- Immediately after I pressed the button to open this new tab then dolphin crashed.
- I tried 3x to reproduce the case but w/o success.
- All the other remaining 6 open dolphin windows were not affected.
- I use KDE neon with KDE-Plasma-Version 6.3.5, KDE-Framworks 6.14.0, Qt-Version 6.9.0, Kernel 6.11.0-26-generic (64bit), lenovo laptop ThinkPad X1 Yoga Gen 7, 16GB RAM, with 30% memory usage, 16 × 12th Gen Intel® Core™ i5-1240P CPU, no add GPU.
- The following apps were active at that moment: Oracle VirtualBox, Firefox, Discover, Kate and Evolution.
Hope that helps you. Kind regards, Olaf M.

The crash does not seem to be 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=signo@entry=6) at ./nptl/pthread_kill.c:89
#9  0x0000740773a4527e in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#10 0x0000740773a288ff in __GI_abort () at ./stdlib/abort.c:79


Reported using DrKonqi

Comment 1 Olaf M. 2025-06-03 07:37:02 UTC

Created attachment 181987 [details]
New crash information added by DrKonqi

DrKonqi auto-attaching complete backtrace.

Comment 2 TraceyC 2025-06-09 20:40:08 UTC

Searchable backtrace


Thread 1 (Thread 0x74076cef3d40 (LWP 5795)):
[KCrash Handler]
#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=signo@entry=6) at ./nptl/pthread_kill.c:89
#9  0x0000740773a4527e in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#10 0x0000740773a288ff in __GI_abort () at ./stdlib/abort.c:79
#11 0x0000740773ea5ff5 in __gnu_cxx::__verbose_terminate_handler () at ../../../../src/libstdc++-v3/libsupc++/vterminate.cc:95
#12 0x0000740773ebb0da in __cxxabiv1::__terminate (handler=<optimized out>) at ../../../../src/libstdc++-v3/libsupc++/eh_terminate.cc:48
#13 0x0000740773ea5a55 in std::terminate () at ../../../../src/libstdc++-v3/libsupc++/eh_terminate.cc:58
#14 0x000074077470935a in qt_check_pointer (n=n@entry=0x61d75f7b5040 "./src/dolphinviewcontainer.cpp", l=l@entry=941) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/global/qassert.cpp:160
#15 0x000061d75f729021 in DolphinViewContainer::startSearching (this=<optimized out>) at /usr/src/dolphin-4:25.04.1-0zneon+24.04+noble+release+build19/src/dolphinviewcontainer.cpp:941
#16 0x0000740774677a99 in QtPrivate::QSlotObjectBase::call (a=<optimized out>, r=<optimized out>, this=<optimized out>, this=<optimized out>, r=<optimized out>, a=<optimized out>) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/kernel/qobjectdefs_impl.h:461
#17 doActivate<false> (sender=0x61d7632b9780, signal_index=7, argv=0x7ffdf84b8eb8) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/kernel/qobject.cpp:4138
#18 0x0000740774677a99 in QtPrivate::QSlotObjectBase::call (a=<optimized out>, r=<optimized out>, this=<optimized out>, this=<optimized out>, r=<optimized out>, a=<optimized out>) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/kernel/qobjectdefs_impl.h:461
#19 doActivate<false> (sender=0x61d76389c900, signal_index=3, argv=0x7ffdf84b8ff0) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/kernel/qobject.cpp:4138
#20 0x000074077461cb7d in QMetaObject::activate<void, QTimer::QPrivateSignal> (ret=0x0, local_signal_index=0, mo=<optimized out>, sender=<optimized out>) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/kernel/qobjectdefs.h:306
#21 QTimer::timeout (this=<optimized out>, _t1=...) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/obj-x86_64-linux-gnu/src/corelib/Core_autogen/include/moc_qtimer.cpp:182
#22 0x0000740774600ae6 in QObject::event (this=0x61d76389c900, e=0x7ffdf84b9180) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/kernel/qobject.cpp:1406
#23 0x000074077580551d in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x61d76389c900, e=0x7ffdf84b9180) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/widgets/kernel/qapplication.cpp:3301
#24 0x00007407746b0dd0 in QCoreApplication::notifyInternal2 (receiver=0x61d76389c900, event=0x7ffdf84b9180) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/kernel/qcoreapplication.cpp:1106
#25 0x000074077458f087 in QTimerInfoList::activateTimers (this=0x61d762838260) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/kernel/qtimerinfo_unix.cpp:426
#26 0x0000740774461d99 in timerSourceDispatch (source=<optimized out>) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/kernel/qeventdispatcher_glib.cpp:152
#27 0x00007407718c35c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x0000740771922737 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007407718c2a63 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x0000740774460b3f in QEventDispatcherGlib::processEvents (this=0x61d76270fbc0, flags=...) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/kernel/qeventdispatcher_glib.cpp:399
#31 0x00007407746bb4bb in QEventLoop::exec (this=0x7ffdf84b93f0, flags=...) at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/global/qflags.h:77
#32 0x00007407746b405f in QCoreApplication::exec () at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/corelib/global/qflags.h:77
#33 0x0000740774add49d in QGuiApplication::exec () at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/gui/kernel/qguiapplication.cpp:1993
#34 0x0000740775802209 in QApplication::exec () at /usr/src/qt6-base-6.9.0-0zneon+24.04+noble+release+build112/src/widgets/kernel/qapplication.cpp:2568
#35 0x000061d75f704566 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/dolphin-4:25.04.1-0zneon+24.04+noble+release+build19/src/main.cpp:273

Comment 3 TraceyC 2025-06-09 21:20:40 UTC

This is the same backtrace as bug 500101. That was supposedly fixed in 25.04.0.

I can't reproduce this on git-master or Neon Testing. You indicated you aren't able to reproduce it right now. If you do see the crash again, please let us know.

I'll set this to NEEDSINFO so it will remind us in 15 days. If you see the crash, please set this back to REPORTED. Thanks.

Comment 4 Olaf M. 2025-06-10 07:44:12 UTC

Dear TraceyC,
- Thanks for your reply and investigations. Till now the crash did not occur again.
- Due to other reasons I've changed 2 days ago the OS from KDE neon to Linux Mint 22.1 but added the KDE plasma desktop it. This plasma version is V5.27.12, not V6.3.5. So I've lost the same environment. However, if I should see the problem again (in the V5... version)  I'll definitely update this report.
- Can't promise but maybe on my backup laptop is some space left to install the V6... environment to execute further tests.
Kind regards and thanks to you and the entire KDE-team for creating such great software,
Olaf M.

Comment 5 TraceyC 2025-06-10 14:54:34 UTC

Thanks for the update. Unfortunately, 5.27.12 is no longer eligible for support from KDE. I don't think the Linux Mint folks provide support for it either. I'm going to close this report for now.

If you see the crash again with Dolphin 25.04.0 or later, please re-open this report. Thanks.