Hi. These days Dolphin closes unexpectedly when I delete files.
Krash reporter says it's log may be useful. So I want to show them here.

Code: Select all

Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x69acd8c7b800 (LWP 2120))]

Thread 3 (Thread 0x69acbb3c5700 (LWP 2123)):
#0  0x000069accae9a2d9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x000069accae53421 in  () at /usr/lib/libglib-2.0.so.0
#2  0x000069accae5363e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x000069acd26ec254 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x000069acd268e31b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x000069acd249d71e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x000069acd2b0f416 in  () at /usr/lib/libQt5DBus.so.5
#7  0x000069acd24a2abd in  () at /usr/lib/libQt5Core.so.5
#8  0x000069accd4e5075 in start_thread () at /usr/lib/libpthread.so.0
#9  0x000069acd852d53f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x69acc15c5700 (LWP 2122)):
#0  0x000069acd8522ea9 in poll () at /usr/lib/libc.so.6
#1  0x000069acca78d180 in  () at /usr/lib/libxcb.so.1
#2  0x000069acca78ee4b in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x000069acc415f82a in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x000069acd24a2abd in  () at /usr/lib/libQt5Core.so.5
#5  0x000069accd4e5075 in start_thread () at /usr/lib/libpthread.so.0
#6  0x000069acd852d53f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x69acd8c7b800 (LWP 2120)):
[KCrash Handler]
#6  0x000069acd81605c3 in  () at /usr/lib/libdolphinprivate.so.5
#7  0x000069acd819c26e in KStandardItem::setDataValue(QByteArray const&, QVariant const&) () at /usr/lib/libdolphinprivate.so.5
#8  0x000069acd819c582 in KStandardItem::setIcon(QString const&) () at /usr/lib/libdolphinprivate.so.5
#9  0x000069acd885663a in  () at /usr/lib/libkdeinit5_dolphin.so
#10 0x000069acd26c072f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#11 0x000069acd887d190 in  () at /usr/lib/libkdeinit5_dolphin.so
#12 0x000069acd884b949 in  () at /usr/lib/libkdeinit5_dolphin.so
#13 0x000069acd26c072f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#14 0x000069acd6acf2fd in  () at /usr/lib/libKF5KIOCore.so.5
#15 0x000069acd26c072f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#16 0x000069acd405f6ed in KJob::result(KJob*, KJob::QPrivateSignal) () at /usr/lib/libKF5CoreAddons.so.5
#17 0x000069acd40601cc in KJob::finishJob(bool) () at /usr/lib/libKF5CoreAddons.so.5
#18 0x000069acd6a7cdf1 in KIO::SimpleJob::slotFinished() () at /usr/lib/libKF5KIOCore.so.5
#19 0x000069acd6a7364e in KIO::ListJob::slotFinished() () at /usr/lib/libKF5KIOCore.so.5
#20 0x000069acd26c072f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#21 0x000069acd6a5211e in KIO::SlaveInterface::dispatch(int, QByteArray const&) () at /usr/lib/libKF5KIOCore.so.5
#22 0x000069acd6a4f268 in KIO::SlaveInterface::dispatch() () at /usr/lib/libKF5KIOCore.so.5
#23 0x000069acd6a54f8a in KIO::Slave::gotInput() () at /usr/lib/libKF5KIOCore.so.5
#24 0x000069acd6aef126 in  () at /usr/lib/libKF5KIOCore.so.5
#25 0x000069acd26c0606 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#26 0x000069acd69e1864 in  () at /usr/lib/libKF5KIOCore.so.5
#27 0x000069acd26c1052 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#28 0x000069acd3697fec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#29 0x000069acd369f9c6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#30 0x000069acd268fce0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#31 0x000069acd2692946 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#32 0x000069acd26ecc44 in  () at /usr/lib/libQt5Core.so.5
#33 0x000069accae53368 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#34 0x000069accae535b1 in  () at /usr/lib/libglib-2.0.so.0
#35 0x000069accae5363e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#36 0x000069acd26ec231 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#37 0x000069acc41e7482 in  () at /usr/lib/libQt5XcbQpa.so.5
#38 0x000069acd268e31b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#39 0x000069acd2697718 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#40 0x000069acd8830ac2 in kdemain () at /usr/lib/libkdeinit5_dolphin.so
#41 0x000069acd845806b in __libc_start_main () at /usr/lib/libc.so.6
#42 0x000001fa9bad275a in _start ()


Code: Select all

Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x6940a33d3800 (LWP 5244))]

Thread 3 (Thread 0x694089c17700 (LWP 5247)):
#0  0x00006940a2c76934 in read () at /usr/lib/libc.so.6
#1  0x00006940955f0ed1 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00006940955aaff8 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00006940955ab4c6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00006940955ab63e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x000069409ce44254 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x000069409cde631b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x000069409cbf571e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x000069409d267416 in  () at /usr/lib/libQt5DBus.so.5
#9  0x000069409cbfaabd in  () at /usr/lib/libQt5Core.so.5
#10 0x0000694097c3d075 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00006940a2c8553f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x69408bd1d700 (LWP 5246)):
#0  0x00006940a2c7aea9 in poll () at /usr/lib/libc.so.6
#1  0x0000694094ee5180 in  () at /usr/lib/libxcb.so.1
#2  0x0000694094ee6e4b in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x000069408e8b782a in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x000069409cbfaabd in  () at /usr/lib/libQt5Core.so.5
#5  0x0000694097c3d075 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00006940a2c8553f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x6940a33d3800 (LWP 5244)):
[KCrash Handler]
#6  0x00006940a28b8360 in  () at /usr/lib/libdolphinprivate.so.5
#7  0x000069409cc4bc89 in QHashData::detach_helper(void (*)(QHashData::Node*, void*), void (*)(QHashData::Node*), int, int) () at /usr/lib/libQt5Core.so.5
#8  0x00006940a28f36ab in  () at /usr/lib/libdolphinprivate.so.5
#9  0x00006940a28f4238 in KStandardItem::setDataValue(QByteArray const&, QVariant const&) () at /usr/lib/libdolphinprivate.so.5
#10 0x00006940a28f4582 in KStandardItem::setIcon(QString const&) () at /usr/lib/libdolphinprivate.so.5
#11 0x00006940a2fae63a in  () at /usr/lib/libkdeinit5_dolphin.so
#12 0x000069409ce1872f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#13 0x00006940a2fd5190 in  () at /usr/lib/libkdeinit5_dolphin.so
#14 0x00006940a2fa3949 in  () at /usr/lib/libkdeinit5_dolphin.so
#15 0x000069409ce1872f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#16 0x00006940a12272fd in  () at /usr/lib/libKF5KIOCore.so.5
#17 0x000069409ce1872f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#18 0x000069409e7b76ed in KJob::result(KJob*, KJob::QPrivateSignal) () at /usr/lib/libKF5CoreAddons.so.5
#19 0x000069409e7b81cc in KJob::finishJob(bool) () at /usr/lib/libKF5CoreAddons.so.5
#20 0x00006940a11d4df1 in KIO::SimpleJob::slotFinished() () at /usr/lib/libKF5KIOCore.so.5
#21 0x00006940a11cb64e in KIO::ListJob::slotFinished() () at /usr/lib/libKF5KIOCore.so.5
#22 0x000069409ce1872f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#23 0x00006940a11aa11e in KIO::SlaveInterface::dispatch(int, QByteArray const&) () at /usr/lib/libKF5KIOCore.so.5
#24 0x00006940a11a7268 in KIO::SlaveInterface::dispatch() () at /usr/lib/libKF5KIOCore.so.5
#25 0x00006940a11acf8a in KIO::Slave::gotInput() () at /usr/lib/libKF5KIOCore.so.5
#26 0x00006940a1247126 in  () at /usr/lib/libKF5KIOCore.so.5
#27 0x000069409ce18606 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#28 0x00006940a1139864 in  () at /usr/lib/libKF5KIOCore.so.5
#29 0x000069409ce19052 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#30 0x000069409ddeffec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#31 0x000069409ddf79c6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#32 0x000069409cde7ce0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#33 0x000069409cdea946 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#34 0x000069409ce44c44 in  () at /usr/lib/libQt5Core.so.5
#35 0x00006940955ab368 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#36 0x00006940955ab5b1 in  () at /usr/lib/libglib-2.0.so.0
#37 0x00006940955ab63e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#38 0x000069409ce44231 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#39 0x000069408e93f482 in  () at /usr/lib/libQt5XcbQpa.so.5
#40 0x000069409cde631b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#41 0x000069409cdef718 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#42 0x00006940a2f88ac2 in kdemain () at /usr/lib/libkdeinit5_dolphin.so
#43 0x00006940a2bb006b in __libc_start_main () at /usr/lib/libc.so.6
#44 0x000008d1c230775a in _start ()


Could you help me? Thanks.

Have the same issue and cant even figure it out

Crash reports belong to the bug tracker, not in the forum: https://bugs.kde.org

FWIW: you do not have debugging symbols installed so your backtrace is not really useful. Please see https://community.kde.org/Guidelines_an ... sh_reports

My dolphin simply stopped working and I get this error every time I attempt to open it.

Fortunately, I found the file explorer Krusader, which may actually be superior to Dolphin, in my opinion!

Hello,
just stopped working for me too.
Applied the same solution, switched to Krusader,
(not so bad, really...)
tomorrow I try with bug report

Operating System: KDE neon 5.20
KDE Plasma Version: 5.20.4
KDE Frameworks Version: 5.77.0
Qt Version: 5.15.2
Kernel Version: 5.4.0-58-generic
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-8550U CPU @ 1.80GHz
Memory: 7,5 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 620