438187 – Search for an item makes kdeinit5 to crash

Bug 438187 - Search for an item makes kdeinit5 to crash

Summary: Search for an item makes kdeinit5 to crash

Status:	RESOLVED FIXED

Alias:	None

Product:	kio-extras
Classification:	Frameworks and Libraries
Component:	default (show other bugs)
Version:	21.08.2
Platform:	Other Linux

Importance:	NOR normal
Target Milestone:	---
Assignee:	Plasma Bugs List

URL:
Keywords:

Duplicates (3):	439058 440454 440542 (view as bug list)
Depends on:
Blocks:

Reported:	2021-06-06 21:13 UTC by Lua
Modified:	2021-10-16 21:31 UTC (History)
CC List:	8 users (show)

See Also:
Latest Commit:	https://invent.kde.org/network/kio-extras/commit/c3d52ebecb7f4890e8a412930bce9c74fc9e2f1f
Version Fixed In:	21.08.3
Sentry Crash Report:

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Description Lua 2021-06-06 21:13:44 UTC

SUMMARY


STEPS TO REPRODUCE
I'm having this every time right now, but I didn't reboot the computer yet.

OBSERVED RESULT


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.21
KDE Plasma Version: 5.21.5
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.3
Kernel Version: 5.4.0-74-generic
OS Type: 64-bit
Graphics Platform: X11
Processors: 8 × Intel® Core™ i5-8265U CPU @ 1.60GHz
Memory: 15,5 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 620
ADDITIONAL INFORMATION

Application: kdeinit5 (kdeinit5), signal: Aborted

[New LWP 27180]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f3aa577faff in __GI___poll (fds=0x7ffc3ed9fc68, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f3aa22aacc0 (LWP 27179))]

Thread 2 (Thread 0x7f3a9fe6a700 (LWP 27180)):
#0  0x00007f3aa577faff in __GI___poll (fds=0x7f3a98005240, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3aa41cc36e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3aa41cc4a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3aa5b6ab3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3aa5b0edcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3aa5928bb2 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3aa19def4b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f3aa5929d4c in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3aa4ce7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f3aa578c293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f3aa22aacc0 (LWP 27179)):
[KCrash Handler]
#4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#5  0x00007f3aa568f859 in __GI_abort () at abort.c:79
#6  0x00007f3aa58eebf7 in QMessageLogger::fatal(char const*, ...) const () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3aa4e639c8 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007f3aa50799e3 in QDialog::QDialog(QWidget*, QFlags<Qt::WindowType>) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007f3aa13aced3 in KMessageBox::messageBox(QWidget*, KMessageBox::DialogType, QString const&, QString const&, KGuiItem const&, KGuiItem const&, KGuiItem const&, QString const&, QFlags<KMessageBox::Option>) () from /lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#10 0x00007f3aa14563cf in ?? () from /lib/x86_64-linux-gnu/libKF5JobWidgets.so.5
#11 0x00007f3aa5b3de69 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f3aa5b1029f in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f3aa5b12bd1 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f3aa5b6b4c7 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f3aa41cc17d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f3aa41cc400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f3aa41cc4a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f3aa5b6ab22 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f3aa5b0edcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f3aa66b2896 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/filenamesearch.so
#21 0x00007f3aa66b2b7b in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/filenamesearch.so
#22 0x00007f3aa66b3097 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/filenamesearch.so
#23 0x00007f3aa1e97da6 in KIO::SlaveBase::dispatch(int, QByteArray const&) () from /usr/lib/x86_64-linux-gnu/libKF5KIOCore.so.5
#24 0x00007f3aa1e985e6 in KIO::SlaveBase::dispatchLoop() () from /usr/lib/x86_64-linux-gnu/libKF5KIOCore.so.5
#25 0x00007f3aa66b33ac in kdemain () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/filenamesearch.so
#26 0x000056347ce0b076 in ?? ()
#27 0x000056347ce0c4da in ?? ()
#28 0x000056347ce0ceca in ?? ()
#29 0x000056347ce080ff in ?? ()
#30 0x00007f3aa56910b3 in __libc_start_main (main=0x56347ce07750, argc=1, argv=0x7ffc3eda1988, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc3eda1978) at ../csu/libc-start.c:308
#31 0x000056347ce08cce in ?? ()
[Inferior 1 (process 27179) detached]

Comment 1 Ahmad Samir 2021-07-08 21:06:34 UTC

From bug 437153 comment 11.

Application: kdeinit5 (kdeinit5), signal: Aborted

[KCrash Handler]
#4  0x00007f482cbb7b31 in raise () from /lib64/libc.so.6
#5  0x00007f482cba1536 in abort () from /lib64/libc.so.6
#6  0x00007f482cdcece3 in qt_message_fatal (message=<synthetic pointer>..., context=...) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/global/qlogging.cpp:1914
#7  QMessageLogger::fatal (this=this@entry=0x7ffde132f410, msg=msg@entry=0x7f4828bd3378 "QWidget: Cannot create a QWidget without QApplication") at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/global/qlogging.cpp:893
#8  0x00007f48287f8cda in QWidgetPrivate::init (this=0x5625b2a5ff40, parentWidget=0x0, f=...) at /var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qwidget.cpp:981
#9  0x00007f4828a1901f in QDialog::QDialog (this=0x5625b2a9c5f0, parent=0x0, f=...) at /var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/dialogs/qdialog.cpp:400
#10 0x00007f4828e336ff in KMessageBox::messageBox (parent=0x0, type=KMessageBox::Error, text=..., caption=..., buttonYes=..., buttonNo=..., buttonCancel=..., dontShow=..., options=...) at /var/tmp/portage/kde-frameworks/kwidgetsaddons-5.83.0/work/kwidgetsaddons-5.83.0/src/kmessagebox.cpp:1033
#11 0x00007f4828ed90fa in KDialogJobUiDelegatePrivate::next (this=0x5625b2a4f500) at /var/tmp/portage/kde-frameworks/kjobwidgets-5.83.0/work/kjobwidgets-5.83.0/src/kdialogjobuidelegate.cpp:73
#12 0x00007f482cfeccfa in QObject::event (this=0x5625b2a4f500, e=0x5625b2a76b00) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qobject.cpp:1314
#13 0x00007f482cfc0f65 in doNotify (event=0x5625b2a76b00, receiver=0x5625b2a4f500) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qcoreapplication.cpp:1153
#14 QCoreApplication::notify (event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qcoreapplication.cpp:1139
#15 QCoreApplication::notifyInternal2 (receiver=0x5625b2a4f500, event=0x5625b2a76b00) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qcoreapplication.cpp:1063
#16 0x00007f482cfc460d in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x5625b29be700) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qcoreapplication.cpp:1817
#17 0x00007f482d014583 in postEventSourceDispatch (s=0x5625b2a09430) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qeventdispatcher_glib.cpp:277
#18 0x00007f482bf1ee9b in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#19 0x00007f482bf1f158 in ?? () from /usr/lib64/libglib-2.0.so.0
#20 0x00007f482bf1f20f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#21 0x00007f482d014033 in QEventDispatcherGlib::processEvents (this=0x5625b2a05710, flags=...) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qeventdispatcher_glib.cpp:423
#22 0x00007f482cfbf98b in QEventLoop::exec (this=this@entry=0x7ffde132f970, flags=..., flags@entry=...) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/include/QtCore/../../src/corelib/global/qflags.h:69
#23 0x00007f482dabb246 in FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (iteratedDirs=..., itemValidator=..., directory=..., this=0x7ffde1330020) at /usr/include/qt5/QtCore/qflags.h:121
#24 FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (this=0x7ffde1330020, directory=..., itemValidator=..., iteratedDirs=...) at /var/tmp/portage/kde-apps/kio-extras-20.12.3-r1/work/kio-extras-20.12.3/filenamesearch/kio_filenamesearch.cpp:100
#25 0x00007f482dabb52b in FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (iteratedDirs=..., itemValidator=..., directory=..., this=0x7ffde1330020) at /var/tmp/portage/kde-apps/kio-extras-20.12.3-r1/work/kio-extras-20.12.3/filenamesearch/kio_filenamesearch.cpp:151
#26 FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (this=0x7ffde1330020, directory=..., itemValidator=..., iteratedDirs=...) at /var/tmp/portage/kde-apps/kio-extras-20.12.3-r1/work/kio-extras-20.12.3/filenamesearch/kio_filenamesearch.cpp:100
#27 0x00007f482dabb52b in FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (iteratedDirs=..., itemValidator=..., directory=..., this=0x7ffde1330020) at /var/tmp/portage/kde-apps/kio-extras-20.12.3-r1/work/kio-extras-20.12.3/filenamesearch/kio_filenamesearch.cpp:151
#28 FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (this=0x7ffde1330020, directory=..., itemValidator=..., iteratedDirs=...) at /var/tmp/portage/kde-apps/kio-extras-20.12.3-r1/work/kio-extras-20.12.3/filenamesearch/kio_filenamesearch.cpp:100
#29 0x00007f482dabb52b in FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (iteratedDirs=..., itemValidator=..., directory=..., this=0x7ffde1330020) at /var/tmp/portage/kde-apps/kio-extras-20.12.3-r1/work/kio-extras-20.12.3/filenamesearch/kio_filenamesearch.cpp:151
#30 FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (this=0x7ffde1330020, directory=..., itemValidator=..., iteratedDirs=...) at /var/tmp/portage/kde-apps/kio-extras-20.12.3-r1/work/kio-extras-20.12.3/filenamesearch/kio_filenamesearch.cpp:100
#31 0x00007f482dabb52b in FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (iteratedDirs=..., itemValidator=..., directory=..., this=0x7ffde1330020) at /var/tmp/portage/kde-apps/kio-extras-20.12.3-r1/work/kio-extras-20.12.3/filenamesearch/kio_filenamesearch.cpp:151
#32 FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (this=0x7ffde1330020, directory=..., itemValidator=..., iteratedDirs=...) at /var/tmp/portage/kde-apps/kio-extras-20.12.3-r1/work/kio-extras-20.12.3/filenamesearch/kio_filenamesearch.cpp:100
#33 0x00007f482dabba7f in FileNameSearchProtocol::listDir (this=0x7ffde1330020, url=...) at /var/tmp/portage/kde-apps/kio-extras-20.12.3-r1/work/kio-extras-20.12.3/filenamesearch/kio_filenamesearch.cpp:95
#34 0x00007f4829a3c9a6 in KIO::SlaveBase::dispatch (this=0x7ffde1330020, command=71, data=...) at /var/tmp/portage/kde-frameworks/kio-5.83.0/work/kio-5.83.0/src/core/slavebase.cpp:1271
#35 0x00007f4829a3d4b6 in KIO::SlaveBase::dispatchLoop (this=0x7ffde1330020) at /var/tmp/portage/kde-frameworks/kio-5.83.0/work/kio-5.83.0/src/core/slavebase.cpp:335
#36 0x00007f482dabbda6 in kdemain (argc=<optimized out>, argv=0x5625b2a056e0) at /var/tmp/portage/kde-apps/kio-extras-20.12.3-r1/work/kio-extras-20.12.3/filenamesearch/kio_filenamesearch.cpp:203
#37 0x00005625b1b2b747 in launch (argc=argc@entry=4, _name=_name@entry=0x5625b2a05888 "/usr/lib64/qt5/plugins/kf5/kio/filenamesearch.so", args=0x5625b2a0592e "", args@entry=0x5625b2a058b9 "filenamesearch", cwd=cwd@entry=0x0, envc=envc@entry=0, envs=<optimized out>, envs@entry=0x5625b2a05936 "", reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x5625b1b2f195 "0") at /var/tmp/portage/kde-frameworks/kinit-5.83.0/work/kinit-5.83.0/src/kdeinit/kinit.cpp:692
#38 0x00005625b1b2cdc9 in handle_launcher_request (sock=8, who=who@entry=0x5625b1b2f14a "launcher") at /var/tmp/portage/kde-frameworks/kinit-5.83.0/work/kinit-5.83.0/src/kdeinit/kinit.cpp:1130
#39 0x00005625b1b2d5f8 in handle_requests (waitForPid=waitForPid@entry=0) at /var/tmp/portage/kde-frameworks/kinit-5.83.0/work/kinit-5.83.0/src/kdeinit/kinit.cpp:1323
#40 0x00005625b1b28640 in main (argc=3, argv=0x7ffde13305e0) at /var/tmp/portage/kde-frameworks/kinit-5.83.0/work/kinit-5.83.0/src/kdeinit/kinit.cpp:1761
[Inferior 1 (process 26292) detached]

Comment 2 Bug Janitor Service 2021-07-09 15:50:12 UTC

A possibly relevant merge request was started @ https://invent.kde.org/network/kio-extras/-/merge_requests/111

Comment 3 Fushan Wen 2021-07-11 09:44:22 UTC

I searched in /usr/share and the crash appears. Are they the same bug?

Application: kdeinit5 (kdeinit5), signal: Aborted

[KCrash Handler]
#4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
#5  0x00007fcf8175f864 in __GI_abort () at abort.c:79
#6  0x00007fcf819c2ff7 in qt_message_fatal (message=<synthetic pointer>..., context=...) at global/qlogging.cpp:1914
#7  QMessageLogger::fatal (this=this@entry=0x7ffe9e455f60, msg=msg@entry=0x7fcf812d2178 "QWidget: Cannot create a QWidget without QApplication") at global/qlogging.cpp:893
#8  0x00007fcf80f100fa in QWidgetPrivate::init (this=<optimized out>, parentWidget=<optimized out>, f=...) at kernel/qwidget.cpp:981
#9  0x00007fcf8112415f in QDialog::QDialog (this=this@entry=0x55eaed7ff090, parent=parent@entry=0x0, f=..., f@entry=...) at dialogs/qdialog.cpp:400
#10 0x00007fcf7d1bf52c in KMessageBox::messageBox (parent=0x0, type=KMessageBox::Error, text=..., caption=..., buttonYes=..., buttonNo=..., buttonCancel=..., dontShow=..., options=...) at /usr/src/debug/kwidgetsaddons-5.85.0git.20210710T193104~bac6de40-ku.2.1.x86_64/src/kmessagebox.cpp:1033
#11 0x00007fcf7d261b13 in KDialogJobUiDelegatePrivate::next (this=0x55eaed7405d0) at /usr/src/debug/kjobwidgets-5.85.0git.20210710T192743~9c6142f-ku.2.1.x86_64/src/kdialogjobuidelegate.cpp:73
#12 0x00007fcf81c0ef5e in QObject::event (this=0x55eaed7405d0, e=0x55eaed7d8b70) at kernel/qobject.cpp:1314
#13 0x00007fcf81be293f in doNotify (event=0x55eaed7d8b70, receiver=0x55eaed7405d0) at kernel/qcoreapplication.cpp:1154
#14 QCoreApplication::notify (event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at kernel/qcoreapplication.cpp:1140
#15 QCoreApplication::notifyInternal2 (receiver=0x55eaed7405d0, event=0x55eaed7d8b70) at kernel/qcoreapplication.cpp:1064
#16 0x00007fcf81be59b7 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55eaed6b6d40) at kernel/qcoreapplication.cpp:1821
#17 0x00007fcf81c3a7d3 in postEventSourceDispatch (s=s@entry=0x55eaed71a020) at kernel/qeventdispatcher_glib.cpp:277
#18 0x00007fcf801c480f in g_main_dispatch (context=0x55eaed717db0) at ../glib/gmain.c:3337
#19 g_main_context_dispatch (context=0x55eaed717db0) at ../glib/gmain.c:4055
#20 0x00007fcf801c4b98 in g_main_context_iterate (context=context@entry=0x55eaed717db0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4131
#21 0x00007fcf801c4c4f in g_main_context_iteration (context=0x55eaed717db0, may_block=1) at ../glib/gmain.c:4196
#22 0x00007fcf81c39e54 in QEventDispatcherGlib::processEvents (this=0x55eaed715dd0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#23 0x00007fcf81be136b in QEventLoop::exec (this=this@entry=0x7ffe9e456530, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#24 0x00007fcf7dd3147e in FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (iteratedDirs=..., itemValidator=..., directory=..., this=0x7ffe9e456b20) at /usr/include/qt5/QtCore/qflags.h:121
#25 FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (this=this@entry=0x7ffe9e456b20, directory=..., itemValidator=..., iteratedDirs=...) at /usr/src/debug/kio-extras5-21.11.70git.20210710T131328~3953484c-ku.36.2.x86_64/filenamesearch/kio_filenamesearch.cpp:92
#26 0x00007fcf7dd31763 in FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (iteratedDirs=..., itemValidator=..., directory=..., this=0x7ffe9e456b20) at /usr/src/debug/kio-extras5-21.11.70git.20210710T131328~3953484c-ku.36.2.x86_64/filenamesearch/kio_filenamesearch.cpp:143
#27 FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (this=this@entry=0x7ffe9e456b20, directory=..., itemValidator=..., iteratedDirs=...) at /usr/src/debug/kio-extras5-21.11.70git.20210710T131328~3953484c-ku.36.2.x86_64/filenamesearch/kio_filenamesearch.cpp:92
#28 0x00007fcf7dd31763 in FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (iteratedDirs=..., itemValidator=..., directory=..., this=0x7ffe9e456b20) at /usr/src/debug/kio-extras5-21.11.70git.20210710T131328~3953484c-ku.36.2.x86_64/filenamesearch/kio_filenamesearch.cpp:143
#29 FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (this=this@entry=0x7ffe9e456b20, directory=..., itemValidator=..., iteratedDirs=...) at /usr/src/debug/kio-extras5-21.11.70git.20210710T131328~3953484c-ku.36.2.x86_64/filenamesearch/kio_filenamesearch.cpp:92
#30 0x00007fcf7dd31763 in FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (iteratedDirs=..., itemValidator=..., directory=..., this=0x7ffe9e456b20) at /usr/src/debug/kio-extras5-21.11.70git.20210710T131328~3953484c-ku.36.2.x86_64/filenamesearch/kio_filenamesearch.cpp:143
#31 FileNameSearchProtocol::searchDirectory(QUrl const&, std::function<bool (KFileItem const&)> const&, QSet<QString>&) (this=this@entry=0x7ffe9e456b20, directory=..., itemValidator=..., iteratedDirs=...) at /usr/src/debug/kio-extras5-21.11.70git.20210710T131328~3953484c-ku.36.2.x86_64/filenamesearch/kio_filenamesearch.cpp:92
#32 0x00007fcf7dd31ca6 in FileNameSearchProtocol::listDir (this=0x7ffe9e456b20, url=...) at /usr/src/debug/kio-extras5-21.11.70git.20210710T131328~3953484c-ku.36.2.x86_64/filenamesearch/kio_filenamesearch.cpp:87
#33 0x00007fcf7ddbe706 in KIO::SlaveBase::dispatch (this=0x7ffe9e456b20, command=71, data=...) at /usr/src/debug/kio-5.85.0git.20210710T192705~c5e428e71-ku.5.1.x86_64/src/core/slavebase.cpp:1271
#34 0x00007fcf7ddb6266 in KIO::SlaveBase::dispatchLoop (this=0x7ffe9e456b20) at /usr/src/debug/kio-5.85.0git.20210710T192705~c5e428e71-ku.5.1.x86_64/src/core/slavebase.cpp:335
#35 0x00007fcf7dd3218b in kdemain (argc=<optimized out>, argv=0x7ffe9e456af0) at /usr/src/debug/kio-extras5-21.11.70git.20210710T131328~3953484c-ku.36.2.x86_64/filenamesearch/kio_filenamesearch.cpp:195
#36 0x000055eaec94dae8 in launch (argc=argc@entry=4, _name=_name@entry=0x55eaed715d08 "/usr/lib64/qt5/plugins/kf5/kio/filenamesearch.so", args=0x55eaed715dae "", args@entry=0x55eaed715d39 "filenamesearch", cwd=cwd@entry=0x0, envc=envc@entry=0, envs=<optimized out>, envs@entry=0x55eaed715db6 "", reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x55eaec950175 "0") at /usr/src/debug/kinit-5.85.0git.20210710T192655~88e23a2-ku.2.1.x86_64/src/kdeinit/kinit.cpp:692
#37 0x000055eaec94f28b in handle_launcher_request (sock=8, who=<optimized out>) at /usr/src/debug/kinit-5.85.0git.20210710T192655~88e23a2-ku.2.1.x86_64/src/kdeinit/kinit.cpp:1130
#38 0x000055eaec94f8c0 in handle_requests (waitForPid=waitForPid@entry=0) at /usr/src/debug/kinit-5.85.0git.20210710T192655~88e23a2-ku.2.1.x86_64/src/kdeinit/kinit.cpp:1323
#39 0x000055eaec94a61a in main (argc=3, argv=<optimized out>) at /usr/src/debug/kinit-5.85.0git.20210710T192655~88e23a2-ku.2.1.x86_64/src/kdeinit/kinit.cpp:1761
[Inferior 1 (process 15775) detached]

Comment 4 Ahmad Samir 2021-07-22 11:50:20 UTC

Git commit 5dff395ecea2977cf149c293c16c4d4a5151493b by Ahmad Samir.
Committed on 22/07/2021 at 11:44.
Pushed by ahmadsamir into branch 'master'.

kio_filenamesearch: fix crash due to KCoreDirLister changes

Error reporting was changed in KCoreDirlister, to match the original behaviour
we need to explicitly disable auto error handling.

This fixes a crash while searching in Dolphin, kio_filenamesearch intrenally
uses a dirlister, and a nested event loop, if there is an error while listing
some dir it tries to report it using a job ui delegate, but the parent job
could well be dead by that time, which causes a crash:
"QWidget: Cannot create a QWidget without QApplication"

Note that this crash only happens if KDE_FORK_SLAVES is _not_ set.

M  +1    -0    filenamesearch/kio_filenamesearch.cpp

https://invent.kde.org/network/kio-extras/commit/5dff395ecea2977cf149c293c16c4d4a5151493b

Comment 5 Ahmad Samir 2021-08-01 13:34:32 UTC

*** Bug 440454 has been marked as a duplicate of this bug. ***

Comment 6 postix 2021-08-03 10:30:04 UTC

*** Bug 439058 has been marked as a duplicate of this bug. ***

Comment 7 postix 2021-08-03 10:38:56 UTC

*** Bug 440542 has been marked as a duplicate of this bug. ***

Comment 8 Ahmad Samir 2021-10-16 21:30:10 UTC

Git commit c3d52ebecb7f4890e8a412930bce9c74fc9e2f1f by Ahmad Samir.
Committed on 16/10/2021 at 21:29.
Pushed by ahmadsamir into branch 'release/21.08'.

kio_filenamesearch: fix crash due to KCoreDirLister changes

Error reporting was changed in KCoreDirlister, to match the original behaviour
we need to explicitly disable auto error handling.

This fixes a crash while searching in Dolphin, kio_filenamesearch intrenally
uses a dirlister, and a nested event loop, if there is an error while listing
some dir it tries to report it using a job ui delegate, but the parent job
could well be dead by that time, which causes a crash:
"QWidget: Cannot create a QWidget without QApplication"

Note that this crash only happens if KDE_FORK_SLAVES is _not_ set.
FIXED-IN: 21.08.3
(cherry picked from commit 5dff395ecea2977cf149c293c16c4d4a5151493b)

M  +1    -0    filenamesearch/kio_filenamesearch.cpp

https://invent.kde.org/network/kio-extras/commit/c3d52ebecb7f4890e8a412930bce9c74fc9e2f1f