Application: dolphin (20.08.2) Qt Version: 5.14.2 Frameworks Version: 5.74.0 Operating System: Linux 5.8.0-26-generic x86_64 Windowing system: X11 Distribution: Ubuntu 20.10 -- Information about the crash: - What I was doing when the application crashed: I went to Trash where I had about 400 MiB of data and attempted to empty the Trash. Every item in Trash was duplicated, which I thought was strange. When I hit "Empty Trash" button, Dolphin crashed. The crash can be reproduced every time. -- Backtrace: Application: Dolphin (dolphin), signal: Segmentation fault Content of s_kcrashErrorMessage: (null) [KCrash Handler] #6 QSharedDataPointer<KFileItemPrivate>::~QSharedDataPointer (this=0x55e2e539e650, __in_chrg=<optimized out>) at /usr/include/c++/10/bits/atomic_base.h:333 #7 0x00007fa7e91e18be in KFileItemModel::ItemData::~ItemData (this=0x55e2e539e650, __in_chrg=<optimized out>) at ./src/kitemviews/kfileitemmodel.h:298 #8 qDeleteAll<QList<KFileItemModel::ItemData*>::const_iterator> (end=..., begin=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:320 #9 qDeleteAll<QList<KFileItemModel::ItemData*> > (c=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:328 #10 KFileItemModel::slotClear (this=0x55e2e563cb90) at ./src/kitemviews/kfileitemmodel.cpp:1155 #11 0x00007fa7e73e42e6 in QtPrivate::QSlotObjectBase::call (a=0x7ffc7b51a620, r=0x55e2e563cb90, this=0x55e2e4b27040) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398 #12 doActivate<false> (sender=0x55e2e55fc290, signal_index=10, argv=0x7ffc7b51a620, argv@entry=0x0) at kernel/qobject.cpp:3870 #13 0x00007fa7e73de068 in QMetaObject::activate (sender=sender@entry=0x55e2e55fc290, m=m@entry=0x7fa7e8d65100 <KCoreDirLister::staticMetaObject>, local_signal_index=local_signal_index@entry=7, argv=argv@entry=0x0) at kernel/qobject.cpp:3930 #14 0x00007fa7e8cea547 in KCoreDirLister::clear (this=this@entry=0x55e2e55fc290) at ./obj-x86_64-linux-gnu/src/core/KF5KIOCore_autogen/include/moc_kcoredirlister.cpp:460 #15 0x00007fa7e8cfcb3e in KCoreDirListerCache::forgetDirs (this=this@entry=0x7fa7e8d684e0 <(anonymous namespace)::Q_QGS_kDirListerCache::innerFunction()::holder>, lister=0x55e2e55fc290) at ./src/core/kcoredirlister.cpp:490 #16 0x00007fa7e8cfd31a in KCoreDirListerCache::listDir (this=0x7fa7e8d684e0 <(anonymous namespace)::Q_QGS_kDirListerCache::innerFunction()::holder>, lister=<optimized out>, _u=..., _keep=<optimized out>, _reload=<optimized out>) at ./src/core/kcoredirlister.cpp:125 #17 0x00007fa7e91ec382 in KFileItemModel::refreshDirectory (this=0x55e2e563cb90, url=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qflags.h:118 #18 0x00007fa7e9243dcf in DolphinView::reload (this=0x55e2e537d4d0) at ./src/views/dolphinview.cpp:463 #19 0x00007fa7e94e68f1 in DolphinViewContainer::reload (this=0x55e2e53dfcc0) at ./src/dolphinviewcontainer.cpp:456 #20 0x00007fa7e94d1662 in DolphinMainWindow::reloadView (this=0x55e2e44ccdc0) at ./src/dolphinmainwindow.cpp:805 #21 0x00007fa7e73e42e6 in QtPrivate::QSlotObjectBase::call (a=0x7ffc7b51a9f0, r=0x55e2e44ccdc0, this=0x55e2e4550b70) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398 #22 doActivate<false> (sender=0x55e2e453e520, signal_index=4, argv=argv@entry=0x7ffc7b51a9f0) at kernel/qobject.cpp:3870 #23 0x00007fa7e73de068 in QMetaObject::activate (sender=sender@entry=0x55e2e453e520, m=m@entry=0x7fa7e8427f00 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffc7b51a9f0) at kernel/qobject.cpp:3930 #24 0x00007fa7e7f1f826 in QAction::triggered (this=this@entry=0x55e2e453e520, _t1=<optimized out>) at .moc/moc_qaction.cpp:381 #25 0x00007fa7e7f22111 in QAction::activate (this=0x55e2e453e520, event=<optimized out>) at kernel/qaction.cpp:1161 #26 0x00007fa7e8017202 in QAbstractButtonPrivate::click (this=this@entry=0x55e2e46e34f0) at widgets/qabstractbutton.cpp:909 #27 0x00007fa7e8017325 in QAbstractButton::mouseReleaseEvent (this=0x55e2e470c050, e=0x7ffc7b51afc0) at widgets/qabstractbutton.cpp:1012 #28 0x00007fa7e810959e in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:622 #29 0x00007fa7e7f6730e in QWidget::event (this=0x55e2e470c050, event=0x7ffc7b51afc0) at kernel/qwidget.cpp:9033 #30 0x00007fa7e7f26013 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x55e2e470c050, e=0x7ffc7b51afc0) at kernel/qapplication.cpp:3685 #31 0x00007fa7e7f2b841 in QApplication::notify(QObject*, QEvent*) () at kernel/qapplication.cpp:3129 #32 0x00007fa7e73ae1ca in QCoreApplication::notifyInternal2 (receiver=0x55e2e470c050, event=0x7ffc7b51afc0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:153 #33 0x00007fa7e7f2a73a in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x55e2e470c050, event=event@entry=0x7ffc7b51afc0, alienWidget=alienWidget@entry=0x55e2e470c050, nativeWidget=0x55e2e44ccdc0, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2615 #34 0x00007fa7e7f7ff32 in QWidgetWindow::handleMouseEvent (this=0x55e2e47333b0, event=0x7ffc7b51b280) at /usr/include/c++/10/bits/atomic_base.h:420 #35 0x00007fa7e7f82d8e in QWidgetWindow::event (this=0x55e2e47333b0, event=0x7ffc7b51b280) at kernel/qwidgetwindow.cpp:295 #36 0x00007fa7e7f26013 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x55e2e47333b0, e=0x7ffc7b51b280) at kernel/qapplication.cpp:3685 #37 0x00007fa7e73ae1ca in QCoreApplication::notifyInternal2 (receiver=0x55e2e47333b0, event=0x7ffc7b51b280) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:153 #38 0x00007fa7e784148b in QGuiApplicationPrivate::processMouseEvent (e=0x55e2e4c9e670) at kernel/qguiapplication.cpp:2203 #39 0x00007fa7e78172bb in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1170 #40 0x00007fa7e210035e in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105 #41 0x00007fa7e52e84db in g_main_dispatch (context=0x7fa7dc005000) at ../../../glib/gmain.c:3325 #42 g_main_context_dispatch (context=0x7fa7dc005000) at ../../../glib/gmain.c:4016 #43 0x00007fa7e52e8788 in g_main_context_iterate (context=context@entry=0x7fa7dc005000, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4092 #44 0x00007fa7e52e8853 in g_main_context_iteration (context=0x7fa7dc005000, may_block=may_block@entry=1) at ../../../glib/gmain.c:4157 #45 0x00007fa7e7405843 in QEventDispatcherGlib::processEvents (this=0x55e2e447d720, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #46 0x00007fa7e73aca4b in QEventLoop::exec (this=this@entry=0x7ffc7b51b5b0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136 #47 0x00007fa7e73b4fc6 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:118 #48 0x00007fa7e7834de0 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1860 #49 0x00007fa7e7f25f89 in QApplication::exec () at kernel/qapplication.cpp:2825 #50 0x00007fa7e94d07c5 in kdemain (argc=<optimized out>, argv=0x7ffc7b51b6b8) at ./src/main.cpp:206 #51 0x00007fa7e92c0cb2 in __libc_start_main (main=0x55e2e27a3060 <main>, argc=1, argv=0x7ffc7b51b878, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc7b51b868) at ../csu/libc-start.c:314 #52 0x000055e2e27a309e in _start () [Inferior 1 (process 4017) detached] Possible duplicates by query: bug 428384, bug 425753, bug 424909, bug 423506, bug 422194. Reported using DrKonqi
Thank you for this bug report. Do you have any idea how you managed to get items duplicated ? This is most likely the bug origin causing later a double free causing this crash.
I don't have any idea. Perhaps Dolphin has problems if there are too large files in trash? I had some large files then and total amount of used space in trash was around 400 MiB.
(In reply to Łukasz Konieczny from comment #2) > I don't have any idea. Perhaps Dolphin has problems if there are too large > files in trash? I had some large files then and total amount of used space > in trash was around 400 MiB. The issue comes from a logic issue. File size in inconsequential most likely. Is there double files in ~/.local/share/Trash/info/ as well compared to the trash "real" content in "~/.local/share/Trash/files" ?
Duplicate entries where also seen by other reporters; might be caused by the Tree view mode. Do you use this? See also bug 426657.
I have thrown 7.4 GiB of data into trash. Dolphin duplicates files in trash and crashes even when I go back from trash to earlier directory. @Christoph Feck [[[Duplicate entries where also seen by other reporters; might be caused by the Tree view mode. Do you use this?]]] No matter which view mode I use, Dolphin shows duplicated files in trash. I have thrown 3 files, Dolphin shows 6. @Méven Car [[[Is there double files in ~/.local/share/Trash/info/ as well compared to the trash "real" content in "~/.local/share/Trash/files" ?]]] In both directories mentioned by you I have now 3 files. There is everything OK. Dolphin only erratically shows 6 files in trash:/ Moreover, Dolphin doesn't show duplicated files every time. It only shows duplicated files every time I move to trash some large files. Now I have thrown to trash three files which are 7.4 GiB in total. Dolphin showed them duplicated, then crashed when I went back to earlier directory. When I launched Dolphin once again, those files in trash were not duplicated. I could then empty the trash successfully.
Perhaps the problem is caused by tree view mode. I wrote that problem occurs no matter which view mode I choose. But I had initially tree view mode. When I set view to icon view mode and threw those files to trash, they were not duplicated.
Resolving according to comment 6. *** This bug has been marked as a duplicate of bug 422282 ***