[dolphin] [Bug 418475] New: Crash when hiding several offline NFS mount points

Alan Mimms bugzilla_noreply at kde.org
Wed Mar 4 15:47:22 GMT 2020 

https://bugs.kde.org/show_bug.cgi?id=418475

            Bug ID: 418475
           Summary: Crash when hiding several offline NFS mount points
           Product: dolphin
           Version: 19.04.3
          Platform: Ubuntu Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: alanm at unforgettable.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

Application: dolphin (19.04.3)

Qt Version: 5.12.4
Frameworks Version: 5.62.0
Operating System: Linux 5.3.0-40-generic x86_64
Distribution: Ubuntu 19.10

-- Information about the crash:
I "hide" several mountpoints in left sidebar that represent servers that are
offline at the time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa6b7520fc0 (LWP 10240))]

Thread 4 (Thread 0x7fa6ad50a700 (LWP 10245)):
#0  0x00007fa6bdbb12ac in __GI___libc_read (nbytes=16, buf=0x7fa6ad509b90,
fd=27) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fa6bdbb12ac in __GI___libc_read (fd=27, buf=0x7fa6ad509b90,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fa6b9ade63f in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa6b9a9658e in g_main_context_check () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa6b9a969e2 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa6b9a96b73 in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fa6bbb29653 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa6bbad05cb in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa6bb909a45 in QThread::exec() () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa6bb90ac92 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fa6ba361669 in start_thread (arg=<optimized out>) at
pthread_create.c:479
#11 0x00007fa6bdbc2323 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fa6b5957700 (LWP 10244)):
#0  0x00007fa6bdbb5c2f in __GI___poll (fds=0x7fa6a8011b10, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa6b9a96a3e in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa6b9a96b73 in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa6bbb29653 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa6bbad05cb in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa6bb909a45 in QThread::exec() () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa6bbdaaefa in  () at /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fa6bb90ac92 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa6ba361669 in start_thread (arg=<optimized out>) at
pthread_create.c:479
#9  0x00007fa6bdbc2323 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fa6b6671700 (LWP 10241)):
#0  0x00007fa6bdbb5c2f in __GI___poll (fds=0x7fa6b6670ca8, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa6b98de917 in  () at /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fa6b98e053a in xcb_wait_for_event () at
/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fa6b6e59288 in  () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fa6bb90ac92 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa6ba361669 in start_thread (arg=<optimized out>) at
pthread_create.c:479
#6  0x00007fa6bdbc2323 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fa6b7520fc0 (LWP 10240)):
[KCrash Handler]
#6  0x00007fa6bbafcc6e in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa6bda5c1fe in KItemModelBase::itemsChanged(KItemRangeList const&,
QSet<QByteArray> const&) () at /lib/x86_64-linux-gnu/libdolphinprivate.so.5
#8  0x00007fa6bda07f90 in KStandardItem::setDataValue(QByteArray const&,
QVariant const&) () at /lib/x86_64-linux-gnu/libdolphinprivate.so.5
#9  0x00007fa6bdcfdf58 in  () at /lib/x86_64-linux-gnu/libkdeinit5_dolphin.so
#10 0x00007fa6bdcfbfd5 in  () at /lib/x86_64-linux-gnu/libkdeinit5_dolphin.so
#11 0x00007fa6bbafd558 in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fa6bda5b44a in KItemListController::itemContextMenuRequested(int,
QPointF const&) () at /lib/x86_64-linux-gnu/libdolphinprivate.so.5
#13 0x00007fa6bd9ed484 in
KItemListController::mousePressEvent(QGraphicsSceneMouseEvent*, QTransform
const&) () at /lib/x86_64-linux-gnu/libdolphinprivate.so.5
#14 0x00007fa6bd9efa35 in KItemListController::processEvent(QEvent*, QTransform
const&) () at /lib/x86_64-linux-gnu/libdolphinprivate.so.5
#15 0x00007fa6bd9ff166 in KItemListView::event(QEvent*) () at
/lib/x86_64-linux-gnu/libdolphinprivate.so.5
#16 0x00007fa6bc5bca86 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007fa6bc5c5e00 in QApplication::notify(QObject*, QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007fa6bbad1a2a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007fa6bc8e6583 in  () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007fa6bc8e69c7 in  () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007fa6bc8eee7b in  () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007fa6bc8ef0af in
QGraphicsScene::mousePressEvent(QGraphicsSceneMouseEvent*) () at
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007fa6bc8f862a in QGraphicsScene::event(QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007fa6bc5bca86 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007fa6bc5c5e00 in QApplication::notify(QObject*, QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007fa6bbad1a2a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fa6bc9155bb in QGraphicsView::mousePressEvent(QMouseEvent*) () at
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007fa6bc5ffaac in QWidget::event(QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007fa6bc6ac782 in QFrame::event(QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007fa6bc9167b1 in QGraphicsView::viewportEvent(QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007fa6bbad173b in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007fa6bc5bca75 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007fa6bc5c6053 in QApplication::notify(QObject*, QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007fa6bbad1a2a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007fa6bc5c5157 in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) ()
at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007fa6bc61b14d in  () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007fa6bc61dfdc in  () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#38 0x00007fa6bc5bca86 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x00007fa6bc5c5e00 in QApplication::notify(QObject*, QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#40 0x00007fa6bbad1a2a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007fa6bbf92d73 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() at /lib/x86_64-linux-gnu/libQt5Gui.so.5
#42 0x00007fa6bbf945fb in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() at /lib/x86_64-linux-gnu/libQt5Gui.so.5
#43 0x00007fa6bbf6e26b in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() at /lib/x86_64-linux-gnu/libQt5Gui.so.5
#44 0x00007fa6b6e5a28e in  () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#45 0x00007fa6b9a9684d in g_main_context_dispatch () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007fa6b9a96ad0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007fa6b9a96b73 in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007fa6bbb29635 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007fa6bbad05cb in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#50 0x00007fa6bbad8336 in QCoreApplication::exec() () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#51 0x00007fa6bdcd9cc8 in kdemain () at
/lib/x86_64-linux-gnu/libkdeinit5_dolphin.so
#52 0x00007fa6bdac71e3 in __libc_start_main (main=0x565381482060, argc=2,
argv=0x7ffe1dc808a8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffe1dc80898) at ../csu/libc-start.c:308
#53 0x000056538148209e in _start ()
[Inferior 1 (process 10240) detached]

Reported using DrKonqi

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