Hi

I use Kubuntu 11.10 with latest KDE 4.8.1. Since I use KDE (beginning with KDE 4.6.x), Dolphin sometimes freezes on startup or during use. Maybe it is because of a mounted SMB share.

Terminal output of a frozen dolphin session:

Code: Select all

"/usr/bin/dolphin(19672)" Soprano: "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/dolphin(19672)" Soprano: "QLocalSocket::connectToServer: Invalid name"
"/usr/bin/dolphin(19672)" Soprano: "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/dolphin(19672)" Soprano: "QLocalSocket::connectToServer: Invalid name"
"/usr/bin/dolphin(19672)" Soprano: "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/dolphin(19672)" Soprano: "QLocalSocket::connectToServer: Invalid name"
QPixmap::scaled: Pixmap is a null pixmap


Screenshot of a frozen dolphin session:



Atalanttore

Does the folder you are trying to open contain a large number of files, in particular multimedia files?

If you try to open a folder containing a small number of files - on your local system - does this work correctly?

Also, have you tried reproducing under a new user?

Dolphin sometimes freezes immediately on startup.

bcooksley wrote:Does the folder you are trying to open contain a large number of files, in particular multimedia files?

If you try to open a folder containing a small number of files - on your local system - does this work correctly?

I do not try to open a folder, just starting Dolphin.

bcooksley wrote:Also, have you tried reproducing under a new user?

No.


Atalanttore

Can you reproduce the issue under a new user?

Also, if you activate the KDE File Picker (open KWrite for instance, and try to open a file) do you experience a freeze of the application?

bcooksley wrote:Can you reproduce the issue under a new user?

Not tried yet.

bcooksley wrote:Also, if you activate the KDE File Picker (open KWrite for instance, and try to open a file) do you experience a freeze of the application?

Yes, the file dialog is also frozen when Dolphin it is.


Atalanttore

Do you have any external mounts on your system, in particular on network media, which could potentially be unavailable?

Atalanttore wrote: Dolphin sometimes freezes on startup or during use. Maybe it is because of a mounted SMB share.

This SMB share could be unavailable.


Atalanttore

If you try under a new user (which, unless it is a system-wide mount point done through /etc/fstab shouldn't have the SMB mount in question affecting it) are you affected by this?

Without a SMB mount there is none of these problems.

Is this SMB mount a system-wide one, or one setup through KDE (ie. is it a smb:// url or a local url)

Ermm, the SMB share is just mounted via console after logging in.

Code: Select all

sudo mount -t cifs //192.168.2.200/ata /media/NAS/ata -o credentials=/home/ata/.smbcredentials,uid=1000,gid=1000

Okay, that is a "system-wide" mounted share as it were. This freeze is probably caused by the access to this share going down as the server is no longer reachable - or the server is not performing as expected.

KDE usually treats remote servers, even mounted in the file system, differently however so that shouldn't be an issue with regards to the required performance.

bcooksley wrote:KDE usually treats remote servers, even mounted in the file system, differently however so that shouldn't be an issue with regards to the required performance.

Okay, but Dolphin freezes again and again for minutes.

If you attach gdb to it when this has happened, what backtrace do you get?

I have to learn to use gdb first, but for now Dolphin 2.0 crashed today while it was frozen for about one minute. I got a crash log from Dr. Konqi.

Crash log:

Code: Select all

Application: Dolphin (dolphin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f72664bb7a0 (LWP 15438))]

Thread 3 (Thread 0x7f724ce61700 (LWP 15439)):
#0  0x00007f725e44772e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f725e447f82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f725e448429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7262182c26 in QEventDispatcherGlib::processEvents (this=0x18cd5e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f7262152402 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f7262152657 in QEventLoop::exec (this=0x7f724ce60db0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f7262052067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f726213217f in QInotifyFileSystemWatcherEngine::run (this=0x18ccf90) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f726205508b in QThreadPrivate::start (arg=0x18ccf90) at thread/qthread_unix.cpp:298
#9  0x00007f725e919efc in start_thread (arg=0x7f724ce61700) at pthread_create.c:304
#10 0x00007f7265da759d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f7247b7c700 (LWP 15440)):
#0  0x00007f725e91c034 in __pthread_mutex_lock (mutex=0x1c1a1a8) at pthread_mutex_lock.c:61
#1  0x00007f725e44775f in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f725e447f82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f725e448429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7262182c26 in QEventDispatcherGlib::processEvents (this=0x1afaad0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f7262152402 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f7262152657 in QEventLoop::exec (this=0x7f7247b7bdb0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f7262052067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f726213217f in QInotifyFileSystemWatcherEngine::run (this=0x17d0e40) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f726205508b in QThreadPrivate::start (arg=0x17d0e40) at thread/qthread_unix.cpp:298
#10 0x00007f725e919efc in start_thread (arg=0x7f7247b7c700) at pthread_create.c:304
#11 0x00007f7265da759d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f72664bb7a0 (LWP 15438)):
[KCrash Handler]
#6  ref (this=0x51) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h:121
#7  QString::operator= (this=0x7fff7a8adcc8, other=...) at tools/qstring.cpp:1406
#8  0x00007f726181304c in Solid::Backends::Fstab::FstabStorageAccess::FstabStorageAccess (this=0x7fff7a8adca0, device=0x1d7a1a0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../solid/solid/backends/fstab/fstabstorageaccess.cpp:40
#9  0x00007f7261811661 in Solid::Backends::Fstab::FstabDevice::emblems (this=<optimized out>) at ../../../solid/solid/backends/fstab/fstabdevice.cpp:80
#10 0x00007f726179f919 in Solid::Device::emblems (this=<optimized out>) at ../../../solid/solid/device.cpp:143
#11 0x00007f7265a7ad39 in KFilePlacesItem::deviceData (this=0x1d87ee0, role=1) at ../../kfile/kfileplacesitem.cpp:174
#12 0x00007f7265a7c0ee in KFilePlacesItem::data (this=<optimized out>, role=<optimized out>) at ../../kfile/kfileplacesitem.cpp:127
#13 0x00007f7265a7c4ae in KFilePlacesModel::data (this=<optimized out>, index=<optimized out>, role=<optimized out>) at ../../kfile/kfileplacesmodel.cpp:270
#14 0x00007f7265a7c8ea in KFilePlacesModel::icon (this=<optimized out>, index=<optimized out>) at ../../kfile/kfileplacesmodel.cpp:213
#15 0x00007f7265a9c3f0 in KDEPrivate::KUrlNavigatorPlacesSelector::updateMenu (this=0x1912500) at ../../kfile/kurlnavigatorplacesselector.cpp:79
#16 0x00007f7265a9c694 in KDEPrivate::KUrlNavigatorPlacesSelector::qt_metacall (this=0x1912500, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff7a8ae150) at ./kurlnavigatorplacesselector_p.moc:84
#17 0x00007f7262167c09 in QMetaObject::activate (sender=0x186b8d0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff7a8ae150) at kernel/qobject.cpp:3566
#18 0x00007f72621b3d64 in QAbstractItemModel::rowsRemoved (this=<optimized out>, _t1=<optimized out>, _t2=10, _t3=10) at .moc/release-shared/moc_qabstractitemmodel.cpp:211
#19 0x00007f726214df2d in QAbstractItemModel::endRemoveRows (this=0x186b8d0) at kernel/qabstractitemmodel.cpp:2487
#20 0x00007f7265a7fa95 in KFilePlacesModel::Private::_k_reloadBookmarks (this=0x1865120) at ../../kfile/kfileplacesmodel.cpp:432
#21 0x00007f7265a80f02 in KFilePlacesModel::qt_metacall (this=0x186b8d0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff7a8ae500) at ./kfileplacesmodel.moc:93
#22 0x00007f7262167c09 in QMetaObject::activate (sender=0x18cb000, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff7a8ae500) at kernel/qobject.cpp:3566
#23 0x00007f72617a0965 in Solid::DeviceNotifier::deviceRemoved (this=<optimized out>, _t1=<optimized out>) at ./devicenotifier.moc:94
#24 0x00007f72617a1b4d in Solid::DeviceManagerPrivate::_k_deviceRemoved (this=0x18cb000, udi=...) at ../../../solid/solid/devicemanager.cpp:207
#25 0x00007f72617a2309 in Solid::DeviceManagerPrivate::qt_metacall (this=0x18cb000, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff7a8ae720) at ./devicemanager_p.moc:80
#26 0x00007f7262167c09 in QMetaObject::activate (sender=0x18ccb70, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff7a8ae720) at kernel/qobject.cpp:3566
#27 0x00007f72617b56e5 in Solid::Ifaces::DeviceManager::deviceRemoved (this=<optimized out>, _t1=<optimized out>) at ./ifaces/devicemanager.moc:94
#28 0x00007f7261810a83 in Solid::Backends::Fstab::FstabManager::_k_updateDeviceList (this=0x18ccb70) at ../../../solid/solid/backends/fstab/fstabmanager.cpp:126
#29 0x00007f7261810da5 in Solid::Backends::Fstab::FstabManager::onMtabChanged (this=0x18ccb70) at ../../../solid/solid/backends/fstab/fstabmanager.cpp:136
#30 0x00007f726179ea44 in Solid::Backends::Fstab::FstabManager::qt_metacall (this=0x18ccb70, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff7a8ae900) at moc_fstabmanager.cpp:82
#31 0x00007f7262167c09 in QMetaObject::activate (sender=0x17920d0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3566
#32 0x00007f7261815676 in Solid::Backends::Fstab::FstabWatcher::onFileChanged (this=0x17920d0, path=...) at ../../../solid/solid/backends/fstab/fstabwatcher.cpp:104
#33 0x00007f726179eb21 in Solid::Backends::Fstab::FstabWatcher::qt_metacall (this=0x17920d0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff7a8aebd0) at moc_fstabwatcher.cpp:81
#34 0x00007f7262167c09 in QMetaObject::activate (sender=0x18cbd60, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff7a8aebd0) at kernel/qobject.cpp:3566
#35 0x00007f7262122ba2 in QFileSystemWatcher::fileChanged (this=<optimized out>, _t1=<optimized out>) at .moc/release-shared/moc_qfilesystemwatcher.cpp:109
#36 0x00007f726216cbc6 in QObject::event (this=0x18cbd60, e=<optimized out>) at kernel/qobject.cpp:1195
#37 0x00007f7262b47104 in notify_helper (e=0x1d03760, receiver=0x18cbd60, this=0x16b7f40) at kernel/qapplication.cpp:4555
#38 QApplicationPrivate::notify_helper (this=0x16b7f40, receiver=0x18cbd60, e=0x1d03760) at kernel/qapplication.cpp:4527
#39 0x00007f7262b4bf83 in QApplication::notify (this=0x7fff7a8af580, receiver=0x18cbd60, e=0x1d03760) at kernel/qapplication.cpp:4416
#40 0x00007f7263879bf6 in KApplication::notify (this=0x7fff7a8af580, receiver=0x18cbd60, event=0x1d03760) at ../../kdeui/kernel/kapplication.cpp:311
#41 0x00007f726215361c in QCoreApplication::notifyInternal (this=0x7fff7a8af580, receiver=0x18cbd60, event=0x1d03760) at kernel/qcoreapplication.cpp:876
#42 0x00007f72621573ea in sendEvent (event=0x1d03760, receiver=0x18cbd60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#43 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1691fe0) at kernel/qcoreapplication.cpp:1500
#44 0x00007f7262182793 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#45 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#46 0x00007f725e447a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f725e448258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f725e448429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#49 0x00007f7262182bbf in QEventDispatcherGlib::processEvents (this=0x16934a0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#50 0x00007f7262bec28e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#51 0x00007f7262152402 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#52 0x00007f7262152657 in QEventLoop::exec (this=0x7fff7a8af510, flags=...) at kernel/qeventloop.cpp:204
#53 0x00007f72621576e7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#54 0x00007f72660acfb7 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_dolphin.so
#55 0x00007f7265ce530d in __libc_start_main (main=0x400640, argc=5, ubp_av=0x7fff7a8afad8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff7a8afac8) at libc-start.c:226
#56 0x0000000000400671 in _start ()


Dolphin was no longer frozen after unmounting all SMB shares.


Atalanttore