Version: (using KDE 4.4.3) Compiler: gcc-4.4 4.4.3-4ubuntu5 amd64 OS: Linux Installed from: Ubuntu Packages After some time I began to receive message "The process for the file protocol died unexpectedly" on every attempt to open File dialogue or tab in Dolphin. This situation first started in kubuntu 9.10 and continued in kubuntu 10.04 Gtk applications work with file system as usual. $ lsb_release -rd Description: Ubuntu 10.04 LTS Release: 10.04 Qt: 4.6.2 KDE: 4.4.3 (KDE 4.4.3) The system is up-to-date. ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: kdebase ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2 Uname: Linux 2.6.32-22-generic x86_64 Architecture: amd64 Date: Thu May 13 22:37:10 2010 InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1) ProcEnviron: LANGUAGE= PATH=(custom, user) LANG=ru_RU.UTF-8 SHELL=/bin/bash SourcePackage: meta-kde Launchpad Bug #580131: https://bugs.launchpad.net/ubuntu/+source/meta-kde/+bug/580131
$ tail -n 100 .xsession-errors kdeinit4: preparing to launch /usr/lib/kde4/kio_file.so kio_file(3146)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) kmozillahelper(1839): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 kmozillahelper(1839): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 konqueror(2893) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib/kde4/kio_file.so kio_file(3153)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) kmozillahelper(1839)/kdecore (services) KMimeTypeFactory::parseMagic: Now parsing "/usr/share/mime/magic" kmozillahelper(1839)/kdecore (services) KMimeTypeFactory::parseMagic: Now parsing "/home/seajey/.local/share/mime/magic" konqueror(2893) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib/kde4/kio_file.so kio_file(3164)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) kmozillahelper(1839): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 kmozillahelper(1839): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 kmozillahelper(1839) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib/kde4/kio_file.so kio_file(3165)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) kmozillahelper(1839) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib/kde4/kio_file.so kio_file(3166)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) kmozillahelper(1839) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib/kde4/kio_file.so kio_file(3167)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) kmozillahelper(1839): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 kmozillahelper(1839): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 kwin(1539) KWin::Client::readUserTimeMapTimestamp: User timestamp, initial: 8213340 kwin(1539) KWin::Client::readUserTimeMapTimestamp: User timestamp, ASN: 8213340 kwin(1539) KWin::Client::readUserTimeMapTimestamp: User timestamp, final: 'ID: 92288011 ;WMCLASS: "kmozillahelper" : "kmozillahelper" ;Caption: "Невозможно открыть файл — KMozillaHelper" ' : 8213340 kwin(1539) KWin::Workspace::allowClientActivation: Activation: Belongs to active application kwin(1539) KWin::Workspace::updateClientArea: screens: 1 desktops: 6 kwin(1539) KWin::Workspace::updateClientArea: Done. kwin(1539) KWin::Workspace::updateClientArea: screens: 1 desktops: 6 kwin(1539) KWin::Workspace::updateClientArea: Done. konqueror(2893) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib/kde4/kio_file.so kio_file(3168)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) kmozillahelper(1839): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 kmozillahelper(1839): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 kwin(1539) KWin::Workspace::updateClientArea: screens: 1 desktops: 6 kwin(1539) KWin::Workspace::updateClientArea: Done. Critical: ktorrent(1614): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 Critical: ktorrent(1614): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 Critical: ktorrent(1614): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 Critical: ktorrent(1614): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 Critical: ktorrent(1614): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 Critical: ktorrent(1614): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 Critical: ktorrent(1614): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 Critical: ktorrent(1614): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 kdeinit4: preparing to launch /usr/lib/kde4/kio_http.so kdeinit4: preparing to launch /usr/lib/kde4/kio_http.so kio_http(3169)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) kio_http(3170)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) kwin(1539) KWin::Client::readUserTimeMapTimestamp: User timestamp, initial: 8225837 kwin(1539) KWin::Client::readUserTimeMapTimestamp: User timestamp, ASN: 8225837 kwin(1539) KWin::Client::readUserTimeMapTimestamp: User timestamp, final: 'ID: 92290993 ;WMCLASS: "kmozillahelper" : "kmozillahelper" ;Caption: "Загрузка файла" ' : 8225837 kwin(1539) KWin::Workspace::allowClientActivation: Activation: Belongs to active application kwin(1539) KWin::Workspace::updateClientArea: screens: 1 desktops: 6 kwin(1539) KWin::Workspace::updateClientArea: Done. kmozillahelper(1839): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 kmozillahelper(1839): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 kmozillahelper(1839): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 kmozillahelper(1839): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 kmozillahelper(1839) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib/kde4/kio_trash.so kmozillahelper(1839) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib/kde4/kio_file.so kio_trash(3172)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) kio_file(3173)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) konqueror(2893) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib/kde4/kio_file.so kio_file(3174)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) kwin(1539) KWin::Client::readUserTimeMapTimestamp: User timestamp, initial: 8236253 kwin(1539) KWin::Client::readUserTimeMapTimestamp: User timestamp, ASN: 8236253 kwin(1539) KWin::Client::readUserTimeMapTimestamp: User timestamp, final: 'ID: 92293372 ;WMCLASS: "kmozillahelper" : "kmozillahelper" ;Caption: "Ошибка — KMozillaHelper" ' : 8236253 kwin(1539) KWin::Workspace::allowClientActivation: Activation: Belongs to active application kwin(1539) KWin::Workspace::updateClientArea: screens: 1 desktops: 6 kwin(1539) KWin::Workspace::updateClientArea: Done. kwin(1539) KWin::Workspace::updateClientArea: screens: 1 desktops: 6 kwin(1539) KWin::Workspace::updateClientArea: Done. kwin(1539) KWin::Workspace::updateClientArea: screens: 1 desktops: 6 kwin(1539) KWin::Workspace::updateClientArea: Done. konqueror(2893) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib/kde4/kio_file.so kio_file(3175)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) kglobalaccel(1533) KGlobalAccelImpl::x11Event: Got XKeyPress event kglobalaccel(1533) GlobalShortcutsRegistry::keyPressed: "F12" = "toggle-window-state" kwin(1539) KWin::Client::readUserTimeMapTimestamp: User timestamp, initial: 8254226 kwin(1539) KWin::Client::readUserTimeMapTimestamp: User timestamp, ASN: 8254226 kwin(1539) KWin::Client::readUserTimeMapTimestamp: User timestamp, final: 'ID: 44040269 ;WMCLASS: "yakuake" : "yakuake" ;Caption: "Yakuake" ' : 8254226 kwin(1539) KWin::Workspace::allowClientActivation: Activation, compared: 'ID: 44040269 ;WMCLASS: "yakuake" : "yakuake" ;Caption: "Yakuake" ' : 8254226 : 8252886 : true kwin(1539) KWin::Workspace::updateClientArea: screens: 1 desktops: 6 kwin(1539) KWin::Workspace::updateClientArea: Done. konqueror(2893) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib/kde4/kio_file.so kio_file(3180)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) quassel(1592): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 quassel(1592): Failed to lock file "/var/tmp/kdecache-seajey/kpc/kde-icon-cache.lock" , last result = 2 konqueror(2893) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib/kde4/kio_file.so kio_file(3192)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" )
Synaptic launched with root rights tells this on exit: E: ERROR: Can not open /root/.synaptic/synaptic.conf for write - ofstream (30: Filesystem is read only) E: ERROR: Can not open /root/.synaptic/options for write - ofstream (30: Filesystem is read only)
Confirmed on openSUSE 11.2 with KDE SC 4.4.5 The problem occurs after some time (for ex. last time it was 18 idle hours, while i was asleep) When i try to navigate to other dir in dolphin, here what i got : ******* xsession-errors ************* dolphin(3746): Failed to lock file "/var/tmp/kdecache-u1/kpc/kde-icon-cache.lock" , last result = 2 ... ^^^ repeated several times dolphin(3746): Failed to lock file "/var/tmp/kdecache-u1/kpc/kde-icon-cache.lock" , last result = 2 dolphin(3746) KIO::SlavePrivate::SlavePrivate: Connection server not listening, could not connect kdeinit4: preparing to launch /usr/lib64/kde4/kio_file.so kio_file(3873)/kio (KIOConnection) KIO::Connection::connectToRemote: Unknown requested KIO::Connection protocol=' "" ' ( "" ) ******************************* In dolphin window there was few tabs, one of them using fish:/ protocol (if this matters) Neither local, nor remote browsing does not work.
There was no evidence of this bug in Kubuntu 11.04 with KDE 4.6 and 4.7 I think it could be closed now.