Bug 178844

Summary:	crashed during creation of the new association of *.aspx to be opend by kate
Product:	[Unmaintained] kdelibs	Reporter:	max5555 <max_ph>
Component:	general	Assignee:	kdelibs bugs <kdelibs-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	crash	CC:	andresbajotierra, cfeck, osezno141
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description max5555 2008-12-26 22:50:26 UTC

Version:           1.1 (using KDE 4.1.3)
OS:                Linux
Installed from:    Ubuntu Packages

I worked in Gnome 2.24.1
Dolphin has crashed during creation of the new association of *.aspx to be opend by kate.

I made right click on *.aspx file -> Open with -> I typed kate, then I checked "Remember application association for this type of file" after that,
as usually, a small window appeared showing something like "Changing system settings"
I switch to different application to do something. The Dolphin was hanged when I switched back.
The konsole window was opened in Dolphin during that.

There is a crash report:
Application: Dolphin (dolphin), signal SIGABRT
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[Thread debugging using libthread_db enabled]
[New Thread 0xb5f5c6c0 (LWP 8668)]
[New Thread 0xb3cd1b90 (LWP 9392)]
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[KCrash handler]
#6  0xb8081430 in __kernel_vsyscall ()
#7  0xb67ea880 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb67ec248 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb75ca795 in qt_message_output () from /usr/lib/libQtCore.so.4
#10 0xb75ca872 in qFatal () from /usr/lib/libQtCore.so.4
#11 0xb6593a32 in Solid::Device::listFromQuery () from /usr/lib/libsolid.so.4
#12 0xb6593c8b in Solid::Device::listFromQuery () from /usr/lib/libsolid.so.4
#13 0xb7e5e140 in KMountPoint::Private::finalizePossibleMountPoint ()
   from /usr/lib/libkio.so.5
#14 0xb7e5e5ec in KMountPoint::possibleMountPoints ()
   from /usr/lib/libkio.so.5
#15 0xb7e1e7c7 in ?? () from /usr/lib/libkio.so.5
#16 0xb7e1ec30 in ?? () from /usr/lib/libkio.so.5
#17 0xb7e1ee7a in KDirLister::~KDirLister () from /usr/lib/libkio.so.5
#18 0xb76d10ff in QObjectPrivate::deleteChildren ()
   from /usr/lib/libQtCore.so.4
#19 0xb76d9c43 in QObject::~QObject () from /usr/lib/libQtCore.so.4
#20 0xb7553af5 in ?? () from /usr/lib/libkfile.so.4
#21 0xb7559e2e in KFilePlacesModel::~KFilePlacesModel ()
   from /usr/lib/libkfile.so.4
#22 0xb8013748 in DolphinSettings::~DolphinSettings ()
   from /usr/lib/libdolphinprivate.so.4
#23 0xb801383a in ?? () from /usr/lib/libdolphinprivate.so.4
#24 0xb8013bfb in ?? () from /usr/lib/libdolphinprivate.so.4
#25 0xb67edd69 in exit () from /lib/tls/i686/cmov/libc.so.6
#26 0xb6cc3d2b in ?? () from /usr/lib/libQtGui.so.4
#27 0xb7b914da in KApplication::xioErrhandler () from /usr/lib/libkdeui.so.5
#28 0xb7b91516 in ?? () from /usr/lib/libkdeui.so.5
#29 0xb6709062 in _XIOError () from /usr/lib/libX11.so.6
#30 0xb67103f8 in _XGetXCBBuffer () from /usr/lib/libX11.so.6
#31 0xb67105fd in ?? () from /usr/lib/libX11.so.6
#32 0xb671137e in _XReply () from /usr/lib/libX11.so.6
#33 0xb6705ea1 in XTranslateCoordinates () from /usr/lib/libX11.so.6
#34 0xb6cc3b00 in QApplication::topLevelAt () from /usr/lib/libQtGui.so.4
#35 0xb6c658c5 in QApplication::widgetAt () from /usr/lib/libQtGui.so.4
#36 0xb6cc4a8b in QApplicationPrivate::leaveModal_sys ()
   from /usr/lib/libQtGui.so.4
#37 0xb6c6998e in QApplicationPrivate::leaveModal ()
   from /usr/lib/libQtGui.so.4
#38 0xb6cb5dc0 in QWidgetPrivate::hide_helper () from /usr/lib/libQtGui.so.4
#39 0xb6cbf0a0 in QWidget::setVisible () from /usr/lib/libQtGui.so.4
#40 0xb70d1964 in QDialog::setVisible () from /usr/lib/libQtGui.so.4
#41 0xb70cfdf6 in QDialog::done () from /usr/lib/libQtGui.so.4
#42 0xb70cf5dc in QDialog::accept () from /usr/lib/libQtGui.so.4
#43 0xb7f0d302 in KOpenWithDialog::accept () from /usr/lib/libkio.so.5
#44 0xb7f103dc in ?? () from /usr/lib/libkio.so.5
#45 0xb7f119be in KOpenWithDialog::qt_metacall () from /usr/lib/libkio.so.5
#46 0xb76d7a60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#47 0xb76d87e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#48 0xb7af23a7 in KDialog::okClicked () from /usr/lib/libkdeui.so.5
#49 0xb7af5378 in KDialog::slotButtonClicked () from /usr/lib/libkdeui.so.5
#50 0xb7af54e4 in KDialog::qt_metacall () from /usr/lib/libkdeui.so.5
#51 0xb7f1197a in KOpenWithDialog::qt_metacall () from /usr/lib/libkio.so.5
#52 0xb76d7a60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#53 0xb76d87e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#54 0xb76db873 in QSignalMapper::mapped () from /usr/lib/libQtCore.so.4
#55 0xb76dc0fd in QSignalMapper::map () from /usr/lib/libQtCore.so.4
#56 0xb76dc2ee in QSignalMapper::map () from /usr/lib/libQtCore.so.4
#57 0xb76dcbbb in QSignalMapper::qt_metacall () from /usr/lib/libQtCore.so.4
#58 0xb76d7a60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#59 0xb76d7e60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#60 0xb7251e61 in QAbstractButton::clicked () from /usr/lib/libQtGui.so.4
#61 0xb6fa5199 in ?? () from /usr/lib/libQtGui.so.4
#62 0xb6fa6d94 in ?? () from /usr/lib/libQtGui.so.4
#63 0xb6fa7026 in QAbstractButton::mouseReleaseEvent ()
   from /usr/lib/libQtGui.so.4
#64 0xb6cbb962 in QWidget::event () from /usr/lib/libQtGui.so.4
#65 0xb6fa503e in QAbstractButton::event () from /usr/lib/libQtGui.so.4
#66 0xb704b910 in QPushButton::event () from /usr/lib/libQtGui.so.4
#67 0xb6c638ec in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#68 0xb6c6c0e1 in QApplication::notify () from /usr/lib/libQtGui.so.4
#69 0xb7b91b2d in KApplication::notify () from /usr/lib/libkdeui.so.5
#70 0xb76c2e61 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#71 0xb6c6b36e in QApplicationPrivate::sendMouseEvent ()
   from /usr/lib/libQtGui.so.4
#72 0xb6cd5656 in ?? () from /usr/lib/libQtGui.so.4
#73 0xb6cd49e5 in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#74 0xb6cfe7aa in ?? () from /usr/lib/libQtGui.so.4
#75 0xb63186f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#76 0xb631bda3 in ?? () from /usr/lib/libglib-2.0.so.0
#77 0xb631bf61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#78 0xb76ed478 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#79 0xb6cfdea5 in ?? () from /usr/lib/libQtGui.so.4
#80 0xb76c152a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#81 0xb76c16ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#82 0xb70d0987 in QDialog::exec () from /usr/lib/libQtGui.so.4
#83 0xb7e6e769 in KRun::displayOpenWithDialog () from /usr/lib/libkio.so.5
#84 0xb7fca485 in ?? () from /usr/lib/libkonq.so.5
#85 0xb7fbd57b in ?? () from /usr/lib/libkonq.so.5
#86 0xb76d7a60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#87 0xb76d7e60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#88 0xb6c5d5f1 in QAction::triggered () from /usr/lib/libQtGui.so.4
#89 0xb6c5df5f in QAction::activate () from /usr/lib/libQtGui.so.4
#90 0xb703b564 in ?? () from /usr/lib/libQtGui.so.4
#91 0xb703bff2 in QMenu::mouseReleaseEvent () from /usr/lib/libQtGui.so.4
#92 0xb7c66b95 in KMenu::mouseReleaseEvent () from /usr/lib/libkdeui.so.5
#93 0xb6cbb962 in QWidget::event () from /usr/lib/libQtGui.so.4
#94 0xb703e2e9 in QMenu::event () from /usr/lib/libQtGui.so.4
#95 0xb6c638ec in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#96 0xb6c6c0e1 in QApplication::notify () from /usr/lib/libQtGui.so.4
#97 0xb7b91b2d in KApplication::notify () from /usr/lib/libkdeui.so.5
#98 0xb76c2e61 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#99 0xb6c6b36e in QApplicationPrivate::sendMouseEvent ()
   from /usr/lib/libQtGui.so.4
#100 0xb6cd58de in ?? () from /usr/lib/libQtGui.so.4
#101 0xb6cd49e5 in QApplication::x11ProcessEvent ()
   from /usr/lib/libQtGui.so.4
#102 0xb6cfe7aa in ?? () from /usr/lib/libQtGui.so.4
#103 0xb63186f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#104 0xb631bda3 in ?? () from /usr/lib/libglib-2.0.so.0
#105 0xb631bf61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#106 0xb76ed478 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#107 0xb6cfdea5 in ?? () from /usr/lib/libQtGui.so.4
#108 0xb76c152a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#109 0xb76c16ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#110 0xb703e0b1 in QMenu::exec () from /usr/lib/libQtGui.so.4
#111 0x080774bc in _start ()
#0  0xb8081430 in __kernel_vsyscall ()

Comment 1 Dario Andres 2008-12-27 00:22:31 UTC

The backtrace looks related to the one in bug 173325

Comment 2 Christoph Feck 2009-04-11 13:24:11 UTC

This does not look like a kdelibs bug. For sure, it is NOT a Solid bug. Looking at the backtrace the following happens:

* KOpenWithDialog is accepted and calls hide()
* Something in Qt fails to hide the widget, it runs through some widgetAt() and eventually causes an XIOError
* that XIOError calls exit()
* static globals are deleted there, including the Solid globals
* Dolphin also seems to have some global exit() handler installed (not sure why), and calls into KIO during ~DolphinSettings
* the Solid query from KIO now accesses an invalid Solid backend manager
-> crash
I am not sure why Qt would cause an XIOError, but that part of the backtrace should be send to Qt Software for inspection.

Comment 3 Christoph Feck 2009-04-16 06:15:31 UTC

Some googling revealed

    ../src/xcb_lock.c:77: _XGetXCBBuffer: Assertion `((int) ((xcb_req) - (dpy->request)) >= 0)' failed.

so it looks like Xlib bug https://bugs.freedesktop.org/show_bug.cgi?id=14211

https://bugs.launchpad.net/xorg-server/+bug/185311 suggests

    export LIBXCB_ALLOW_SLOPPY_LOCK=1

for a workaround.

Comment 4 Christoph Feck 2011-07-28 14:56:11 UTC

*** Bug 173325 has been marked as a duplicate of this bug. ***