KSysGuard - crash when remote host disconnects

[LimCore]

Binary package hint: kdebase-workspace

I monitored remote machine with ksysguard (via custom-command ssh)

When the machine got offline, the tree with list of sensors/hosts was drawn incorrectly.

After clicking a bit on that tree I got it to crash:

Application: System Monitor (ksysguard), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fe4677dd750 (LWP 32214))]

Thread 2 (Thread 0x7fe4566e3910 (LWP 32215)):
#0 0x00007fe4670e73c2 in select () from /lib/libc.so.6
#1 0x00007fe464447f31 in QProcessManager::run (this=0x7739b0) at io/qprocess_unix.cpp:296
#2 0x00007fe464382445 in QThreadPrivate::start (arg=0x7739b0) at thread/qthread_unix.cpp:188
#3 0x00007fe460d7da04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4 0x00007fe4670ee7bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fe4677dd750 (LWP 32214)):
[KCrash Handler]
#5 0x00007fe465506b69 in QModelIndex::parent (this=<value optimized out>, painter=<value optimized out>, option=<value optimized out>, index=<value optimized out>)
    at ../../include/QtCore/../../src/corelib/kernel/qabstractitemmodel.h:369
#6 QTreeView::drawRow (this=<value optimized out>, painter=<value optimized out>, option=<value optimized out>, index=<value optimized out>) at itemviews/qtreeview.cpp:1441
#7 0x00007fe46550f2d4 in QTreeView::drawTree (this=0xbf77d0, painter=<value optimized out>, region=<value optimized out>) at itemviews/qtreeview.cpp:1403
#8 0x00007fe46550fd83 in QTreeView::paintEvent (this=0xbf77d0, event=0x7fff6f4aca50) at itemviews/qtreeview.cpp:1281
#9 0x00007fe4650487a0 in QWidget::event (this=0xbf77d0, event=0x7fff6f4aca50) at kernel/qwidget.cpp:7687
#10 0x00007fe4653a42a6 in QFrame::event (this=0xbf77d0, e=0x7fff6f4aca50) at widgets/qframe.cpp:559
#11 0x00007fe4654d721b in QAbstractItemView::viewportEvent (this=0xbf77d0, event=0x7fff6f4aca50) at itemviews/qabstractitemview.cpp:1476
#12 0x00007fe46550e420 in QTreeView::viewportEvent (this=0xbf77d0, event=0x7fff6f4aca50) at itemviews/qtreeview.cpp:1266
#13 0x00007fe464467f47 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0xb073a0, event=0x7fff6f4aca50) at kernel/qcoreapplication.cpp:726
#14 0x00007fe464ff9ecc in QApplicationPrivate::notify_helper (this=0x76ee10, receiver=0xb073a0, e=0x7fff6f4aca50) at kernel/qapplication.cpp:4052
#15 0x00007fe4650011ce in QApplication::notify (this=0x76ed40, receiver=0xb073a0, e=0x7fff6f4aca50) at kernel/qapplication.cpp:4021
#16 0x00007fe465e77ab6 in KApplication::notify (this=0x76ed40, receiver=0xb073a0, event=0x7fff6f4aca50) at ../../kdeui/kernel/kapplication.cpp:302
#17 0x00007fe464468c2c in QCoreApplication::notifyInternal (this=0x76ed40, receiver=0xb073a0, event=0x7fff6f4aca50) at kernel/qcoreapplication.cpp:610
#18 0x00007fe46504fb93 in QCoreApplication::sendSpontaneousEvent (this=0xca5f90, pdev=0x781558, rgn=..., offset=<value optimized out>, flags=<value optimized out>,
    sharedPainter=<value optimized out>, backingStore=0x94c1c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#19 QWidgetPrivate::drawWidget (this=0xca5f90, pdev=0x781558, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=<value optimized out>, backingStore=0x94c1c0)
    at kernel/qwidget.cpp:5079
#20 0x00007fe4651c1dbe in QWidgetBackingStore::sync (this=0x94c1c0) at painting/qbackingstore.cpp:1261
#21 0x00007fe465041fa0 in QWidgetPrivate::syncBackingStore (this=0x94cb60) at kernel/qwidget.cpp:1603
#22 0x00007fe4650485b8 in QWidget::event (this=0x949750, event=0x1035ab0) at kernel/qwidget.cpp:7827
#23 0x00007fe4653be9db in QMainWindow::event (this=0x949750, event=0x1035ab0) at widgets/qmainwindow.cpp:1399
#24 0x00007fe465f83773 in KXmlGuiWindow::event (this=0xa7, ev=0xa00000001) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:131
#25 0x00007fe4673ef53e in ?? () from /usr/lib/libkdeinit4_ksysguard.so
#26 0x00007fe464ff9efc in QApplicationPrivate::notify_helper (this=0x76ee10, receiver=0x949750, e=0x1035ab0) at kernel/qapplication.cpp:4056
#27 0x00007fe4650011ce in QApplication::notify (this=0x76ed40, receiver=0x949750, e=0x1035ab0) at kernel/qapplication.cpp:4021
#28 0x00007fe465e77ab6 in KApplication::notify (this=0x76ed40, receiver=0x949750, event=0x1035ab0) at ../../kdeui/kernel/kapplication.cpp:302
#29 0x00007fe464468c2c in QCoreApplication::notifyInternal (this=0x76ed40, receiver=0x949750, event=0x1035ab0) at kernel/qcoreapplication.cpp:610
#30 0x00007fe46446980a in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x7564d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x7564d0) at kernel/qcoreapplication.cpp:1247
#32 0x00007fe464491533 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#33 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:210
#34 0x00007fe460fcebbe in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#35 0x00007fe460fd2588 in ?? () from /lib/libglib-2.0.so.0
#36 0x00007fe460fd26b0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#37 0x00007fe4644911a6 in QEventDispatcherGlib::processEvents (this=0x755d20, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#38 0x00007fe46508e4be in QGuiEventDispatcherGlib::processEvents (this=0xa7, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#39 0x00007fe464467532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#40 0x00007fe464467904 in QEventLoop::exec (this=0x7fff6f4ad980, flags=) at kernel/qeventloop.cpp:201
#41 0x00007fe464469ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#42 0x00007fe4673ee173 in kdemain () from /usr/lib/libkdeinit4_ksysguard.so
#43 0x00007fe46702dabd in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>,
    rtld_fini=<value optimized out>, stack_end=0x7fff6f4adf08) at libc-start.c:220
#44 0x0000000000400689 in _start ()

ProblemType: Bug
Architecture: amd64
Date: Sun Nov 29 19:35:29 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: ksysguard 4:4.3.2-0ubuntu7.1
ProcEnviron:
 LANGUAGE=
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-15.50-generic
SourcePackage: kdebase-workspace
Uname: Linux 2.6.31-15-generic x86_64

[Jonathan Thomas (echidnaman)]

Hi there!

Thanks for reporting this bug! Your bug seems to be a problem with the KDE program itself, and not with our KDE packages. While we appreciate your issue, it would be better if it was tracked at https://bugs.kde.org, so that the KDE developers can deal with this speedily and have direct communication with you as the reporter for more effective debugging.

Thanks!