Bug 375599

Application: partitionmanager (2.2.1)

Qt Version: 5.6.2
Frameworks Version: 5.29.0
Operating System: Linux 4.9.4 x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
- What I was doing when the application crashed:
I wanted to create an LVM structure on an SD card in order to explore the program for l10n purposes. I emptied the card and created a new LVM primary partition. I waited for the process to finish, observed the lvm output in the meantime. Then the application crashed.

It happened twice in a row now. In the first run I deleted the card’s original partition table and created the LVM partition in one single queue. After I restarted the application, the LVM partition was actually there. Then I deleted it and applied that change. Now I created the partition again and waited for it to finish, resulting again in a crash.

The crash can be reproduced every time.

-- Backtrace:
Application: KDE-Partitionsverwaltung (partitionmanager), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd7c1c3e7c0 (LWP 2889))]

Thread 3 (Thread 0x7fd7bf4cd700 (LWP 2890)):
#0  0x00007fd7cc0d44ed in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fd7c79258f2 in poll (__timeout=-1, __nfds=1, __fds=0x7fd7bf4ccd00) at /usr/include/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x16fc170, cond=cond@entry=0x16fc1b0, vector=vector@entry=0x0, count=count@entry=0x0) at /var/tmp/portage/x11-libs/libxcb-1.12/work/libxcb-1.12/src/xcb_conn.c:479
#3  0x00007fd7c79276df in xcb_wait_for_event (c=0x16fc170) at /var/tmp/portage/x11-libs/libxcb-1.12/work/libxcb-1.12/src/xcb_in.c:693
#4  0x00007fd7c182d549 in QXcbEventReader::run (this=0x1706840) at qxcbconnection.cpp:1331
#5  0x00007fd7cc78fcac in QThreadPrivate::start (arg=0x1706840) at thread/qthread_unix.cpp:365
#6  0x00007fd7c963f444 in start_thread (arg=0x7fd7bf4cd700) at pthread_create.c:333
#7  0x00007fd7cc0dd5ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fd7b7fff700 (LWP 2891)):
#0  g_mutex_unlock (mutex=0x7fd7b0000990) at /var/tmp/portage/dev-libs/glib-2.48.2/work/glib-2.48.2/glib/gthread-posix.c:1347
#1  0x00007fd7c7db8520 in g_main_context_prepare (context=context@entry=0x7fd7b0000990, priority=priority@entry=0x7fd7b7ffec90) at /var/tmp/portage/dev-libs/glib-2.48.2/work/glib-2.48.2/glib/gmain.c:3440
#2  0x00007fd7c7db8f18 in g_main_context_iterate (context=context@entry=0x7fd7b0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.48.2/work/glib-2.48.2/glib/gmain.c:3820
#3  0x00007fd7c7db90fc in g_main_context_iteration (context=0x7fd7b0000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.48.2/work/glib-2.48.2/glib/gmain.c:3901
#4  0x00007fd7cc98237c in QEventDispatcherGlib::processEvents (this=0x7fd7b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x00007fd7cc933e5a in QEventLoop::exec (this=this@entry=0x7fd7b7ffedd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:206
#6  0x00007fd7cc78b4e4 in QThread::exec (this=this@entry=0x7fd7cacfd240 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:500
#7  0x00007fd7cac90235 in QDBusConnectionManager::run (this=0x7fd7cacfd240 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:189
#8  0x00007fd7cc78fcac in QThreadPrivate::start (arg=0x7fd7cacfd240 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:365
#9  0x00007fd7c963f444 in start_thread (arg=0x7fd7b7fff700) at pthread_create.c:333
#10 0x00007fd7cc0dd5ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fd7c1c3e7c0 (LWP 2889)):
[KCrash Handler]
#6  0x00007fd7cf903d40 in Partition::sectorsUsed (this=this@entry=0x1ca08f0) at /var/tmp/portage/sys-libs/kpmcore-2.2.1/work/kpmcore-2.2.1/src/core/partition.cpp:178
#7  0x00007fd7cf9360cc in Partition::used (this=0x1ca08f0) at /var/tmp/portage/sys-libs/kpmcore-2.2.1/work/kpmcore-2.2.1/src/core/partition.h:169
#8  PartWidget::paintEvent (this=0x1fa90f0) at /var/tmp/portage/sys-libs/kpmcore-2.2.1/work/kpmcore-2.2.1/src/gui/partwidget.cpp:96
#9  0x00007fd7cd20b9d8 in QWidget::event (this=0x1fa90f0, event=0x7fffd2612810) at kernel/qwidget.cpp:9117
#10 0x00007fd7cd1c592c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x1fa90f0, e=0x7fffd2612810) at kernel/qapplication.cpp:3804
#11 0x00007fd7cd1ca040 in QApplication::notify (this=0x7fffd2615110, receiver=0x1fa90f0, e=0x7fffd2612810) at kernel/qapplication.cpp:3561
#12 0x00007fd7cc9352d0 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x1fa90f0, event=event@entry=0x7fffd2612810) at kernel/qcoreapplication.cpp:1015
#13 0x00007fd7cd20484a in QCoreApplication::sendSpontaneousEvent (event=0x7fffd2612810, receiver=0x1fa90f0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#14 QWidgetPrivate::sendPaintEvent (this=this@entry=0x1fe95f0, toBePainted=...) at kernel/qwidget.cpp:5671
#15 0x00007fd7cd204ea0 in QWidgetPrivate::drawWidget (this=this@entry=0x1fe95f0, pdev=pdev@entry=0x1835550, rgn=..., offset=..., flags=flags@entry=36, sharedPainter=sharedPainter@entry=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5611
#16 0x00007fd7cd205c5d in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1811ba0, pdev=pdev@entry=0x1835550, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5806
#17 0x00007fd7cd204a47 in QWidgetPrivate::drawWidget (this=this@entry=0x1811ba0, pdev=pdev@entry=0x1835550, rgn=..., offset=..., flags=flags@entry=36, sharedPainter=sharedPainter@entry=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5663
#18 0x00007fd7cd205c5d in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1830920, pdev=pdev@entry=0x1835550, siblings=..., index=<optimized out>, index@entry=1, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5806
#19 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1830920, pdev=pdev@entry=0x1835550, siblings=..., index=1, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#20 0x00007fd7cd204a47 in QWidgetPrivate::drawWidget (this=this@entry=0x1830920, pdev=pdev@entry=0x1835550, rgn=..., offset=..., flags=flags@entry=36, sharedPainter=sharedPainter@entry=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5663
#21 0x00007fd7cd205c5d in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=<optimized out>, index@entry=9, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5806
#22 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=9, index@entry=10, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#23 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=10, index@entry=11, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#24 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=11, index@entry=12, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#25 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=12, index@entry=13, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#26 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=13, index@entry=16, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#27 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=16, index@entry=26, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#28 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=26, index@entry=27, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#29 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=27, index@entry=28, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#30 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=28, index@entry=32, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#31 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=32, index@entry=33, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#32 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=33, index@entry=34, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#33 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=34, index@entry=35, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#34 0x00007fd7cd205aa7 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x1776d00, pdev=pdev@entry=0x1835550, siblings=..., index=35, rgn=..., offset=..., flags=36, sharedPainter=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5793
#35 0x00007fd7cd204a47 in QWidgetPrivate::drawWidget (this=this@entry=0x1776d00, pdev=0x1835550, rgn=..., offset=..., flags=flags@entry=37, sharedPainter=sharedPainter@entry=0x0, backingStore=0x1b5f9c0) at kernel/qwidget.cpp:5663
#36 0x00007fd7cd1d2ea1 in QWidgetBackingStore::doSync (this=this@entry=0x1b5f9c0) at kernel/qwidgetbackingstore.cpp:1388
#37 0x00007fd7cd1d30f9 in QWidgetBackingStore::sync (this=0x1b5f9c0) at kernel/qwidgetbackingstore.cpp:1173
#38 0x00007fd7cd1f4f7f in QWidgetPrivate::syncBackingStore (this=0x1776d00) at kernel/qwidget.cpp:1947
#39 0x00007fd7cd20ba88 in QWidget::event (this=this@entry=0x1776bf0, event=event@entry=0x1bbbe10) at kernel/qwidget.cpp:9056
#40 0x00007fd7cd30a54b in QMainWindow::event (this=this@entry=0x1776bf0, event=event@entry=0x1bbbe10) at widgets/qmainwindow.cpp:1543
#41 0x00007fd7cf0ec6c7 in KMainWindow::event (this=this@entry=0x1776bf0, ev=ev@entry=0x1bbbe10) at /var/tmp/portage/kde-frameworks/kxmlgui-5.29.0/work/kxmlgui-5.29.0/src/kmainwindow.cpp:867
#42 0x00007fd7cf12a355 in KXmlGuiWindow::event (this=0x1776bf0, ev=0x1bbbe10) at /var/tmp/portage/kde-frameworks/kxmlgui-5.29.0/work/kxmlgui-5.29.0/src/kxmlguiwindow.cpp:118
#43 0x00007fd7cd1c592c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x1776bf0, e=0x1bbbe10) at kernel/qapplication.cpp:3804
#44 0x00007fd7cd1ca040 in QApplication::notify (this=0x7fffd2615110, receiver=0x1776bf0, e=0x1bbbe10) at kernel/qapplication.cpp:3561
#45 0x00007fd7cc9352d0 in QCoreApplication::notifyInternal2 (receiver=0x1776bf0, event=event@entry=0x1bbbe10) at kernel/qcoreapplication.cpp:1015
#46 0x00007fd7cc937533 in QCoreApplication::sendEvent (event=0x1bbbe10, receiver=<optimized out>) at kernel/qcoreapplication.h:225
#47 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x16ed650) at kernel/qcoreapplication.cpp:1650
#48 0x00007fd7cc937ad8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1508
#49 0x00007fd7cc9822f3 in postEventSourceDispatch (s=0x172d000) at kernel/qeventdispatcher_glib.cpp:270
#50 0x00007fd7c7db8d6d in g_main_dispatch (context=0x7fd7b80016f0) at /var/tmp/portage/dev-libs/glib-2.48.2/work/glib-2.48.2/glib/gmain.c:3154
#51 g_main_context_dispatch (context=context@entry=0x7fd7b80016f0) at /var/tmp/portage/dev-libs/glib-2.48.2/work/glib-2.48.2/glib/gmain.c:3769
#52 0x00007fd7c7db9050 in g_main_context_iterate (context=context@entry=0x7fd7b80016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.48.2/work/glib-2.48.2/glib/gmain.c:3840
#53 0x00007fd7c7db90fc in g_main_context_iteration (context=0x7fd7b80016f0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.48.2/work/glib-2.48.2/glib/gmain.c:3901
#54 0x00007fd7cc982367 in QEventDispatcherGlib::processEvents (this=0x172e410, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#55 0x00007fd7cc933e5a in QEventLoop::exec (this=this@entry=0x7fffd2614fe0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:206
#56 0x00007fd7cc93ba4c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1285
#57 0x00007fd7ccc5e6ac in QGuiApplication::exec () at kernel/qguiapplication.cpp:1607
#58 0x00007fd7cd1c25e5 in QApplication::exec () at kernel/qapplication.cpp:2979
#59 0x000000000041bf51 in main (argc=1, argv=<optimized out>) at /var/tmp/portage/sys-block/partitionmanager-2.2.1/work/partitionmanager-2.2.1/src/main.cpp:89

Reported using DrKonqi