Application: muon-updater (1.2.1 "Caustic Carrionite")
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
This can be reproduced. Requires at least one broken package in the database: Mark any package for installation, then unmark it, leaving 0 packages marked. Unmark All stays active. Click it; the app segfaults. In my case the broken package was kde-runtime-dbg, which had a broken dependency of kdelibs5-dbg (reported as not installable).

Doesn't crash if database contains no broken packages.

-- Backtrace:
Application: Muon Update Manager (muon-updater), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fd6fc279780 (LWP 28915))]

Thread 2 (Thread 0x7fd6e6ca4700 (LWP 28916)):
#0  0x00007fd6f9995773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fd6f531bf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd6f531c429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd6faddcf3e in QEventDispatcherGlib::processEvents (this=0x22d0e90, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fd6fadb0cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fd6fadb0ef7 in QEventLoop::exec (this=0x7fd6e6ca3dd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fd6facc827f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fd6fad93cbf in QInotifyFileSystemWatcherEngine::run (this=0x263db10) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fd6faccad05 in QThreadPrivate::start (arg=0x263db10) at thread/qthread_unix.cpp:331
#9  0x00007fd6f5de9efc in start_thread (arg=0x7fd6e6ca4700) at pthread_create.c:304
#10 0x00007fd6f99a189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd6fc279780 (LWP 28915)):
[KCrash Handler]
#6  0x000000000000000b in ?? ()
#7  0x00007fd6f8787935 in ?? () from /usr/lib/libapt-pkg.so.4.11
#8  0x00007fd6f878ce24 in pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/libapt-pkg.so.4.11
#9  0x00007fd6f8780e22 in pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/libapt-pkg.so.4.11
#10 0x00007fd6f8781244 in pkgCacheFile::Open(OpProgress*, bool) () from /usr/lib/libapt-pkg.so.4.11
#11 0x00007fd6fbc33ab7 in QApt::Cache::open (this=<optimized out>) at /build/buildd/qapt-1.2.1/src/cache.cpp:85
#12 0x00007fd6fbc2ee22 in QApt::Backend::reloadCache (this=<optimized out>) at /build/buildd/qapt-1.2.1/src/backend.cpp:184
#13 0x00007fd6fbe9429d in PackageWidget::reload (this=0x2224d60) at /build/buildd/muon-1.2.1/libmuon/PackageModel/PackageWidget.cpp:255
#14 0x0000000000409129 in UpdaterWidget::reload (this=0x2224d60) at /build/buildd/muon-1.2.1/updater/UpdaterWidget.cpp:48
#15 0x0000000000407fcc in UpdaterWindow::reload (this=0x2206050) at /build/buildd/muon-1.2.1/updater/UpdaterWindow.cpp:257
#16 0x00007fd6fbe7dd42 in MuonMainWindow::qt_metacall (this=0x2206050, _c=QMetaObject::InvokeMetaMethod, _id=25, _a=0x7fffa1a9e880) at /build/buildd/muon-1.2.1/obj-x86_64-linux-gnu/libmuon/MuonMainWindow.moc:152
#17 0x00000000004088f0 in UpdaterWindow::qt_metacall (this=0x2206050, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffa1a9e880) at /build/buildd/muon-1.2.1/obj-x86_64-linux-gnu/updater/UpdaterWindow.moc:91
#18 0x00007fd6fadc4eba in QMetaObject::activate (sender=0x2610890, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffa1a9e880) at kernel/qobject.cpp:3278
#19 0x00007fd6fa15bb62 in QAction::triggered (this=<optimized out>, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#20 0x00007fd6fa15bd4f in QAction::activate (this=0x2610890, event=<optimized out>) at kernel/qaction.cpp:1257
#21 0x00007fd6fa51a43a in QAbstractButtonPrivate::click (this=0x2257780) at widgets/qabstractbutton.cpp:528
#22 0x00007fd6fa51a6ec in QAbstractButton::mouseReleaseEvent (this=0x224de50, e=0x7fffa1a9efa0) at widgets/qabstractbutton.cpp:1121
#23 0x00007fd6fa5d72da in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:721
#24 0x00007fd6fa1b2c9a in QWidget::event (this=0x224de50, event=0x7fffa1a9efa0) at kernel/qwidget.cpp:8295
#25 0x00007fd6fa162424 in notify_helper (e=0x7fffa1a9efa0, receiver=0x224de50, this=0x20f27f0) at kernel/qapplication.cpp:4486
#26 QApplicationPrivate::notify_helper (this=0x20f27f0, receiver=0x224de50, e=0x7fffa1a9efa0) at kernel/qapplication.cpp:4458
#27 0x00007fd6fa167c6b in QApplication::notify (this=<optimized out>, receiver=0x224de50, e=0x7fffa1a9efa0) at kernel/qapplication.cpp:4047
#28 0x00007fd6fb7e7126 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#29 0x00007fd6fadb1afc in QCoreApplication::notifyInternal (this=0x7fffa1a9fc00, receiver=0x224de50, event=0x7fffa1a9efa0) at kernel/qcoreapplication.cpp:787
#30 0x00007fd6fa1633f2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#31 QApplicationPrivate::sendMouseEvent (receiver=0x224de50, event=0x7fffa1a9efa0, alienWidget=0x224de50, nativeWidget=0x223d680, buttonDown=0x224de50, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#32 0x00007fd6fa1e2945 in QETWidget::translateMouseEvent (this=0x223d680, event=<optimized out>) at kernel/qapplication_x11.cpp:4568
#33 0x00007fd6fa1e18be in QApplication::x11ProcessEvent (this=0x7fffa1a9fc00, event=0x7fffa1a9f7c0) at kernel/qapplication_x11.cpp:3690
#34 0x00007fd6fa20a412 in x11EventSourceDispatch (s=0x20f4470, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#35 0x00007fd6f531ba5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007fd6f531c258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fd6f531c429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fd6faddced6 in QEventDispatcherGlib::processEvents (this=0x20ec1e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#39 0x00007fd6fa20a07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x00007fd6fadb0cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#41 0x00007fd6fadb0ef7 in QEventLoop::exec (this=0x7fffa1a9fb90, flags=...) at kernel/qeventloop.cpp:201
#42 0x00007fd6fadb5789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#43 0x000000000040762f in main (argc=1, argv=0x7fffa1a9fe58) at /build/buildd/muon-1.2.1/updater/main.cpp:57

Possible duplicates by query: bug 289113, bug 284319, bug 280159, bug 276165, bug 274573.

Reported using DrKonqi