Application: muon-installer (1.1.2 "Bullish Bandril")
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-9-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
When I click on install button, while another installation is running, Muon crashes.

-- Backtrace:
Application: Muon Software Center (muon-installer), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f53226bc780 (LWP 6046))]

Thread 2 (Thread 0x7f530ee25700 (LWP 6047)):
#0  0x00007f531e89ef03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f531b083104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f531b083639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5320376446 in QEventDispatcherGlib::processEvents (this=0x2640660, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f532034a882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f532034aabc in QEventLoop::exec (this=0x7f530ee24dd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f5320261924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007f532032cc2f in QInotifyFileSystemWatcherEngine::run (this=0x26e5530) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f5320264175 in QThreadPrivate::start (arg=0x26e5530) at thread/qthread_unix.cpp:320
#9  0x00007f531cad0d8c in start_thread (arg=0x7f530ee25700) at pthread_create.c:304
#10 0x00007f531e8ac04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f53226bc780 (LWP 6046)):
[KCrash Handler]
#6  Application::package (this=0x1) at /build/buildd/muon-1.1.2/installer/Application.cpp:91
#7  0x000000000041fd72 in ApplicationBackend::workerEvent (this=0x269a8b0, event=<value optimized out>) at /build/buildd/muon-1.1.2/installer/ApplicationBackend.cpp:171
#8  0x000000000041b19b in ApplicationBackend::qt_metacall (this=0x269a8b0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffc8f12c00) at /build/buildd/muon-1.1.2/obj-x86_64-linux-gnu/installer/moc_ApplicationBackend.cpp:116
#9  0x00007f53203605f8 in QMetaObject::activate (sender=0x2567db0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fffc8f12c00) at kernel/qobject.cpp:3287
#10 0x00007f5321bda5c1 in QApt::Backend::workerEvent(QApt::WorkerEvent) () from /usr/lib/libqapt.so.1
#11 0x00007f5321bda7ec in QApt::Backend::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libqapt.so.1
#12 0x00007f53203605f8 in QMetaObject::activate (sender=0x26fb960, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fffc8f12d10) at kernel/qobject.cpp:3287
#13 0x00007f5321bdb0e1 in ?? () from /usr/lib/libqapt.so.1
#14 0x00007f5321bdb56e in ?? () from /usr/lib/libqapt.so.1
#15 0x00007f53206a09fa in QDBusConnectionPrivate::deliverCall (this=0x2694850, object=0x26fb960, msg=..., metaTypes=..., slotIdx=12) at qdbusintegrator.cpp:942
#16 0x00007f53206aae4f in QDBusCallDeliveryEvent::placeMetaCall (this=<value optimized out>, object=<value optimized out>) at qdbusintegrator_p.h:103
#17 0x00007f532035f49a in QObject::event (this=0x26fb960, e=<value optimized out>) at kernel/qobject.cpp:1226
#18 0x00007f531f70c9e4 in QApplicationPrivate::notify_helper (this=0x255d420, receiver=0x26fb960, e=0x2e70b00) at kernel/qapplication.cpp:4462
#19 0x00007f531f7113aa in QApplication::notify (this=<value optimized out>, receiver=0x26fb960, e=0x2e70b00) at kernel/qapplication.cpp:4341
#20 0x00007f5321003866 in KApplication::notify (this=0x7fffc8f13b60, receiver=0x26fb960, event=0x2e70b00) at ../../kdeui/kernel/kapplication.cpp:311
#21 0x00007f532034b49c in QCoreApplication::notifyInternal (this=0x7fffc8f13b60, receiver=0x26fb960, event=0x2e70b00) at kernel/qcoreapplication.cpp:731
#22 0x00007f532034ec25 in sendEvent (receiver=0x0, event_type=0, data=0x2506b60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#23 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x2506b60) at kernel/qcoreapplication.cpp:1372
#24 0x00007f5320376253 in sendPostedEvents (s=0x255e860) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#25 postEventSourceDispatch (s=0x255e860) at kernel/qeventdispatcher_glib.cpp:277
#26 0x00007f531b082bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f531b0833a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f531b083639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f53203763ef in QEventDispatcherGlib::processEvents (this=0x2506340, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#30 0x00007f531f7b3dfe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#31 0x00007f532034a882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#32 0x00007f532034aabc in QEventLoop::exec (this=0x7fffc8f13af0, flags=...) at kernel/qeventloop.cpp:201
#33 0x00007f532034eecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#34 0x000000000041b6b0 in main (argc=5, argv=<value optimized out>) at /build/buildd/muon-1.1.2/installer/main.cpp:60

Reported using DrKonqi