Application: muon-discover (2.1.1)
KDE Platform Version: 4.11.2
Qt Version: 4.8.4
Operating System: Linux 3.11.0-14-generic x86_64
Distribution: Ubuntu 13.10

-- Information about the crash:
- What I was doing when the application crashed:
(1) I was installing something, hit the back arrow, and hovered over another application I was interested in
(2) Prior to installing something it asked for the root password, after entering M.Discover crashed again

The crash can be reproduced sometimes.

-- Backtrace:
Application: Muon Discover (muon-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f55eaa697c0 (LWP 26318))]

Thread 9 (Thread 0x7f55d0e2c700 (LWP 26319)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f55e437906b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f55e43790a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f55e053cf6e in start_thread (arg=0x7f55d0e2c700) at pthread_create.c:311
#4  0x00007f55e78619cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 8 (Thread 0x7f554fa26700 (LWP 26320)):
#0  0x00007f55e053f0aa in __GI___pthread_mutex_lock (mutex=0x7f5548000a60) at pthread_mutex_lock.c:116
#1  0x00007f55e00a43a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f55e00637f0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f55e0064565 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f55e00647ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f55e7fdaa76 in QEventDispatcherGlib::processEvents (this=0x7f55480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f55e7fac5ef in QEventLoop::processEvents (this=this@entry=0x7f554fa25d70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f55e7fac8e5 in QEventLoop::exec (this=this@entry=0x7f554fa25d70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f55e7eab88f in QThread::exec (this=this@entry=0x19e7810) at thread/qthread.cpp:542
#9  0x00007f55e7f8dd13 in QInotifyFileSystemWatcherEngine::run (this=0x19e7810) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f55e7eadf2f in QThreadPrivate::start (arg=0x19e7810) at thread/qthread_unix.cpp:338
#11 0x00007f55e053cf6e in start_thread (arg=0x7f554fa26700) at pthread_create.c:311
#12 0x00007f55e78619cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 7 (Thread 0x7f554e317700 (LWP 26321)):
#0  0x00007f55e00a40ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f55e00a43c9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f55e0063d40 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f55e00645c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f55e00647ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f55e7fdaa76 in QEventDispatcherGlib::processEvents (this=0x7f553c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f55e7fac5ef in QEventLoop::processEvents (this=this@entry=0x7f554e316db0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f55e7fac8e5 in QEventLoop::exec (this=this@entry=0x7f554e316db0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f55e7eab88f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#9  0x00007f55e7eadf2f in QThreadPrivate::start (arg=0x19eecb0) at thread/qthread_unix.cpp:338
#10 0x00007f55e053cf6e in start_thread (arg=0x7f554e317700) at pthread_create.c:311
#11 0x00007f55e78619cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7f554ce5f700 (LWP 26322)):
#0  0x00007f55e00a40ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f55e00a4399 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f55e0063c17 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f55e00645c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f55e00647ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f55e7fdaa76 in QEventDispatcherGlib::processEvents (this=0x7f55340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f55e7fac5ef in QEventLoop::processEvents (this=this@entry=0x7f554ce5edb0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f55e7fac8e5 in QEventLoop::exec (this=this@entry=0x7f554ce5edb0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f55e7eab88f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#9  0x00007f55e7eadf2f in QThreadPrivate::start (arg=0x1a8c010) at thread/qthread_unix.cpp:338
#10 0x00007f55e053cf6e in start_thread (arg=0x7f554ce5f700) at pthread_create.c:311
#11 0x00007f55e78619cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7f554118e700 (LWP 26324)):
#0  0x00007f55e7859de3 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f55e7f8aad1 in QProcessManager::run (this=0x7f55e8313540 <processManager()::processManager>) at io/qprocess_unix.cpp:245
#2  0x00007f55e7eadf2f in QThreadPrivate::start (arg=0x7f55e8313540 <processManager()::processManager>) at thread/qthread_unix.cpp:338
#3  0x00007f55e053cf6e in start_thread (arg=0x7f554118e700) at pthread_create.c:311
#4  0x00007f55e78619cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f552b0d1700 (LWP 26379)):
#0  0x00007f55e00a42ca in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f55e00a4749 in g_private_get () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f55e0089590 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f55e006479d in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f55e7fdaa76 in QEventDispatcherGlib::processEvents (this=0x7f551c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f55e7fac5ef in QEventLoop::processEvents (this=this@entry=0x7f552b0d0d90, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f55e7fac8e5 in QEventLoop::exec (this=this@entry=0x7f552b0d0d90, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f55e7eab88f in QThread::exec (this=this@entry=0x3a89740) at thread/qthread.cpp:542
#8  0x00007f55e9bcf19e in QDeclarativePixmapReader::run (this=0x3a89740) at util/qdeclarativepixmapcache.cpp:576
#9  0x00007f55e7eadf2f in QThreadPrivate::start (arg=0x3a89740) at thread/qthread_unix.cpp:338
#10 0x00007f55e053cf6e in start_thread (arg=0x7f552b0d1700) at pthread_create.c:311
#11 0x00007f55e78619cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f552a8d0700 (LWP 26380)):
#0  0x00007f55e00a40ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f55e00a43c9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f55e0063d40 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f55e00645c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f55e00647ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f55e7fdaa76 in QEventDispatcherGlib::processEvents (this=0x7f55200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f55e7fac5ef in QEventLoop::processEvents (this=this@entry=0x7f552a8cfdb0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f55e7fac8e5 in QEventLoop::exec (this=this@entry=0x7f552a8cfdb0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f55e7eab88f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#9  0x00007f55e7eadf2f in QThreadPrivate::start (arg=0x7f551c003030) at thread/qthread_unix.cpp:338
#10 0x00007f55e053cf6e in start_thread (arg=0x7f552a8d0700) at pthread_create.c:311
#11 0x00007f55e78619cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f552a0cf700 (LWP 3321)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f55e7eae3e4 in wait (time=30000, this=0x7f55340068c0) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=mutex@entry=0x7f5534006868, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f55e7ea18a5 in QThreadPoolThread::run (this=0x7f55200061e0) at concurrent/qthreadpool.cpp:141
#4  0x00007f55e7eadf2f in QThreadPrivate::start (arg=0x7f55200061e0) at thread/qthread_unix.cpp:338
#5  0x00007f55e053cf6e in start_thread (arg=0x7f552a0cf700) at pthread_create.c:311
#6  0x00007f55e78619cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f55eaa697c0 (LWP 26318)):
[KCrash Handler]
#6  Transaction::setProgress (this=0x0, progress=1) at /build/buildd/muon-2.1.1/libmuon/Transaction/Transaction.cpp:96
#7  0x00007f5540561de9 in ApplicationBackend::updateProgress (this=<optimized out>, percentage=<optimized out>) at /build/buildd/muon-2.1.1/libmuon/backends/ApplicationBackend/ApplicationBackend.cpp:282
#8  0x00007f554056100b in ApplicationBackend::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /build/buildd/muon-2.1.1/obj-x86_64-linux-gnu/libmuon/backends/ApplicationBackend/moc_ApplicationBackend.cpp:94
#9  0x00007f55e7fc1a58 in QMetaObject::activate (sender=0xf28f4a0, m=m@entry=0x7f554257a9c0 <QApt::Transaction::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x7fff3827ffb0) at kernel/qobject.cpp:3539
#10 0x00007f55423653d1 in QApt::Transaction::progressChanged (this=<optimized out>, _t1=1) at /build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transaction.cxx:324
#11 0x00007f554235823e in QApt::Transaction::updateProperty (this=0xf28f4a0, type=1, variant=...) at /build/buildd/qapt-2.0.65/src/transaction.cpp:561
#12 0x00007f5542365974 in QApt::Transaction::qt_static_metacall (_o=0xf28f4a0, _c=<optimized out>, _id=<optimized out>, _a=0x7fff382801d0) at /build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transaction.cxx:164
#13 0x00007f55e7fc1a58 in QMetaObject::activate (sender=sender@entry=0x100298f0, m=m@entry=0x7f554257aaa0 <OrgKubuntuQaptworkerTransactionInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7fff382801d0) at kernel/qobject.cpp:3539
#14 0x00007f55423663d6 in OrgKubuntuQaptworkerTransactionInterface::propertyChanged (this=this@entry=0x100298f0, _t1=14, _t2=...) at /build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transactiondbus.cxx:246
#15 0x00007f554236677c in OrgKubuntuQaptworkerTransactionInterface::qt_static_metacall (_o=_o@entry=0x100298f0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=4, _a=_a@entry=0x7fff38280490) at /build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transactiondbus.cxx:111
#16 0x00007f55423670f7 in OrgKubuntuQaptworkerTransactionInterface::qt_metacall (this=0x100298f0, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7fff38280490) at /build/buildd/qapt-2.0.65/obj-x86_64-linux-gnu/src/moc_transactiondbus.cxx:164
#17 0x00007f55e6d5ce36 in QDBusConnectionPrivate::deliverCall (this=0x23a7600, object=0x100298f0, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:951
#18 0x00007f55e7fc5dce in QObject::event (this=0x100298f0, e=<optimized out>) at kernel/qobject.cpp:1194
#19 0x00007f55e899edfc in QApplicationPrivate::notify_helper (this=this@entry=0x1812610, receiver=receiver@entry=0x100298f0, e=e@entry=0xc5e2240) at kernel/qapplication.cpp:4567
#20 0x00007f55e89a5470 in QApplication::notify (this=this@entry=0x7fff38280c30, receiver=receiver@entry=0x100298f0, e=e@entry=0xc5e2240) at kernel/qapplication.cpp:4353
#21 0x00007f55e96a8a6a in KApplication::notify (this=0x7fff38280c30, receiver=0x100298f0, event=0xc5e2240) at ../../kdeui/kernel/kapplication.cpp:311
#22 0x00007f55e7fad8bd in QCoreApplication::notifyInternal (this=0x7fff38280c30, receiver=receiver@entry=0x100298f0, event=event@entry=0xc5e2240) at kernel/qcoreapplication.cpp:946
#23 0x00007f55e7fb0e1f in sendEvent (event=0xc5e2240, receiver=0x100298f0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x17c91f0) at kernel/qcoreapplication.cpp:1570
#25 0x00007f55e7fb12c3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#26 0x00007f55e7fdb073 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#27 postEventSourceDispatch (s=0x1813930) at kernel/qeventdispatcher_glib.cpp:279
#28 0x00007f55e00643b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f55e0064708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f55e00647ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f55e7fdaa55 in QEventDispatcherGlib::processEvents (this=0x17caad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#32 0x00007f55e8a409d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#33 0x00007f55e7fac5ef in QEventLoop::processEvents (this=this@entry=0x7fff38280b40, flags=...) at kernel/qeventloop.cpp:149
#34 0x00007f55e7fac8e5 in QEventLoop::exec (this=this@entry=0x7fff38280b40, flags=...) at kernel/qeventloop.cpp:204
#35 0x00007f55e7fb1e5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#36 0x00007f55e899d34c in QApplication::exec () at kernel/qapplication.cpp:3828
#37 0x000000000040b4dc in main (argc=1, argv=0x7fff38280d88) at /build/buildd/muon-2.1.1/discover/main.cpp:86

The reporter indicates this bug may be a duplicate of or related to bug 327030.

Possible duplicates by query: bug 327030.

Reported using DrKonqi