Bug 300119 - Muon crashed after adding new software source
Summary: Muon crashed after adding new software source
Status: RESOLVED DUPLICATE of bug 282923
Alias: None
Product: muon
Classification: Unmaintained
Component: muon (show other bugs)
Version: unspecified
Platform: unspecified Linux
: NOR normal
Target Milestone: ---
Assignee: Jonathan Thomas
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-05-16 08:52 UTC by Maarten Bezemer
Modified: 2012-05-16 11:22 UTC (History)
0 users

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Description Maarten Bezemer 2012-05-16 08:52:34 UTC 
Application: muon (1.3.1)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic x86_64
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:

* I added ppa:ubuntu-wine/ppa as new software source.
* Deselected the source line for wine
* Closed the dialog

And Muon crashed, just after its window (the list of available packages) became empty, as it does when updating the packages.

I restarted Muon, that seemed to be worken, but when I clicked 'Check for Updates' it crashed again.

After submitting this report, I'll check whether the backtrace is different and add that one as well to this report.

PS DrKonqi could not send the bug report: "There is no component named 'general' in the 'muon' product." So, I have send it manually... But I suppose some DrKonqi/Muon configuration needs to be fixed as well...?

-- Backtrace:
Application: Muon Package Manager (muon), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa872d5a780 (LWP 30249))]

Thread 2 (Thread 0x7fa85c865700 (LWP 30251)):
#0  0x00007fa86fd820bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fa86b01f88f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa86afe4abd in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa86afe4f96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa86afe5124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa8711d2426 in QEventDispatcherGlib::processEvents (this=0x7fa8580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fa8711a1c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fa8711a1ed7 in QEventLoop::exec (this=0x7fa85c864dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fa8710a0fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fa8711819ff in QInotifyFileSystemWatcherEngine::run (this=0x19d1b00) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fa8710a3fcb in QThreadPrivate::start (arg=0x19d1b00) at thread/qthread_unix.cpp:298
#11 0x00007fa86b8a9e9a in start_thread (arg=0x7fa85c865700) at pthread_create.c:308
#12 0x00007fa86fd8f4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fa872d5a780 (LWP 30249)):
[KCrash Handler]
#6  0x00007fa86d33a3ff in debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator&, FileFd&, std::string) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#7  0x00007fa86d35451f in debPackagesIndex::Merge(pkgCacheGenerator&, OpProgress*) const () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#8  0x00007fa86d2f4cb7 in ?? () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#9  0x00007fa86d2f7b34 in pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#10 0x00007fa86d2ee4da in pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#11 0x00007fa86d2ee904 in pkgCacheFile::Open(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#12 0x00007fa87227067a in QApt::Cache::open (this=<optimized out>) at /build/buildd/qapt-1.3.1/src/cache.cpp:85
#13 0x00007fa87226b9c2 in QApt::Backend::reloadCache (this=<optimized out>) at /build/buildd/qapt-1.3.1/src/backend.cpp:193
#14 0x000000000042dded in PackageWidget::reload (this=0x141cd90) at /build/buildd/muon-1.3.1/muon/PackageModel/PackageWidget.cpp:245
#15 0x000000000041c559 in ManagerWidget::reload (this=0x141cd90) at /build/buildd/muon-1.3.1/muon/ManagerWidget.cpp:61
#16 0x000000000041b2e3 in MainWindow::reload (this=0x1431e40) at /build/buildd/muon-1.3.1/muon/MainWindow.cpp:440
#17 0x000000000041bee3 in MainWindow::workerEvent (this=0x1431e40, event=QApt::CacheUpdateFinished) at /build/buildd/muon-1.3.1/muon/MainWindow.cpp:323
#18 0x00007fa8711b7281 in QMetaObject::activate (sender=0x16aca10, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff9480c7d0) at kernel/qobject.cpp:3547
#19 0x00007fa872288a91 in QApt::Backend::workerEvent (this=<optimized out>, _t1=QApt::CacheUpdateFinished) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/moc_backend.cxx:265
#20 0x00007fa8711b7281 in QMetaObject::activate (sender=0x16b06a0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff9480c920) at kernel/qobject.cpp:3547
#21 0x00007fa872289a51 in OrgKubuntuQaptworkerInterface::workerEvent (this=<optimized out>, _t1=2) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/workerdbus.moc:242
#22 0x00007fa87228a6e6 in OrgKubuntuQaptworkerInterface::qt_static_metacall (_o=0x16b06a0, _c=<optimized out>, _id=8, _a=0x7fff9480ce50) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/workerdbus.moc:108
#23 0x00007fa87228b20b in OrgKubuntuQaptworkerInterface::qt_metacall (this=0x16b06a0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff9480ce50) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/workerdbus.moc:176
#24 0x00007fa86ef3337b in QDBusConnectionPrivate::deliverCall (this=0x16bb1b0, object=0x16b06a0, msg=..., metaTypes=..., slotIdx=13) at qdbusintegrator.cpp:947
#25 0x00007fa8711bc446 in QObject::event (this=0x16b06a0, e=<optimized out>) at kernel/qobject.cpp:1195
#26 0x00007fa870525894 in notify_helper (e=0x29e4f30, receiver=0x16b06a0, this=0x12c7590) at kernel/qapplication.cpp:4559
#27 QApplicationPrivate::notify_helper (this=0x12c7590, receiver=0x16b06a0, e=0x29e4f30) at kernel/qapplication.cpp:4531
#28 0x00007fa87052a713 in QApplication::notify (this=0x7fff9480d850, receiver=0x16b06a0, e=0x29e4f30) at kernel/qapplication.cpp:4420
#29 0x00007fa871c02b46 in KApplication::notify (this=0x7fff9480d850, receiver=0x16b06a0, event=0x29e4f30) at ../../kdeui/kernel/kapplication.cpp:311
#30 0x00007fa8711a2e9c in QCoreApplication::notifyInternal (this=0x7fff9480d850, receiver=0x16b06a0, event=0x29e4f30) at kernel/qcoreapplication.cpp:876
#31 0x00007fa8711a6c6a in sendEvent (event=0x29e4f30, receiver=0x16b06a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x129b790) at kernel/qcoreapplication.cpp:1500
#33 0x00007fa8711d1f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#34 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#35 0x00007fa86afe4c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007fa86afe5060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fa86afe5124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fa8711d23bf in QEventDispatcherGlib::processEvents (this=0x129d070, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#39 0x00007fa8705cdd5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x00007fa8711a1c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#41 0x00007fa8711a1ed7 in QEventLoop::exec (this=0x7fff9480d7e0, flags=...) at kernel/qeventloop.cpp:204
#42 0x00007fa8711a6f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#43 0x0000000000418ffb in main (argc=1, argv=0x7fff9480da98) at /build/buildd/muon-1.3.1/muon/main.cpp:56

Possible duplicates by query: bug 300112, bug 299800, bug 282923.

Report to https://bugs.kde.org

Reproducible: Always
Comment 1 Maarten Bezemer 2012-05-16 08:54:37 UTC 
I second crash, I slightly different (in Thread 2):

Application: Muon Package Manager (muon), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f08bf5fb780 (LWP 31866))]

Thread 2 (Thread 0x7f08a9106700 (LWP 31868)):
#0  0x00007f08bc624b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f08b7885ff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f08b7886124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f08bda73426 in QEventDispatcherGlib::processEvents (this=0x7f08a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f08bda42c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f08bda42ed7 in QEventLoop::exec (this=0x7f08a9105dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f08bd941fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f08bda229ff in QInotifyFileSystemWatcherEngine::run (this=0x2198bb0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f08bd944fcb in QThreadPrivate::start (arg=0x2198bb0) at thread/qthread_unix.cpp:298
#9  0x00007f08b814ae9a in start_thread (arg=0x7f08a9106700) at pthread_create.c:308
#10 0x00007f08bc6304bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f08bf5fb780 (LWP 31866)):
[KCrash Handler]
#6  0x00007f08b9bdb3ff in debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator&, FileFd&, std::string) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#7  0x00007f08b9bf551f in debPackagesIndex::Merge(pkgCacheGenerator&, OpProgress*) const () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#8  0x00007f08b9b95cb7 in ?? () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#9  0x00007f08b9b98b34 in pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#10 0x00007f08b9b8f4da in pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#11 0x00007f08b9b8f904 in pkgCacheFile::Open(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#12 0x00007f08beb1167a in QApt::Cache::open (this=<optimized out>) at /build/buildd/qapt-1.3.1/src/cache.cpp:85
#13 0x00007f08beb0c9c2 in QApt::Backend::reloadCache (this=<optimized out>) at /build/buildd/qapt-1.3.1/src/backend.cpp:193
#14 0x000000000042dded in PackageWidget::reload (this=0x1c23720) at /build/buildd/muon-1.3.1/muon/PackageModel/PackageWidget.cpp:245
#15 0x000000000041c559 in ManagerWidget::reload (this=0x1c23720) at /build/buildd/muon-1.3.1/muon/ManagerWidget.cpp:61
#16 0x000000000041b2e3 in MainWindow::reload (this=0x1c22ab0) at /build/buildd/muon-1.3.1/muon/MainWindow.cpp:440
#17 0x000000000041bee3 in MainWindow::workerEvent (this=0x1c22ab0, event=QApt::CacheUpdateFinished) at /build/buildd/muon-1.3.1/muon/MainWindow.cpp:323
#18 0x00007f08bda58281 in QMetaObject::activate (sender=0x1bfa190, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffef95b310) at kernel/qobject.cpp:3547
#19 0x00007f08beb29a91 in QApt::Backend::workerEvent (this=<optimized out>, _t1=QApt::CacheUpdateFinished) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/moc_backend.cxx:265
#20 0x00007f08bda58281 in QMetaObject::activate (sender=0x1e6f380, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffef95b460) at kernel/qobject.cpp:3547
#21 0x00007f08beb2aa51 in OrgKubuntuQaptworkerInterface::workerEvent (this=<optimized out>, _t1=2) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/workerdbus.moc:242
#22 0x00007f08beb2b6e6 in OrgKubuntuQaptworkerInterface::qt_static_metacall (_o=0x1e6f380, _c=<optimized out>, _id=8, _a=0x7fffef95b990) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/workerdbus.moc:108
#23 0x00007f08beb2c20b in OrgKubuntuQaptworkerInterface::qt_metacall (this=0x1e6f380, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffef95b990) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/workerdbus.moc:176
#24 0x00007f08bb7d437b in QDBusConnectionPrivate::deliverCall (this=0x1e74050, object=0x1e6f380, msg=..., metaTypes=..., slotIdx=13) at qdbusintegrator.cpp:947
#25 0x00007f08bda5d446 in QObject::event (this=0x1e6f380, e=<optimized out>) at kernel/qobject.cpp:1195
#26 0x00007f08bcdc6894 in notify_helper (e=0x2cc6f80, receiver=0x1e6f380, this=0x1ab1590) at kernel/qapplication.cpp:4559
#27 QApplicationPrivate::notify_helper (this=0x1ab1590, receiver=0x1e6f380, e=0x2cc6f80) at kernel/qapplication.cpp:4531
#28 0x00007f08bcdcb713 in QApplication::notify (this=0x7fffef95c390, receiver=0x1e6f380, e=0x2cc6f80) at kernel/qapplication.cpp:4420
#29 0x00007f08be4a3b46 in KApplication::notify (this=0x7fffef95c390, receiver=0x1e6f380, event=0x2cc6f80) at ../../kdeui/kernel/kapplication.cpp:311
#30 0x00007f08bda43e9c in QCoreApplication::notifyInternal (this=0x7fffef95c390, receiver=0x1e6f380, event=0x2cc6f80) at kernel/qcoreapplication.cpp:876
#31 0x00007f08bda47c6a in sendEvent (event=0x2cc6f80, receiver=0x1e6f380) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1a85790) at kernel/qcoreapplication.cpp:1500
#33 0x00007f08bda72f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#34 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#35 0x00007f08b7885c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f08b7886060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f08b7886124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f08bda733bf in QEventDispatcherGlib::processEvents (this=0x1a87070, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#39 0x00007f08bce6ed5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x00007f08bda42c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#41 0x00007f08bda42ed7 in QEventLoop::exec (this=0x7fffef95c320, flags=...) at kernel/qeventloop.cpp:204
#42 0x00007f08bda47f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#43 0x0000000000418ffb in main (argc=1, argv=0x7fffef95c5d8) at /build/buildd/muon-1.3.1/muon/main.cpp:56
Comment 2 Maarten Bezemer 2012-05-16 08:56:52 UTC 
And now muon-updater also crashes...
I'll post the /etc/apt/sources.list.d/ubuntu-wine-ppa-precise.list contents as well, as this is the change I made (see post #1):
deb http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu precise main
# deb-src http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu precise main


Application: Muon Update Manager (muon-updater), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f24d7ba4780 (LWP 30466))]

Thread 3 (Thread 0x7f24c2c77700 (LWP 30467)):
#0  0x00007f24d0706f69 in __pthread_mutex_lock (mutex=0x7f24bc000a60) at pthread_mutex_lock.c:92
#1  0x00007f24cfe7b561 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f24cfe3fa3e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f24cfe3ff96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f24cfe40124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f24d5f46426 in QEventDispatcherGlib::processEvents (this=0x7f24bc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f24d5f15c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f24d5f15ed7 in QEventLoop::exec (this=0x7f24c2c76dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f24d5e14fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f24d5ef59ff in QInotifyFileSystemWatcherEngine::run (this=0xa11870) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f24d5e17fcb in QThreadPrivate::start (arg=0xa11870) at thread/qthread_unix.cpp:298
#11 0x00007f24d0704e9a in start_thread (arg=0x7f24c2c77700) at pthread_create.c:308
#12 0x00007f24d4b034bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f24c0b3b700 (LWP 30474)):
#0  0x00007fff807738de in ?? ()
#1  0x00007f24d00f115d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007f24d5e6ebb4 in do_gettime (frac=0x7f24c0b3ab98, sec=0x7f24c0b3ab90) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f24d5f46b8d in QTimerInfoList::updateCurrentTime (this=0x7f24b0002860) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007f24d5f46ec3 in QTimerInfoList::timerWait (this=0x7f24b0002860, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007f24d5f4597c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f24c0b3ac6c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f24d5f45a25 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f24cfe3f71e in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f24cfe3ff1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f24cfe40124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f24d5f46426 in QEventDispatcherGlib::processEvents (this=0x7f24b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007f24d5f15c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f24d5f15ed7 in QEventLoop::exec (this=0x7f24c0b3add0, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007f24d5e14fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#15 0x00007f24d5ef59ff in QInotifyFileSystemWatcherEngine::run (this=0xd637b0) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007f24d5e17fcb in QThreadPrivate::start (arg=0xd637b0) at thread/qthread_unix.cpp:298
#17 0x00007f24d0704e9a in start_thread (arg=0x7f24c0b3b700) at pthread_create.c:308
#18 0x00007f24d4b034bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f24d7ba4780 (LWP 30466)):
[KCrash Handler]
#6  0x00007f24d21953ff in debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator&, FileFd&, std::string) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#7  0x00007f24d21af51f in debPackagesIndex::Merge(pkgCacheGenerator&, OpProgress*) const () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#8  0x00007f24d214fcb7 in ?? () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#9  0x00007f24d2152b34 in pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#10 0x00007f24d21494da in pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#11 0x00007f24d2149904 in pkgCacheFile::Open(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
#12 0x00007f24d6dc667a in QApt::Cache::open (this=<optimized out>) at /build/buildd/qapt-1.3.1/src/cache.cpp:85
#13 0x00007f24d6dc19c2 in QApt::Backend::reloadCache (this=<optimized out>) at /build/buildd/qapt-1.3.1/src/backend.cpp:193
#14 0x00000000004161d6 in UpdaterWidget::reload (this=0xb7b8b0) at /build/buildd/muon-1.3.1/updater/UpdaterWidget.cpp:127
#15 0x00000000004113c0 in MainWindow::reload (this=0x9c0090) at /build/buildd/muon-1.3.1/updater/MainWindow.cpp:237
#16 0x0000000000411d4e in MainWindow::workerEvent (this=0x9c0090, event=QApt::CacheUpdateFinished) at /build/buildd/muon-1.3.1/updater/MainWindow.cpp:179
#17 0x00007f24d5f2b281 in QMetaObject::activate (sender=0xbd7310, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff80715d60) at kernel/qobject.cpp:3547
#18 0x00007f24d6ddea91 in QApt::Backend::workerEvent (this=<optimized out>, _t1=QApt::CacheUpdateFinished) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/moc_backend.cxx:265
#19 0x00007f24d5f2b281 in QMetaObject::activate (sender=0xbd6fc0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff80715eb0) at kernel/qobject.cpp:3547
#20 0x00007f24d6ddfa51 in OrgKubuntuQaptworkerInterface::workerEvent (this=<optimized out>, _t1=2) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/workerdbus.moc:242
#21 0x00007f24d6de06e6 in OrgKubuntuQaptworkerInterface::qt_static_metacall (_o=0xbd6fc0, _c=<optimized out>, _id=8, _a=0x7fff807163e0) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/workerdbus.moc:108
#22 0x00007f24d6de120b in OrgKubuntuQaptworkerInterface::qt_metacall (this=0xbd6fc0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff807163e0) at /build/buildd/qapt-1.3.1/obj-x86_64-linux-gnu/src/workerdbus.moc:176
#23 0x00007f24d3f9b37b in QDBusConnectionPrivate::deliverCall (this=0xa1ff80, object=0xbd6fc0, msg=..., metaTypes=..., slotIdx=13) at qdbusintegrator.cpp:947
#24 0x00007f24d5f30446 in QObject::event (this=0xbd6fc0, e=<optimized out>) at kernel/qobject.cpp:1195
#25 0x00007f24d5299894 in notify_helper (e=0x22756a0, receiver=0xbd6fc0, this=0x8701c0) at kernel/qapplication.cpp:4559
#26 QApplicationPrivate::notify_helper (this=0x8701c0, receiver=0xbd6fc0, e=0x22756a0) at kernel/qapplication.cpp:4531
#27 0x00007f24d529e713 in QApplication::notify (this=0x7fff80716de0, receiver=0xbd6fc0, e=0x22756a0) at kernel/qapplication.cpp:4420
#28 0x00007f24d6976b46 in KApplication::notify (this=0x7fff80716de0, receiver=0xbd6fc0, event=0x22756a0) at ../../kdeui/kernel/kapplication.cpp:311
#29 0x00007f24d5f16e9c in QCoreApplication::notifyInternal (this=0x7fff80716de0, receiver=0xbd6fc0, event=0x22756a0) at kernel/qcoreapplication.cpp:876
#30 0x00007f24d5f1ac6a in sendEvent (event=0x22756a0, receiver=0xbd6fc0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x845790) at kernel/qcoreapplication.cpp:1500
#32 0x00007f24d5f45f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#33 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#34 0x00007f24cfe3fc9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f24cfe40060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f24cfe40124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f24d5f463bf in QEventDispatcherGlib::processEvents (this=0x847070, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#38 0x00007f24d5341d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007f24d5f15c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#40 0x00007f24d5f15ed7 in QEventLoop::exec (this=0x7fff80716d70, flags=...) at kernel/qeventloop.cpp:204
#41 0x00007f24d5f1af67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#42 0x000000000040f437 in main (argc=1, argv=0x7fff80717058) at /build/buildd/muon-1.3.1/updater/main.cpp:61
Comment 3 Maarten Bezemer 2012-05-16 09:00:42 UTC 
In order to have Muon working again, I checked the sources line in Configure Software Sources again, ie removed the # in the /etc/apt/sources.list.d/ubuntu-wine-ppa-precise.list file.

And now the crash is gone...

In also have some more details when the crash happens: it happens when the progress bar of 'Rebuilding Search Index' (shown in the bottom right corner of the Muon main window) is almost complete.
Comment 4 Jonathan Thomas 2012-05-16 11:22:50 UTC 

*** This bug has been marked as a duplicate of bug 282923 ***