SIGSEGV while editing tags in history table view

[Uwe Klotz]

OS: Fedora 23 x86_64
Version: 2.1.0-pre-alpha
Branch: WriteAudioTags (Qt4 build)
The actual branch shouldn't matter, this could also have happened in 'master', no tag writing code involved. The TrackCache is also not involved while editing tags of a track that has already been cached.

What I've done:
- Edit the comment field of the currently playing (AutoDJ) track ("01-04 simple plan astronaut (naked version).m4a") in the history table view
- Hit enter

I've seen similar X11 event processing crashes in the past, but I don't remember the context anymore. This crash is not reproducible!

Debug [Thread (pooled)]: SoundSourceProvider "Nero FAAD2" created a SoundSource for file QUrl( "file:///run/media/uk/Private/Music/Collection/simple plan/summer paradise - ep/01-04 simple plan astronaut (naked version).m4a" ) of type "m4a"
Debug [Thread (pooled)]: Reading tags from file "/run/media/uk/Private/Music/Collection/simple plan/summer paradise - ep/01-04 simple plan astronaut (naked version).m4a" of type "mp4" : ignoring track metadata , parsing cover art
Debug [Thread (pooled)]: SoundSourceProvider "Nero FAAD2" created a SoundSource for file QUrl( "file:///run/media/uk/Private/Music/Collection/simple plan/summer paradise - ep/01-04 simple plan astronaut (naked version).m4a" ) of type "m4a"
Debug [Thread (pooled)]: Reading tags from file "/run/media/uk/Private/Music/Collection/simple plan/summer paradise - ep/01-04 simple plan astronaut (naked version).m4a" of type "mp4" : ignoring track metadata , parsing cover art
Debug [Main]: WCoverArt::slotCoverFound WCoverArt(0x2e6203d0) "CoverInfo(METADATA,GUESSED,,209,/home/uk/Music/Collection/simple plan/summer paradise - ep/01-04 simple plan astronaut (naked version).m4a)" QSize(300, 300)
Debug [Main]: TrackCache: Resolving track by id 196035
Debug [Main]: TrackCache: Resolving track by canonical location "/run/media/uk/Private/Music/Collection/bankroll mafia/bankroll mafia/01-09 bankroll mafia ft. shad da god, quavo & offset up one.m4a"
Debug [Main]: TrackCache: Cache miss - inserting new track into cache ["/home/uk/Music/Collection/bankroll mafia/bankroll mafia/01-09 bankroll mafia ft. shad da god, quavo & offset up one.m4a" | "/run/media/uk/Private/Music/Collection/bankroll mafia/bankroll mafia/01-09 bankroll mafia ft. shad da god, quavo & offset up one.m4a" | 196035]
Debug [Main]: BeatFactory::loadBeatsFromByteArray could not parse serialized beats.
Debug [Main]: SoundSourceProvider "Nero FAAD2" created a SoundSource for file QUrl( "file:///run/media/uk/Private/Music/Collection/bankroll mafia/bankroll mafia/01-09 bankroll mafia ft. shad da god, quavo & offset up one.m4a" ) of type "m4a"
Debug [Main]: Reading tags from file "/run/media/uk/Private/Music/Collection/bankroll mafia/bankroll mafia/01-09 bankroll mafia ft. shad da god, quavo & offset up one.m4a" of type "mp4" : parsing track metadata , ignoring cover art
Debug [Main]: BaseTrackCache(0x3980430) updateIndexWithQuery took 0 ms

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff4edae5a in QApplication::x11ProcessEvent(_XEvent*) ()
   from /usr/lib64/libQtGui.so.4
(gdb) bt
#0 0x00007ffff4edae5a in QApplication::x11ProcessEvent(_XEvent*) ()
    at /usr/lib64/libQtGui.so.4
#1 0x00007ffff4f04299 in x11EventSourceDispatch(_GSource*, int (*)(void*), void*) () at /usr/lib64/libQtGui.so.4
#2 0x00007fffefa58e3a in g_main_context_dispatch ()
    at /usr/lib64/libglib-2.0.so.0
#3 0x00007fffefa591d0 in g_main_context_iterate.isra ()
    at /usr/lib64/libglib-2.0.so.0
#4 0x00007fffefa5927c in g_main_context_iteration ()
    at /usr/lib64/libglib-2.0.so.0
#5 0x00007ffff4457e5e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6 0x00007ffff4f04436 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtGui.so.4
#7 0x00007ffff4426131 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#8 0x00007ffff44264a5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#9 0x00007ffff442c039 in QCoreApplication::exec() ()
    at /usr/lib64/libQtCore.so.4
#10 0x0000000000489f3d in main(int, char**) (argc=7, argv=<optimized out>)
    at src/main.cpp:116

[Uwe Klotz (uklotzde-deactivatedaccount)]

Didn't happen again for some time now. We have similar crash reports that indicate a potential problem with the X11 graphics driver as one possible cause.

Marking as invalid.

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/8535