segfault in InstrumentTrack::processOutEvent

[andrewrk]

To reproduce, try to load Skiessi-RandomProject14325 from OldStuff

Program received signal SIGSEGV, Segmentation fault.
0x00000000004831d1 in InstrumentTrack::processOutEvent (this=0x7c15bb0, event=..., 
    time=...) at /home/andy/dev/lmms/src/tracks/InstrumentTrack.cpp:391
391             m_instrument->handleMidiEvent( transposedEvent, time );
(gdb) bt
#0  0x00000000004831d1 in InstrumentTrack::processOutEvent (this=0x7c15bb0, 
    event=..., time=...) at /home/andy/dev/lmms/src/tracks/InstrumentTrack.cpp:391
#1  0x0000000000485a85 in InstrumentTrack::updatePitch (this=0x7c15bb0)
    at /home/andy/dev/lmms/src/tracks/InstrumentTrack.cpp:532
#2  0x00007ffff6973a58 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00000000004a0b00 in Model::dataChanged (this=<optimized out>)
    at /home/andy/dev/lmms/build/include/moc_Model.cxx:103
#4  0x00000000004a6ab8 in AutomatableModel::setValue (this=this@entry=0x7c16b70, 
    value=value@entry=100) at /home/andy/dev/lmms/src/core/AutomatableModel.cpp:201
#5  0x00000000004a6ba5 in AutomatableModel::setInitValue (
    this=this@entry=0x7c16b70, value=100)
    at /home/andy/dev/lmms/src/core/AutomatableModel.cpp:480
#6  0x00000000004a7079 in AutomatableModel::loadSettings (
    this=this@entry=0x7c16b70, element=..., name=...)
    at /home/andy/dev/lmms/src/core/AutomatableModel.cpp:169
#7  0x00000000004844eb in InstrumentTrack::loadTrackSpecificSettings (
    this=this@entry=0x7c15bb0, _this=...)
    at /home/andy/dev/lmms/src/tracks/InstrumentTrack.cpp:762
#8  0x000000000049af8c in track::loadSettings (this=0x7c15bb0, _this=...)
    at /home/andy/dev/lmms/src/core/track.cpp:1759
---Type <return> to continue, or q <return> to quit---
#9  0x00000000004ed0f2 in SerializingObject::restoreState (this=0x7c15bd0, 
    _this=...) at /home/andy/dev/lmms/src/core/SerializingObject.cpp:68
#10 0x00000000004d8afe in JournallingObject::restoreState (this=0x7c15bd0, 
    _this=...) at /home/andy/dev/lmms/src/core/JournallingObject.cpp:106
#11 0x0000000000499aa5 in track::create (_this=..., _tc=_tc@entry=0xaa9740)
    at /home/andy/dev/lmms/src/core/track.cpp:1631
#12 0x00000000004a2839 in TrackContainer::loadSettings (this=0xaa9740, _this=...)
    at /home/andy/dev/lmms/src/core/TrackContainer.cpp:116
#13 0x00000000004ed0f2 in SerializingObject::restoreState (this=0xaa9760, _this=...)
    at /home/andy/dev/lmms/src/core/SerializingObject.cpp:68
#14 0x00000000004d8afe in JournallingObject::restoreState (
    this=this@entry=0xaa9760, _this=...)
    at /home/andy/dev/lmms/src/core/JournallingObject.cpp:106
#15 0x00000000004d4d9b in song::loadProject (this=0xaa9740, _file_name=...)
    at /home/andy/dev/lmms/src/core/song.cpp:1148
#16 0x000000000053a001 in MainWindow::openRecentlyOpenedProject (this=0xbfd560, 
    _action=<optimized out>) at /home/andy/dev/lmms/src/gui/MainWindow.cpp:730
#17 0x00007ffff6973a58 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#18 0x00007ffff74fd582 in QMenu::triggered(QAction*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
---Type <return> to continue, or q <return> to quit---
#19 0x00007ffff74fe8d0 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#20 0x00007ffff6973a58 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#21 0x00007ffff70cea32 in QAction::triggered(bool) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#22 0x00007ffff70d0403 in QAction::activate(QAction::ActionEvent) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#23 0x00007ffff6977dce in QObject::event(QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#24 0x00007ffff70d04c2 in QAction::event(QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#25 0x00007ffff70d4dfc in QApplicationPrivate::notify_helper(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#26 0x00007ffff70db470 in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#27 0x00007ffff695f8bd in QCoreApplication::notifyInternal(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#28 0x00007ffff6962e1f in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#29 0x00007ffff698d073 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#30 0x00007ffff39cf3b6 in g_main_context_dispatch ()
---Type <return> to continue, or q <return> to quit---
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007ffff39cf708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007ffff39cf7ac in g_main_context_iteration ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007ffff698ca55 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#34 0x00007ffff71769d6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#35 0x00007ffff695e5ef in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#36 0x00007ffff695e8e5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#37 0x00007ffff6963e5b in QCoreApplication::exec() ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#38 0x0000000000479b93 in main (argc=1, argv=0x7fffffffe578)
    at /home/andy/dev/lmms/src/core/main.cpp:488

[diizy]

I also got a segfault when attempting to open a project.

I have a core dump, but I don't think I can attach it here... it's over 200MB in size.

Here's my gdb backtrace though

#0  0x080c057e in InstrumentTrack::processOutEvent (this=0xaefad38, event=..., time=...)
    at /home/vesa/tmp/lmms/src/tracks/InstrumentTrack.cpp:391
#1  0x080c49c3 in InstrumentTrack::updatePitch (this=0xaefad38)
    at /home/vesa/tmp/lmms/src/tracks/InstrumentTrack.cpp:532
#2  0x080c4a50 in InstrumentTrack::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=0xbf8a31c0, 
    _c=<optimized out>) at /home/vesa/tmp/lmms/build/include/moc_InstrumentTrack.cxx:67
#3  0xb6b0dbb1 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) ()
   from /usr/lib/i386-linux-gnu/libQtCore.so.4
#4  0x081d2335 in Model::dataChanged (this=0xaefb71c) at /home/vesa/tmp/lmms/build/include/moc_Model.cxx:103
#5  0x081a4dfa in AutomatableModel::setControllerConnection (this=0xaefb71c, c=0xafce418)
    at /home/vesa/tmp/lmms/src/core/AutomatableModel.cpp:433
#6  0x081a64e7 in AutomatableModel::loadSettings (this=0xaefb71c, element=..., name=...)
    at /home/vesa/tmp/lmms/src/core/AutomatableModel.cpp:161
#7  0x080c29d2 in InstrumentTrack::loadTrackSpecificSettings (this=0xaefad38, _this=...)
    at /home/vesa/tmp/lmms/src/tracks/InstrumentTrack.cpp:762
#8  0x081a05a4 in track::loadSettings (this=0xaefad38, _this=...) at /home/vesa/tmp/lmms/src/core/track.cpp:1759
#9  0x081db099 in SerializingObject::restoreState (this=0xaefad48, _this=...)
    at /home/vesa/tmp/lmms/src/core/SerializingObject.cpp:68
#10 0x081d3a8a in JournallingObject::restoreState (this=0xaefad48, _this=...)
    at /home/vesa/tmp/lmms/src/core/JournallingObject.cpp:106
#11 0x0819dfee in track::create (_this=..., _tc=0x96d3fd0) at /home/vesa/tmp/lmms/src/core/track.cpp:1631
#12 0x081d9344 in TrackContainer::loadSettings (this=0x96d3fd0, _this=...)
    at /home/vesa/tmp/lmms/src/core/TrackContainer.cpp:116
#13 0x081db099 in SerializingObject::restoreState (this=0x96d3fe0, _this=...)
    at /home/vesa/tmp/lmms/src/core/SerializingObject.cpp:68
#14 0x081d3a8a in JournallingObject::restoreState (this=0x96d3fe0, _this=...)
    at /home/vesa/tmp/lmms/src/core/JournallingObject.cpp:106
#15 0x081cd974 in song::loadProject (this=0x96d3fd0, _file_name=...) at /home/vesa/tmp/lmms/src/core/song.cpp:1192
#16 0x081212a9 in MainWindow::openRecentlyOpenedProject (this=0x97942c0, _action=0x98e2b68)