Re: [Lmuse-developer] Fwd: mtrackinfo.cpp: missing config.fonts[2]

[WillyFoobar <Wil...@gm...>]

Hi Robert,
Hello to all,


I AGREE to your REPLY:
> I tried this too now and I fear ZynAdd (or MusE) still causes some
> memory corruption.

THIS WAS MY EARLIER statement:
> > after the ZynAddSubFX issue is done,
> > I still am try to get muse2 up and running.
> >
> > I am running into another problem, now.
> >
> > However, I get the next runtime error at muse/widgets/mtrackinfo.cpp
> > It looks like the config.fonts array contains no valid fonts!



when I read your stack memory dump,
.. the problem is not any more inside the shared library:

	/usr/lib/dssi/zynaddsubfx .so

The problem before with thy zynaddsubfx.so 
happened to be much earlier at the file plugin.cpp

This was the calling stack:
> #2  0x017d15a7 in QWidget::setFont(QFont const&) () from /usr/lib/libQtGui.so.4
> #3  0x009323aa in MidiTrackInfo::MidiTrackInfo(QWidget*, Track*) ()

The constructor of the 
	config.fonts[2] 
seems to NEVER have been filled with valid data!
// see the listing below:
> > MidiTrackInfo::MidiTrackInfo(QWidget* parent, Track* sel_track) : QWidget(parent)


//===================================0
AT the muse xterm output it says:

> > fatal error: open /dev/rtc failed: Keine Berechtigung
> > hint: check if 'rtc' kernel module is loaded, or used by something else



Can it be a problem of my local distribution settings?
//-------------------------------------/dev/rtc/ seems to have the wrong permissions  

ZynAddSubFX-2.4.1> ll /dev/rt*
lrwxrwxrwx 1 root root      4 11. Mai 22:16 /dev/rtc -> rtc0
crw------- 1 root root 254, 0 11. Mai 22:16 /dev/rtc0

//----------------------------------------------------------checking rtc by:

$>lsmod|grep rtc
shows no  related module at all


Bye,
	Willy


Am Samstag 28 Mai 2011, 16:21:39 schrieb Robert Jonsson:

> Hi Willy,
> 
> I tried this too now and I fear ZynAdd (or MusE) still causes some
> memory corruption.
> I get the following backtrace now with your ZynAdd fix.
> 
> Core was generated by `muse2'.
> Program terminated with signal 11, Segmentation fault.
> #0  0x019b6c20 in QFont::operator==(QFont const&) const () from
> /usr/lib/libQtGui.so.4
> (gdb) bt
> #0  0x019b6c20 in QFont::operator==(QFont const&) const () from
> /usr/lib/libQtGui.so.4
> #1  0x019b95cc in QFont::resolve(QFont const&) const () from
> /usr/lib/libQtGui.so.4
> #2  0x017d15a7 in QWidget::setFont(QFont const&) () from /usr/lib/libQtGui.so.4
> #3  0x009323aa in MidiTrackInfo::MidiTrackInfo(QWidget*, Track*) ()
> from /usr/local/lib/muse-2.0beta/modules/libmuse_widgets.so
> #4  0x0044f43b in Arranger::genTrackInfo(QWidget*) () from
> /usr/local/lib/muse-2.0beta/modules/libmuse_arranger.so
> #5  0x0044cd8d in Arranger::Arranger(QMainWindow*, char const*) ()
> from /usr/local/lib/muse-2.0beta/modules/libmuse_arranger.so
> #6  0x00d802d7 in MusE::MusE(int, char**) () from
> /usr/local/lib/muse-2.0beta/modules/libmuse_core.so
> #7  0x0804d93a in main ()
> 
> Regards,
> Robert
> 
> 2011/5/28 WillyFoobar <Wil...@gm...>:
> > Hello guys,
> >
> > Ups the last try was blocked, as the mail out-rules size limitations,
> >
> > Yours,
> >        Willy
> >
> > ----------  Weitergeleitete Nachricht  ----------
> >
> > Betreff: mtrackinfo.cpp: missing config.fonts[2]
> > Datum: Samstag 28 Mai 2011, 15:19:52
> > Von: Wil...@li...Foobar <Wil...@gm...>
> > An:
> >
> > Hello guys,
> >
> >
> > after the ZynAddSubFX issue is done,
> > I still am try to get muse2 up and running.
> >
> > I am running into another problem, now.
> >
> > However, I get the next runtime error at muse/widgets/mtrackinfo.cpp
> > It looks like the config.fonts array contains no valid fonts!
> >
> > Yours,
> >        Willy
> >
> > P.S.: might this be related to missing /dev/rtc permissions???
> >
> >
> >
> >
> >
> > //---------------------------------------------------------This is the code
> > //   midiTrackInfo
> > //---------------------------------------------------------
> >
> > MidiTrackInfo::MidiTrackInfo(QWidget* parent, Track* sel_track) : QWidget(parent)
> > {
> >  setupUi(this);
> >  _midiDetect = false;
> >
> >  selected = sel_track;
> >
> >  // Since program covers 3 controls at once, it is in 'midi controller' units rather than 'gui control' units.
> >  //program  = -1;
> >  program  = CTRL_VAL_UNKNOWN;
> >  pan      = -65;
> >  volume   = -1;
> >
> >  setFont(config.fonts[2]);     // <<----Crashing here
> >
> > //..
> > }
> >