[LMMS-devel] Bug report

[Stephane T. <st...@ne...>]

Hi, hope the following out will help :

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1518187600 (LWP 8036)]
0xa7d0ba2e in QGList::append () from /usr/lib/libqt-mt.so.3
(gdb) bt
#0  0xa7d0ba2e in QGList::append () from /usr/lib/libqt-mt.so.3
#1  0xa7a168e0 in QPtrList<QConnection>::append ()
from /usr/lib/libqt-mt.so.3 #2  0xa7a139af in QObject::connectInternal
() from /usr/lib/libqt-mt.so.3 #3  0xa7a140dc in QObject::connect ()
from /usr/lib/libqt-mt.so.3 #4  0xa7a31a9a in QSignal::connect ()
from /usr/lib/libqt-mt.so.3 #5  0xa7a39310 in QSingleShotTimer::start
() from /usr/lib/libqt-mt.so.3 #6  0xa7a39405 in QTimer::singleShot ()
from /usr/lib/libqt-mt.so.3 #7  0x080b20ee in fadeButton::nextState
(this=0x8a5ace8) at fade_button.cpp:144 #8  0x080b2169 in
fadeButton::activate (this=0x8a5ace8) at fade_button.cpp:76 #9
0x0813b4dc in instrumentTrack::processOutEvent (this=0x8bb5278,
_me=@0xa5824060, _time=@0xa5824070) at instrument_track.cpp:743 #10
0x08141586 in notePlayHandle (this=0xa4a04c70, _it=0x8bb5278,
_frames_ahead=253, _frames=11954, _n=@0x8a8b308, _arp_note=false) at
note_play_handle.cpp:96 #11 0x08142b14 in instrumentTrack::play
(this=0x8bb5278, _start=@0xa5824208, _frames=Variable "_frames" is not
available. ) at instrument_track.cpp:1086
#12 0x08101bda in bbEditor::play (this=Variable "this" is not available.
) at bb_editor.cpp:245
#13 0x0810173c in bbTrack::play (this=0x84ffb88, _start=@0x8297660,
    _frames=259, _frame_base=253, _tco_num=-1) at bb_track.cpp:442
#14 0x0810205b in songEditor::processNextBuffer (this=0x8297560)
    at song_editor.cpp:1084
#15 0x0813ec4e in mixer::renderNextBuffer (this=0x82913a0) at
mixer.cpp:337 #16 0x0813f1e1 in audioDevice::getNextBuffer
(this=0x8399400, _ab=0x8445170) ---Type <return> to continue, or q
<return> to quit--- at audio_device.cpp:100
#17 0x0813f859 in audioALSA::run (this=0x8399400) at audio_alsa.cpp:240
#18 0xa79a2194 in QThreadInstance::start () from /usr/lib/libqt-mt.so.3
#19 0xa6ea5ced in start_thread () from /lib/tls/libpthread.so.0
#20 0xa70f4dee in clone () from /lib/tls/libc.so.6

This not happen on any particulary action, it happens randomly.

Another bug, not related to the above one imo :

I still have the problem that sometime, when saving the song, one channel, left or right, is """mutted""". Sometime it raises a segfault but sometime not. But anytime this happens I have to restart lmms to make the two channels work again. Maybe it's a bug in my soundcard, it's an old "soundblaster like" soundcard... I always run lmms within gdb it avoids me a lot of "system disasters", using the ALSA driver.

Please let me know if those bugs happend for you too.

Stef