Re: [Denemo-devel] Denemo crash on startup

[Richard Shann]

On Wed, 2018-12-05 at 21:33 +0100, Andreas Schneider wrote:
> Hi,
> 
> after updating to the newest version from git, Denemo crashes with a
> segmentation fault on startup (after having said No to the question
> whether to re-use existing commands, shortcuts, etc.), 

That is the bit that was causing the crash - in the absence of recently
opened files it crashes :(
I've fixed it now in git.

Richard


> see the traceback
> below. Do you have an idea what might cause that? My OS is Debian
> Stretch (9.6).
> 
> Andreas
> 
> 
> (gdb) run
> Starting program: /usr/bin/denemo
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/x86_64-linux-
> gnu/libthread_db.so.1".
> Denemo data expected in /usr/share/denemo/
> [New Thread 0x7fffdae40700 (LWP 19606)]
> [New Thread 0x7fffda63f700 (LWP 19607)]
> [New Thread 0x7fffd9e3e700 (LWP 19608)]
> [New Thread 0x7fffd963d700 (LWP 19609)]
> [New Thread 0x7fffd8e3c700 (LWP 19610)]
> [New Thread 0x7fffd863b700 (LWP 19611)]
> [New Thread 0x7fffd7e3a700 (LWP 19612)]
> [New Thread 0x7fffd6d08700 (LWP 19613)]
> [New Thread 0x7fffd6507700 (LWP 19614)]
> Gtk-Message: GtkDialog mapped without a transient parent. This is
> discouraged.
> Denemo - WARNING : No syntax highlighting for LilyPond
> Denemo - MESSAGE : Audio driver is 'portaudio'
> Denemo - MESSAGE : Initializing Fluidsynth
> Denemo - MESSAGE : The default fluidsynth soundfont has been loaded
> Denemo - MESSAGE : Initializing PortAudio backend
> ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM
> cards.pcm.rear
> ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM
> cards.pcm.center_lfe
> ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM
> cards.pcm.side
> ALSA lib pcm_route.c:867:(find_matching_chmap) Found no matching
> channel map
> [New Thread 0x7fffd4c91700 (LWP 19743)]
> Cannot connect to server socket err = No such file or directory
> Cannot connect to server request channel
> jack server is not running or cannot be started
> JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for
> 4294967295, skipping unlock
> JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for
> 4294967295, skipping unlock
> [Thread 0x7fffd4c91700 (LWP 19743) exited]
> Denemo - MESSAGE : Opening output device 'ALSA: default'
> [New Thread 0x7fffc7fff700 (LWP 19744)]
> Denemo - MESSAGE : MIDI driver is 'portmidi'
> Denemo - MESSAGE : Initializing PortMidi backend
> [New Thread 0x7fffc77fe700 (LWP 19745)]
> Denemo - MESSAGE : Opening input device 'ALSA: Midi Through Port-0'
> Denemo - MESSAGE : Opening output device 'ALSA: Midi Through Port-0'
> [New Thread 0x7fffc6ffd700 (LWP 19746)]
> Denemo - MESSAGE : Denemo version 2.2.10
> Denemo - MESSAGE : Loaded keymap
> /home/src/denemo/actions/Default.commands
> switching pagenum 0
> switching pagenum 0
> switching pagenum 0
> 
> Thread 1 "denemo" received signal SIGSEGV, Segmentation fault.
> 0x00005555555e33aa in ?? ()
> (gdb) where
> #0  0x00005555555e33aa in ?? ()
> #1  0x00005555556084ed in ?? ()
> #2  0x00005555555ec39a in ?? ()
> #3  0x00007ffff7a5cadc in ?? ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> #4  0x00007ffff7b0ce36 in ?? ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> #5  0x00007ffff7adeca0 in ?? ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> #6  0x00007ffff7b174f3 in ?? ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> #7  0x00007ffff7b37f08 in ?? ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> #8  0x00007ffff7a675ab in scm_call_4 ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> #9  0x00007ffff7b0cc8c in scm_catch_with_pre_unwind_handler ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> #10 0x00007ffff7b0cf0e in scm_c_catch ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> #11 0x00007ffff7a5c92b in ?? ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> #12 0x00007ffff7a5cbf4 in scm_c_with_continuation_barrier ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> ---Type <return> to continue, or q <return> to quit---
> #13 0x00007ffff7b09bea in ?? ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> #14 0x00007ffff77913c2 in GC_call_with_stack_base ()
>    from /usr/lib/x86_64-linux-gnu/libgc.so.1
> #15 0x00007ffff7b09cd3 in ?? ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> #16 0x00007ffff7b09d13 in scm_with_guile ()
>    from /usr/lib/x86_64-linux-gnu/libguile-2.0.so.22
> #17 0x000055555557c58a in main ()
> (gdb)
> 
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