[Octave-bug-tracker] [bug #52996] calling audiodevinfo() results in a segfault on exit when JACK sound server is running

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?52996>

                 Summary: calling audiodevinfo() results in a segfault on exit
when JACK sound server is running
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Sun 28 Jan 2018 07:26:37 PM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Segfault, Bus Error, etc.
                  Status: None
             Assigned to: None
         Originator Name: Marc
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.2.1
        Operating System: GNU/Linux

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Details:

When the JACK server is running Octave produces a segfault on exit when
"audiodevinfo()" was called before.

Tested with different sound cards (PCI and USB).
It does not crash when JACK is not running.

Best observed with octave-cli where the error message appears in the
terminal:

octave:1> A=audiodevinfo;
ALSA lib pcm_dsnoop.c:618:(snd_pcm_dsnoop_open) unable to open slave
ALSA lib pcm_dmix.c:1052:(snd_pcm_dmix_open) unable to open slave
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_dmix.c:1052:(snd_pcm_dmix_open) unable to open slave
octave:2> exit
panic: Segmentation fault -- stopping myself...
attempting to save variables to 'octave-workspace'...
save to 'octave-workspace' complete
Speicherzugriffsfehler (Speicherabzug geschrieben)





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