Building version coredumped when it start

[dcpmaker]

I was trying to build the latest version of dom (version 2.12.4 001a7047cb). And I found that dcpomatic2 coredumped when starting, while the other bin (dcpomatic2_cli, dcpomatic2_server, etc.) worked OK.

Here is what the console show:
user@server:~$ /usr/local/bin/dcpomatic2
02:57:48 PM: Debug: Failed to connect to session manager: SESSION_MANAGER environment variable not defined
Segmentation fault (core dumped)

My dependency list is as following:
--locked_sstream 0.0.5devel
--libcxml 0.15.5
--libopenjp2 2.2.0
--libasdcp-cth 0.1.3
--libdcp 1.5.2
--libsub 1.3.1
--wxWidgets 3.0.2
--ffmpeg-cdist up-to-date with 'origin/carl-dcpomatic'

And what's more, I have previously installed the deb package of dom(version 2.12.4 as the same) and it worked well! So I'm very confused. Do you have any idea to help? Thanks so much!

[carl]

I think that's something do with the XWindows / Wayland session manager. Are you running it from a terminal in a graphical session? What distribution are you using?

[dcpmaker]

Yes, I'm using it from a terminal in a graphical session, Ubuntu 16.04.1 LTS.
And other graphic bin of the building DOM works well, like dcpomatic2_batch and dcpomatic2_kdm.

[carl]

That's very odd. Maybe you could build it again with debugging enabled

./waf configure --enable-debug
./waf clean build

and then run it with gdb?

gdb dcpomatic2
run

[dcpmaker]

OK, I'm trying to work on it and I'll tell you later.

[dcpmaker]

Here is the result:

GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from dcpomatic2...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/local/bin/dcpomatic2
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
05:09:22 PM: Debug: Failed to connect to session manager: SESSION_MANAGER environment variable not defined
[New Thread 0x7fffd9c79700 (LWP 4179)]

Thread 1 "dcpomatic2" received signal SIGSEGV, Segmentation fault.
0x00007ffff40757c5 in RtApiPulse::probeDeviceOpen(unsigned int, RtApi::StreamMode, unsigned int, unsigned int, unsigned int, unsigned long, unsigned int*, RtAudio::StreamOptions*) ()
from /usr/lib/x86_64-linux-gnu/librtaudio.so.4v5
(gdb)

[dcpmaker]

And I found that dcpomatic2_play coredumped as the same. It seems something wrong with the audio stuff?

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
05:18:58 PM: Debug: Failed to connect to session manager: SESSION_MANAGER environment variable not defined
[New Thread 0x7fffd9c79700 (LWP 4289)]

Thread 1 "dcpomatic2_play" received signal SIGSEGV, Segmentation fault.
0x00007ffff40757c5 in RtApiPulse::probeDeviceOpen(unsigned int, RtApi::StreamMode, unsigned int, unsigned int, unsigned int, unsigned long, unsigned int*, RtAudio::StreamOptions*) ()
from /usr/lib/x86_64-linux-gnu/librtaudio.so.4v5

[carl]

Ah yes I think there is a bug in the Ubuntu version of rtaudio.

Try building and installing this version:

git://git.carlh.net/git/rtaudio-cdist.git

with

./configure --with-pulse --with-alsa
make
sudo make install

[dcpmaker]

Yes! Both dcpomatic2 and dcpomatic2_play work perfectly!
Thank you so much!