segmentation fault with snap and spotify

[come-maiz]

Description

I'm trying to play a spotify playlist using the tizonia snap in ubuntu 18.04. This results in:
/snap/tizonia/131/bin/tizonia-snap-wrapper.sh: line 22: 2094 Segmentation fault (core dumped) $SNAP/usr/bin/tizonia "$@"

Steps to Reproduce

1. $ tizonia --spotify-playlist "La patchanka"
2. Enter my password.
3. Crash

Expected behavior: [What you expect to happen]
Not crash.

Actual behaviour: [What actually happens]
Crashes :)

Reproduces how often: [What percentage of the time does it reproduce?]
Every time

Versions

Use the information obtained from tizonia --version and tizonia --debug. Also, please include the OS details and what version you are running
(e.g. cat /etc/os-release).

$ tizonia --version
tizonia 0.13.0. Copyright (C) 2018 Juan A. Rubio

$ tizonia --debug
tizonia 0.13.0. Copyright (C) 2018 Juan A. Rubio
This software is part of the Tizonia project <http://tizonia.org>

Debug Info:
	    * [Boost 1_58]
	    * [TagLib 1.9.1]
	    * [MediaInfoLib - v0.7.82]

$ cat /etc/os-release
NAME="Ubuntu"
VERSION="18.04 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

Installation Method Used

Snap

[juanrubio]

Hi!, thanks for reporting this.

Yes, definitely it is a genuine issue. It is only present when Tizonia is installed from the snap package. Will need to investigate when this got broken in the snap.

[juanrubio]

Another user has reported it in the tizonia-snap repo:

• /snap/tizonia/131/bin/tizonia-snap-wrapper.sh: line 22: 9326 Segmentation fault tizonia-snap#2

I will keep both issues open for now until I know more.

[juanrubio]

@ElOpio

As said before, this is a snap-specific issue. This crash occurs when tizonia is trying to access /var/tmp/..., and receives an 'apparmor' denial. See the details at:
https://forum.snapcraft.io/t/tizonia-snap-apparmor-denied-suggestion-adjust-program-to-use-tmpdir-or-tmp/4951

I don't know yet what is the standard solution for this problem, so waiting for an answer to my question on the snapcraft forum.