@jjohansen @georgiag Thanks for the replies and hints. I didn't have apparmor profile and that fixes the problem. (I have created feature request for electron-builder https://github.com/electron- userland/electron-builder/issues/8635)
Without apparmor profile, an Electron.js app complains: The SUID sandbox helper binary was found, but is not configured correctly. Rather than run without sandboxing I'm aborting now. You need to make sure that /opt/Custom App/chrome-sandbox is owned by root and has mode 4755. So I set SUID as suggested: sudo chmod 4755 "/opt/Custom App/chrome- sandbox" And now, if the path is without space (e.g. /opt/CustomApp), then the Electron app works. When it has a space, it fails with "LaunchProcess: failed to execvp" I have mentioned above. syslog contains logs (stripped prefixes): kernel: audit: type=1400 audit(1729968745.234:136): apparmor="AUDIT" operation="userns_create" class="namespace" info="Userns create - transitioning profile" profile="unconfined" pid=2196 comm="custom-app" requested="userns_create" target="unprivileged_userns" kernel: audit: type=1400 audit(1729968745.236:137): apparmor="DENIED" operation="capable" class="cap" profile="unprivileged_userns" pid=2198 comm="custom-app" capability=21 capname="sys_admin" kernel: traps: custom-app[2196] trap int3 ip:57e938a5c46c sp:7fff1815e5a0 error:0 in custom-app[57e934ad0000+8972000] So, when I do: mv "/opt/Custom App" "/opt/CustomApp" It starts working. (And I do not have any apparmor profile for "/opt/CustomApp"). In syslog, I have just the first message: apparmor="AUDIT" It's possible error message is from Electron.js code. ** Bug watch added: github.com/electron-userland/electron-builder/issues #8635 https://github.com/electron-userland/electron-builder/issues/8635 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to devhelp in Ubuntu. https://bugs.launchpad.net/bugs/2046844 Title: AppArmor user namespace creation restrictions cause many applications to crash with SIGTRAP To manage notifications about this bug go to: https://bugs.launchpad.net/apparmor/+bug/2046844/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
