Back to the unknown syscall when running a Qt app pakcaged with Qt 5.11 from Neon. Having the same issue with VLC built with core18, using Neon repos.
syscall 332 seems to be statx.
= Seccomp =
Time: Sep 12 19:43:59
Log: auid=1000 uid=1000 gid=1000 ses=3 pid=2441 comm=“vlc-qt-check” exe="/snap/vlc/x1/usr/libexec/vlc/vlc-qt-check" sig=0 arch=c000003e 332(UNKNOWN) compat=0 ip=0x7f1f685ee839 code=0x50000
Syscall: UNKNOWN
= Seccomp =
Time: Sep 12 19:43:59
Log: auid=1000 uid=1000 gid=1000 ses=3 pid=2452 comm=“vlc-qt-check” exe="/snap/vlc/x1/usr/libexec/vlc/vlc-qt-check" sig=0 arch=c000003e 332(UNKNOWN) compat=0 ip=0x7f4cb646d839 code=0x50000
Syscall: UNKNOWN
The failure to launch that check prevents VLC from launching a Qt interface (which will likely fail the same way since statx is used internally in Qt).
The snap with that Qt is available under http://thre.sh/stuff/vlc_4.0.0-dev-4642-g53946e4ed9_amd64.snap, sha512 is 5126d185fe2e9188263cf57c13319ac7dd82dd99b4f63b2b8ad064d499d1f23d2756cfa3a1339c8b0f565a029c424460c02324cb1fdb9eff8e9084cea756151f stuff/vlc_4.0.0-dev-4642-g53946e4ed9_amd64.snap