refresh fails

[Ondrej Kubik]

snap version:
snap 2.42~pre2+git1035.g0ebcc4a
snapd 2.42~pre2+git1035.g0ebcc4a
series 16

Refresh fails. Tested with snap from store and with snap local snap and --dangerous

Error reported:
snap refresh <my-snap>
error: cannot perform the following tasks:
- Setup snap "<my-snap>" (6) security profiles (cannot setup mount for snap "<my-snap>": cannot update mount namespace of snap "<my-snap>": cannot update preserved namespace of snap "<my-snap>": cannot update snap namespace: no such file or directory)
- Setup snap "<my-snap>" (6) security profiles (cannot update mount namespace of snap "<my-snap>": cannot update preserved namespace of snap "<my-snap>": cannot update snap namespace: no such file or directory)

Snap has relatively benevolent layouts, that's only suspicious thing:
layout:
  /etc:
    bind: $SNAP/etc
  /usr/share/pico:
    bind: $SNAP/usr/share/pico
  /usr/share/nip:
    bind: $SNAP/usr/share/nip
  /usr/vt:
    bind: $SNAP/usr/vt

[Ondrej Kubik (ondrak)]

this is also reported as 55a21b78-e13e-11e9-b59f-fa163e102db1 OOPSID
If more data can be extracted from OOPSID

[Zygmunt Krynicki (zyga)]

I suspect this is a duplicate of https://bugs.launchpad.net/snapd/+bug/1844496 but I will only mark it as such after performing some more analysis.