fstrim: /var/spool/postfix/etc/sasldb2: not a directory

[Marius Gedminas]

I've started getting weekly cron emails starting on Oct 7, 2018 that say

    /etc/cron.weekly/fstrim:
    fstrim: /var/spool/postfix/etc/sasldb2: not a directory

The previous week's email did not have any complaints from fstrim, and I'm not sure what changed since then. There was a kernel upgrade (to 4.4.0-137.163), maybe that's related?

My /etc/fstab contains the following line

    /etc/sasldb2 /var/spool/postfix/etc/sasldb2 none bind 0 0

because I need postfix's smtpd to access /etc/sasldb2 inside the postfix chroot.

FWIW the root partition (that contains /etc/sasldb2) on this server resides on a pair of SSDs (inside a raid1 LVM volume), but only since Sep 27 when I moved it there. I'm not sure it's relevant since, as I mentioned before, the weekly email on Sep 30 did not have any fstrim complaints, just the usual "new 18.04 LTS update available, consider upgrading".

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: util-linux 2.27.1-6ubuntu3.6
ProcVersionSignature: Ubuntu 4.4.0-138.164-generic 4.4.155
Uname: Linux 4.4.0-138-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
Date: Fri Oct 26 17:56:06 2018
SourcePackage: util-linux
UpgradeStatus: Upgraded to xenial on 2016-11-07 (718 days ago)

[Marius Gedminas (mgedmin)]

Forwarded upstream: https://github.com/karelzak/util-linux/issues/857

[Karel Zak (kzak)]

Fixed in upstream tree. Thanks for your report.