[Bug 790538] Re: cron gives "Module is unknown" in syslog, stops working

[Martin]

Again a bug that shouldn't happen. I had very bad bugs with apparmor and
kvm and now this. I'm very sad about the quality of ubuntu and I'm now
thinking to switch back to Debian (60 machines).

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https://bugs.launchpad.net/bugs/790538

Title:
  cron gives "Module is unknown" in syslog, stops working

Status in “pam” package in Ubuntu:
  Confirmed

Bug description:
  Upgrading libpam-modules from 1.1.1-4ubuntu1 to 1.1.1-4ubuntu2.2, cron stopped working, just gives a log message "Module is unknown". This happened during unattended-upgrades this night, so there might be a lot of people who didn't realize that yet.
  Downgrading to 1.1.1-4ubuntu1 fixes this.
  Ubuntu 10.10 amd64, almost vanilla, fresh, minimum install + java (ppa) + postgresql9 (ppa).