On one of my VMs, some upstart jobs were failing, and when I checked df, showed that I had run out of disk-space (Use% was 100 on /dev/sda1).

What I did not get is: the jobs which were running with a setuid were failing, but the ones running as root were able to start!, If I removed setuid, even the failed ones could be started!

1 Answer 1


I am not an upstart expert, but I think, that jobs running as root are using disk preserved space (5% of partition space are preserved for root as default).

  • oh! OK, wasn't aware of it
    – Ani
    Aug 25, 2015 at 7:22

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