Public bug reported:
I didn't touch my Nagios config, just update my system from 15.04 to
15.10. Suddenly the default localhost/Disk Space check fails with the
following output:
DISK CRITICAL - /sys/kernel/debug/tracing is not accessible: Permission
denied
This can be reproduced when manually running the underlying command as
user "nagios":
$ /usr/lib/nagios/plugins/check_disk -w '20%' -c '10%' -e
DISK CRITICAL - /sys/kernel/debug/tracing is not accessible: Permission denied
When I run it as root it works:
# /usr/lib/nagios/plugins/check_disk -w '20%' -c '10%' -e
DISK OK| /dev=0MB;1186;1334;0;1483 /run=8MB;239;269;0;299
/=17157MB;57386;64559;0;71733 /dev/shm=0MB;1199;1349;0;1499
/run/lock=0MB;4;4;0;5 /sys/fs/cgroup=0MB;1199;1349;0;1499
/boot=48MB;181;204;0;227 /run/user/0=0MB;239;269;0;299
Seems "nagios" user can't access the dir it tries to access:
# ls -la /sys/kernel/debug/tracing
drwx------ 7 root root 0 Nov 15 19:40 .
# lsb_release -rd
Description: Ubuntu 15.10
Release: 15.10
# apt-cache policy nagios-plugins-basic
nagios-plugins-basic:
Installed: 1.5-3ubuntu1
Candidate: 1.5-3ubuntu1
Version table:
*** 1.5-3ubuntu1 0
500 http://de.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
100 /var/lib/dpkg/status
** Affects: nagios-plugins (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1516451
Title:
check_disk plugin broken after upgrade to 15.10
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