You have been subscribed to a public bug:
NTPD drift file is not given permission in Apparmor configuration in
"/etc/apparmor.d/usr.sbin.ntpd".
Proper permission should be given to the drift file.
EXPECTED RESULT
----
No NTPD drift error print in syslog and system doesn't hang.
ACTUAL RESULT
----
At least on my development PC during heavy compilation whole system freezes and
I need to do a forced shutdown.
PRINT IN SYSLOG
----
kernel: [ 3613.938660] type=1400 audit(1456152589.274:52): apparmor="DENIED"
operation="mknod" profile="/usr/sbin/ntpd" name="/var/lib/ntp.drift.TEMP"
pid=1832 comm="ntpd" requested_mask="c" denied_mask="c" fsuid=104 ouid=104 Feb
22 16:49:49 fid655548 ntpd[1832]: frequency file /var/lib/ntp.drift.TEMP:
Permission denied
FIX
----
...
/etc/ntp.drift rwl,
/etc/ntp.drift.TEMP rwl,
/etc/ntp/drift* rwl,
/var/lib/ntp/*drift rw,
/var/lib/ntp/*drift.TEMP rw,
/var/lib/ntp.drift.TEMP rw, <-- THIS WAS MISSING
...
~$ lsb_release -rd
Description: Ubuntu 14.04.4 LTS
Release: 14.04
$ apt-cache policy ntp
ntp:
Installed: 1:4.2.6.p5+dfsg-3ubuntu2.14.04.8
Candidate: 1:4.2.6.p5+dfsg-3ubuntu2.14.04.8
Version table:
*** 1:4.2.6.p5+dfsg-3ubuntu2.14.04.8 0
500 http://mirrors.bit.bittium.com/ubuntu/ trusty-updates/main amd64
Packages
100 /var/lib/dpkg/status
1:4.2.6.p5+dfsg-3ubuntu2.14.04.5 0
500 http://mirrors.bit.bittium.com/ubuntu//ubuntu/ trusty-security/main
amd64 Packages
1:4.2.6.p5+dfsg-3ubuntu2 0
500 http://mirrors.bit.bittium.com/ubuntu/ trusty/main amd64 Packages
** Affects: ntp (Ubuntu)
Importance: Undecided
Status: New
--
System hangs, because NTPD drift file is blocked by AppArmor.
https://bugs.launchpad.net/bugs/1548685
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