Thank you for using Ubuntu and reporting a bug.
/var/lib/ntp.drift is not an Ubuntu default for the drift file. Eg, on a
14.04 and 16.04 system:
$ grep drift /etc/ntp.conf
driftfile /var/lib/ntp/ntp.drift
Since this is a site-specific setting, you have the choice of either
adjusting /etc/ntp.conf or the apparmor profile. As such, marking as
"Won't Fix".
Please feel free to report any other bugs in the future.
** Tags added: apparmor
** Summary changed:
- System hangs, because NTPD drift file is blocked by AppArmor.
+ System hangs, because NTPD drift file (/var/lib/ntp.drift*) is blocked by
AppArmor.
** Changed in: ntp (Ubuntu)
Status: New => Won't Fix
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Touch seeded packages, which is subscribed to ntp in Ubuntu.
https://bugs.launchpad.net/bugs/1548685
Title:
System hangs, because NTPD drift file (/var/lib/ntp.drift*) is blocked
by AppArmor.
Status in ntp package in Ubuntu:
Won't Fix
Bug description:
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
100 /var/lib/dpkg/status
1:4.2.6.p5+dfsg-3ubuntu2 0
500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
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