Thank you for taking the time to report this bug and helping to make Ubuntu
better.
Unfortunately, we cannot work on this bug because your description didn't
include enough information.
Which Ubuntu release and ntp version you using?
1. lsb_release -dcr
2. apt-cache policy ntp
3. Any steps and config needed to recreate.
** Changed in: ntp (Ubuntu)
Importance: Undecided => Medium
** Changed in: ntp (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1564832
Title:
Apparmor profile for NTPd needs to allow read/write access to
/dev/ppsX
Status in ntp package in Ubuntu:
Incomplete
Bug description:
Am trying to get NTP to work with the kernel PPS subsystem, for high-
accuracy GPS-based clocks. On startup of NTPd I see this:
Apr 1 11:18:58 doorway kernel: [ 300.387443] audit: type=1400
audit(1459505938.042:9): apparmor="DENIED" operation="open"
profile="/usr/sbin/ntpd" name="/dev/pps0" pid=1668 comm="ntpd"
requested_mask="wr" denied_mask="wr" fsuid=0 ouid=0
Adding this to the usr.sbin.ntpd apparmor profile eliminated the
error:
/dev/pps[0-9]* rw,
I'm not sure why ntpd needs *write* access to ppsN though, perhaps that can
be improved.
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