Ubuntu
gpsd package

AppArmor policy blocks the usage of PPS devices

Bug #1877430 reported by Avamander
This bug report is a duplicate of:  Bug #1872178: GPSD unable to use Kernel PPS. Edit Remove
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This bug affects 1 person
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Gpsd
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gpsd (Ubuntu)
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Bug Description

Using Ubuntu 20.04 with latest gpsd (and everything else)

When one adds a pps device to be used by gpsd then gpsd is denied permission to modify that pps device, that breaks the pps functionality.

It is solved by adding capability sys_time to the AppArmor profile.

Revision history for this message
Avamander (avamander) wrote :

Upstream bug: https://gitlab.com/gpsd/gpsd/-/issues/73

Describes how I found a fix for this specific issue.

Revision history for this message
Christian Ehrhardt  (paelzer) wrote :

Hi,
this is already known and in progress to be fixed in
https://bugs.launchpad.net/ubuntu/+source/gpsd/+bug/1872175
https://bugs.launchpad.net/ubuntu/+source/gpsd/+bug/1872178

If you don't want to wait until that is released to Ubuntu 20.04, there is an apparmor change that you can manually apply until then in:
=> https://bugs.launchpad.net/ubuntu/+source/gpsd/+bug/1872175/comments/21

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