Tainted kernel: lspci, udevadm crashed on 4.4 kernel

[Yung Shen]

while verifying bug #1599109 , I'm not able to use certain commands: lspci, udevadm

steps to reproduce:
1. fresh isntall
2. install testing kernel

A further testing on the tainted kernel issues:

reinstall with xenial(14.04.0): after suspend and resume similar tainted message will show up while using udevadm, lspci, hence both program hung/crashed like in tested kernel.

reinstall with trusty(14.04.3 with 3.19 kernel) there is no tainted kernel however. But after upgrade to linux-generic-lts-xenial(4.4 kernel) system became very unstable on this system, failed at suspend.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1603862

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Timo Aaltonen (tjaalton)]

I think the issues are caused by mixing linux-signed with -image with the same ABI version, so try uninstalling linux-signed-* and see if you still get these