# Revision history [back]

Hey man,

I've been having the same issue on my ThinkPad X1 lately and am also running Fedora 27.

Authentication error was reproduced consistently by locking my screen and majority of the time I had to restart to resolve.

Kernel Version: 4.14.16-300.fc27.x86_64

Error: Unexpected system error with kernel-core

Detail: Tainted modules: vboxpci, vboxnetadp, vboxnetflt, vboxdrv

I noticed this issue occurring since a recent install of VirtualBox, and as such I've removed it and any related packages. Following that, I've not had any authentication errors.

Not sure if you're using this too, but may be worth a shot. Couldn't really find any other issues aside from the one highlighted above.

Cheers,

Josh

Hey man,

I've been having the same issue on my ThinkPad X1 lately and am also running Fedora 27.

Authentication error was reproduced consistently by locking my screen and majority of the time I had to restart to resolve.

Kernel Version: 4.14.16-300.fc27.x86_64

Error: Unexpected system error with kernel-core

Detail: Tainted modules: vboxpci, vboxnetadp, vboxnetflt, vboxdrv

I noticed this issue occurring since a recent install of VirtualBox, and as such I've removed it and any related packages. Following that, I've not had any authentication errors.

Not sure if you're using this too, but may be worth a shot. Couldn't really find any other issues aside from the one highlighted above.

Cheers,

Josh

EDIT: 19th February, 2018

Thought I'd drop back in and say I found what the issue was for me with absolute certainty:

Temporary solution:

sudo -i
echo 1048576 > /proc/sys/fs/inotify/max_user_watches
exit


Permanent solution:

Edit /etc/sysctl.conf

fs.inotify.max_user_watches=1048576


Whilst the above link doesn't relate to the same issue we're all experiencing, the solution did actually fix the problem for me. In my situation I do have Crashplan installed, but you guys may not.