Red Hat Bugzilla – Bug 1310658
Can't login any more to F22 with kernel 4.3.4-200
Last modified: 2016-05-23 07:19:11 EDT
Description of problem:
Since I installed the last update of Fedora 22 on a Dell R620 or R610 server, it is not possible to login to the server, neither on the console nor with SSH.
SElinux is disabled on both servers
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot Fedora 22 with kernel version 4.3.4 on a Dell R610 or R610 server without any window manager
2. Try to login on the console
3. Try to login with SSH
No login banner appears on the console : it just displays the "f" logo on a black screen. Connecting to the server with SSH blocks forever.
The problem does not show up when booting with previous the kernel (4.2.8-200).
Getting a login banner on the console
Getting a shell prompt when connecting to the server using SSH.
What I could observe :
- most (all ?) services are started on the server but there is no way to log on to it
- the command "ssh root@server bash" gives a shell without a prompt nor job control but helps to investigate further
- the command "ps ax | grep systemd" displays the following (note the D flag) :
root 1 0.3 0.0 44156 5896 ? Ds 13:15 0:02 /usr/lib/systemd/systemd --switched-root --system --deserialize 21
- systemctl seems to be broken. Trying to restart any service leads to this :
systemctl restart httpd
Failed to restart httpd.service: Connection timed out
- there's no way to reboot :
Failed to start reboot.target: Connection timed out
The problem disappeared on both servers after the kernel was upgraded to 4.4.9.