"i8042.c: No controller found" -> no keyboard when I type in BIOS

[Tomasz Chmielewski <mangoo@wpkg.org>]

Sometimes, when I type any keys in BIOS, my Linux guests boot without 
keyboard - I'm not able to type in VNC console, guest's dmesg says:

i8042.c: No controller found.


Rebooting the guest doesn't fix the problem; only stopping/starting the 
guest helps (i.e. new kvm process is started).


Which is a bit strange - usually, the keyboard is there when I boot:

serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
input: AT Translated Set 2 keyboard as 
/devices/platform/i8042/serio0/input/input0


The keyboard is not present after I reboot the guest and usually type 
before Linux is started. It does not happen always.

Observed with kvm-83, kvm-84, kvm-85 on multiple KVM hosts (different 
hardware).

Anyone else seeing this? If you're not sure, do something like:

grep i8042 /var/log/kern*

(or grep "i8042.c: No controller found" /var/log/kern*)


-- 
Tomasz Chmielewski
http://wpkg.org