On 08/01/2017 11:17 AM, ToddAndMargo wrote:
> Hi All,
> 
> Twice now in a month, on booting up my SL 7.3 computer,
> after entering my LUKS passphrase, it freezes
> at "Disabling IRQ 16".  <ctrl>alt><f2> doesn't
> do a thing. Everything is frozen.  The one fingered
> reset works.
> 
> Am I starting to lose my motherboard or is this a "feature"
> of 7.3?
> 
> 
> Many thanks,
> -T
> 

I tried adding "irqpoll" to my kernel run line (grub.cfg).

After rebooting, I noticed that right after "Disabling IRQ16", I got an 
"irq18 nobody cares (try booting with irqpoll option)".  Then it ran for 
a bit and OH NO "Kernel panic: CPU 4 PID 0 comm: swapper/4 tainted" and 
my keyboard's light started flashing.

The kernel panic reproduced twice before I removed "irqpoll" and I was 
able to boot again.

Did this tell us something?