Comment # 8 on bug 70388 from Ilia Mirkin

(In reply to comment #7)
> (In reply to comment #6)
> > Having a kernel log that includes the various hangs would be super.
> 
> Where it's located or/and how to enable it?

Depending on circumstances, you might find it in /var/log/messages, or if you
can ssh in while the machine is "hung", just run dmesg, or if you can't, set up
netconsole.