Re: disabling secondary CPU hangs / system fails to suspend with kernel 4.19+

[Peter Zijlstra]

On Fri, Mar 15, 2019 at 09:21:02PM +0100, Thomas Müller wrote:
> I've just re-tested with runlevel 3.
> Not a real VGA console, but at least no Wayland or Gnome to interfere...
> 
> `echo 0 > /sys/...` just blocks and no message whatsoever is visible in dmesg.
> 
> I've executed `echo 0 > ...` in the background to keep my console functional and I can e.g. echo
> something to /dev/kmsg and it shows up, so reading/updating the log buffer appears to be working
> just fine.

Damn.. Thanks for trying. I'll see if I can come up with something, but
I'm out of idea for now :/