powerpc64 head -r344018 stuck sleeping problems: th->th_scale * tc_delta(th) overflows unsigned 64 bits sometimes [patched failed]

[Konstantin Belousov]

On Sat, Mar 02, 2019 at 02:49:59PM +0000, Poul-Henning Kamp wrote:
> --------
> In message <20190302142814.GF68879 at kib.kiev.ua>, Konstantin Belousov writes:
> >On Sat, Mar 02, 2019 at 02:17:10PM +0000, Poul-Henning Kamp wrote:
> 
> >More the timehands, more the propagation can be delayed by the hardware.
> 
> One of the two of us don't understand how timecounters work.

Perhaps look at the code ?  Pre-2015 (or so) timecounters did not worked
on non-TSO machines.