Re: [PATCH] Revert "exec: make de_thread() freezable (was: Re: Linux 4.20-rc4)

[Michal Hocko]

On Tue 04-12-18 10:02:28, Ingo Molnar wrote:
> 
> * Michal Hocko <mhocko@xxxxxxxxxx> wrote:
> 
> > > Do we actually have reports of this happening for people outside
> > > Android?
> > 
> > Not that I am aware of.
> 
> I'd say outside of Android 99% of the use of hibernation is the fail-safe 
> that distributions offer on laptops with very low battery levels: the 
> emergency hibernation when there's almost no power left anymore.
> 
> Do these hibernation failure messages typically make it to persistent 
> logs before the system uses power?

I dunno. I do not use hibernation. I am a heavy user of the suspend
though. I s2ram all the time. And I have certainly experienced cases
where suspend has failed and I onlyi found out later when I've picked up
my laptop from my heat up bag. Nothing fatal has resulted from that but
this is certainly annoying.
-- 
Michal Hocko
SUSE Labs