Re: [RFC 5/5] pm: remove kernel thread freezing
From: Pavel Machek
Date: Tue Oct 03 2017 - 16:57:48 EST
On Tue 2017-10-03 22:38:33, Jiri Kosina wrote:
> On Tue, 3 Oct 2017, Pavel Machek wrote:
> > > This point I don't understand. What exactly do you mean?
> > Hibernation:
> > We freeze, do system snapshot, unfreeze, and write image to
> > disk.
> Where/why do you unfreeze between creating the snapshot and writing it
Yep, sorry, we don't unfreeze.
> Again, I agree that the (rare) kthreads that are actually "creating" new
> I/O have to be somehow frozen and require special care.
Agreed. Was any effort made to identify those special kernel threads?
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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