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Date: Tue, 3 Oct 2017 22:57:40 +0200
From: Pavel Machek <pavel@ucw.cz>
To: Jiri Kosina <jikos@kernel.org>
Cc: "Luis R. Rodriguez" <mcgrof@kernel.org>, viro@zeniv.linux.org.uk,
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Subject: Re: [RFC 5/5] pm: remove kernel thread freezing
Message-ID: <20171003205739.GA30569@amd>
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On Tue 2017-10-03 22:38:33, Jiri Kosina wrote:
> On Tue, 3 Oct 2017, Pavel Machek wrote:
>=20
> > > This point I don't understand. What exactly do you mean?
> >=20
> > Hibernation:
> >=20
> > We freeze, do system snapshot, unfreeze, and write image to
> > disk.=20
>=20
> Where/why do you unfreeze between creating the snapshot and writing it=20
> out?

Yep, sorry, we don't unfreeze.

> Again, I agree that the (rare) kthreads that are actually "creating" new=
=20
> I/O have to be somehow frozen and require special care.

Agreed. Was any effort made to identify those special kernel threads?
									Pavel
--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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