Thread (30 messages) 30 messages, 5 authors, 2016-02-21
STALE3763d

Re: [PATCH v5 15/15] arm64: hibernate: Prevent resume from a different kernel version

From: Pavel Machek <hidden>
Date: 2016-02-16 20:15:57
Also in: linux-arm-kernel

On Tue 2016-02-16 15:49:27, James Morse wrote:
Resuming using a different kernel version is fragile, while there are
sufficient details in the hibernate arch-header to perform the restore,
changes in the boot process can have a long-lasting impact on the system.
In particular, if the EFI stub causes more memory to be allocated, the
amount of memory left for linux is reduced. If we are lucky, this will
cause restore to fail with the message:
Well, this does not close the door completely. 4.6-rc0 is going to be
very different from 4.6-rc1. Better solution would be to increase
version every time EFI stub changes, or maybe record ammount of memory
reserved for EFI.

Best regards,
									Pavel
									
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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