Hi Pavel, On 08/01/2020 17:59, Pavel Tatashin wrote: > On Wed, Jan 8, 2020 at 12:32 PM Will Deacon <will@xxxxxxxxxx> wrote: >> On Wed, Dec 04, 2019 at 10:59:13AM -0500, Pavel Tatashin wrote: >>> Many changes compared to version 6, so I decided to send it out now. >>> James Morse raised an important issue to which I do not have a solution >>> yet. But would like to discuss it. (Christmas was badly timed relative to my holiday, so its taken a while for me to catch up) The memory out of range of the idmap? I've posted an RFC here[0] that makes hibernate idmap is ttbr0 page. This should let you reuse that code and test it without a machine with a funny memory layout. Thanks, James [0] https://lore.kernel.org/linux-arm-kernel/20200115143322.214247-1-james.morse@xxxxxxx/