[C/R ARM][PATCH 3/3] c/r: ARM implementation of checkpoint/restart

Christoffer Dall christofferdall at christofferdall.dk
Sun Mar 28 15:55:11 PDT 2010

On Fri, Mar 26, 2010 at 5:02 AM, Paul Mundt <lethal at linux-sh.org> wrote:
> On Fri, Mar 26, 2010 at 02:47:59AM +0000, Jamie Lokier wrote:
>> It's possible in principle to run many non-MMU binaries on MMU
>> kernels, but I've never heard of anyone doing it.
> FDPIC supports running the same binaries with or without MMU depending on
> your ABI, it's not really that uncommon, even if it's mostly just used
> for prototyping.
I would imagine that the chance that a restart will fail anyway when
restoring an MMU process on a non-MMU kernel. However, as you suggest,
the other way around should be possible. Thanks for clearing that up.

Specifically, do you know the meaning of the end_brk field on the
mm_context_t struct and if I need to checkpoint it on restart for
non-MMU systems (and potentially do something more clever during
restart on an MMU kernel?)

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