Messages in this thread |  | | | Date | Mon, 09 Jul 2007 14:45:35 +1000 | | From | Nick Piggin <> | | Subject | Re: Hibernation Redesign |
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Jeremy Maitin-Shepard wrote: > Nick Piggin <nickpiggin@yahoo.com.au> writes:
>>This is the Morton method, isn't it? :) I remember it sounding like a >>very good idea when he brought it up, but I can't remember the details >>of why it was rejected or what the problems were. > > > Perhaps he did bring it up before I did. Please forward me a link to > the thread or other reference if you can find it, as I'd be interested > in reading it.
Sent in the next mail.
>>I suspect that freeing memory on the fly for the new kernel >>would be non-trivial (but possible), however simply having a reserve >>RAM region for the new kernel would be fine for a first step. > > > Freeing memory on the fly should be extremely easy for the kernel (this > is precisely what it does when it needs to satisfy an allocation). Note > that the memory allocated need not be contiguous.
Yes, I have a rough idea about how page reclaim works. But I just mean it would not be trivial to load the new kernel into physically discontiguous memory. Possible of course, but I don't think kexec or the setup code could quite cope ATM.
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