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~3.5+GB RAM not supported on x86_64 #74

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anttikantee opened this issue May 13, 2016 · 1 comment
Open

~3.5+GB RAM not supported on x86_64 #74

anttikantee opened this issue May 13, 2016 · 1 comment

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@anttikantee
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Dunno if anyone would need so much memory with a unikernel, but documenting this one anyway. The reason for not it not being supported is the PCI window which occurs at <4GB, and hence RAM has to be split into multiple regions. The page allocator supports only one region of RAM. It's not hard to support more regions, but we'll just keep it on the list of things to implement using the JIT method.
@edescourtis
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Just FYI I have a use case for unikernels with more than 4GiB of RAM.

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@anttikantee @edescourtis