Re: Loading initrd above 4G causes freeze on boot

From: Matt Fleming
Date: Wed Aug 13 2014 - 14:45:19 EST

On Wed, 13 Aug, at 07:38:14PM, Mantas MikulÄnas wrote:
> Here you go.
> [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x0000000137ffffff] usable


> [ 0.000000] reserve setup_data: [mem 0x0000000100000000-0x0000000137ffffff] usable


> [ 0.000000] efi: mem201: type=7, attr=0xf, range=[0x0000000100000000-0x0000000138000000) (896MB)

Nothing crazy here, unless we're getting the calculation wrong and
reading past the buffer, the code looks OK though. Or something like the
last page or so of that memory isn't actually free even though the
firmware tells us it is.

At this point, I think modifying the max address is the best way to
debug this further, and figure out what address causes the hang.

Matt Fleming, Intel Open Source Technology Center
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