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Re: GRUB2 for UEFI crashes at startup when we got 8 gigabyte of memory
From: |
Vladimir 'φ-coder/phcoder' Serbinenko |
Subject: |
Re: GRUB2 for UEFI crashes at startup when we got 8 gigabyte of memory |
Date: |
Tue, 04 Jan 2011 13:59:11 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.16) Gecko/20101226 Icedove/3.0.11 |
On 04/21/2010 09:53 AM, address@hidden wrote:
> In Febryary I was testing GRUB for UEFI and noticed that it was simply
> crashing.
>
> See topic
> http://lists.gnu.org/archive/html/grub-devel/2010-02/msg00000.html
>
> At that time I blamed incorrect UEFI implementation on that computer (cause
> it worked fine on another one), but now I noticed that when I took off one
> memory stick, everything is working fine on that special computer!!!!
>
> So, it seems that GRUB2 is crashing on computers with 8 gb of memory (or
> more?)
>
>
It has been discovered that some EFI implementations contrary to the
following sentence from the spec " any memory
space defined by the UEFI memory map is identity
mapped (virtual address equals physical address).
"
do not map the post-4G memory. Attached is a possible workaround. Can
you test it?
> Is it known bug? Are there workarounds?
>
>
> --
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>
--
Regards
Vladimir 'φ-coder/phcoder' Serbinenko
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Vladimir 'φ-coder/phcoder' Serbinenko <=