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Re: grub_efi_finish_boot_services not spec-compliant

From: Andrey Borzenkov
Subject: Re: grub_efi_finish_boot_services not spec-compliant
Date: Sun, 24 Feb 2013 09:13:20 +0400

В Sat, 23 Feb 2013 20:35:17 -0800
Seth Goldberg <address@hidden> пишет:

> Hi there,
>   On some systems, ExitBootServices() will fail due to a change in the memory 
> map during execution of the boot services call.   The UEFI spec says that in 
> that event, GetMemoryMap() should be repeated, then the new key passed to 
> another call to ExitBootServices().  Note that the spec doesn't give an upper 
> bound on the number of times to do this dance.  The logic in 
> grub_efi_finish_boot_services() just tries once, leading to a failure to 
> properly shut down boot services and various issue booting UEFI-compliant 
> operating systems.

I have seen reports about ELILO failing due to changed memory map too,
but ELILO does retry GetMemoryMap() and still fails
( Did you test if
increasing number of attempts to get memory map fixes it in your case?
What hardware is it?

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