Re: [PATCH 0/3] Early use of boot service memory

[H. Peter Anvin]

On 11/13/2013 03:57 PM, jerry.hoemann@xxxxxx wrote:
> 
> I think i can go to a date based black list, that removes the manual
> step.  System running firmware before certain date assumes we need
> to do the work around.  If firmware is newer than that date, we don't
> use the workaround.  Blacklist overrides and allows current behavior
> for new firmware that is subsequently found to be broken and for
> which we can't convenience the manufacturer to fix.
> 

No, we can't, at least not for now.  We are continually finding new
platforms with the bug.

> 
> I will still point out that as currently used, efi_reserve_boot_services
> is wrong.  A work around for firmware bugs on one platform shouldn't be
> breaking platforms that don't have that bug.  Its just much less likely
> to cause problems with higher crash kernel allocation.
> 

It is wrong, yes, but it seems like a ubiquitous problem.

	-hpa


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