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SubjectRe: [PATCH 0/3] Early use of boot service memory
On Wed, Nov 13, 2013 at 04:05:50PM -0800, H. Peter Anvin wrote:
> On 11/13/2013 03:57 PM, jerry.hoemann@hp.com 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.

Does you have a list of systems that require efi_reserve_boot_services?
might be useful from a testing standpoint to get access to one.


>
> >
> > 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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Jerry Hoemann Software Engineer Hewlett-Packard/MODL

3404 E Harmony Rd. MS 57 phone: (970) 898-1022
Ft. Collins, CO 80528 FAX: (970) 898-XXXX
email: jerry.hoemann@hp.com
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