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Re: More E820 brokenness
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From:
Rafael J. Wysocki <rjw@...>
To: H. Peter Anvin <hpa@...>
Cc: Jordan Crouse <jordan.crouse@...>, <jkeating@...>, Joerg Pommnitz <pommnitz@...>, Chuck Ebbert <cebbert@...>, Linux Kernel Mailing List <linux-kernel@...>, Andi Kleen <ak@...>
Subject:
Re: More E820 brokenness
Date: Friday, September 28, 2007 - 9:05 am
On Friday, 28 September 2007 02:12, H. Peter Anvin wrote:
quoted text
> Jordan Crouse wrote: > > > > Worked, but that just raises more questions. Why didn't more x86 boxes > > break or, alternatively, why did a new version of the BIOS fix the problem? > > I guess we shouldn't look a gift horse in the mouth. Or something. > > > > Why didn't more x86 boxes break... well, it's pretty natural an > implementation of the BIOS to not clobber registers that aren't outputs. > Arguably the BIOSes that do are still buggy, since there isn't a > well-defined calling sequence for the BIOS and the convention that has > evolved is "don't clobber anything unless it's an output." > > It's still wrong, however, especially since it means omitting the *real* > SMAP check.
I'd like to update
http://bugzilla.kernel.org/show_bug.cgi?id=9086
with correct information. Should I add a pointer to the patch from your previous message to it? Greetings, Rafael -
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Messages in current thread:
More E820 brokenness
, H. Peter Anvin
, (Thu Sep 27, 6:17 pm)
Re: More E820 brokenness
, Jordan Crouse
, (Thu Sep 27, 6:33 pm)
Re: More E820 brokenness
, H. Peter Anvin
, (Thu Sep 27, 6:47 pm)
Re: More E820 brokenness
, Jordan Crouse
, (Thu Sep 27, 7:15 pm)
Re: More E820 brokenness
, H. Peter Anvin
, (Thu Sep 27, 7:27 pm)
Re: More E820 brokenness
, Jordan Crouse
, (Thu Sep 27, 7:34 pm)
Re: More E820 brokenness
, H. Peter Anvin
, (Thu Sep 27, 7:36 pm)
Re: More E820 brokenness
, Jordan Crouse
, (Thu Sep 27, 7:54 pm)
Re: More E820 brokenness
, H. Peter Anvin
, (Thu Sep 27, 8:12 pm)
Re: More E820 brokenness
, Rafael J. Wysocki
, (Fri Sep 28, 9:05 am)
Re: More E820 brokenness
, H. Peter Anvin
, (Thu Sep 27, 7:22 pm)
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