896MB address limit (was: Re: [PATCH 04/13] x86, mm: Revert back good_end setting for 64bit)

Eric W. Biederman ebiederm at xmission.com
Fri Oct 5 18:01:26 EDT 2012

I am going to see about merging these two threads.

Yinghai Lu <yinghai at kernel.org> writes:

> On Fri, Oct 5, 2012 at 2:41 PM, Eric W. Biederman <ebiederm at xmission.com> wrote:
>> Yinghai Lu <yinghai at kernel.org> writes:
>>> with bzImage or vmlinux?
>> bzImage I presume.  Certainly the bzImage has lost it's 896M limit,
>> which is where ultimiately the 896M limite came from.
> they are using updated kexec-tools ?
> last time when i checked the code for kexec-tools
> found the 896M problem was from kexec-tools bzimage support.

Cliff Wickman was the guy at sgi running the tests.

To the best of my knowledge he was runing an up to date kexec-tools and
was loading a bzImage.  Of course his initial reaction was where did the
896M limit come from, as he had just updated to a kernel with the limit
a few weeks ago.

YH please talk to Cliff directly.


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