Re: Linux 3.9-rc1

Yinghai Lu
2013-03-06T22:14:12Z

On Wed, Mar 6, 2013 at 1:49 PM, H. Peter Anvin <hpa@linux.intel.com> wrote:
> On 03/06/2013 01:33 PM, Yinghai Lu wrote:
>> On Wed, Mar 6, 2013 at 12:58 PM, H. Peter Anvin <hpa@linux.intel.com> wrote:
>>
>>> Excellent. Yinghai, can you write up the patch with a proper
>>> description and I'll put it into x86/urgent.
>>
>> I made it more robust: make sure real_end have 8M below it.
>> Please check attached one.
>>
>
> Sigh. This is why "keep the page tables together" is fundamentally the
> wrong strategy.
>
> 8M means that we won't even be able to boot on machines with less than
> 16M or so of RAM... I'm not sure if anyone still cares, but that is a
> pretty aggressive heuristic.

Henrik's system has 5M holes, so i picked 8M.

Current what is minimum ram is required for boot x86 32bit kernel? 8M?

Thanks

Yinghai