Re: [PATCH 4/7] ppc64 - Specify amount of kernel memory at boot time

Dave Hansen wrote:

That sort of surprise is totally unacceptable but the behaviour of kernelcore needs to be consistent on both the x86 and the ppc (any any other ar. How about;

1. kernelcore=X determines the total amount of memory for !ZONE_EASYRCLM
    (be it ZONE_DMA, ZONE_NORMAL or ZONE_HIGHMEM)

Sounds reasonable.  But, if you're going to do that, should we just make
it the opposite and explicitly be easy_reclaim_mem=?  Do we want the
limit to be set as "I need this much kernel memory", or "I want this
much removable memory".  I dunno.

Now, amount of EASYRCLM memory can change in run time, but kernelcore memory
cannot. So, I like kernelcore= option. I think this is clear setting for admin.

-- Kame

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• References:
  • [PATCH 0/7] Reducing fragmentation using zones v5
    • From: Mel Gorman <[email protected]>
  • [PATCH 4/7] ppc64 - Specify amount of kernel memory at boot time
    • From: Mel Gorman <[email protected]>
  • Re: [PATCH 4/7] ppc64 - Specify amount of kernel memory at boot time
    • From: Dave Hansen <[email protected]>
  • Re: [PATCH 4/7] ppc64 - Specify amount of kernel memory at boot time
    • From: Mel Gorman <[email protected]>
  • Re: [PATCH 4/7] ppc64 - Specify amount of kernel memory at boot time
    • From: Dave Hansen <[email protected]>
  • Re: [PATCH 4/7] ppc64 - Specify amount of kernel memory at boot time
    • From: Mel Gorman <[email protected]>
  • Re: [PATCH 4/7] ppc64 - Specify amount of kernel memory at boot time
    • From: Dave Hansen <[email protected]>
  • Re: [PATCH 4/7] ppc64 - Specify amount of kernel memory at boot time
    • From: Mel Gorman <[email protected]>
  • Re: [PATCH 4/7] ppc64 - Specify amount of kernel memory at boot time
    • From: Dave Hansen <[email protected]>
  • Re: [PATCH 4/7] ppc64 - Specify amount of kernel memory at boot time
    • From: Mel Gorman <[email protected]>
  • Re: [PATCH 4/7] ppc64 - Specify amount of kernel memory at boot time
    • From: Dave Hansen <[email protected]>

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