Messages in this thread | | | Date | Fri, 31 Aug 2012 13:49:56 -0700 | From | Andrew Morton <> | Subject | Re: [RFC v8 PATCH 00/20] memory-hotplug: hot-remove physical memory |
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On Tue, 28 Aug 2012 18:00:07 +0800 wency@cn.fujitsu.com wrote:
> This patch series aims to support physical memory hot-remove.
Have you had much review and testing feedback yet?
> The patches can free/remove the following things: > > - acpi_memory_info : [RFC PATCH 4/19] > - /sys/firmware/memmap/X/{end, start, type} : [RFC PATCH 8/19] > - iomem_resource : [RFC PATCH 9/19] > - mem_section and related sysfs files : [RFC PATCH 10-11, 13-16/19] > - page table of removed memory : [RFC PATCH 12/19] > - node and related sysfs files : [RFC PATCH 18-19/19] > > If you find lack of function for physical memory hot-remove, please let me > know.
I doubt if many people have hardware which permits physical memory removal? How would you suggest that people with regular hardware can test these chagnes?
> Known problems: > 1. memory can't be offlined when CONFIG_MEMCG is selected.
That's quite a problem! Do you have a description of why this is the case, and a plan for fixing it?
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