Messages in this thread | | | Date | Mon, 26 Oct 2015 16:31:30 +0800 | From | zhong jiang <> | Subject | memory-hotplug have such a problem. |
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when I test the memory online or offline, I find the problem that memory online always return an error. I peform the operation as follow:
cd /sys/device/system/memory/ echo online > state
it always print "-bash: echo: write error: Operation not permitted". By my alalysis, I find that the error happen in the memory_notifier(MEM_GOING_ONLINE,&arg) in the function(online_pages()).
The problem occur in the latest kernel versin (linux 4.3.0 -rc4) , but In the lower version (linux 3.10) is correct. I think it may be caused by the confilct.
Thanks zhongjiang
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