* memory-hotplug have such a problem.
@ 2015-10-26 8:31 zhong jiang
0 siblings, 0 replies; only message in thread
From: zhong jiang @ 2015-10-26 8:31 UTC (permalink / raw)
To: linux-mm, linux-kernel; +Cc: qiuxishi, guohanjun, zhangdianfang
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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