At 10/20/2012 02:33 AM, KOSAKI Motohiro Wrote:
>> I think it again, and found that this check is necessary. Because we only
>> lock memory hotplug when offlining pages. Here is the steps to offline and
>> remove memory:
>>
>> 1. lock memory hotplug
>> 2. offline a memory section
>> 3. unlock
> I think it again, and found that this check is necessary. Because we only
> lock memory hotplug when offlining pages. Here is the steps to offline and
> remove memory:
>
> 1. lock memory hotplug
> 2. offline a memory section
> 3. unlock memory hotplug
> 4. repeat 1-3 to offline all memory
At 2012/10/19 18:44, Wen Congyang Wrote:
At 10/06/2012 03:27 AM, KOSAKI Motohiro Wrote:
On Thu, Oct 4, 2012 at 10:25 PM, Yasuaki Ishimatsu
wrote:
When calling remove_memory(), the memory should be offline. If the function
is used to online memory, kernel panic may occur.
So the patch checks
At 10/06/2012 03:27 AM, KOSAKI Motohiro Wrote:
> On Thu, Oct 4, 2012 at 10:25 PM, Yasuaki Ishimatsu
> wrote:
>> When calling remove_memory(), the memory should be offline. If the function
>> is used to online memory, kernel panic may occur.
>>
>> So the patch checks whether memory is offline or
At 10/06/2012 03:27 AM, KOSAKI Motohiro Wrote:
On Thu, Oct 4, 2012 at 10:25 PM, Yasuaki Ishimatsu
isimatu.yasu...@jp.fujitsu.com wrote:
When calling remove_memory(), the memory should be offline. If the function
is used to online memory, kernel panic may occur.
So the patch checks whether
At 2012/10/19 18:44, Wen Congyang Wrote:
At 10/06/2012 03:27 AM, KOSAKI Motohiro Wrote:
On Thu, Oct 4, 2012 at 10:25 PM, Yasuaki Ishimatsu
isimatu.yasu...@jp.fujitsu.com wrote:
When calling remove_memory(), the memory should be offline. If the function
is used to online memory, kernel panic
I think it again, and found that this check is necessary. Because we only
lock memory hotplug when offlining pages. Here is the steps to offline and
remove memory:
1. lock memory hotplug
2. offline a memory section
3. unlock memory hotplug
4. repeat 1-3 to offline all memory sections
5.
At 10/20/2012 02:33 AM, KOSAKI Motohiro Wrote:
I think it again, and found that this check is necessary. Because we only
lock memory hotplug when offlining pages. Here is the steps to offline and
remove memory:
1. lock memory hotplug
2. offline a memory section
3. unlock memory hotplug
4.
On Thu, Oct 4, 2012 at 10:25 PM, Yasuaki Ishimatsu
wrote:
> When calling remove_memory(), the memory should be offline. If the function
> is used to online memory, kernel panic may occur.
>
> So the patch checks whether memory is offline or not.
You don't explain WHY we need the check.
> CC:
On Thu, Oct 4, 2012 at 10:25 PM, Yasuaki Ishimatsu
isimatu.yasu...@jp.fujitsu.com wrote:
When calling remove_memory(), the memory should be offline. If the function
is used to online memory, kernel panic may occur.
So the patch checks whether memory is offline or not.
You don't explain WHY we
When calling remove_memory(), the memory should be offline. If the function
is used to online memory, kernel panic may occur.
So the patch checks whether memory is offline or not.
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC:
When calling remove_memory(), the memory should be offline. If the function
is used to online memory, kernel panic may occur.
So the patch checks whether memory is offline or not.
CC: David Rientjes rient...@google.com
CC: Jiang Liu liu...@gmail.com
CC: Len Brown len.br...@intel.com
CC:
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