4.9 and 4.14

OK, I had check  the code  did not  have  __GFP_ACCOUNT flag.

I will  double check on the latest version.

Maybe there something I do not know. 

Thanks for replying

bytedance.net
段熊春
duanxiongchun@bytedance.com




> On Nov 22, 2018, at 3:34 PM, Michal Hocko <mhocko@kernel.org> wrote:
> 
> On Thu 22-11-18 10:56:04, 段熊春 wrote:
>> After long time dig, we find their lots of offline but not release memcg object in memory eating lots of memory.
>> Why this memcg not release? Because the inode pagecache use  some page which is charged to those memcg,
> 
> As already explained these objects should be reclaimed under memory
> pressure. If they are not then there is a bug. And Roman has fixed some
> of those recently.
> 
> Which kernel version are you using?
> -- 
> Michal Hocko
> SUSE Labs