lkml.org 
[lkml]   [2017]   [Nov]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] mm, memcg: fix mem_cgroup_swapout() for THPs
On Tue, Nov 28, 2017 at 12:00 PM, Michal Hocko <mhocko@kernel.org> wrote:
> On Tue 28-11-17 08:19:41, Shakeel Butt wrote:
>> The commit d6810d730022 ("memcg, THP, swap: make mem_cgroup_swapout()
>> support THP") changed mem_cgroup_swapout() to support transparent huge
>> page (THP). However the patch missed one location which should be
>> changed for correctly handling THPs. The resulting bug will cause the
>> memory cgroups whose THPs were swapped out to become zombies on
>> deletion.
>
> Very well spotted! Have you seen this triggering or you found it by the
> code inspection?
>

By code inspection.

\
 
 \ /
  Last update: 2017-11-28 21:09    [W:0.056 / U:0.964 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site