Re: [PATCH v15 2/2] Add oom victim's memcg to the oom context information

[Michal Hocko]

On Wed 21-11-18 19:29:59, ufo19890607@xxxxxxxxx wrote:
> From: yuzhoujian <yuzhoujian@xxxxxxxxxxxxxxx>
> 
> The current oom report doesn't display victim's memcg context during the
> global OOM situation. While this information is not strictly needed, it
> can be really helpful for containerized environments to locate which
> container has lost a process. Now that we have a single line for the oom
> context, we can trivially add both the oom memcg (this can be either
> global_oom or a specific memcg which hits its hard limits) and task_memcg
> which is the victim's memcg.
> 
> Below is the single line output in the oom report after this patch.
> - global oom context information:
> oom-kill:constraint=<constraint>,nodemask=<nodemask>,cpuset=<cpuset>,mems_allowed=<mems_allowed>,global_oom,task_memcg=<memcg>,task=<comm>,pid=<pid>,uid=<uid>
> - memcg oom context information:
> oom-kill:constraint=<constraint>,nodemask=<nodemask>,cpuset=<cpuset>,mems_allowed=<mems_allowed>,oom_memcg=<memcg>,task_memcg=<memcg>,task=<comm>,pid=<pid>,uid=<uid>
> 
> Signed-off-by: yuzhoujian <yuzhoujian@xxxxxxxxxxxxxxx>

I thought I have acked this one already.
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
-- 
Michal Hocko
SUSE Labs