From 1eff491fc44b9a1cd3483e289b987c2d00441f20 Mon Sep 17 00:00:00 2001 From: Yang Shi Date: Thu, 25 Feb 2021 18:12:54 -0800 Subject: [PATCH] doc: memcontrol: add description for oom_kill When debugging an oom issue, I found the oom_kill counter of memcg is confusing. At the first glance without checking document, I thought it just counts for memcg oom, but it turns out it counts both global and memcg oom. The cgroup v2 documents it, but the description is missed for cgroup v1. Signed-off-by: Yang Shi Reviewed-by: Shakeel Butt Acked-by: Michal Hocko Acked-by: Chris Down Link: https://lore.kernel.org/r/20210226021254.3980-1-shy828301@gmail.com Signed-off-by: Jonathan Corbet --- Documentation/admin-guide/cgroup-v1/memory.rst | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/admin-guide/cgroup-v1/memory.rst b/Documentation/admin-guide/cgroup-v1/memory.rst index 0936412e044e..44d5429636e2 100644 --- a/Documentation/admin-guide/cgroup-v1/memory.rst +++ b/Documentation/admin-guide/cgroup-v1/memory.rst @@ -851,6 +851,9 @@ At reading, current status of OOM is shown. (if 1, oom-killer is disabled) - under_oom 0 or 1 (if 1, the memory cgroup is under OOM, tasks may be stopped.) + - oom_kill integer counter + The number of processes belonging to this cgroup killed by any + kind of OOM killer. 11. Memory Pressure ===================