From: Aaron Tomlin <atomlin@redhat.com>
To: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: Michal Hocko <mhocko@suse.com>, Waiman Long <llong@redhat.com>,
Shakeel Butt <shakeelb@google.com>, Linux MM <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Vlastimil Babka <vbabka@suse.cz>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH] mm/oom_kill: allow oom kill allocating task for non-global case
Date: Fri, 11 Jun 2021 10:27:43 +0100 [thread overview]
Message-ID: <20210611092743.lsxfavezj3sps5ay@ava.usersys.com> (raw)
In-Reply-To: <c205367d-f47e-61f3-3aed-fd8142a0010f@i-love.sakura.ne.jp>
On Thu 2021-06-10 23:06 +0900, Tetsuo Handa wrote:
> Yes, marking ineligible (i.e. oom_badness() returning LONG_MIN) tasks
> would be useful.
Sure. I'll send a patch to append this information; and the reason why
i.e. "yes: oom skipped" or "yes: oom score" or "yes: vfork" to dump_task()
with the use of some helper function e.g. is_task_eligible_oom().
> By the way, was the task namely "node" (i.e. PID 1703345) multithreaded
> program?
Unfortunately, I cannot confirm since the scenario/or situation is no
longer present in the vmcore; albeit, I believe so.
> Your kernel might want commit 7775face207922ea ("memcg: killed threads
> should not invoke memcg OOM killer").
Tetsuo-san,
Yes, this does appear to be a match.
Thanks for this.
Kind regards,
--
Aaron Tomlin
next prev parent reply other threads:[~2021-06-11 9:27 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-07 16:31 Aaron Tomlin
2021-06-07 16:42 ` Waiman Long
2021-06-07 18:43 ` Shakeel Butt
2021-06-07 18:51 ` Waiman Long
2021-06-07 19:04 ` Michal Hocko
2021-06-07 19:18 ` Waiman Long
2021-06-07 19:36 ` Michal Hocko
2021-06-07 20:03 ` Michal Hocko
2021-06-07 20:44 ` Waiman Long
2021-06-08 6:22 ` Michal Hocko
2021-06-08 9:39 ` Aaron Tomlin
2021-06-08 10:00 ` Aaron Tomlin
2021-06-08 13:58 ` Michal Hocko
2021-06-08 15:22 ` Tetsuo Handa
2021-06-08 16:17 ` Michal Hocko
2021-06-09 14:35 ` Aaron Tomlin
2021-06-10 10:00 ` Michal Hocko
2021-06-10 12:23 ` Aaron Tomlin
2021-06-10 12:43 ` Michal Hocko
2021-06-10 13:36 ` Aaron Tomlin
2021-06-10 14:06 ` Tetsuo Handa
2021-06-11 6:55 ` Michal Hocko
2021-06-11 9:27 ` Aaron Tomlin [this message]
2021-06-07 20:42 ` Waiman Long
2021-06-07 21:16 ` Aaron Tomlin
2021-06-07 19:04 ` Shakeel Butt
2021-06-07 20:07 ` Waiman Long
2021-06-07 19:01 ` Michal Hocko
2021-06-07 19:26 ` Waiman Long
2021-06-07 19:47 ` Michal Hocko
2021-06-07 21:17 ` Aaron Tomlin
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