From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
To: Michal Hocko <mhocko@kernel.org>, Yafang Shao <laoar.shao@gmail.com>
Cc: David Rientjes <rientjes@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Linux MM <linux-mm@kvack.org>
Subject: Re: [PATCH v2] memcg, oom: check memcg margin for parallel oom
Date: Thu, 16 Jul 2020 22:09:56 +0900 [thread overview]
Message-ID: <51e3b3c8-aa59-99b9-3519-80b352dfc7ae@i-love.sakura.ne.jp> (raw)
In-Reply-To: <20200716122150.GL31089@dhcp22.suse.cz>
On 2020/07/16 21:21, Michal Hocko wrote:
> If the oom report should be misleading then it would be better to not
> bother at all IMHO. From my experience the memory state is really useful
> when debugging ooms and having a reasonable snapshot is really
> important. IIRC Tetsuo was suggesting collecting all the information at
> the time of the oom and print that snapshot later on but the patch was
> quite invasive and didn't handle multiple OOMs from different oom
> domains - especially the dump_task part would need to link all the tasks
> for different oom contexts.
I did, and you just refused as always.
https://lore.kernel.org/linux-mm/20190830103504.GA28313@dhcp22.suse.cz/
https://lore.kernel.org/linux-mm/20190909113627.GJ27159@dhcp22.suse.cz/
next prev parent reply other threads:[~2020-07-16 13:10 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-14 13:57 [PATCH v2] memcg, oom: check memcg margin for parallel oom Yafang Shao
2020-07-14 14:05 ` Michal Hocko
2020-07-14 14:30 ` Chris Down
2020-07-14 18:46 ` David Rientjes
2020-07-15 1:44 ` Yafang Shao
2020-07-15 2:44 ` David Rientjes
2020-07-15 3:10 ` Yafang Shao
2020-07-15 3:18 ` David Rientjes
2020-07-15 3:31 ` Yafang Shao
2020-07-15 17:30 ` David Rientjes
2020-07-16 2:38 ` Yafang Shao
2020-07-16 7:04 ` David Rientjes
2020-07-16 11:53 ` Yafang Shao
2020-07-16 12:21 ` Michal Hocko
2020-07-16 13:09 ` Tetsuo Handa [this message]
2020-07-16 19:53 ` David Rientjes
2020-07-17 1:35 ` Yafang Shao
2020-07-17 19:26 ` David Rientjes
2020-07-18 2:15 ` Yafang Shao
2020-07-16 5:54 ` Tetsuo Handa
2020-07-16 6:11 ` Michal Hocko
2020-07-16 7:06 ` David Rientjes
2020-07-16 6:08 ` Michal Hocko
2020-07-16 6:56 ` David Rientjes
2020-07-16 7:12 ` Michal Hocko
2020-07-16 20:04 ` David Rientjes
2020-07-28 18:04 ` Johannes Weiner
2020-07-15 6:56 ` Michal Hocko
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