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From: Johannes Weiner <hannes@cmpxchg.org>
To: Michal Hocko <mhocko@suse.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>,
	Nhat Pham <nphamcs@gmail.com>,
	akpm@linux-foundation.org, riel@surriel.com,
	roman.gushchin@linux.dev, shakeelb@google.com,
	muchun.song@linux.dev, tj@kernel.org, lizefan.x@bytedance.com,
	shuah@kernel.org, yosryahmed@google.com, linux-mm@kvack.org,
	kernel-team@meta.com, linux-kernel@vger.kernel.org,
	cgroups@vger.kernel.org
Subject: Re: [PATCH 0/2] hugetlb memcg accounting
Date: Mon, 2 Oct 2023 11:36:06 -0400	[thread overview]
Message-ID: <20231002153606.GB5054@cmpxchg.org> (raw)
In-Reply-To: <ZRrajQSHrwNLnXSe@dhcp22.suse.cz>

On Mon, Oct 02, 2023 at 04:58:21PM +0200, Michal Hocko wrote:
> Also there is not OOM as hugetlb pages are costly requests and we do not
> invoke the oom killer.

Ah good point.

That seems like a policy choice we could make. However, since hugetlb
users are already set up for and come to expect SIGBUS for physical
failure as well as hugetlb_cgroup limits, we should have memcg follow
established precedent and leave the OOM killer out.

Agree that a sentence in the changelog about this makes sense though.


  reply	other threads:[~2023-10-02 15:36 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-26 19:49 Nhat Pham
2023-09-26 19:49 ` [PATCH 1/2] hugetlb: memcg: account hugetlb-backed memory in memory controller Nhat Pham
2023-09-26 20:50 ` [PATCH 0/2] hugetlb memcg accounting Frank van der Linden
2023-09-26 22:14   ` Johannes Weiner
2023-09-27 12:50     ` Michal Hocko
2023-09-27 16:44       ` Johannes Weiner
2023-09-27 17:22         ` Nhat Pham
2023-09-26 23:31   ` Nhat Pham
2023-09-27 11:21 ` Michal Hocko
2023-09-27 18:47   ` Johannes Weiner
2023-09-27 21:37     ` Roman Gushchin
2023-09-28 12:52       ` Johannes Weiner
2023-10-01 23:27     ` Mike Kravetz
2023-10-02 14:42       ` Johannes Weiner
2023-10-02 14:58         ` Michal Hocko
2023-10-02 15:36           ` Johannes Weiner [this message]
2023-09-27 23:33   ` Nhat Pham
2023-09-28  1:00 ` Nhat Pham

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