From: Pekka Enberg <penberg@iki.fi>
To: Qian Cai <cai@lca.pw>, akpm@linux-foundation.org
Cc: catalin.marinas@arm.com, cl@linux.com, mhocko@kernel.org,
willy@infradead.org, penberg@kernel.org, rientjes@google.com,
iamjoonsoo.kim@lge.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4] kmemleak: survive in a low-memory situation
Date: Thu, 28 Mar 2019 08:05:31 +0200 [thread overview]
Message-ID: <c49208bf-b658-1d4e-a57e-8ca58c69afb1@iki.fi> (raw)
In-Reply-To: <20190327005948.24263-1-cai@lca.pw>
Hi,
On 27/03/2019 2.59, Qian Cai wrote:
> Unless there is a brave soul to reimplement the kmemleak to embed it's
> metadata into the tracked memory itself in a foreseeable future, this
> provides a good balance between enabling kmemleak in a low-memory
> situation and not introducing too much hackiness into the existing
> code for now.
Unfortunately I am not that brave soul, but I'm wondering what the
complication here is? It shouldn't be too hard to teach
calculate_sizes() in SLUB about a new SLAB_KMEMLEAK flag that reserves
spaces for the metadata.
- Pekka
next prev parent reply other threads:[~2019-03-28 6:05 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-27 0:59 [PATCH v4] kmemleak: survive in a low-memory situation Qian Cai
2019-03-27 8:44 ` Michal Hocko
2019-03-27 11:34 ` Qian Cai
2019-03-27 11:44 ` Michal Hocko
2019-03-27 13:05 ` Qian Cai
2019-03-27 13:17 ` Michal Hocko
2019-03-27 17:29 ` Catalin Marinas
2019-03-27 18:02 ` Qian Cai
2019-03-28 15:05 ` Catalin Marinas
2019-03-28 15:41 ` Qian Cai
2019-03-27 18:17 ` Michal Hocko
2019-03-27 18:21 ` Matthew Wilcox
2019-03-28 14:59 ` Catalin Marinas
2019-03-28 15:24 ` Qian Cai
2019-03-29 12:02 ` Michal Hocko
2019-03-29 16:16 ` Catalin Marinas
2019-04-01 20:12 ` Michal Hocko
2019-04-05 16:43 ` Catalin Marinas
2019-03-28 6:05 ` Pekka Enberg [this message]
2019-03-28 10:30 ` Catalin Marinas
2019-03-28 11:50 ` Pekka Enberg
2019-03-28 15:28 ` Catalin Marinas
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