From: Michal Hocko <mhocko@kernel.org>
To: yoma sophian <sophian.yoma@gmail.com>
Cc: linux-mm@kvack.org
Subject: Re: some question about order0 page allocation
Date: Fri, 14 Oct 2016 17:26:16 +0200 [thread overview]
Message-ID: <20161014152615.GB6105@dhcp22.suse.cz> (raw)
In-Reply-To: <CADUS3okBoQNW_mzgZnfr6evK2Qrx2TDtPygqnodn0CwtSyrA8w@mail.gmail.com>
On Fri 14-10-16 17:29:34, yoma sophian wrote:
[...]
> [ 5515.127555] dialog invoked oom-killer: gfp_mask=0x80d0, order=0,
> oom_score_adj=0
This looks like a GFP_KERNEL + something allocation
> [ 5515.444859] Normal: 4314*4kB (UEMC) 3586*8kB (UMC) 131*16kB (MC)
> 21*32kB (C) 6*64kB (C) 1*128kB (C) 0*256kB 0*512kB 0*1024kB 0*2048kB
> 0*4096kB = 49224kB
And it seems like CMA blocks are spread in all orders and no unmovable
allocations can fallback in them. It seems that there should be some
movable blocks but I do not have any idea why those are not used. Anyway
this is where I would start investigating.
--
Michal Hocko
SUSE Labs
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next prev parent reply other threads:[~2016-10-14 15:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-14 9:29 some question about order0 page allocation yoma sophian
2016-10-14 15:26 ` Michal Hocko [this message]
2016-10-16 11:01 ` yoma sophian
2016-10-17 13:12 ` Michal Hocko
2016-10-19 7:56 ` yoma sophian
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