From: Linus Torvalds <torvalds@linux-foundation.org>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: Andi Kleen <andi@firstfloor.org>,
Christoph Lameter <cl@linux.com>,
Michal Hocko <mhocko@kernel.org>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
Oleg Nesterov <oleg@redhat.com>,
Vladimir Davydov <vdavydov@parallels.com>,
Andrew Morton <akpm@linux-foundation.org>,
Markus Trippelsdorf <markus@trippelsdorf.de>,
Arkadiusz Miskiewicz <a.miskiewicz@gmail.com>,
Ralf-Peter Rohbeck <Ralf-Peter.Rohbeck@quantum.com>,
Jiri Slaby <jslaby@suse.com>, Olaf Hering <olaf@aepfle.de>,
Joonsoo Kim <js1304@gmail.com>, linux-mm <linux-mm@kvack.org>
Subject: Re: More OOM problems
Date: Mon, 19 Sep 2016 11:18:26 -0700 [thread overview]
Message-ID: <CA+55aFxgzE34D=a5ouRRgW-aca_GSsoVWX5TSOt_2rmJFQShQw@mail.gmail.com> (raw)
In-Reply-To: <78e34617-0c63-9f1f-f7c7-93dd64556307@suse.cz>
On Mon, Sep 19, 2016 at 7:41 AM, Vlastimil Babka <vbabka@suse.cz> wrote:
>
> There's no __GFP_NOWARN | __GFP_NORETRY, so it clearly wasn't the
> opportunistic "initial higher-order allocation". The logical conclusion is
> that it was a genuine order-3 allocation. 1kB allocation using order-3 would
> silently fail without OOM or warning, and then fallback to order-0.
Yes, I think you're right. The kcalloc() probably *was* a 32kB
allocation. In which case it's really more of a i915 driver issue.
I'll talk to the drm people and see if they can perhaps fix their
allocation patterns.
Linus
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next prev parent reply other threads:[~2016-09-19 18:18 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-18 20:03 Linus Torvalds
2016-09-18 20:26 ` Lorenzo Stoakes
2016-09-18 20:58 ` Linus Torvalds
2016-09-18 21:13 ` Vlastimil Babka
2016-09-18 21:34 ` Lorenzo Stoakes
2016-09-19 8:32 ` Michal Hocko
2016-09-19 8:42 ` Lorenzo Stoakes
2016-09-19 8:53 ` Michal Hocko
2016-09-25 21:48 ` Lorenzo Stoakes
2016-09-26 7:48 ` Michal Hocko
2016-09-18 21:00 ` Vlastimil Babka
2016-09-18 21:18 ` Linus Torvalds
2016-09-19 6:27 ` Jiri Slaby
2016-09-19 7:01 ` Michal Hocko
2016-09-19 7:52 ` Michal Hocko
2016-09-19 1:07 ` Andi Kleen
[not found] ` <alpine.DEB.2.20.1609190836540.12121@east.gentwo.org>
2016-09-19 14:31 ` Andi Kleen
2016-09-19 14:39 ` Michal Hocko
2016-09-19 14:41 ` Vlastimil Babka
2016-09-19 18:18 ` Linus Torvalds [this message]
2016-09-19 19:57 ` Christoph Lameter
2016-09-18 22:00 ` Vlastimil Babka
2016-09-19 6:56 ` Michal Hocko
2016-09-19 6:48 ` Michal Hocko
2016-09-21 7:04 ` Raymond Jennings
2016-09-21 7:29 ` Michal Hocko
2016-09-29 6:12 ` More OOM problems (sorry fro the mail bomb) Raymond Jennings
2016-09-29 7:03 ` Vlastimil Babka
2016-09-29 20:08 ` Raymond Jennings
2016-09-29 21:20 ` Vlastimil Babka
2016-09-30 19:48 ` Raymond Jennings
[not found] <eafb59b5-0a2b-0e28-ca79-f044470a2851@Quantum.com>
[not found] ` <20160930214448.GB28379@dhcp22.suse.cz>
[not found] ` <982671bd-5733-0cd5-c15d-112648ff14c5@Quantum.com>
2016-10-11 6:44 ` More OOM problems Michal Hocko
2016-10-11 7:10 ` Vlastimil Babka
2016-10-30 4:17 ` Simon Kirby
2016-10-31 21:41 ` Vlastimil Babka
2016-10-31 21:51 ` Vlastimil Babka
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