From: Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
To: David Rientjes <rientjes-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
Cc: Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>,
Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
KAMEZAWA Hiroyuki
<kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [patch 1/2] mm, memcg: avoid oom notification when current needs access to memory reserves
Date: Wed, 27 Nov 2013 22:16:10 -0500 [thread overview]
Message-ID: <20131128031610.GL3556@cmpxchg.org> (raw)
In-Reply-To: <alpine.DEB.2.02.1311271839290.5120-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
On Wed, Nov 27, 2013 at 06:52:10PM -0800, David Rientjes wrote:
> On Wed, 27 Nov 2013, Johannes Weiner wrote:
>
> > The long-standing, user-visible definition of the current line agrees
> > with me. You can't just redefine this, period.
> >
> > I tried to explain to you how insane the motivation for this patch is,
> > but it does not look like you are reading what I write. But you don't
> > get to change user-visible behavior just like that anyway, much less
> > so without a sane reason, so this was a complete waste of time :-(
> >
>
> If you would like to leave this to Andrew's decision, that's fine.
> Michal has already agreed with my patch and has acked it in -mm.
>
> If userspace is going to handle oom conditions, which is possible today
> and will be extended in the future, then it should only wakeup as a last
> resort when there is no possibility of future memory freeing.
I'll ack a patch that accomplishes that.
WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: David Rientjes <rientjes@google.com>
Cc: Michal Hocko <mhocko@suse.cz>,
Andrew Morton <akpm@linux-foundation.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
cgroups@vger.kernel.org
Subject: Re: [patch 1/2] mm, memcg: avoid oom notification when current needs access to memory reserves
Date: Wed, 27 Nov 2013 22:16:10 -0500 [thread overview]
Message-ID: <20131128031610.GL3556@cmpxchg.org> (raw)
In-Reply-To: <alpine.DEB.2.02.1311271839290.5120@chino.kir.corp.google.com>
On Wed, Nov 27, 2013 at 06:52:10PM -0800, David Rientjes wrote:
> On Wed, 27 Nov 2013, Johannes Weiner wrote:
>
> > The long-standing, user-visible definition of the current line agrees
> > with me. You can't just redefine this, period.
> >
> > I tried to explain to you how insane the motivation for this patch is,
> > but it does not look like you are reading what I write. But you don't
> > get to change user-visible behavior just like that anyway, much less
> > so without a sane reason, so this was a complete waste of time :-(
> >
>
> If you would like to leave this to Andrew's decision, that's fine.
> Michal has already agreed with my patch and has acked it in -mm.
>
> If userspace is going to handle oom conditions, which is possible today
> and will be extended in the future, then it should only wakeup as a last
> resort when there is no possibility of future memory freeing.
I'll ack a patch that accomplishes that.
--
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WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: David Rientjes <rientjes@google.com>
Cc: Michal Hocko <mhocko@suse.cz>,
Andrew Morton <akpm@linux-foundation.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
cgroups@vger.kernel.org
Subject: Re: [patch 1/2] mm, memcg: avoid oom notification when current needs access to memory reserves
Date: Wed, 27 Nov 2013 22:16:10 -0500 [thread overview]
Message-ID: <20131128031610.GL3556@cmpxchg.org> (raw)
In-Reply-To: <alpine.DEB.2.02.1311271839290.5120@chino.kir.corp.google.com>
On Wed, Nov 27, 2013 at 06:52:10PM -0800, David Rientjes wrote:
> On Wed, 27 Nov 2013, Johannes Weiner wrote:
>
> > The long-standing, user-visible definition of the current line agrees
> > with me. You can't just redefine this, period.
> >
> > I tried to explain to you how insane the motivation for this patch is,
> > but it does not look like you are reading what I write. But you don't
> > get to change user-visible behavior just like that anyway, much less
> > so without a sane reason, so this was a complete waste of time :-(
> >
>
> If you would like to leave this to Andrew's decision, that's fine.
> Michal has already agreed with my patch and has acked it in -mm.
>
> If userspace is going to handle oom conditions, which is possible today
> and will be extended in the future, then it should only wakeup as a last
> resort when there is no possibility of future memory freeing.
I'll ack a patch that accomplishes that.
next prev parent reply other threads:[~2013-11-28 3:16 UTC|newest]
Thread overview: 212+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-31 1:39 [patch] mm, memcg: add memory.oom_control notification for system oom David Rientjes
2013-10-31 1:39 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1310301838300.13556-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2013-10-31 5:49 ` Johannes Weiner
2013-10-31 5:49 ` Johannes Weiner
2013-10-31 5:49 ` Johannes Weiner
[not found] ` <20131031054942.GA26301-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2013-11-13 22:19 ` David Rientjes
2013-11-13 22:19 ` David Rientjes
2013-11-13 22:19 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1311131416460.23211-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2013-11-13 23:34 ` Johannes Weiner
2013-11-13 23:34 ` Johannes Weiner
2013-11-13 23:34 ` Johannes Weiner
2013-11-14 0:56 ` David Rientjes
2013-11-14 0:56 ` David Rientjes
2013-11-14 3:25 ` Johannes Weiner
2013-11-14 3:25 ` Johannes Weiner
[not found] ` <20131114032508.GL707-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2013-11-14 22:57 ` David Rientjes
2013-11-14 22:57 ` David Rientjes
2013-11-14 22:57 ` David Rientjes
2013-11-14 23:26 ` [patch 1/2] mm, memcg: avoid oom notification when current needs access to memory reserves David Rientjes
2013-11-14 23:26 ` David Rientjes
2013-11-14 23:26 ` [patch 2/2] mm, memcg: add memory.oom_control notification for system oom David Rientjes
2013-11-14 23:26 ` David Rientjes
2013-11-18 18:52 ` Michal Hocko
2013-11-18 18:52 ` Michal Hocko
[not found] ` <20131118185213.GA12923-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-11-19 1:25 ` David Rientjes
2013-11-19 1:25 ` David Rientjes
2013-11-19 1:25 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1311181722380.4292-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2013-11-19 12:41 ` Michal Hocko
2013-11-19 12:41 ` Michal Hocko
2013-11-19 12:41 ` Michal Hocko
[not found] ` <alpine.DEB.2.02.1311141525440.30112-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2013-11-18 12:52 ` [patch 1/2] mm, memcg: avoid oom notification when current needs access to memory reserves Michal Hocko
2013-11-18 12:52 ` Michal Hocko
2013-11-18 12:52 ` Michal Hocko
[not found] ` <20131118125240.GC32623-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-11-18 12:55 ` Michal Hocko
2013-11-18 12:55 ` Michal Hocko
2013-11-18 12:55 ` Michal Hocko
2013-11-19 1:19 ` David Rientjes
2013-11-19 1:19 ` David Rientjes
2013-11-18 15:41 ` Johannes Weiner
2013-11-18 15:41 ` Johannes Weiner
2013-11-18 15:41 ` Johannes Weiner
[not found] ` <20131118154115.GA3556-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2013-11-18 16:51 ` Michal Hocko
2013-11-18 16:51 ` Michal Hocko
2013-11-18 16:51 ` Michal Hocko
2013-11-19 1:22 ` David Rientjes
2013-11-19 1:22 ` David Rientjes
[not found] ` <20131118165110.GE32623-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-11-22 16:51 ` Johannes Weiner
2013-11-22 16:51 ` Johannes Weiner
2013-11-22 16:51 ` Johannes Weiner
[not found] ` <20131122165100.GN3556-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2013-11-27 0:53 ` David Rientjes
2013-11-27 0:53 ` David Rientjes
2013-11-27 0:53 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1311261648570.21003-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2013-11-27 16:34 ` Johannes Weiner
2013-11-27 16:34 ` Johannes Weiner
2013-11-27 16:34 ` Johannes Weiner
[not found] ` <20131127163435.GA3556-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2013-11-27 21:51 ` David Rientjes
2013-11-27 21:51 ` David Rientjes
2013-11-27 21:51 ` David Rientjes
2013-11-27 23:19 ` Johannes Weiner
2013-11-27 23:19 ` Johannes Weiner
2013-11-28 0:22 ` David Rientjes
2013-11-28 0:22 ` David Rientjes
2013-11-28 2:28 ` Johannes Weiner
2013-11-28 2:28 ` Johannes Weiner
[not found] ` <20131128022804.GJ3556-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2013-11-28 2:52 ` David Rientjes
2013-11-28 2:52 ` David Rientjes
2013-11-28 2:52 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1311271839290.5120-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2013-11-28 3:16 ` Johannes Weiner [this message]
2013-11-28 3:16 ` Johannes Weiner
2013-11-28 3:16 ` Johannes Weiner
2013-12-02 20:02 ` Michal Hocko
2013-12-02 20:02 ` Michal Hocko
[not found] ` <20131202200221.GC5524-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-12-02 21:25 ` Johannes Weiner
2013-12-02 21:25 ` Johannes Weiner
2013-12-02 21:25 ` Johannes Weiner
2013-12-03 12:04 ` Michal Hocko
2013-12-03 12:04 ` Michal Hocko
[not found] ` <20131203120454.GA12758-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-12-03 20:17 ` Johannes Weiner
2013-12-03 20:17 ` Johannes Weiner
2013-12-03 20:17 ` Johannes Weiner
2013-12-03 21:00 ` Michal Hocko
2013-12-03 21:00 ` Michal Hocko
2013-12-03 21:23 ` Johannes Weiner
2013-12-03 21:23 ` Johannes Weiner
2013-12-03 23:50 ` David Rientjes
2013-12-03 23:50 ` David Rientjes
2013-12-04 3:34 ` Johannes Weiner
2013-12-04 3:34 ` Johannes Weiner
[not found] ` <alpine.DEB.2.02.1312031544530.5946-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2013-12-04 11:13 ` Michal Hocko
2013-12-04 11:13 ` Michal Hocko
2013-12-04 11:13 ` Michal Hocko
2013-12-05 0:23 ` David Rientjes
2013-12-05 0:23 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1312041606260.6329-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2013-12-09 12:48 ` Michal Hocko
2013-12-09 12:48 ` Michal Hocko
2013-12-09 12:48 ` Michal Hocko
2013-12-09 21:46 ` David Rientjes
2013-12-09 21:46 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1312091328550.11026-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2013-12-09 22:51 ` Johannes Weiner
2013-12-09 22:51 ` Johannes Weiner
2013-12-09 22:51 ` Johannes Weiner
2013-12-10 10:38 ` Michal Hocko
2013-12-10 10:38 ` Michal Hocko
2013-12-10 10:38 ` Michal Hocko
[not found] ` <20131210103827.GB20242-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-12-11 1:03 ` David Rientjes
2013-12-11 1:03 ` David Rientjes
2013-12-11 1:03 ` David Rientjes
2013-12-11 9:55 ` Michal Hocko
2013-12-11 9:55 ` Michal Hocko
2013-12-11 22:40 ` David Rientjes
2013-12-11 22:40 ` David Rientjes
2013-12-12 10:31 ` Michal Hocko
2013-12-12 10:31 ` Michal Hocko
2013-12-12 10:50 ` Michal Hocko
2013-12-12 10:50 ` Michal Hocko
2013-12-12 10:50 ` Michal Hocko
2013-12-12 12:11 ` Michal Hocko
2013-12-12 12:11 ` Michal Hocko
2013-12-12 12:11 ` Michal Hocko
2013-12-12 12:37 ` Michal Hocko
2013-12-12 12:37 ` Michal Hocko
2013-12-13 23:55 ` David Rientjes
2013-12-13 23:55 ` David Rientjes
2013-12-17 16:23 ` Michal Hocko
2013-12-17 16:23 ` Michal Hocko
2013-12-17 20:50 ` David Rientjes
2013-12-17 20:50 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1312171240541.21640-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2013-12-18 20:04 ` Michal Hocko
2013-12-18 20:04 ` Michal Hocko
2013-12-18 20:04 ` Michal Hocko
2013-12-19 6:09 ` David Rientjes
2013-12-19 6:09 ` David Rientjes
2013-12-19 14:41 ` Michal Hocko
2013-12-19 14:41 ` Michal Hocko
[not found] ` <20131219144134.GH10855-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2014-01-08 0:25 ` Andrew Morton
2014-01-08 0:25 ` Andrew Morton
2014-01-08 0:25 ` Andrew Morton
[not found] ` <20140107162503.f751e880410f61a109cdcc2b-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2014-01-08 10:33 ` Michal Hocko
2014-01-08 10:33 ` Michal Hocko
2014-01-08 10:33 ` Michal Hocko
2014-01-09 14:30 ` [PATCH] memcg: Do not hang on OOM when killed by userspace OOM " Michal Hocko
2014-01-09 14:30 ` Michal Hocko
2014-01-09 14:30 ` Michal Hocko
2014-01-09 21:40 ` David Rientjes
2014-01-09 21:40 ` David Rientjes
2014-01-10 8:23 ` Michal Hocko
2014-01-10 8:23 ` Michal Hocko
2014-01-10 21:33 ` David Rientjes
2014-01-10 21:33 ` David Rientjes
2014-01-15 14:26 ` Michal Hocko
2014-01-15 14:26 ` Michal Hocko
2014-01-15 21:19 ` David Rientjes
2014-01-15 21:19 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1401151304430.10727-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2014-01-16 10:12 ` Michal Hocko
2014-01-16 10:12 ` Michal Hocko
2014-01-16 10:12 ` Michal Hocko
2014-01-21 6:13 ` David Rientjes
2014-01-21 6:13 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1401202158411.21729-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2014-01-21 13:21 ` Michal Hocko
2014-01-21 13:21 ` Michal Hocko
2014-01-21 13:21 ` Michal Hocko
2014-01-09 21:34 ` [patch 1/2] mm, memcg: avoid oom notification when current needs " David Rientjes
2014-01-09 21:34 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1401091324120.31538-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2014-01-09 22:47 ` Andrew Morton
2014-01-09 22:47 ` Andrew Morton
2014-01-09 22:47 ` Andrew Morton
2014-01-10 0:01 ` David Rientjes
2014-01-10 0:01 ` David Rientjes
2014-01-10 0:12 ` Andrew Morton
2014-01-10 0:12 ` Andrew Morton
2014-01-10 0:12 ` Andrew Morton
2014-01-10 0:23 ` David Rientjes
2014-01-10 0:23 ` David Rientjes
2014-01-10 0:35 ` David Rientjes
2014-01-10 0:35 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1401091613560.22649-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2014-01-10 22:14 ` Johannes Weiner
2014-01-10 22:14 ` Johannes Weiner
2014-01-10 22:14 ` Johannes Weiner
2014-01-12 22:10 ` David Rientjes
2014-01-12 22:10 ` David Rientjes
2014-01-15 14:34 ` Michal Hocko
2014-01-15 14:34 ` Michal Hocko
2014-01-15 21:23 ` David Rientjes
2014-01-15 21:23 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1401151319580.10727-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2014-01-16 9:32 ` Michal Hocko
2014-01-16 9:32 ` Michal Hocko
2014-01-16 9:32 ` Michal Hocko
2014-01-21 5:58 ` David Rientjes
2014-01-21 5:58 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1401202155410.21729-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2014-01-21 6:04 ` Greg Kroah-Hartmann
2014-01-21 6:04 ` Greg Kroah-Hartmann
2014-01-21 6:04 ` Greg Kroah-Hartmann
[not found] ` <20140121060428.GA19037-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2014-01-21 6:08 ` David Rientjes
2014-01-21 6:08 ` David Rientjes
2014-01-21 6:08 ` David Rientjes
2014-01-10 8:30 ` Michal Hocko
2014-01-10 8:30 ` Michal Hocko
2014-01-10 21:38 ` David Rientjes
2014-01-10 21:38 ` David Rientjes
2014-01-10 22:34 ` Johannes Weiner
2014-01-10 22:34 ` Johannes Weiner
2014-01-12 22:14 ` David Rientjes
2014-01-12 22:14 ` David Rientjes
2013-12-09 23:05 ` Johannes Weiner
2013-12-09 23:05 ` Johannes Weiner
2014-01-10 0:34 ` David Rientjes
2014-01-10 0:34 ` David Rientjes
[not found] ` <alpine.DEB.2.02.1311141447160.21413-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2013-11-18 15:54 ` [patch] mm, memcg: add memory.oom_control notification for system oom Johannes Weiner
2013-11-18 15:54 ` Johannes Weiner
2013-11-18 15:54 ` Johannes Weiner
2013-11-18 23:15 ` One Thousand Gnomes
2013-11-18 23:15 ` One Thousand Gnomes
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