Re: memcg oops: memcg_kmem_charge_memcg()->try_charge()->page_counter_try_charge()->BOOM

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To: Roman Gushchin <guro@xxxxxx>
Subject: Re: memcg oops: memcg_kmem_charge_memcg()->try_charge()->page_counter_try_charge()->BOOM
From: Mike Galbraith <efault@xxxxxx>
Date: Tue, 30 Oct 2018 04:14:54 +0100
Cc: Michal Hocko <mhocko@xxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, linux-mm <linux-mm@xxxxxxxxx>, Johannes Weiner <hannes@xxxxxxxxxxx>, Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
In-reply-to: <20181029214913.GB13325@tower.DHCP.thefacebook.com>
References: <1540792855.22373.34.camel@gmx.de> <20181029132035.GI32673@dhcp22.suse.cz> <1540830938.10478.4.camel@gmx.de> <20181029185412.GA15760@tower.DHCP.thefacebook.com> <1540846014.4434.10.camel@gmx.de> <20181029214913.GB13325@tower.DHCP.thefacebook.com>

On Mon, 2018-10-29 at 21:49 +0000, Roman Gushchin wrote:
> On Mon, Oct 29, 2018 at 09:46:54PM +0100, Mike Galbraith wrote:
> 
> > Ah, I have cgroup_disable=memory on the command line, which turns out
> > to be why your box doesn't explode, while mine does.
> 
> Yeah, here it is. I'll send the fix in few minutes. Please,
> test it on your setup. Your tested-by will be appreciated.

Yup, all-better-by:/me

References:
- memcg oops: memcg_kmem_charge_memcg()->try_charge()->page_counter_try_charge()->BOOM
  - From: Mike Galbraith
- Re: memcg oops: memcg_kmem_charge_memcg()->try_charge()->page_counter_try_charge()->BOOM
  - From: Michal Hocko
- Re: memcg oops: memcg_kmem_charge_memcg()->try_charge()->page_counter_try_charge()->BOOM
  - From: Mike Galbraith
- Re: memcg oops: memcg_kmem_charge_memcg()->try_charge()->page_counter_try_charge()->BOOM
  - From: Roman Gushchin
- Re: memcg oops: memcg_kmem_charge_memcg()->try_charge()->page_counter_try_charge()->BOOM
  - From: Mike Galbraith
- Re: memcg oops: memcg_kmem_charge_memcg()->try_charge()->page_counter_try_charge()->BOOM
  - From: Roman Gushchin

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