From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f69.google.com (mail-it0-f69.google.com [209.85.214.69]) by kanga.kvack.org (Postfix) with ESMTP id 0A9586B000D for ; Tue, 31 Jul 2018 10:25:18 -0400 (EDT) Received: by mail-it0-f69.google.com with SMTP id n194-v6so2792896itn.0 for ; Tue, 31 Jul 2018 07:25:18 -0700 (PDT) Received: from us.icdsoft.com (us.icdsoft.com. [192.252.146.184]) by mx.google.com with ESMTPS id p65-v6si10457414iop.187.2018.07.31.07.25.15 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 31 Jul 2018 07:25:15 -0700 (PDT) Subject: Re: [Bug 200651] New: cgroups iptables-restor: vmalloc: allocation failure References: <98788618-94dc-5837-d627-8bbfa1ddea57@icdsoft.com> <20180730135744.GT24267@dhcp22.suse.cz> <89ea4f56-6253-4f51-0fb7-33d7d4b60cfa@icdsoft.com> <20180730183820.GA24267@dhcp22.suse.cz> <56597af4-73c6-b549-c5d5-b3a2e6441b8e@icdsoft.com> <6838c342-2d07-3047-e723-2b641bc6bf79@suse.cz> <8105b7b3-20d3-5931-9f3c-2858021a4e12@icdsoft.com> <20180731140520.kpotpihqsmiwhh7l@breakpoint.cc> From: Georgi Nikolov Message-ID: <9cee281e-e6f4-20d1-401c-3c8b6fb744db@icdsoft.com> Date: Tue, 31 Jul 2018 17:25:04 +0300 MIME-Version: 1.0 In-Reply-To: <20180731140520.kpotpihqsmiwhh7l@breakpoint.cc> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Content-Language: en-US Sender: owner-linux-mm@kvack.org List-ID: To: Florian Westphal Cc: Vlastimil Babka , Michal Hocko , Andrew Morton , bugzilla-daemon@bugzilla.kernel.org, linux-mm@kvack.org, netfilter-devel@vger.kernel.org On 07/31/2018 05:05 PM, Florian Westphal wrote: > Georgi Nikolov wrote: >>> No, I think that's rather for the netfilter folks to decide. However,= it >>> seems there has been the debate already [1] and it was not found. The= >>> conclusion was that __GFP_NORETRY worked fine before, so it should wo= rk >>> again after it's added back. But now we know that it doesn't... >>> >>> [1] https://lore.kernel.org/lkml/20180130140104.GE21609@dhcp22.suse.c= z/T/#u >> Yes i see. I will add Florian Westphal to CC list. netfilter-devel is >> already in this list so probably have to wait for their opinion. > It hasn't changed, I think having OOM killer zap random processes > just because userspace wants to import large iptables ruleset is not a > good idea. And what about passing GFP_NORETRY only above some reasonable threshold? Or situation has to be handled in userspace. Regards, -- Georgi Nikolov