From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-f197.google.com (mail-qk0-f197.google.com [209.85.220.197]) by kanga.kvack.org (Postfix) with ESMTP id DDBF06B0069 for ; Thu, 6 Oct 2016 01:04:32 -0400 (EDT) Received: by mail-qk0-f197.google.com with SMTP id n189so13161696qke.0 for ; Wed, 05 Oct 2016 22:04:32 -0700 (PDT) Received: from cmta17.telus.net (cmta17.telus.net. [209.171.16.90]) by mx.google.com with ESMTP id y123si2085366qka.7.2016.10.05.22.04.31 for ; Wed, 05 Oct 2016 22:04:31 -0700 (PDT) From: "Doug Smythies" References: <20160927111059.282a35c89266202d3cb2f953@linux-foundation.org> <20160928020347.GA21129@cmpxchg.org> <20160928080953.GA20312@esperanza> <20160929020050.GD29250@js1304-P5Q-DELUXE> <20160929134550.GB20312@esperanza> <20160930081940.GA3606@js1304-P5Q-DELUXE> q3x7bmIYYBMcWq3x9bnOYU In-Reply-To: q3x7bmIYYBMcWq3x9bnOYU Subject: RE: [Bug 172981] New: [bisected] SLAB: extreme load averages and over 2000 kworker threads Date: Wed, 5 Oct 2016 22:04:27 -0700 Message-ID: <002601d21f8f$1fe2fe40$5fa8fac0$@net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Content-Language: en-ca Sender: owner-linux-mm@kvack.org List-ID: To: 'Vladimir Davydov' , 'Joonsoo Kim' Cc: 'Johannes Weiner' , 'Andrew Morton' , bugzilla-daemon@bugzilla.kernel.org, linux-mm@kvack.org On 2016.09.30 12:59 Vladimir Davydov wrote: > Yeah, you're right. We'd better do something about this > synchronize_sched(). I think moving it out of the slab_mutex and calling > it once for all caches in memcg_deactivate_kmem_caches() would resolve > the issue. I'll post the patches tomorrow. Would someone please be kind enough to send me the patch set? I didn't get them, and would like to test them. I have searched and searched and did manage to find: "[PATCH 2/2] slub: move synchronize_sched out of slab_mutex on shrink" And a thread about a patch 1 of 2: "Re: [PATCH 1/2] mm: memcontrol: use special workqueue for creating per-memcg caches" Where I see me as "reported by", but I guess "reported by" people don't get the e-mails. I haven't found PATCH 0/2, nor do I know if what I did find is current. ... Doug -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org