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 32E926B0069 for ; Thu, 6 Oct 2016 02:35:18 -0400 (EDT) Received: by mail-it0-f69.google.com with SMTP id 189so26803846ity.1 for ; Wed, 05 Oct 2016 23:35:18 -0700 (PDT) Received: from lgeamrelo13.lge.com (LGEAMRELO13.lge.com. [156.147.23.53]) by mx.google.com with ESMTP id o144si16387745iod.235.2016.10.05.23.35.16 for ; Wed, 05 Oct 2016 23:35:17 -0700 (PDT) Date: Thu, 6 Oct 2016 15:35:15 +0900 From: Joonsoo Kim Subject: Re: [Bug 172981] New: [bisected] SLAB: extreme load averages and over 2000 kworker threads Message-ID: <20161006063515.GB2525@js1304-P5Q-DELUXE> 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> <002601d21f8f$1fe2fe40$5fa8fac0$@net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <002601d21f8f$1fe2fe40$5fa8fac0$@net> Sender: owner-linux-mm@kvack.org List-ID: To: Doug Smythies Cc: 'Vladimir Davydov' , 'Johannes Weiner' , 'Andrew Morton' , bugzilla-daemon@bugzilla.kernel.org, linux-mm@kvack.org On Wed, Oct 05, 2016 at 10:04:27PM -0700, Doug Smythies wrote: > 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. I think that what you find is correct one. It has no cover-letter so there is no [PATCH 0/2]. Anyway, to clarify, I add links to these patches. https://patchwork.kernel.org/patch/9361853 https://patchwork.kernel.org/patch/9359271 It would be very helpful if you test these patches. Thanks. -- 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