From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-f198.google.com (mail-qt0-f198.google.com [209.85.216.198]) by kanga.kvack.org (Postfix) with ESMTP id A3E226B0253 for ; Thu, 6 Oct 2016 12:02:07 -0400 (EDT) Received: by mail-qt0-f198.google.com with SMTP id g45so2293150qte.5 for ; Thu, 06 Oct 2016 09:02:07 -0700 (PDT) Received: from cmta16.telus.net (cmta16.telus.net. [209.171.16.89]) by mx.google.com with ESMTP id u67si8114293qkh.67.2016.10.06.09.02.06 for ; Thu, 06 Oct 2016 09:02:06 -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> <002601d21f8f$1fe2fe40$5fa8fac0$@net> s2GybGFijfdZcs2H3bZXPV In-Reply-To: s2GybGFijfdZcs2H3bZXPV Subject: RE: [Bug 172981] New: [bisected] SLAB: extreme load averages and over 2000 kworker threads Date: Thu, 6 Oct 2016 09:02:06 -0700 Message-ID: <002c01d21fea$fcb8bf20$f62a3d60$@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: 'Joonsoo Kim' Cc: 'Vladimir Davydov' , 'Johannes Weiner' , 'Andrew Morton' , bugzilla-daemon@bugzilla.kernel.org, linux-mm@kvack.org On 2016.10.05 23:35 Joonsoo Kim wrote: > 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. Yes, as best as I am able to test, the 2 patch set solves both this SLAB and the other SLUB bug reports. -- 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