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 E861D6B027C for ; Tue, 27 Sep 2016 23:14:03 -0400 (EDT) Received: by mail-qt0-f198.google.com with SMTP id y10so40544246qty.2 for ; Tue, 27 Sep 2016 20:14:03 -0700 (PDT) Received: from cmta17.telus.net (cmta17.telus.net. [209.171.16.90]) by mx.google.com with ESMTP id r55si3687342qta.62.2016.09.27.20.14.03 for ; Tue, 27 Sep 2016 20:14:03 -0700 (PDT) From: "Doug Smythies" References: <20160927111059.282a35c89266202d3cb2f953@linux-foundation.org> p4E0bHJB4CNDxp4E5bcDDz In-Reply-To: p4E0bHJB4CNDxp4E5bcDDz Subject: RE: [Bug 172981] New: [bisected] SLAB: extreme load averages and over 2000 kworker threads Date: Tue, 27 Sep 2016 20:13:58 -0700 Message-ID: <002a01d21936$5ca792a0$15f6b7e0$@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: 'Johannes Weiner' , 'Andrew Morton' , 'Vladimir Davydov' Cc: 'Joonsoo Kim' , bugzilla-daemon@bugzilla.kernel.org, linux-mm@kvack.org, Doug Smythies By the way, I can eliminate the problem by doing this: (see also: https://bugzilla.kernel.org/show_bug.cgi?id=172991) diff --git a/mm/slab.c b/mm/slab.c index b672710..a4edbfa 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -965,7 +965,7 @@ static int setup_kmem_cache_node(struct kmem_cache *cachep, * freed after synchronize_sched(). */ if (force_change) - synchronize_sched(); + kick_all_cpus_sync(); fail: kfree(old_shared); -- 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