From owner-svn-src-head@freebsd.org Sun Dec 10 23:08:06 2017 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C190BEA08B5; Sun, 10 Dec 2017 23:08:06 +0000 (UTC) (envelope-from cy.schubert@komquats.com) Received: from smtp-out-so.shaw.ca (smtp-out-so.shaw.ca [64.59.136.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "Client", Issuer "CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 55C606791C; Sun, 10 Dec 2017 23:08:05 +0000 (UTC) (envelope-from cy.schubert@komquats.com) Received: from spqr.komquats.com ([96.50.22.10]) by shaw.ca with SMTP id OAhReJeanss4TOAhSe7NR1; Sun, 10 Dec 2017 16:07:59 -0700 X-Authority-Analysis: v=2.2 cv=JuuBlIwC c=1 sm=1 tr=0 a=jvE2nwUzI0ECrNeyr98KWA==:117 a=jvE2nwUzI0ECrNeyr98KWA==:17 a=kj9zAlcOel0A:10 a=ocR9PWop10UA:10 a=6I5d2MoRAAAA:8 a=YxBL1-UpAAAA:8 a=GaScB4JjB8XvaHZ_hKcA:9 a=CjuIK1q_8ugA:10 a=IjZwj45LgO3ly-622nXo:22 a=Ia-lj3WSrqcvXOmTRaiG:22 Received: from slippy.cwsent.com (slippy [10.1.1.91]) by spqr.komquats.com (Postfix) with ESMTPS id ECE671572; Sun, 10 Dec 2017 15:07:56 -0800 (PST) Received: from slippy.cwsent.com (localhost [127.0.0.1]) by slippy.cwsent.com (8.15.2/8.15.2) with ESMTP id vBAN7u9v072531; Sun, 10 Dec 2017 15:07:56 -0800 (PST) (envelope-from Cy.Schubert@cschubert.com) Received: from slippy (cy@localhost) by slippy.cwsent.com (8.15.2/8.15.2/Submit) with ESMTP id vBAN7uUq072528; Sun, 10 Dec 2017 15:07:56 -0800 (PST) (envelope-from Cy.Schubert@cschubert.com) Message-Id: <201712102307.vBAN7uUq072528@slippy.cwsent.com> X-Authentication-Warning: slippy.cwsent.com: cy owned process doing -bs X-Mailer: exmh version 2.8.0 04/21/2012 with nmh-1.7 Reply-to: Cy Schubert From: Cy Schubert X-os: FreeBSD X-Sender: cy@cwsent.com X-URL: http://www.cschubert.com/ To: Andriy Gapon cc: Jeff Roberson , src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r326347 - in head/sys: kern sys vm In-Reply-To: Message from Andriy Gapon of "Thu, 07 Dec 2017 10:12:33 +0200." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sun, 10 Dec 2017 15:07:56 -0800 X-CMAE-Envelope: MS4wfOeIl8YmC0lfX3Bay2wvp2BXYKjzPkypb3aJqQTu8bKm/TI0DiUloAbRyvPHIsszQVKAo0OUJArreM3XJTvmcLpUp1Se1tbMx2ulBfK1LF+7aFH/B8ZF Q6Sc3gKdjCylXdCKWuhjAb1ckn+x7Q5g0DzASabnmn7wTT+klt49zrIabh0NlaxWs79lFKE8/wevucwSNfuCYohwJGRs8Fgl4tAH9xnCALmAcNZ5VFruWs5P /8xYinVHlPWqAKQ8mbawxS3heP7FWN8fNuGrXFTmR+oo4mYD6kixcYFoom3n7DTaITDlfu2Cnolln6FWEkHJmg== X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 10 Dec 2017 23:08:06 -0000 In message , Andriy Gapon wri tes: > On 29/11/2017 01:40, Jeff Roberson wrote: > > Eliminate kmem_arena and kmem_object in preparation for further NUMA comm > its. > > > > The arena argument to kmem_*() is now only used in an assert. A follow-u > p > > commit will remove the argument altogether before we freeze the API for t > he > > next release. > > > > This replaces the hard limit on kmem size with a soft limit imposed by UM > A. When > > the soft limit is exceeded we periodically wakeup the UMA reclaim thread > to > > attempt to shrink KVA. On 32bit architectures this should behave much mo > re > > gracefully as we exhaust KVA. On 64bit the limits are likely never hit. > > > > Reviewed by: markj, kib (some objections) > > Discussed with: alc > > Tested by: pho > > Sponsored by: Netflix / Dell EMC Isilon > > Differential Revision: https://reviews.freebsd.org/D13187 > > > Given this bug report https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=22408 > 0#c3 > can we revert this commit until its impact on ZFS is examined (and fixed)? > > Unfortunately, there is no public comment from you at all. > Not even "yes, I am aware, will be looking into it". Until we can address the ARC breakage, can we revert this, please? -- Cheers, Cy Schubert FreeBSD UNIX: Web: http://www.FreeBSD.org The need of the many outweighs the greed of the few.