From owner-svn-src-head@freebsd.org Tue Apr 18 20:05:52 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 59BA8D44099; Tue, 18 Apr 2017 20:05:52 +0000 (UTC) (envelope-from ler@lerctr.org) Received: from thebighonker.lerctr.org (thebighonker.lerctr.org [IPv6:2001:470:1f0f:3ad:223:7dff:fe9e:6e8a]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "thebighonker.lerctr.org", Issuer "COMODO RSA Domain Validation Secure Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 2A698811; Tue, 18 Apr 2017 20:05:52 +0000 (UTC) (envelope-from ler@lerctr.org) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lerctr.org; s=lerami; h=Content-transfer-encoding:Content-type:Mime-version:In-Reply-To: References:Message-ID:CC:To:From:Subject:Date:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=VMs5fDnENkFwCREX8o86ZcmQ+GZ9JYY9oE5uvo5xys0=; b=HXM5E+BqYuWMlgPbSrsIvZz7ao pMnatnenQwAjrCrl52Up7bdagDQQDMAUrOzpHj80T1DLqGYetx0pCLOMSfIaGsqjlWUs2Eq4yVsEH 0/ShZJNyLooEl/vyUASaIoUpaTTv0tg+QdZQlsCQo9gOA8IrvhbO9y7mdPNFyilxbRKw=; Received: from [198.61.62.18] (port=1418 helo=[10.11.226.101]) by thebighonker.lerctr.org with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89 (FreeBSD)) (envelope-from ) id 1d0ZNn-000Gem-3M; Tue, 18 Apr 2017 15:05:51 -0500 User-Agent: Microsoft-MacOutlook/f.21.0.170409 Date: Tue, 18 Apr 2017 15:05:17 -0500 Subject: Re: svn commit: r317061 - in head: libexec/rpc.rstatd sys/amd64/amd64 sys/amd64/include sys/arm/arm sys/arm/include sys/arm64/include sys/cddl/contrib/opensolaris/uts/common/fs/zfs sys/compat/linprocfs... From: Larry Rosenman To: Alan Somers , Gleb Smirnoff CC: "svn-src-head@freebsd.org" , "svn-src-all@freebsd.org" , "src-committers@freebsd.org" Message-ID: Thread-Topic: svn commit: r317061 - in head: libexec/rpc.rstatd sys/amd64/amd64 sys/amd64/include sys/arm/arm sys/arm/include sys/arm64/include sys/cddl/contrib/opensolaris/uts/common/fs/zfs sys/compat/linprocfs... References: <201704171734.v3HHYlf5022945@repo.freebsd.org> In-Reply-To: Mime-version: 1.0 Content-type: text/plain; charset="UTF-8" Content-transfer-encoding: 7bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 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: Tue, 18 Apr 2017 20:05:52 -0000 On 4/18/17, 2:58 PM, "Alan Somers" wrote: On Mon, Apr 17, 2017 at 11:34 AM, Gleb Smirnoff wrote: > Author: glebius > Date: Mon Apr 17 17:34:47 2017 > New Revision: 317061 > URL: https://svnweb.freebsd.org/changeset/base/317061 > > Log: > - Remove 'struct vmmeter' from 'struct pcpu', leaving only global vmmeter > in place. To do per-cpu stats, convert all fields that previously were > maintained in the vmmeters that sit in pcpus to counter(9). > - Since some vmmeter stats may be touched at very early stages of boot, > before we have set up UMA and we can do counter_u64_alloc(), provide an > early counter mechanism: > o Leave one spare uint64_t in struct pcpu, named pc_early_dummy_counter. > o Point counter(9) fields of vmmeter to pcpu[0].pc_early_dummy_counter, > so that at early stages of boot, before counters are allocated we already > point to a counter that can be safely written to. > o For sparc64 that required a whole dummy pcpu[MAXCPU] array. > > Further related changes: > - Don't include vmmeter.h into pcpu.h. > - vm.stats.vm.v_swappgsout and vm.stats.vm.v_swappgsin changed to 64-bit, > to match kernel representation. > - struct vmmeter hidden under _KERNEL, and only vmstat(1) is an exclusion. > > This is based on benno@'s 4-year old patch: > https://lists.freebsd.org/pipermail/freebsd-arch/2013-July/014471.html > > Reviewed by: kib, gallatin, marius, lidl > Differential Revision: https://reviews.freebsd.org/D10156 > This change broke backwards compatibility with old top binaries. When I use a kernel at version 317094 but a top from 14-April, I get the error "top: sysctl(vm.stats.vm.v_swappgsin...) failed: Cannot allocate memory". I get the same error when running top from an 11.0-RELEASE jail. Can you please add backward compatibility shims? -Alan It also broke emulators/virtualbox-ose-kmod