From owner-freebsd-current@freebsd.org Wed Nov 20 17:43:05 2019 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 8D42D1BD727 for ; Wed, 20 Nov 2019 17:43:05 +0000 (UTC) (envelope-from lwhsu.freebsd@gmail.com) Received: from mail-yw1-f44.google.com (mail-yw1-f44.google.com [209.85.161.44]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47J95N4B7Rz47L7 for ; Wed, 20 Nov 2019 17:43:04 +0000 (UTC) (envelope-from lwhsu.freebsd@gmail.com) Received: by mail-yw1-f44.google.com with SMTP id y64so265986ywe.3 for ; Wed, 20 Nov 2019 09:43:04 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Q6oFDuh1bxTDF8fj2sIqkNprdodP7h2nurxcZaI3CFM=; b=N5KwIms+sNcj+gajWFVLkUKIudrXCdNk4CIlnkvgMJ27BtNdC/Eqb5UnpxNJ0vG22A Cf2oP7Zc9PK8AausuQAQ4Hvq6sPwP/SisGZucFDiiaeK//KDcsuJhq3t1PIe7fXtbKx+ xewjs44KY/o8GHxNk+VDM+TUrPo0/nLTkCA/JW5ySvLlK9KuDRV0gy6R0ktjhBAQ+jTX bLf+/6p+ZyFuUDKaTWkWUGbUQYJQG2NJevyENL2EqyIKXtKPWLnVws7IdpeVyChpvdIo MScd6rbWTdagRxXSc7h6PFr/K2T/9tkpFjt/pEgE4FNTpyy/530rHLws1qVQJX0kYlYQ BgeA== X-Gm-Message-State: APjAAAXJTfyMm3oaXYDx48pIsNhKscmNQg90/Hz7hblWLdSakZ23BVhy 0PwMrlisZ1eAnFp8VmkA0+QHtZh4uAgcfB/AGmPFwPr5 X-Google-Smtp-Source: APXvYqzq8Xahg3ciOleLncxo8awdyk2f1u6H9xdfCGvRM8yj7uLgrv0kzuMsyJMyDvQxXNn/9QeLZdNth5KBSsZJ184= X-Received: by 2002:a81:8301:: with SMTP id t1mr2498780ywf.400.1574271783028; Wed, 20 Nov 2019 09:43:03 -0800 (PST) MIME-Version: 1.0 References: <20191120173853.GB311@www.zefox.net> In-Reply-To: <20191120173853.GB311@www.zefox.net> From: Li-Wen Hsu Date: Thu, 21 Nov 2019 01:42:50 +0800 Message-ID: Subject: Re: Reverting -current by date. To: bob prohaska Cc: freebsd-current Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 47J95N4B7Rz47L7 X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of lwhsufreebsd@gmail.com designates 209.85.161.44 as permitted sender) smtp.mailfrom=lwhsufreebsd@gmail.com X-Spamd-Result: default: False [-4.91 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; DMARC_NA(0.00)[freebsd.org]; MIME_TRACE(0.00)[0:+]; TO_DN_ALL(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[44.161.85.209.list.dnswl.org : 127.0.5.0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; IP_SCORE(-2.91)[ip: (-9.35), ipnet: 209.85.128.0/17(-3.18), asn: 15169(-1.97), country: US(-0.05)]; FORGED_SENDER(0.30)[lwhsu@freebsd.org,lwhsufreebsd@gmail.com]; R_DKIM_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; TAGGED_FROM(0.00)[]; FROM_NEQ_ENVFROM(0.00)[lwhsu@freebsd.org,lwhsufreebsd@gmail.com]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Nov 2019 17:43:05 -0000 On Thu, Nov 21, 2019 at 1:39 AM bob prohaska wrote: > > From time to time it would be handy to revert freebsd-current to > an older, well-behaved revision. > > Is there a mechanism for identifying revision numbers that > will at least compile and boot, by date? > > In my case buildworld seems to be markedly slower than, say, > six months ago. Maybe it's hardware, maybe something else. Is > there a way to pick a revision number to revert to, that's > better than merely guessing? > > Thanks for reading, I suggest checking the build history in our CI system, for example, head-amd64: https://ci.freebsd.org/job/FreeBSD-head-amd64-build/ Li-Wen