From nobody Tue Aug 22 17:06:34 2023 X-Original-To: freebsd-current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4RVbNp3GPqz4r8fq for ; Tue, 22 Aug 2023 17:06:50 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: from mail-ed1-x531.google.com (mail-ed1-x531.google.com [IPv6:2a00:1450:4864:20::531]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1D4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4RVbNm25Bfz3DRt for ; Tue, 22 Aug 2023 17:06:48 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=bsdimp-com.20221208.gappssmtp.com header.s=20221208 header.b="1T4/XQus"; spf=none (mx1.freebsd.org: domain of wlosh@bsdimp.com has no SPF policy when checking 2a00:1450:4864:20::531) smtp.mailfrom=wlosh@bsdimp.com; dmarc=none Received: by mail-ed1-x531.google.com with SMTP id 4fb4d7f45d1cf-52a23227567so234091a12.0 for ; Tue, 22 Aug 2023 10:06:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20221208.gappssmtp.com; s=20221208; t=1692724006; x=1693328806; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=OhG0ySnsFbsRKCntDeL5BtQMtrJos56rFwz0KmgoEEU=; b=1T4/XQusLX+yWtMoaI+BJHyUgpILmt2FrfQMLUnYzGzsUvYlAdyKqDr9LimMEkPO96 Gs7bZU0Xi+3gvBfHlSJvwo2NfyN0Ae9QH69Dva4VKzwpfc4zRQi59dWlRbu2WphgPXxr nWdTVFdJHl6ju2pQ21J41eNMD+EnS7NQjfleo37r60TtXhXb9/79LI3/eE/sPWL54Rix 4S0K00Of2FWCrZoHO98rZ3WoCAhRVvRNHHmZNLuKKRwLy8IguC0HHI7CgqtmeB0qk36X 47l14C3oVnJl83NIQuKFpy6vVtpfINzqwgeIPTrkwbcGADgjLDK43B8Fd6BVoekPB5uV PLPQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692724006; x=1693328806; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=OhG0ySnsFbsRKCntDeL5BtQMtrJos56rFwz0KmgoEEU=; b=c1rtF74zeZ42U/LSpn1hPnHVODb2KdW63TGyDm46z+iEi/fdNGjpR82tpqJPLLseY4 wyxdvFBBMzdfQ7oc2m7X74/hwtkV/5WKSTxPr908C2MPco17Gun8/lgAGFfBZU6Cur/5 nBY4aHT4IWgReDC9zrQsdxH7zvDx3x7g6d+T24EuzusxxATZ85ErQmpX9fSqjmJOMmkQ I+1EMwzCWiulWVwl2a6rLKfQ9WWfo7XNGIRQKEBOvXRnxCaBk62WDwJNL3JP2IiqF0aM quq18+bdPyqUe82qbyHqjtGw9M0zULqk6yDVfRxyZOrFQnbAzBSR7wt3gnou5EDeVgT/ Tl1Q== X-Gm-Message-State: AOJu0YyRcVe+8PBEJpjpCMx6buslveyQx7M6mTtJxRZL+DCwNVQ4Sn0Q YKFXhNwEgcQ2lScVY3yqBo4ovF50IcQRJChUUvE20+iMDfpMKABi X-Google-Smtp-Source: AGHT+IFWprnoaJZnHQ9Mc8n8IH92t9iEt/f0ImsYzssHOm3wBQlQ8ka0wpLOaC30yjyhIORpaPtYj51rNefjEe/+Eyk= X-Received: by 2002:a17:907:2722:b0:982:45ca:ac06 with SMTP id d2-20020a170907272200b0098245caac06mr7706946ejl.60.1692724005894; Tue, 22 Aug 2023 10:06:45 -0700 (PDT) List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org MIME-Version: 1.0 References: In-Reply-To: From: Warner Losh Date: Tue, 22 Aug 2023 11:06:34 -0600 Message-ID: Subject: Re: Question about KBI change / new feature To: Zhenlei Huang Cc: FreeBSD CURRENT Content-Type: multipart/alternative; boundary="000000000000130bde06038605aa" X-Spamd-Result: default: False [-3.00 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.995]; FORGED_SENDER(0.30)[imp@bsdimp.com,wlosh@bsdimp.com]; R_DKIM_ALLOW(-0.20)[bsdimp-com.20221208.gappssmtp.com:s=20221208]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; MLMMJ_DEST(0.00)[freebsd-current@freebsd.org]; RCVD_COUNT_ONE(0.00)[1]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; RCVD_TLS_LAST(0.00)[]; R_SPF_NA(0.00)[no SPF record]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::531:from]; DKIM_TRACE(0.00)[bsdimp-com.20221208.gappssmtp.com:+]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; DMARC_NA(0.00)[bsdimp.com]; TO_DN_ALL(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; FROM_NEQ_ENVFROM(0.00)[imp@bsdimp.com,wlosh@bsdimp.com] X-Spamd-Bar: -- X-Rspamd-Queue-Id: 4RVbNm25Bfz3DRt --000000000000130bde06038605aa Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, Aug 21, 2023 at 9:42=E2=80=AFAM Zhenlei Huang wr= ote: > Hi, > > The https://www.freebsd.org/releases/14.0R/schedule/ says CURRENT/14 's > KBI is froze > and new features should be avoided. > > I'm working on https://reviews.freebsd.org/D39638 (sysctl(9): Enable vnet > sysctl variables be loader tunable) > and I think it is new feature, but not quite sure whether the KBI changed= . > > So, > > 1. Is it a KBI change ? > IMHO, It's a KPI change, not a KBI breakage. So from that perspective, it's OK. > 2. It is a simple change ( while so far as I know currently only tested b= y > myself on x86 and qemu riscv ), can > it catch up with 14 ? That I'm less sure of. I think it's good, but I'm gun shy about approving / committing vnet things. The review suggests, though, there's at least some consensus for having this in the tree. > Best regards, > Zhenlei > > > --000000000000130bde06038605aa Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


=
On Mon, Aug 21, 2023 at 9:42=E2=80=AF= AM Zhenlei Huang <zlei@freebsd.org> wrote:
Hi= ,

The https://www.freebsd.org/releases/14.0R/schedule/= says CURRENT/14 's KBI is froze
and new features should be avoided.

I'm working on https://reviews.freebsd.org/D39638 (sysctl(= 9): Enable vnet sysctl variables be loader tunable)
and I think it is new feature, but not quite sure whether the KBI changed.<= br>
So,

1. Is it a KBI change ?

IMHO, It's = a KPI change, not a KBI breakage. So from that perspective, it's OK.
=C2=A0
2. It is a simple change ( while so far as I know currently only tested by = myself on x86 and qemu riscv ), can
it catch up with 14 ?

That I'm less sur= e of. I think it's good, but I'm gun shy=C2=A0about approving / com= mitting vnet things. The review suggests,
though, there's at = least some consensus for having this in the tree.
=C2=A0
Best regards,
Zhenlei


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