From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F020A16F900; Fri, 1 Nov 2024 11:59:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=150.107.74.76 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730462368; cv=none; b=ciGAx99xnaw3ncjJ6nCkBLFHlYNMpbezrJ5BtijG9ZzqyQ8Yts5wpMHKFRS/xyHZ5oS0Vt/78D+r2bBJbHiPX8aPk4d5eagRqoBhBKaXnR8eTwqxuSOsw5WobikI5nqytOuokYNex/oKVVHF19kfimsXf3F133I9LMuE2aQEGkU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730462368; c=relaxed/simple; bh=Cy17cxS3exMAa5EYxCtbEI6xO583/s41JPE9jXkvWXk=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=bbO99RTYPOdoU5K2SmAjf7LDB4SujwsvhffZkC9AdqMuhP0GcNsatbW6DF+G3Cve15ZKsdMBMhX47sULv3EAyrHN9uWJdmhDH2pJBW1j4yo/5J3fdSzIWCMrFoA6ILIjoIF/cLzR3ps7rn+luTmrBsRm5N/4M2SrfbVI6mNV7h4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=canb.auug.org.au; spf=pass smtp.mailfrom=canb.auug.org.au; dkim=pass (2048-bit key) header.d=canb.auug.org.au header.i=@canb.auug.org.au header.b=A0AdBwlw; arc=none smtp.client-ip=150.107.74.76 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=canb.auug.org.au Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=canb.auug.org.au Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=canb.auug.org.au header.i=@canb.auug.org.au header.b="A0AdBwlw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canb.auug.org.au; s=201702; t=1730462359; bh=PxxK//bLD+jeJ2f15a2lFQhb+K2TaOY8DEpUcye4zX4=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=A0AdBwlwSnCruceC5TZQSMYy2U9wtrWwQEt0c2YlPTxqreaVj9FbW9D5JL04jiIqC jlKZB8sUg6cu+p89HdksEe2URJ4SjLgMpLZaRWGHviFqBzP5J93C++HWq69UwQtS+F X8fi4Rt41xbMctUb8AVBUkBpPCQ6JBrPcLO7BILKlc4g+glhFaqGPoua0zakWGHyW0 Fq7Q0jEANCp3eiXXbx4+eMM7N8fApkgiiiJ0SMnV6QThAa0nzL5v+Lc64h4brp8/7T I1DHM5+HvWEsAMs8s51wLZJgMWPvXptL4fJ6cKHtPTgqKgt9fEnO6LpUanKct14Rdt PYFDG74pSjJ2w== Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mail.ozlabs.org (Postfix) with ESMTPSA id 4XfztG6Jb6z4x3q; Fri, 1 Nov 2024 22:59:18 +1100 (AEDT) Date: Fri, 1 Nov 2024 22:59:16 +1100 From: Stephen Rothwell To: Thorsten Leemhuis Cc: Jonathan Corbet , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-next@vger.kernel.org, Mark Brown Subject: Re: [PATCH v2] docs: bug-bisect: add a note about bisecting -next Message-ID: <20241101225916.075af3aa@canb.auug.org.au> In-Reply-To: <0b8245f429a3cb162f8f6c0686081700a9c09cc4.1730441728.git.linux@leemhuis.info> References: <0b8245f429a3cb162f8f6c0686081700a9c09cc4.1730441728.git.linux@leemhuis.info> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/thZGsFuOZvPRq2.M2fnAQ.V"; protocol="application/pgp-signature"; micalg=pgp-sha256 --Sig_/thZGsFuOZvPRq2.M2fnAQ.V Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi Thorsten, Thanks for this. A couple of comments. On Fri, 1 Nov 2024 07:17:06 +0100 Thorsten Leemhuis = wrote: > > Explicitly mention how to bisect -next, as nothing in the kernel tree > currently explains that bisects between -next versions won't work well > and it's better to bisect between mainline and -next. >=20 > Co-developed-by: Mark Brown > Signed-off-by: Mark Brown > Reviewed-by: Mark Brown > Signed-off-by: Thorsten Leemhuis > --- > v2: > - slightly change patch descption > - make the text more how-toish to better match the rest of the document >=20 > v1: https://lore.kernel.org/all/20241022-doc-bisect-next-v1-1-196c0a60d55= 4@kernel.org/ > - initial release > --- > Documentation/admin-guide/bug-bisect.rst | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) >=20 > diff --git a/Documentation/admin-guide/bug-bisect.rst b/Documentation/adm= in-guide/bug-bisect.rst > index 585630d14581c7..47264c199247e6 100644 > --- a/Documentation/admin-guide/bug-bisect.rst > +++ b/Documentation/admin-guide/bug-bisect.rst > @@ -108,6 +108,27 @@ a fully reliable and straight-forward way to reprodu= ce the regression, too.* > With that the process is complete. Now report the regression as describe= d by > Documentation/admin-guide/reporting-issues.rst. > =20 > +Bisecting linux-next > +-------------------- > + > +If you face a problem only happening in linux-next, bisect between the > +linux-next branches 'stable' and 'master'. The following commands will s= tart > +the process for a linux-next tree you added as a remote called 'next':: > + > + git bisect start > + git bisect good next/stable > + git bisect bad next/master > + > +The 'stable' branch refers to the state of linux-mainline the current ^ that the curre= nt > +linux-next release (found in the 'master' branch) is based on -- the for= mer > +thus should be free of any problems that show up in -next, but not in Li= nus' > +tree. As you say, 'stable' only works for the current linux-next release. If you are trying to bisect a previous release, you can always find the SHA1 associated with the base of any linux-next release using "grep origin Next/SHA1s". Not sure how useful that is. --=20 Cheers, Stephen Rothwell --Sig_/thZGsFuOZvPRq2.M2fnAQ.V Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmckwpQACgkQAVBC80lX 0GzWJQf8CSBcTxvbMkxJSEKUQQ05RjNIA9X0dt9R5yolLNcg3sr6PVf3pbTMrLOA LtuhKJ+B39CLehUzMEmMnvVcaG1Bwm6PYMCv0kxHw1XcPOOVVOsSJVcX+WG0aqy2 WXYsDVGGnWffwpBUxsl48wxw6rvu0PZlIatnc76j1S8ckCEV6jlxM0UbK1NCl28l TrvfEkVt7HhYizwM259pgQy7yUuBDctdqpTj6cUTJjF7OMkvTNjC4OeiiSznrFuo yU/JfWUNxwEETksSUNvYUWf780LNv8T/7p5krYU8Y/OEOdQ3Ubg9+Inj4JADGQUY QgdoOaVggPa4jVZCsii3WOFIROyeBg== =e0eX -----END PGP SIGNATURE----- --Sig_/thZGsFuOZvPRq2.M2fnAQ.V--