From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755640Ab0IAQKg (ORCPT ); Wed, 1 Sep 2010 12:10:36 -0400 Received: from mondschein.lichtvoll.de ([194.150.191.11]:52735 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752685Ab0IAQKf (ORCPT ); Wed, 1 Sep 2010 12:10:35 -0400 From: Martin Steigerwald To: Ken Moffat Subject: Re: help with git bisecting a bug 16376: random - possibly Radeon DRM KMS related - freezes Date: Wed, 1 Sep 2010 18:10:24 +0200 User-Agent: KMail/1.13.5 (Linux/2.6.33.7-tp42-toi-3.1.1.1-05125-ga817cb9; KDE/4.4.5; i686; ; ) Cc: linux-kernel@vger.kernel.org References: <201008312153.45792.Martin@lichtvoll.de> <20100831223921.GA23476@deepthought> (sfid-20100901_180804_207596_0BE2D449) In-Reply-To: <20100831223921.GA23476@deepthought> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2810095.oVqUAdDl7R"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201009011810.31642.Martin@lichtvoll.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --nextPart2810095.oVqUAdDl7R Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Am Mittwoch 01 September 2010 schrieb Ken Moffat: > On Tue, Aug 31, 2010 at 09:53:43PM +0200, Martin Steigerwald wrote: > > Hi! > >=20 > > I am seeking help with encircling the cause of: > >=20 > > [Bug 16376] random - possibly Radeon DRM KMS related - freezes > > https://bugzilla.kernel.org/show_bug.cgi?id=3D16376 > >=20 > > I started a bisection as described in which has been painful for me - > > at least for a first time bisection -, but after the second skip of > > a non- booting kernel git points me to a kernel that is outside of > > the initial range between good and back. > >=20 > > good is: [60b341b778cc2929df16c0a504c91621b3c6a4ad] Linux 2.6.33 > >=20 > > bad is: bad: [64ba9926759792cf7b95f823402e2781edd1b5d4] Merge branch > > 'for- linus' of git://git.open-osd.org/linux-open-osd > >=20 > > After skipping the last non booting kernel, git bisect put me to > > 5be796f0b842c5852d7397a82f8ebd6be8451872 which is just 300 lines > > after 2.6.33-rc2. > >=20 > > Obviously I am not interested in kernels prior 2.6.33. Should I just > > do a "git bisect good" without trying the kernel or is there some > > other remedy? its 11 cycles already without testing anything outside > > the initial good/bad range and it takes about half a day to be > > somewhat sure that a kernel is good, so I'd like to avoid testing > > versions outside this range. >=20 > While you are bisecting, don't believe the version in Makefile. I > got similarly freaked out a couple of years ago - if I understood > correctly, it's something to do with when a change was created. >=20 > The key point is that during bisection the apparent version *can* > go back to a version that appears to be before the initial "good" > kernel. I verified the version by running git log after doing the skip. And it was= =20 just 300 lines after Linus commited 2.6.33-rc2. Can git log be showing=20 incorrect results during a bisect? Thanks, =2D-=20 Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 --nextPart2810095.oVqUAdDl7R Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iEYEABECAAYFAkx+evEACgkQmRvqrKWZhMfl8wCfQLi07cHZftYmuqHA9rKK757t JQwAoKv/fyKrAd/AVlnBGmzGT6qMj9sg =FMje -----END PGP SIGNATURE----- --nextPart2810095.oVqUAdDl7R--