From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753122AbXC0DiY (ORCPT ); Mon, 26 Mar 2007 23:38:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932293AbXC0DiY (ORCPT ); Mon, 26 Mar 2007 23:38:24 -0400 Received: from smtp-out3.blueyonder.co.uk ([195.188.213.6]:47408 "EHLO smtp-out3.blueyonder.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753095AbXC0DiX (ORCPT ); Mon, 26 Mar 2007 23:38:23 -0400 Message-ID: <4608919C.4050007@blueyonder.co.uk> Date: Tue, 27 Mar 2007 04:38:04 +0100 From: Sid Boyce Reply-To: g3vbv@blueyonder.co.uk Organization: blueyonder.co.uk User-Agent: Thunderbird 1.5.0.10 (X11/20070221) MIME-Version: 1.0 To: Adrian Bunk CC: Randy Dunlap , "Eric W. Biederman" , linux-kernel@vger.kernel.org, auxsvr@gmail.com Subject: Re: 2.6.21-rc1 and 2.6.21-rc2 kwin dies silently References: <45E59D64.3070202@blueyonder.co.uk> <200702281805.13822.auxsvr@gmail.com> <20070307214730.87859590.akpm@linux-foundation.org> <45EFBC73.2030005@blueyonder.co.uk> <46016EAF.6010801@blueyonder.co.uk> <20070321193420.GP752@stusta.de> <4601DCB4.4060804@blueyonder.co.uk> <20070321184258.758a5a29.randy.dunlap@oracle.com> <20070322105908.GS752@stusta.de> In-Reply-To: <20070322105908.GS752@stusta.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Adrian Bunk wrote: > On Wed, Mar 21, 2007 at 06:42:58PM -0700, Randy Dunlap wrote: > >> On Thu, 22 Mar 2007 01:32:36 +0000 Sid Boyce wrote: >> >> >>> ... >>> >> There's not a lot of docs out there. >> >> The man-page: http://www.kernel.org/pub/software/scm/git/docs/git-bisect.html >> >> Linus's email doc: >> http://www.kernel.org/pub/software/scm/git/docs/howto/isolate-bugs-with-bisect.txt >> >> I worked on something over last weekend, but it doesn't really add >> much to the references above. >> ... >> > > > FWIW: > My standard instructions for users who are asked to bisect are [1]: > > > <-- snip --> > > # install git and cogito on your computer > > # clone Linus' tree: > cg-clone \ > git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git > > # start bisecting: > cd linux-2.6 > git bisect start > git bisect bad 86a71dbd3e81e8870d0f0e56b87875f57e58222b > git bisect good ac98695d6c1508b724f246f38ce57fb4e3cec356 > > # start round > cp /path/to/.config . > make oldconfig > make > # install kernel, check whether it's good or bad, then: > git bisect [bad|good] > # start next round > > > After at about 8 reboots, you'll have found the guilty commit > ("... is first bad commit"). > > > More information on git bisecting: > man git-bisect > > <-- snip --> > > > >> ~Randy >> > > cu > Adrian > > [1] the start and end commits and the number of reboots are variable, > but the rest of the text is generic > > This is what I've got so far on the first boot, I shall have to check the manpage for git-bisect again to see if there is anything else to be added, nothing enlightening seen so far - further reboots to be done. barrabas:/usr/src/GIT/linux-2.6 # git bisect bad Bisecting: 22 revisions left to test after this [3fc605a2aa38899c12180ca311f1eeb61a6d867e] knfsd: allow the server to provide a gid list when using AUTH_UNIX authentication rrabas:/usr/src/GIT/linux-2.6 # git bisect bad Bisecting: 11 revisions left to test after this [ed8b4d4d7a31923db32f4684535944d69eb43677] qconf: hide empty list items barrabas:/usr/src/GIT/linux-2.6 # rrabas:/usr/src/GIT/linux-2.6 # git bisect bad Bisecting: 6 revisions left to test after this [66e7c7230fed159e138fc1292ee662b8bbdb74d6] qconf: relocate Search Command barrabas:/usr/src/GIT/linux-2.6 # barrabas:/usr/src/GIT/linux-2.6 # git bisect bad Bisecting: 3 revisions left to test after this [895a39a084e5478121a74752a291165c4502378f] Make mkcompile_h use LANG=C and LC_ALL=C for $CC -v barrabas:/usr/src/GIT/linux-2.6 # git bisect bad Bisecting: 2 revisions left to test after this [8c7e4498adfdb4aea5a0d056590ec18d099ba062] search a little harder for mkimage barrabas:/usr/src/GIT/linux-2.6 # git bisect bad Bisecting: 1 revisions left to test after this [b7de8e7e3c7b79a72c20c7fd58bd65df3d146b13] ia64: fix noncoherent DMA API so devres builds # git bisect bad b7de8e7e3c7b79a72c20c7fd58bd65df3d146b13 is first bad commit commit b7de8e7e3c7b79a72c20c7fd58bd65df3d146b13 Author: Roland Dreier Date: Wed Feb 14 00:32:53 2007 -0800 [PATCH] ia64: fix noncoherent DMA API so devres builds On ia64, drivers/base/dma-mapping.c doesn't build because it calls dma_alloc_noncoherent() and dma_free_noncoherent(), which appear to be terminally broken; the calls end up generating errors like drivers/base/dma-mapping.c: In function 'dmam_noncoherent_release': drivers/base/dma-mapping.c:32: error: 'struct ia64_machine_vector' has no member named 'platform_dma_free_coherent' because the multiple levels of macro expansion in and end up turning a call to dma_free_noncoherent() into ia64_mv.platform_dma_free_coherent (instead of the intended ia64_mv.dma_free_coherent). This patch fixes this by converting dma_{alloc,free}_noncoherent() into inline functions that call the corresponding coherent functions, instead of trying to do this with macros. Signed-off-by: Roland Dreier Acked-by: Tony Luck Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds :040000 040000 ac36019577dc1846a5655918cf9d6b2541c398cf ba536f54303cc9495b7839763ed1121d3a22154c M include barrabas:/usr/src/GIT/linux-2.6 # git bisect bad 86a71dbd3e81e8870d0f0e56b87875f57e58222b Bisecting: 44 revisions left to test after this [208367eeec8d6f6fcee1a0672af2149aeee7b658] sysctl: cdrom: remove unnecessary insert_at_head flag barrabas:/usr/src/GIT/linux-2.6 # git bisect good ac98695d6c1508b724f246f38ce57fb4e3cec356 Bisecting: 44 revisions left to test after this [208367eeec8d6f6fcee1a0672af2149aeee7b658] sysctl: cdrom: remove unnecessary insert_at_head flag Regards Sid. -- Sid Boyce ... 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