From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757886AbXJaA4W (ORCPT ); Tue, 30 Oct 2007 20:56:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753243AbXJaA4O (ORCPT ); Tue, 30 Oct 2007 20:56:14 -0400 Received: from nf-out-0910.google.com ([64.233.182.187]:4258 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752778AbXJaA4N (ORCPT ); Tue, 30 Oct 2007 20:56:13 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:date:to:cc:subject:message-id:in-reply-to:references:organization:x-mailer:mime-version:content-type:content-transfer-encoding:from; b=md2UfTIxp7/jBeX2GCmVnlipJPL0j2wUgVB/HyjARYNIPMoQ/0qJEEx+fYGCBrxwXj032OXIXUDz7RKwJCKodheu3byi6FM5xclO0shosZbvXNvi4HO0F+4ileOtoe/RtWdHqvmfGDlcj8yAe0YD4oxpqnCtHjiRKGXcakIHJ74= Date: Wed, 31 Oct 2007 02:56:21 -0700 To: Paul Mundt Cc: Kristoffer Ericson , linuxsh , linux-main Subject: Re: [SUPERH / PATA / SCSI] Unable to do start userland after kernel boot (BISECTED) Message-Id: <20071031025621.a9f3f880.Kristoffer.ericson@gmail.com> In-Reply-To: <20071025194618.GA26344@linux-sh.org> References: <20071025212240.a50c18b6.Kristoffer.ericson@gmail.com> <20071025194618.GA26344@linux-sh.org> Organization: JLime X-Mailer: Sylpheed 2.4.7 (GTK+ 2.12.1; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit From: Kristoffer Ericson Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 26 Oct 2007 04:46:18 +0900 Paul Mundt wrote: > On Thu, Oct 25, 2007 at 09:22:40PM -0700, Kristoffer Ericson wrote: > > The bottom line seems to be that it fails to attach scsi sg0. It > > explains why it doesn't work, but not why it stopped working. And this > > has nothing to do with the current kernel config, I've been over that > > the last 4 days. It all started when I synced my jlime-current.git > > repository with linux-2.6.git. As you can see I had 2.6.23-rc6 and then > > synced up to 2.6.23-rc8/rc9 and thats when the troubles started. > > > At least that suggests it's not fallout from the INTC changes in -rc1, so > that helps to narrow it down a bit. Since you have a known good and bad, > it would be nice if you could bisect this to figure out what exactly > caused the regression. There weren't any SH-specific changes between rc6 > and rc8/rc9 at least. I've spent a couple of hours bisecting it, and this is where it stops working. I haven't reversed the patch yet, simply because Im dead tired :D Will do that tommorow, but Im quite confident that this is the correct bug. 023ef184fff6ac2e7cba345708f35536a2a419cb is first bad commit commit 023ef184fff6ac2e7cba345708f35536a2a419cb Author: Stuart Menefy Date: Fri Sep 28 12:36:35 2007 +0900 sh: __copy_user() optimizations for small copies. This implements a fast-path for small (less than 12 bytes) copies, with the existing path treated as the slow-path and left as the default behaviour for all other copy sizes. Signed-off-by: Stuart Menefy Signed-off-by: Paul Mundt :040000 040000 43f62cf05d1f71a5564b232dfd9e8492af909a90 4ab51dc5b85bc9bc86d58331845e525a67751be8 My bisect log: *START_ BAD - _CURRENT_ 30 October "No Init found" BAD - b5869ce7f68b233ceb81465a7655be0d9a5f3dbb "Merge git://..sched" 15 October "No Init found" BAD - f248488b397d52717f6683e2e53200aa687ffc89 "merge infradead.org" 14 October "No Init found" BAD - 3749c66c67fb5c257771815c186bc32290cacf44 "merge git/avi/kvm" 13 October "No Init found" BAD - dcf397f037f52add9945eced57ca300ab6a4413c "merge sh-2.6" 13 October "No Init found" BAD - 5d9df8eeacec943c9599f1cfd1069bc8cced3de6 "sh: Fix SH-4 DMAC.." "8 October" "No Init found" BAD - e5137682a1ad48bc5306070935c277e262f119ef "sh: Tidy up gUSA .." "28 September" "No Init found" BAD - 023ef184fff6ac2e7cba345708f35536a2a419cb "sh: __copy_user().." "28 September" "No Init found" GOOD - 24eb17e0813490497f4d5b2fad218bdba402cece "sh: clkfwk: Support." "28 September" "WORKS!" GOOD - cb7af21f7d370edb3a6a6d3e15cb17c8fd61591e "sh: Use boot_cpu_d." "27 September" "WORKS!" GOOD - c167aeef232c45deaf5c6c9be00a1f71b14962d3 "sh: Kill off dupl.." "27 September" "WORKS!" GOOD - 1db4e9bb5682fd3fd3f37f7fe9c322e7c5bb7578 "sh: don't enable.." "11 September" "WORKS!" GOOD - ab9c232286c2b77be78441c2d8396500b045777e "Merge..libata-dev" 12 October "WORKS!" GOOD - ce9d3c9a6a9aef61525be07fe6ba27d937236aa2 "Merge-br.. for linux" 11 October "WORKS!" GOOD - d85f57938ad1d674dff8077a2e6a36a45dbe0e22 "Merge branch 'master'" 26 Sept "WORKS!" GOOD - 2aee6198652b32e5eaef29a8f8330a9dd15b8efd "fixes-jgarzik" 25 Sept "WORKS!" GOOD - f3d5e3a4155b6f42f6f6f0a2cc95ca0adbabe1af "[PPP] L2TP: Fix .. 19 Sept "WORKS!" GOOD - 53a3f3087be361dacfc02e7a85b6d6142a41ce8a ~2.6.23-rc 14 Sept "WORKS!" GOOD - ea3c4b126ad63bd782c7bb5266bb4fd88e203169 ~2.6.23-rc 4 Sept "WORKS!"