From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: omap3evm: Doesn't boot at 4fa42e46 Date: Wed, 10 Feb 2010 09:34:02 -0800 Message-ID: <20100210173401.GV21755@atomide.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mho-01-ewr.mailhop.org ([204.13.248.71]:56786 "EHLO mho-01-ewr.mailhop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755564Ab0BJRdZ (ORCPT ); Wed, 10 Feb 2010 12:33:25 -0500 Content-Disposition: inline In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "Premi, Sanjeev" Cc: "linux-omap@vger.kernel.org" * Premi, Sanjeev [100210 09:09]: > > -----Original Message----- > > From: linux-omap-owner@vger.kernel.org > > [mailto:linux-omap-owner@vger.kernel.org] On Behalf Of Premi, Sanjeev > > Sent: Tuesday, February 09, 2010 9:34 PM > > To: linux-omap@vger.kernel.org > > Subject: RE: omap3evm: Doesn't boot at 4fa42e46 > > > > > -----Original Message----- > > > From: linux-omap-owner@vger.kernel.org > > > [mailto:linux-omap-owner@vger.kernel.org] On Behalf Of > > Premi, Sanjeev > > > Sent: Tuesday, February 09, 2010 9:02 PM > > > To: linux-omap@vger.kernel.org > > > Subject: omap3evm: Doesn't boot at 4fa42e46 > > > > > > Hi all, > > > > > > Just updated my repo to the commit: > > > > > > commit 4fa42e4679324b0e3c54fb509535eea3923ccb63 > > > Merge: e599f12 c446167 > > > Author: Tony Lindgren > > > Date: Thu Feb 4 20:07:44 2010 -0800 > > > > > > The kernel builds fine; but doesn't boot on the OMAP3EVM. > > > > > > I have been able to trace the code until rest_init(); but > > > will need to restart debugging. > > > There seems to be an exception during execution. > > > > > > Will continue to dig further. This is just an FYI. > > > > > > > The kernel panics during I2C init in function omap3_evm_i2c_init() > > during this call: > > > > omap_register_i2c_bus(2, 400, NULL, 0); > > > > I see that there isn't any difference between omap3_evm_i2c_init() > > and omap3430_i2c_init(). Has anyone tried the booting 3430SDP at > > this commit? > > > > ...just trying to understand if this is a board specific issue > > OR is it a generic OMAP3 issue before I try bisect. > > > > ~sanjeev > > uImage created with omap3_defconfig at the HEAD boots fine on the > EVM. I couldn't find much differences between this defconfig and > my .config - related to i2c where the failure occurs. Maybe post the diff -u of the configs? > Unfortunately bisect didn't help much :( I just know the last > commit where the EVM boots fine (with defconfig). > > 9b17b59 : Add devkit8000_defconfig > > Just a snapshot of git-bisect from my command history: > > premi # git-bisect bad f9ffaa9 > Some good revs are not ancestor of the bad rev. > git bisect cannot work properly in this case. > Maybe you mistake good and bad revs? > premi # > premi # history | grep bisect | grep good > 512 git-bisect good c6348aa > 518 git-bisect good a9861b5 > 523 git-bisect good 9b17b59 > premi # > premi # history | grep bisect | grep bad > 507 git-bisect bad 4fa42e4 > 533 git-bisect bad 0b421ec > 538 git-bisect bad fc76be4 > 543 git-bisect bad 66ddfc6 > 547 git-bisect bad f9ffaa9 > premi # Can you try bisecting the omap for-next branch starting at 9ba874506b7b3883d78b8cad61eba39c4bb09885? If 9ba874506b7b3883d78b8cad61eba39c4bb09885 does not boot, then you have to start at 4f4e65d2484811210a2826fa9d59712c7fcf1b49. Otherwise you'll end up bisecting all kinds of merges.. Regards, Tony