Re: omap3evm: Doesn't boot at 4fa42e46

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* Premi, Sanjeev <premi@xxxxxx> [100210 09:09]:
> > -----Original Message-----
> > From: linux-omap-owner@xxxxxxxxxxxxxxx 
> > [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of Premi, Sanjeev
> > Sent: Tuesday, February 09, 2010 9:34 PM
> > To: linux-omap@xxxxxxxxxxxxxxx
> > Subject: RE: omap3evm: Doesn't boot at 4fa42e46
> > 
> > > -----Original Message-----
> > > From: linux-omap-owner@xxxxxxxxxxxxxxx 
> > > [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of 
> > Premi, Sanjeev
> > > Sent: Tuesday, February 09, 2010 9:02 PM
> > > To: linux-omap@xxxxxxxxxxxxxxx
> > > Subject: omap3evm: Doesn't boot at 4fa42e46
> > > 
> > > Hi all,
> > > 
> > > Just updated my repo to the commit:
> > > 
> > > commit 4fa42e4679324b0e3c54fb509535eea3923ccb63
> > > Merge: e599f12 c446167
> > > Author: Tony Lindgren <tony@xxxxxxxxxxx>
> > > 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
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