Uncompressing broken with commit e7db7b4270

[Uwe Kleine-König]

On Fri, Jan 29, 2010 at 04:12:08PM -0000, Colin Tuckley wrote:
> > -----Original Message-----
> > From: linux-arm-kernel-bounces at lists.infradead.org 
> > Behalf Of Catalin Marinas
> 
> > For whatever reason, with commit e7db7b4270 (arm: add support for
> > LZO-compressed kernels) if the kernel Image goes beyond a certain size
> > it fails to uncompress. Reverting this commit solves the problem.
> > Removing some random kernel features also solves the uncompressing as
> > the kernel image gets smaller.
> 
> My experiments appear to show that the problem appears as the kernel image
> grows above 2MB
> 
> When size is 2084132 (1.9MB) it boots
> 
> If I add something to make it slightly bigger (like Control Group
> Support)...
> 
> then size is 2103332 (2.005MB) and it fails to uncompress.
And does increasing the stack size helps?

e.g. s/4096/8192/ in arch/arm/boot/compressed/head.S (you need to change
two lines).

Best regards
Uwe

-- 
Pengutronix e.K.                              | Uwe Kleine-König            |
Industrial Linux Solutions                    | http://www.pengutronix.de/  |