On Thu, Feb 10, 2011 at 2:11 PM, Dave Martin [off-list ref] wrote:

On Thu, Feb 10, 2011 at 12:56 PM, Russell King - ARM Linux
[off-list ref] wrote:

quoted

On Wed, Feb 09, 2011 at 02:22:11PM +0000, Russell King - ARM Linux wrote:

quoted

On Wed, Jan 26, 2011 at 05:25:35PM +0000, Dave P. Martin wrote:

quoted

SMP_ON_UP fixups lead to vmlinux link errors if those sections are
discarded at link-time. ?In particular this may happen for built-in
__exit stuff.

This patch modifies the vmlinux linker script to reduce the amount
of discarded sections, and tries to make sure that __exit sections
are kept in.

This is a hack and probably wrong! ?Further discussion is needed.

Can you send the configuration which you see this problem with?
I've tried to build a kernel which inlines the spinlocks, but I find
that's not possible, so I'm doubting whether any fix is required for
mainline.

Any news on this, or can it not be reproduced?

Hi, apologies-- didn't see my mail for a bit.

I get the problem with this tree and config (which builds with
SMP_ON_UP and THUMB2_KERNEL for omap3/4):

Tree: git://git.linaro.org/people/dmart/linux-2.6-arm.git
dirty/arm/omap-thumb2+merged
Config: http://people.linaro.org/~dmart/arm_omap-thumb2+v2_config

Note that this tree contains some extra patches (though I believe
nothing is there which should cause the problem), and does not contain
everything from rmk/devel -- so it's possible this has been fixed in
the meantime or no longer occurs for some other reason...

Cheers
---Dave