On 05/13/2010 09:13 AM, Ralf Baechle wrote:
On Wed, May 12, 2010 at 10:13:01AM -0700, David Daney wrote:
The kernel is always compiled with -msym32, so the patch is a bit pointless.
Not quite true. Some systems only have enough memory for the exception
vectors in the low 512MB of physical address space, so these can't use
an -msym32 kernel.
My general impression is that hardware designers "design" address maps by
throwing darts over their shoulder after a few pints ;-)
Well it was mostly a rhetorical point. Of course -msym32 is not
universal, but it is more common than not I would say. Because of that,
we should take a few more minutes and figure out how to make ftrace work
well with it.
David Daney