Re: [stable] 2.6.23 boot failures on x86-64.

Christoph Lameter
2007-10-29T19:52:00Z

On Mon, 29 Oct 2007, Linus Torvalds wrote:

> We've had some changes since 2.6.23, and afaik, the
> "alloc_bootmem_high_node()" code is alreadt effectively dead there. It's
> only called if CONFIG_SPARSEMEM_VMEMMAP is *not* enabled, and I *think* we
> enable it by force on x86-64 these days.

CONFIG_SPARSEMEM_VMEMMAP was introduced in 2.6.24-rc1.

If I read this Kconfig.x86_64 correctly then it seems that DISCONTIG is
still the default. Andy?

config ARCH_DISCONTIGMEM_ENABLE
bool
depends on NUMA
default y

config ARCH_DISCONTIGMEM_DEFAULT
def_bool y
depends on NUMA

config ARCH_SPARSEMEM_ENABLE
def_bool y
depends on (NUMA || EXPERIMENTAL)
select SPARSEMEM_VMEMMAP_ENABLE

config ARCH_MEMORY_PROBE
def_bool y
depends on MEMORY_HOTPLUG

config ARCH_FLATMEM_ENABLE
def_bool y
depends on !NUMA