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linux-2.6/arch/powerpc
Mel Gorman 6391af174a [PATCH] mm: use symbolic names instead of indices for zone initialisation
Arch-independent zone-sizing is using indices instead of symbolic names to
offset within an array related to zones (max_zone_pfns).  The unintended
impact is that ZONE_DMA and ZONE_NORMAL is initialised on powerpc instead
of ZONE_DMA and ZONE_HIGHMEM when CONFIG_HIGHMEM is set.  As a result, the
the machine fails to boot but will boot with CONFIG_HIGHMEM turned off.

The following patch properly initialises the max_zone_pfns[] array and uses
symbolic names instead of indices in each architecture using
arch-independent zone-sizing.  Two users have successfully booted their
powerpcs with it (one an ibook G4).  It has also been boot tested on x86,
x86_64, ppc64 and ia64.  Please merge for 2.6.19-rc2.

Credit to Benjamin Herrenschmidt for identifying the bug and rolling the
first fix.  Additional credit to Johannes Berg and Andreas Schwab for
reporting the problem and testing on powerpc.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-11 11:14:14 -07:00
..
boot [POWERPC] cell: fix default zImage build target 2006-10-10 11:54:26 +10:00
configs [POWERPC] Update maple defconfig 2006-10-10 11:54:26 +10:00
kernel Merge git://git.infradead.org/~dhowells/irq-2.6 2006-10-09 14:29:26 -07:00
lib [POWERPC] Fix rheap alignment problem 2006-10-02 20:27:47 +10:00
math-emu [POWERPC] ppc math-emu needs -fno-builtin-fabs for math.c and fabs.c 2006-09-26 15:24:35 +10:00
mm [PATCH] mm: use symbolic names instead of indices for zone initialisation 2006-10-11 11:14:14 -07:00
oprofile fix file specification in comments 2006-10-03 23:01:26 +02:00
platforms Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-10-10 16:16:33 -07:00
sysdev [HEADERS] Put linux/config.h out of its misery. 2006-10-09 19:13:51 -04:00
xmon [POWERPC] Fix xmon IRQ handler for pt_regs removal 2006-10-10 11:47:07 +10:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-10-04 08:16:37 -07:00
Kconfig.debug [POWERPC] print backtrace when entering xmon 2006-09-13 18:39:53 +10:00
Makefile [POWERPC] Create a "wrapper" script and use it in arch/powerpc/boot 2006-09-28 14:30:02 +10:00