kernel_optimize_test/arch
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
..
alpha [PATCH] fallout from alpha pt_regs patches 2006-10-09 14:19:07 -07:00
arm IRQ: Use the new typedef for interrupt handler function pointers 2006-10-09 12:19:47 +01:00
arm26 Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
avr32 [PATCH] IRQ: Fix AVR32 breakage 2006-10-11 11:14:14 -07:00
cris more misc typo fixes 2006-10-03 22:34:14 +02:00
frv IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
h8300 Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
i386 [PATCH] mm: use symbolic names instead of indices for zone initialisation 2006-10-11 11:14:14 -07:00
ia64 [PATCH] mm: use symbolic names instead of indices for zone initialisation 2006-10-11 11:14:14 -07:00
m32r [PATCH] m32r pt_regs fixes 2006-10-07 10:51:15 -07:00
m68k [PATCH] m68k/MVME167: SERIAL167 is no longer broken 2006-10-09 14:54:46 -07:00
m68knommu Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
mips [MIPS] Make sure cpu_has_fpu is used only in atomic context 2006-10-09 23:20:48 +01:00
parisc [PARISC] More pt_regs removal 2006-10-07 06:01:11 -06:00
powerpc [PATCH] mm: use symbolic names instead of indices for zone initialisation 2006-10-11 11:14:14 -07:00
ppc [PATCH] mm: use symbolic names instead of indices for zone initialisation 2006-10-11 11:14:14 -07:00
s390 [PATCH] s390 traps.c __user annotations 2006-10-09 14:19:08 -07:00
sh fix file specification in comments 2006-10-03 23:01:26 +02:00
sh64 fix file specification in comments 2006-10-03 23:01:26 +02:00
sparc [SPARC32]: Fix prom.c build warning 2006-10-09 18:10:16 -07:00
sparc64 [SPARC64]: Update defconfig. 2006-10-09 17:24:53 -07:00
um [PATCH] missed const in prototype 2006-10-10 15:37:24 -07:00
v850 Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
x86_64 [PATCH] mm: use symbolic names instead of indices for zone initialisation 2006-10-11 11:14:14 -07:00
xtensa fix file specification in comments 2006-10-03 23:01:26 +02:00