linux/arch
Vivek Goyal 983d5dbdb2 [PATCH] x86_64: Fix SMP bootup with CONFIG_KDUMP enabled
o This fix was posted for i386 long back. Posting it for x86_64.

  http://marc.theaimsgroup.com/?l=linux-kernel&m=110380103229830&w=2

o This patch fixes the problem of secondary cpus boot up. This situation
  is faced when kernel is built for default locations like 16MB and
  onwards. In this configuration, only primary cpu (BP) comes and
  secondary cpus don't boot.

o Problem occurs because in trampoline code, lgdt is not able to load the
  GDT as it happens to be situated beyond 16MB. This is due to the fact
  that cpu is still in real mode and default operand size is 16bit.

o This patch uses lgdtl instead of lgdt to force operand size to 32
  instead of 16.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11 19:09:58 -08:00
..
alpha [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
arm [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
arm26 [PATCH] dump_thread() cleanup 2006-01-10 08:01:25 -08:00
cris [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
frv Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2006-01-10 08:21:33 -08:00
h8300 [PATCH] h8300: remove MAGIC_ROM_PTR from memory.c 2006-01-10 09:31:26 -08:00
i386 [PATCH] i386/x86-64: make setup_early_printk() usage consistent 2006-01-11 19:05:04 -08:00
ia64 [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
m32r [PATCH] dump_thread() cleanup 2006-01-10 08:01:25 -08:00
m68k [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
m68knommu [PATCH] m68knommu: fix ram length of m5208evb board 2006-01-10 09:31:27 -08:00
mips [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
parisc [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
powerpc [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
ppc [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
s390 [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
sh [PATCH] dump_thread() cleanup 2006-01-10 08:01:25 -08:00
sh64 [PATCH] dump_thread() cleanup 2006-01-10 08:01:25 -08:00
sparc [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
sparc64 [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
um [PATCH] uml: kill an unused variable 2006-01-11 18:42:10 -08:00
v850 [PATCH] dump_thread() cleanup 2006-01-10 08:01:25 -08:00
x86_64 [PATCH] x86_64: Fix SMP bootup with CONFIG_KDUMP enabled 2006-01-11 19:09:58 -08:00
xtensa [PATCH] "tiny-make-id16-support-optional" fixes 2006-01-10 08:01:23 -08:00