linux/arch/ia64
Jay Lan d3758f87f3 [IA64] kexec fails on systems with blocks of uncached memory
Currently a memory segment in memory map with attribute of EFI_MEMORY_UC
is denoted as "System RAM" in /proc/iomem, while memory of attribute
(EFI_MEMORY_WB|EFI_MEMORY_UC) is also labeled the same.

The kexec utility then includes uncached memory as part of vmcore. The
kdump kernel MCA'ed when it tries to save the vmcore to a disk. A normal
"cached" access may cause MCAs.

This patch would label memory with attribute of EFI_MEMORY_UC only as
"Uncached RAM" so that kexec would know not to include it in the vmcore.
I will submit a separate kexec-tools patch to the kexec list.

Signed-off-by: Jay Lan <jlan@sgi.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-09-22 14:21:19 -07:00
..
configs [IA64] Remove sn2_defconfig. 2008-08-18 15:33:40 -07:00
dig [PATCH] tty: Remove include of screen_info.h from tty.h 2006-07-10 13:24:16 -07:00
hp dma-mapping: add the device argument to dma_mapping_error() 2008-07-26 12:00:03 -07:00
ia32 [IA64] use generic compat_old_sys_readdir 2008-08-18 15:42:11 -07:00
include/asm [IA64] fix up bte.h 2008-09-10 10:48:06 -07:00
kernel [IA64] kexec fails on systems with blocks of uncached memory 2008-09-22 14:21:19 -07:00
kvm KVM: ia64: 'struct fdesc' build fix 2008-09-19 16:49:01 -07:00
lib [IA64] export copy_page() to modules 2007-12-07 16:10:19 -08:00
mm [IA64] Ensure cpu0 can access per-cpu variables in early boot code 2008-08-12 10:34:20 -07:00
oprofile Combine instrumentation menus in kernel/Kconfig.instrumentation 2007-10-19 11:53:54 -07:00
pci [IA64] pci_acpi_scan_root cleanup 2008-08-18 15:41:21 -07:00
scripts [IA64] don't assume that unwcheck.py is executable 2007-12-07 14:42:08 -08:00
sn [IA64] arch/ia64/sn/pci/tioca_provider.c: introduce missing kfree 2008-09-10 10:49:36 -07:00
uv [IA64] Fix CONFIG_IA64_SGI_UV build error 2008-06-16 09:02:03 -07:00
install.sh Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig [IA64] Eliminate trailing backquote in IA64_SGI_UV 2008-08-04 11:19:35 -07:00
Kconfig.debug [PATCH] Move Kprobes and Oprofile to "Instrumentation Support" menu 2005-11-07 07:53:35 -08:00
Makefile Pull pvops into release branch 2008-07-17 10:53:37 -07:00
module.lds Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00