Bjorn Helgaas 6d40fc514c [IA64] fail mmaps that span areas with incompatible attributes ... Example memory map (from HP sx1000 with VGA enabled): 0x00000 - 0x9FFFF supports only WB (cacheable) access 0xA0000 - 0xBFFFF supports only UC (uncacheable) access 0xC0000 - 0xFFFFF supports only WB (cacheable) access Some versions of X map the entire 0x00000-0xFFFFF area at once. With the example above, this mmap must fail because there's no memory attribute that's safe for the entire area. Prior to this patch, we performed the mmap with a UC mapping. When X accessed the WB memory at 0xC0000, it caused an MCA. The crash can happen when mapping 0xC0000 from either /dev/mem or a /sys/.../legacy_mem file. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>		2007-03-30 09:38:25 -07:00
..
configs	[IA64] refresh config files	2007-03-08 11:20:17 -08:00
dig	[PATCH] tty: Remove include of screen_info.h from tty.h	2006-07-10 13:24:16 -07:00
hp	[PATCH] mark struct file_operations const 2	2007-02-12 09:48:44 -08:00
ia32	[IA64] sync compat getdents	2007-03-06 14:49:24 -08:00
kernel	[IA64] fail mmaps that span areas with incompatible attributes	2007-03-30 09:38:25 -07:00
lib	[IA64] always build arch/ia64/lib/xor.o	2007-03-06 14:48:52 -08:00
mm	[IA64] make ioremap avoid unsupported attributes	2007-03-30 09:37:41 -07:00
oprofile	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
pci	[IA64] allow WB /sys/.../legacy_mem mmaps	2007-03-30 09:38:03 -07:00
scripts
sn	[IA64] Fix wrong /proc/iomem on SGI Altix	2007-03-20 13:54:44 -07:00
defconfig	[IA64] refresh config files	2007-03-08 11:20:17 -08:00
install.sh
Kconfig	ACPI: IA64: fix allnoconfig build	2007-03-19 23:41:51 -04:00
Kconfig.debug
Makefile	[IA64] add vmlinuz target	2006-06-21 14:31:07 -07:00
module.lds