Prarit Bhargava d6be118a97 x86: fix memmap=exactmap boot argument ... When using kdump modifying the e820 map is yielding strange results. For example starting with BIOS-provided physical RAM map: BIOS-e820: 0000000000000100 - 0000000000093400 (usable) BIOS-e820: 0000000000093400 - 00000000000a0000 (reserved) BIOS-e820: 0000000000100000 - 000000003fee0000 (usable) BIOS-e820: 000000003fee0000 - 000000003fef3000 (ACPI data) BIOS-e820: 000000003fef3000 - 000000003ff80000 (ACPI NVS) BIOS-e820: 000000003ff80000 - 0000000040000000 (reserved) BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved) BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000ff000000 - 0000000100000000 (reserved) and booting with args memmap=exactmap memmap=640K@0K memmap=5228K@16384K memmap=125188K@22252K memmap=76K#1047424K memmap=564K#1047500K resulted in: user-defined physical RAM map: user: 0000000000000000 - 0000000000093400 (usable) user: 0000000000093400 - 00000000000a0000 (reserved) user: 0000000000100000 - 000000003fee0000 (usable) user: 000000003fee0000 - 000000003fef3000 (ACPI data) user: 000000003fef3000 - 000000003ff80000 (ACPI NVS) user: 000000003ff80000 - 0000000040000000 (reserved) user: 00000000e0000000 - 00000000f0000000 (reserved) user: 00000000fec00000 - 00000000fec10000 (reserved) user: 00000000fee00000 - 00000000fee01000 (reserved) user: 00000000ff000000 - 0000000100000000 (reserved) But should have resulted in: user-defined physical RAM map: user: 0000000000000000 - 00000000000a0000 (usable) user: 0000000001000000 - 000000000151b000 (usable) user: 00000000015bb000 - 0000000008ffc000 (usable) user: 000000003fee0000 - 000000003ff80000 (ACPI data) This is happening because of an improper usage of strcmp() in the e820 parsing code. The strcmp() always returns !0 and never resets the value for e820.nr_map and returns an incorrect user-defined map. This patch fixes the problem. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2008-09-09 11:54:53 -07:00
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alpha	[PATCH] fix osf_getdirents()	2008-08-25 01:18:06 -04:00
arm	[ARM] 5226/1: remove unmatched comment end.	2008-08-28 17:12:29 +01:00
avr32	avr32: Make atstk1006_nand_data definition static	2008-08-08 12:44:56 +02:00
blackfin	Blackfin arch: Fix PM building on BF52x: No ROTWE on BF52x, add USBWE	2008-08-28 17:32:01 +08:00
cris	removed unused #include <linux/version.h>'s	2008-08-23 12:14:12 -07:00
frv	FRV: Wire up new system calls	2008-08-01 13:03:49 -07:00
h8300	[h8300] move include/asm-h8300 to arch/h8300/include/asm	2008-08-13 14:26:32 -07:00
ia64	[IA64] Fix __{in,out}s{w,l} to handle unaligned data	2008-08-25 11:23:13 -07:00
m32r	m32r: use generic show_mem()	2008-07-26 12:00:11 -07:00
m68k	m68k: atari_keyb_init operator precedence fix	2008-09-02 10:57:52 -07:00
m68knommu	m68k{,nommu}: Wire up new system calls	2008-08-11 10:37:34 -07:00
mips	[MIPS] Ignore vmlinux.lds generated files	2008-08-26 09:10:27 +01:00
mn10300	removed unused #include <linux/version.h>'s	2008-08-23 12:14:12 -07:00
parisc	fix typo in arch/parisc/hpux/fs.c	2008-09-02 10:57:29 -07:00
powerpc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	2008-08-27 17:38:07 -07:00
s390	[S390] Fix linker script.	2008-08-25 18:15:01 +02:00
sh	Merge branch 'sh/for-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2008-08-20 08:46:11 -07:00
sparc	sparc: Fix resource flags for PCI children in OF device tree.	2008-08-28 22:59:10 -07:00
sparc64	sparc64: setup_valid_addr_bitmap_from_pavail() should be __init	2008-08-30 02:04:45 -07:00
um	uml: fix tty-related build error	2008-07-30 09:41:45 -07:00
x86	x86: fix memmap=exactmap boot argument	2008-09-09 11:54:53 -07:00
xtensa	remove unneeded #include <linux/ide.h>'s	2008-08-05 18:17:00 +02:00
.gitignore
Kconfig	tracehook: CONFIG_HAVE_ARCH_TRACEHOOK	2008-07-26 12:00:09 -07:00