Hello, I has a problem with the patch "Make saved_max_pfn point to max_pfn of entire system": On a HP rx8640 system with following memory map, the saved_max_pfn was wrong, i.e. there was memory in /proc/iomem marked as "System RAM" but above saved_max_pfn. This patch fixes the problem. If you have a better solution, please give me some hints. Thanks! Memory map: mem00: type=7, attr=0x8, range=[0x0000000000000000-0x0000000004000000) (64MB) mem01: type=2, attr=0x8, range=[0x0000000004000000-0x0000000004c92000) (12MB) mem02: type=7, attr=0x8, range=[0x0000000004c92000-0x000000003fffc000) (947MB) mem03: type=6, attr=0x8000000000000008, range=[0x000000003fffc000-0x000000003fffe000) (0MB) mem04: type=0, attr=0x8000000000000008, range=[0x000000003fffe000-0x0000000040000000) (0MB) mem05: type=11, attr=0x8000000000000001, range=[0x00000000fed00000-0x00000000fed80000) (0MB) mem06: type=11, attr=0x8000000000000001, range=[0x00000000fee00000-0x00000000fef00000) (1MB) mem07: type=11, attr=0x8000000000000001, range=[0x00000000ff000000-0x0000000100000000) (16MB) mem08: type=7, attr=0x8, range=[0x0000000100000000-0x0000000400000000) (12288MB) mem09: type=7, attr=0x8, range=[0x0000004040000000-0x0000004100000000) (3072MB) mem10: type=7, attr=0x8, range=[0x0000078400000000-0x00000787fa96a000) (16297MB) mem11: type=2, attr=0x8, range=[0x00000787fa96a000-0x00000787fada0000) (4MB) mem12: type=7, attr=0x8, range=[0x00000787fada0000-0x00000787fada1000) (0MB) mem13: type=1, attr=0x8, range=[0x00000787fada1000-0x00000787fae00000) (0MB) mem14: type=7, attr=0x8, range=[0x00000787fae00000-0x00000787fb39e000) (5MB) mem15: type=4, attr=0x8, range=[0x00000787fb39e000-0x00000787fb3a0000) (0MB) mem16: type=7, attr=0x8, range=[0x00000787fb3a0000-0x00000787fb3a2000) (0MB) mem17: type=4, attr=0x8, range=[0x00000787fb3a2000-0x00000787fb3a8000) (0MB) mem18: type=7, attr=0x8, range=[0x00000787fb3a8000-0x00000787fb3aa000) (0MB) mem19: type=4, attr=0x8, range=[0x00000787fb3aa000-0x00000787fb800000) (4MB) mem20: type=7, attr=0x8, range=[0x00000787fb800000-0x00000787fbb3c000) (3MB) mem21: type=3, attr=0x8, range=[0x00000787fbb3c000-0x00000787fbba2000) (0MB) mem22: type=5, attr=0x8000000000000008, range=[0x00000787fbba2000-0x00000787fbc80000) (0MB) mem23: type=7, attr=0x8, range=[0x00000787fbc80000-0x00000787fbde8000) (1MB) mem24: type=6, attr=0x8000000000000008, range=[0x00000787fbde8000-0x00000787fbe00000) (0MB) mem25: type=13, attr=0x8000000000000008, range=[0x00000787fc000000-0x00000787fc400000) (4MB) mem26: type=5, attr=0x8000000000000008, range=[0x00000787fc400000-0x00000787fd640000) (18MB) mem27: type=0, attr=0x8000000000000008, range=[0x00000787fd640000-0x00000787ffc20000) (37MB) mem28: type=5, attr=0x8000000000000008, range=[0x00000787ffc20000-0x0000078800000000) (3MB) mem29: type=11, attr=0x3, range=[0x00000f0100000000-0x00000f017ee00000) (2030MB) mem30: type=11, attr=0x3, range=[0x00000f0180000000-0x00000f01fee00000) (2030MB) mem31: type=11, attr=0x3, range=[0x00000f1100000000-0x00000f117ee00000) (2030MB) mem32: type=11, attr=0x3, range=[0x00000f2100000000-0x00000f217ee00000) (2030MB) mem33: type=11, attr=0x3, range=[0x00000f3100000000-0x00000f317ee00000) (2030MB) mem34: type=11, attr=0x3, range=[0x00000f4100000000-0x00000f417ee00000) (2030MB) mem35: type=11, attr=0x3, range=[0x00000f5100000000-0x00000f517ee00000) (2030MB) mem36: type=11, attr=0x3, range=[0x00000f6100000000-0x00000f617ee00000) (2030MB) mem37: type=11, attr=0x3, range=[0x00000f7100000000-0x00000f717ee00000) (2030MB) mem38: type=12, attr=0x8000000000000001, range=[0x00000f8100000000-0x00000f8104000000) (64MB) mem39: type=11, attr=0x1, range=[0x00000f8110000000-0x00000f8110001000) (0MB) mem40: type=11, attr=0x1, range=[0x00000f8110002000-0x00000f8110003000) (0MB) mem41: type=11, attr=0x1, range=[0x00000f8110004000-0x00000f8110005000) (0MB) mem42: type=11, attr=0x1, range=[0x00000f8110008000-0x00000f8110009000) (0MB) mem43: type=11, attr=0x1, range=[0x00000f811000c000-0x00000f811000d000) (0MB) mem44: type=11, attr=0x1, range=[0x00000f8110010000-0x00000f8110011000) (0MB) mem45: type=11, attr=0x1, range=[0x00000f8110014000-0x00000f8110015000) (0MB) mem46: type=11, attr=0x1, range=[0x00000f8110018000-0x00000f8110019000) (0MB) mem47: type=11, attr=0x1, range=[0x00000f811001c000-0x00000f811001d000) (0MB) mem48: type=11, attr=0x1, range=[0x00000f8120000000-0x00000f8120008000) (0MB) mem49: type=11, attr=0x8000000000000001, range=[0x00000ffc00000000-0x00000ffc70800000) (1800MB) mem50: type=11, attr=0x1, range=[0x00000ffc70800000-0x00000ffdf0800000) (6144MB) mem51: type=11, attr=0x8000000000000001, range=[0x00000ffff6000000-0x00000ffff6800000) (8MB) mem52: type=11, attr=0x8000000000000001, range=[0x00000ffffc000000-0x00000ffffc800000) (8MB) Signed-off-by: Bernhard Walle <bwalle@xxxxxxx> --- arch/ia64/kernel/efi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) Index: linux-2.6.16-SLES10_SP1_BRANCH/arch/ia64/kernel/efi.c =================================================================== --- linux-2.6.16-SLES10_SP1_BRANCH.orig/arch/ia64/kernel/efi.c +++ linux-2.6.16-SLES10_SP1_BRANCH/arch/ia64/kernel/efi.c @@ -959,8 +959,8 @@ efi_memmap_init(unsigned long *s, unsign #ifdef CONFIG_CRASH_DUMP /* saved_max_pfn should ignore max_addr= command line arg */ - if (saved_max_pfn < (ae >> PAGE_SHIFT)) - saved_max_pfn = (ae >> PAGE_SHIFT); + if (saved_max_pfn < (efi_md_end(md) >> PAGE_SHIFT)) + saved_max_pfn = (efi_md_end(md) >> PAGE_SHIFT); #endif /* keep within max_addr= and min_addr= command line arg */ as = max(as, min_addr); - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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