crash> kmem -n
NODE SIZE PGLIST_DATA BOOTMEM_DATA NODE_ZONES
0 100925439 ffff88e03ffc1000 ---- ffff88e03ffc1000
ffff88e03ffc5000
ffff88e03ffc9000
ffff88e03ffcd000
ffff88e03ffd1000
MEM_MAP START_PADDR START_MAPNR
ffffea0000000040 1000 1
ZONE NAME SIZE MEM_MAP START_PADDR START_MAPNR
0 DMA 4095 ffffea0000000040 1000 1
1 DMA32 1044480 ffffea0000040000 1000000 4096
2 Normal 99876864 ffffea0004000000 100000000 1048576
3 Movable 0 0 0 0
4 Device 0 0 0 0
-------------------------------------------------------------------
NODE SIZE PGLIST_DATA BOOTMEM_DATA NODE_ZONES
1 100663296 ffff89403fdbe000 ---- ffff89403fdbe000
ffff89403fdc2000
ffff89403fdc6000
ffff89403fdca000
ffff89403fdce000
MEM_MAP START_PADDR START_MAPNR
ffffea0181000000 6040000000 100925440
ZONE NAME SIZE MEM_MAP START_PADDR START_MAPNR
0 DMA 0 0 0 0
1 DMA32 0 0 0 0
2 Normal 100663296 ffffea0181000000 6040000000 100925440
3 Movable 0 0 0 0
4 Device 0 0 0 0
-------------------------------------------------------------------
NR SECTION CODED_MEM_MAP MEM_MAP STATE PFN
0 ffff88e03ffc0000 ffffea0000000000 ffffea0000000000 PMOE 0
1 ffff88e03ffc0010 ffffea0000000000 ffffea0000200000 PMOE 32768
2 ffff88e03ffc0020 ffffea0000000000 ffffea0000400000 PMOE 65536
...
6148 ffff89403fdae040 ffffea0000000000 ffffea0300800000 PMOE 201457664
6149 ffff89403fdae050 ffffea0000000000 ffffea0300a00000 PMOE 201490432
6150 ffff89403fdae060 ffffea0000000000 ffffea0300c00000 PMOE 201523200
6151 ffff89403fdae070 ffffea0000000000 ffffea0300e00000 PMOE 201555968
MEM_BLOCK NAME PHYSICAL RANGE NODE STATE START_SECTION_NO
ffff88deb1c0d800 memory0 0 - 3fffffff 0 ONLINE 0
ffff88deb1c0c000 memory1 40000000 - 7fffffff 0 ONLINE 8
ffff88deb1c09800 memory4 100000000 - 13fffffff 0 ONLINE 32
ffff88deb1c0d000 memory5 140000000 - 17fffffff 0 ONLINE 40
ffff88deb1c0a000 memory6 180000000 - 1bfffffff 0 ONLINE 48
ffff88deb1c0b000 memory7 1c0000000 - 1ffffffff 0 ONLINE 56
ffff88deb1c0f800 memory8 200000000 - 23fffffff 0 ONLINE 64
ffff88deb1c0e800 memory9 240000000 - 27fffffff 0 ONLINE 72
...
上面SECTION的STATE信息支持如下如下几个标识符：
"P": SECTION_MARKED_PRESENT
"M": SECTION_HAS_MEM_MAP
"O": SECTION_IS_ONLINE
"E": SECTION_IS_EARLY
"D": SECTION_TAINT_ZONE_DEVICE