crashman手册_man手册离线安装资源-CSDN文库

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crash man手册（105个子文件）

doit 773B

wrapper.end 811B

set.html.bak.htm 6KB

pixel.htm 584B

kmem.html 22KB

ps.html 20KB

bt.html 14KB

mod.html 11KB

struct.html 10KB

vm.html 10KB

list.html 9KB

dis.html 8KB

extend.html 8KB

sig.html 8KB

net.html 8KB

dev.html 8KB

kernel_rebuild.html 7KB

rd.html 7KB

files.html 7KB

sym.html 6KB

set.html 6KB

union.html 6KB

vtop.html 6KB

foreach.html 5KB

search.html 5KB

sys.html 5KB

timer.html 5KB

irq.html 5KB

mount.html 5KB

input.html 4KB

log.html 4KB

alias.html 4KB

task.html 4KB

whatis.html 4KB

p.html 4KB

wr.html 3KB

mach.html 3KB

repeat.html 3KB

waitq.html 3KB

ascii.html 3KB

output.html 3KB

gdb.html 3KB

fuser.html 3KB

runq.html 3KB

pointer.html 3KB

pte.html 2KB

help.html 2KB

ptov.html 2KB

swap.html 2KB

btop.html 2KB

ptob.html 2KB

共 105 条

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head> <meta http-equiv="content-type" content="text/html; charset=UTF-8">  </head><body><table border="0" cellpadding="0" cellspacing="0" width="100%"> <tbody><tr> <td colspan="3"><hr class="gray" noshade="noshade"></td> </tr> <tr> <td colspan="3"><img src="kmem_files/pixel.htm" alt="" border="0" height="10" width="1"></td> </tr> </tbody></table> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tbody><tr> <td width="100%">  <h3>crash utility help page: <tt><b> kmem</b></tt></h3> <table bgcolor="#e0e0e0" border="0" width="100%"> <tbody><tr> <td> <pre> NAME kmem - kernel memory SYNOPSIS kmem [-f|-F|-p|-c|-C|-i|-s|-S|-v|-V|-n|-z] [-[l|L][a|i]] [slab] [[-P] address] DESCRIPTION This command displays information about the use of kernel memory. -f displays the contents of the system free memory headers. also verifies that the page count equals nr_free_pages. -F same as -f, but also dumps all pages linked to that header. -p displays basic information about each page in the system mem_map[] array. -c walks through the page_hash_table and verifies page_cache_size. -C same as -c, but also dumps all pages in the page_hash_table. -i displays general memory usage information -s displays basic kmalloc() slab data. -S displays all kmalloc() slab data, including all slab objects, and whether each object is in use or is free. If CONFIG_SLUB, slab data for each per-cpu slab is displayed, along with the address of each kmem_cache_node, its count of full and partial slabs, and a list of all tracked slabs. -v displays the vmlist entries. -V displays the kernel vm_stat table if it exists, the cumulative page_states counter values if they exist, and/or the cumulative vm_event_states counter values if they exist. -n display memory node data (if supported). -z displays per-zone memory statistics. -la walks through the active_list and verifies nr_active_pages. -li walks through the inactive_list and verifies nr_inactive_pages. -La same as -la, but also dumps each page in the active_list. -Li same as -li, but also dumps each page in the inactive_list. slab when used with -s or -S, limits the command to only the slab cache of name "slab". If the slab argument is "list", then all slab cache names and addresses are listed. -P declares that the following address argument is a physical address. address when used without any flag, the address can be a kernel virtual, or physical address; a search is made through the symbol table, the kmalloc() slab subsystem, the free list, the page_hash_table, the vmalloc() vmlist subsystem, the current set of task_structs and kernel stacks, and the mem_map array. If found in any of those areas, the information will be dumped in the same manner as if the location-specific flags were used; if contained within a curent task_struct or kernel stack, that task's context will be displayed. address when used with -s or -S, searches the kmalloc() slab subsystem for the slab containing of this virtual address, showing whether it is in use or free. address when used with -f, the address can be either a page pointer, a physical address, or a kernel virtual address; the free_area header containing the page (if any) is displayed. address when used with -p, the address can be either a page pointer, a physical address, or a kernel virtual address; its basic mem_map page information is displayed. address when used with -c, the address must be a page pointer address; the page_hash_table entry containing the page is displayed. address when used with -l, the address must be a page pointer address; the page address is displayed if it is contained with the list. address when used with -v, the address can be a mapped kernel virtual address or physical address; the vmlist containing the address is displayed. All address arguments above must be expressed in hexadecimal format. EXAMPLES Display memory usage information: crash> kmem -i PAGES TOTAL PERCENTAGE TOTAL MEM 63602 248.4 MB ---- FREE 993 3.9 MB 1% of TOTAL MEM USED 62609 244.6 MB 98% of TOTAL MEM SHARED 34035 132.9 MB 53% of TOTAL MEM BUFFERS 10928 42.7 MB 17% of TOTAL MEM CACHED 35249 137.7 MB 55% of TOTAL MEM SLAB 2823 11 MB 4% of TOTAL MEM TOTAL HIGH 0 0 0% of TOTAL MEM FREE HIGH 0 0 0% of TOTAL HIGH TOTAL LOW 63602 248.4 MB 100% of TOTAL MEM FREE LOW 993 3.9 MB 1% of TOTAL LOW TOTAL SWAP 129792 507 MB ---- SWAP USED 14727 57.5 MB 11% of TOTAL SWAP SWAP FREE 115065 449.5 MB 88% of TOTAL SWAP ZONE NAME FREE ACTIVE INACTIVE_DIRTY INACTIVE_CLEAN MIN/LOW/HIGH 0 DMA 240 1166 7 161 128/256/384 1 Normal 753 17009 27834 0 255/510/765 2 HighMem 0 0 0 0 0/0/0 Display and verify free memory data: crash> kmem -f NODE 0 ZONE NAME SIZE FREE MEM_MAP START_PADDR START_MAPNR 0 DMA 4096 3372 c4000040 0 0 AREA SIZE FREE_AREA_STRUCT BLOCKS PAGES 0 4k c02eb004 2 2 1 8k c02eb010 3 6 2 16k c02eb01c 5 20 3 32k c02eb028 4 32 4 64k c02eb034 5 80 5 128k c02eb040 3 96 6 256k c02eb04c 3 192 7 512k c02eb058 1 128 8 1024k c02eb064 1 256 9 2048k c02eb070 5 2560 ZONE NAME SIZE FREE MEM_MAP START_PADDR START_MAPNR 1 Normal 225280 202269 c4044040 1000000 4096 AREA SIZE FREE_AREA_STRUCT BLOCKS PAGES 0 4k c02eb0b8 1 1 1 8k c02eb0c4 2 4 2 16k c02eb0d0 0 0 3 32k c02eb0dc 1 8 4 64k c02eb0e8 1 16 5 128k c02eb0f4 0 0 6 256k c02eb100 0 0 7 512k c02eb10c 0 0 8 1024k c02eb118 0 0 9 2048k c02eb124 395 202240 ZONE NAME SIZE FREE MEM_MAP START_PADDR START_MAPNR 2 HighMem 819200 748686 c4ee0040 38000000 229376 AREA SIZE FREE_AREA_STRUCT BLOCKS PAGES 0 4k c02eb16c 10 10 1 8k c02eb178 2 4 2 16k

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