Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

linux ÄÚ´æ³õʼ»¯

linux³õʼ»¯Ê±°ÑÖ§³ÖµÄÎïÀíÄÚ´æ¶¼Ó³Éäµ½page tableÖУ¬Ö®ºó½ø³ÌÐèÒªÄÚ´æÊ±£¬Ò²ÊÇÓ³Éäµ½Õâ¸öÎïÀíÄÚ´æÖУ¬Èç´Ë˵À´£¬linux³õʼ»¯Ê±´´½¨µÄpage tableºÍ½ø³ÌÖд´½¨µÄpage tableÖ¸Ïòͬһ¿éÎïÀíÒ³ÃæÂð£¿ÕâÑù×öµÄÄ¿µÄÊÇʲô£¿ лл~
ÿ¸öProcess¶¼ÓÐ×Ô¼ºµÄpage_table£¬0xc0000000ÒÔÉϵĵØÖ·¸úÄں˵ÄPage tableÊÇÒ»Öµģ¬ÊÇÄں˿ռäµÄµØÖ·¡£

  Â¥ÉÏÊǶԵġ£

Êǵģ¬Â¥ÉÏ˵µÄû´í£¬ÎÒµÄÎÊÌâÊÇÄں˳õʼ»¯Ê±ÎªºÎÒª°ÑËùÓеÄÎïÀíÄÚ´æ¶¼Ó³Éäµ½swapper_pg_dirÖÐ? ¶øÄÚºËÖ»Óõ½ºÜÉÙµÄÄڴ棬±ÈÈç8M. Èç¹ûÖ»Ó³Éä8MµÄÄڴ棬ÒÔºó´´½¨½ø³Ìʱ¸ù¾ÝÐèÒªÔÙÈ¥Ó³Éä¡£ÕâÑù»áÓÐʲôÎÊÌ⣬лл~

ÄÚºËÓõ½µÄÄÚ´æ²»Ö»8M¡£
LzÊÇ¿´ÁËÉîÈëÀí½âLinuxÄں˰ɣ¬ÄÇÖ»ÊÇ˵Ã÷Äں˵Ť×÷·½Ê½¡£µÚÒ»´ÎÓ³ÉäµÄ8MÖ»ÊÇΪÁËÔÚMMU enableµÄǰºó¶¼ÄÜÕýÈ·µÄʹÓÃÎïÀíµØÖ·ºÍÐéÄâµØÖ·¡£

ÁíÍ⣬Äں˲¢Ã»ÓаÑËùÓеÄÄÚ´æ¶¼Ó³Éäµ½page tableÀïÃæ¡£page tableµÄÈ·ÊǶ¯Ì¬µØ±»Ð޸ĵÄÀ´Ó³Éä¸ü¶à»ò¸üÉÙµÄÄÚ´æ¡££¨32룩Äں˳õʼ»¯µÄʱºòÖ»³õʼ»¯ÁË0xc0000000ÒÔÉϵĿռ䣨²»°üÀ¨¶¯Ì¬Ó³ÉäµÄ²¿·Ö£©¡£Õâ¶ÎÐéÄâµØÖ·Ö»»áÓÉÄÚºËʹÓ㨵ÄÈ·£¬Èç¹ûÄÚ´æ²»¶à£¬ÄÇôÕâ¶ÎµØÖ·ÒѾ­¿ÉÒÔ°ÑÎïÀíÄÚ´æÈ«²¿Ó³ÉäÁË£¬µ«ÕâÊÇÄÚºËʹÓõĵØÖ·¿Õ¼ä£¬Óû§¿Õ¼äÒ»°ãµÄ³ÌÐò²»ÄÜʹÓã©¡£

0xc0000000ÒÔϵĵØÖ·ÊÇÓû§¿Õ¼ä¿ÉÖ±½ÓʹÓõÄÐéÄâµØÖ·¿Õ¼ä¡£Õâ¶ÎÐéÄâµØÖ·µ½ÎïÀíµØÖ·µÄÓ³ÉäµÄÈ·ÊǶ¯Ì¬½øÐе쬵±½ø³ÌÉêÇë¸ú¶àÄÚ´æÊ±£¬ÓÉÄں˶¯Ì¬µØÐ޸Ľø³ÌµÄpage tableÀ´Ó³Éä¡£

Äں˵ÄÐéÄâµØÖ·¸úÓû§¿Õ¼äµÄÐéÄâµØÖ·ÓпÉÄÜÓ³Éäµ½ÏàͬµÄÄÚ´æ¡£Èç¹ûÕæµÄҪʹÓã¬Ä³Ð©ÄÚ´æÒ³Ãæ¿ÉÄܱ»swap³öÈ¥¡£

lzËÆºõ°ÑÄں˵ØÖ·¿Õ¼äºÍ½ø³ÌµÄµØÖ·¿Õ¼ä»ìÔÚÒ»ÆðÀí½âÁË¡£

ѧϰ£¡

»¹ÊÇÓеãÔΣ¬²»¹ýû¹ØÏµ£¬ÎÒÔÙ¼ÌÐøÑо¿£¬Ó


Ïà¹ØÎÊ´ð£º

linux»·¾³ÏÂgethostbynameº¯ÊýÎÊÌâ - C/C++ / CÓïÑÔ

дÁ˸ö²âÊÔ³ÌÐòÈçÏÂ
   
  struct hostent *hp; 
char AlarmDevIP[20];  
  int x2;

hp = gethostbyname("www.google.com");
if (hp)
{ ......

Linux Ŀ¼ÎÊÌâ

LinuxÐÂÊÖ£¬Çë´ó¸ç´ó½ã²»Òª¼ûЦ¡£

ÎÒÓÃrootÓû§µÇ¼µ½Linuxϵͳ¡£ÔÚ¸ùĿ¼ÏÂÃæ½¨ÁËĿ¼dir1£¬ºóÓÃÃüÁîcd /dir1½øÈëµ½dir1Ŀ¼Ï£¬È»ºóÔÙÓÃmkdir dir2½¨Á¢ÁËĿ¼dir2 £¬ÔÙºóÀ´ÓÃÃüÁîcd /dir2ÊÇ£¬ÌáʾΪ£º-bush ......

linux ϰ²×°oracle

ÇëÎÊË­ÓÐÔÚlinuxϰ²×°oracleµÄÖ¸µ¼Îĵµ×îºÃÊÇ11gµÄ£¬°²×°Á˺ü¸´Î¶¼Ê§°ÜÁË£¬ÓôÃÆ¡­¡­

10gµÄÎĵµ£¬¹©²Î¿¼.

linuxƽ̨ÏÂoracleÊý¾Ý¿â°²×°
http://blog.csdn.net/tianlesoftware/archive/2009/10/24/47 ......

linux½Ì³Ì - Linux/UnixÉçÇø / ϵͳά»¤ÓëʹÓÃÇø

ÓÐʲôºÃµÄLinux½Ì³ÌÂð£¿
СµÜл¹ý~
[ÎÊÌâµãÊý:0·Ö]

google

¾Ý˵Äñ¸çµÄ˽·¿²Ë²»´í¡£

Äñ¸çµÄLinux˽·¿²Ë
¸ü¶àµÄÔÙÕâÉÏÃæÈ¥ËÑË÷һϺÜLIUNXÊé¼®»¹²»´í

ÒýÓÃ
google
Õý½â

Äñ¸çµÄLinux˽·¿²Ë  ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ