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linux coredumpÅäÖÃÓëµ÷ÊÔ


linux coredumpÅäÖÃÓëµ÷ÊÔ
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2009.02.09 17:11¡¡(¹²ÓÐ0
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linux coredumpÅäÖÃÓëµ÷ÊÔ
       
       
       
       
       
       
Linux
Core Dump ÅäÖÃÓëµ÷ÊÔ
1.coreÎļþµÄÉú³É¿ª¹ØºÍ´óСÏÞÖÆ
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1£©Ê¹ÓÃulimit
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2£©
ʹÓÃulimit
-cfilesizeÃüÁ¿ÉÒÔÏÞÖÆcoreÎļþµÄ´óС£¨filesizeµÄµ¥Î»Îªkbyte£©¡£Èôulimit
-cunlimited£¬Ôò±íʾcoreÎļþµÄ´óС²»ÊÜÏÞÖÆ¡£Èç¹ûÉú³ÉµÄÐÅÏ¢³¬¹ý´Ë´óС£¬½«»á±»²Ã¼ô£¬×îÖÕÉú³ÉÒ»¸ö²»ÍêÕûµÄcoreÎļþ¡£ÔÚµ÷ÊÔ´Ë
coreÎļþµÄʱºò£¬gdb»áÌáʾ´íÎó¡£
2.coreÎļþµÄÃû³ÆºÍÉú³É·¾¶
----------------------------
ÈôϵͳÉú³ÉµÄcoreÎļþ²»´øÆäËüÈκÎÀ©Õ¹Ãû³Æ£¬ÔòÈ«²¿ÃüÃûΪcore¡£ÐµÄcoreÎļþÉú³É½«¸²¸ÇÔ­À´µÄcoreÎļþ¡£
1£©/proc/sys/kernel/core_uses_pid¿ÉÒÔ¿ØÖÆcoreÎļþµÄÎļþÃûÖÐÊÇ·ñÌí¼Ópid×÷ΪÀ©Õ¹¡£ÎļþÄÚÈÝΪ1£¬±íʾÌí¼Ópid×÷ΪÀ©Õ¹Ãû£¬Éú³ÉµÄcoreÎļþ¸ñʽΪcore.xxxx£»Îª0Ôò±íʾÉú³ÉµÄcoreÎļþͬһÃüÃûΪcore¡£
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echo
"1" >
/proc/sys/kernel/core_uses_pid
2£©proc/sys/kernel/core_pattern¿ÉÒÔ¿ØÖÆcoreÎļþ±£´æλÖúÍÎļþÃû¸ñʽ¡£
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echo
"/corefile/core-%e-%p-%t" >
core_pattern£¬¿ÉÒÔ½«coreÎļþͳһÉú³Éµ½/corefileĿ¼Ï£¬²úÉúµÄÎļþÃûΪcore-ÃüÁîÃû-pid-ʱ¼ä´Á
ÒÔÏÂÊDzÎÊýÁбí:
   
%p - insert pid into filename Ìí¼Ópid
   
%u - insert current uid into filename Ìí¼Óµ±Ç°uid
   
%g - insert current gid into filename Ìí¼Óµ±Ç°gid
   
%s - insert signal that caused the coredump into the filename
Ìí¼Óµ¼Ö²úÉúcoreµÄÐźÅ
   
%t - insert UNIX time that the coredump occurred into filename
Ìí¼ÓcoreÎļþÉú³ÉʱµÄunixʱ¼ä
   
%h - insert hostname where the coredump happened into filename
Ìí¼ÓÖ÷»úÃû
   
%e - insert coredumping executable name into f


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