Apache error_log 出現了 child pid 22545 exit signal Segmentation fault (11)

狀況

1。網站慢
2。ssh 連線慢

top

error_log
有一個 ip 一直在對主機亂 try

[Tue Jun  3 00:02:02 2008] [error] [client 124.92.203.78] File does not exist: /var/www/html/ojs/index.php/ijbi/article/viewPDFInterstitial/118/<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br
/<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br />
[Tue Jun  3 00:02:02 2008] [error] [client 124.92.203.78] File does not exist: /var/www/html/ojs/index.php/ijbi/article/viewPDFInterstitial/118/<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br
/<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br /<br />

還有

Integer overflow in memory_limit check detected

再來

[Tue Jun  3 00:09:42 2008] [notice] child pid 22545 exit signal Segmentation fault (11)
[Tue Jun  3 00:10:20 2008] [notice] child pid 6874 exit signal Segmentation fault (11)
[Tue Jun  3 00:10:21 2008] [notice] child pid 6820 exit signal Segmentation fault (11)
[Tue Jun  3 00:10:28 2008] [notice] child pid 5722 exit signal Segmentation fault (11)

以上幾點沒有記錄可以的證明有直接相關性

以上的第三及第四，Google 了一下並沒有明白直接的解決辦法

下次或許可以使用 strace
http://blog.teatime.com.tw/1/post/232
http://www.eygle.com/archives/2005/08/ouredhat_ad3eie.html
http://blog.gslin.org/archives/2006/10/11/790/
http://cutebunny.blog.51cto.com/301216/57856