PHP,APACHE2- child pid exit signal Segmentation fault

Hi my problem is in PHP5 .Please help me [Fri Nov 23 18:52:28 2012] [notice] child pid 17869 exit signal Segmentation fault (11) [Fri Nov 23 18:52:37 2012] [notice] child pid 18307 exit signal Segmentation fault (11) [Fri Nov 23 18:52:47 2012] [notice] child pid 20104 exit signal Segmentation fault (11) [Fri Nov 23 18:53:11 2012] [notice] child pid 20979 exit signal Segmentation fault (11) [Fri Nov 23 18:53:13 2012] [notice] child pid 20980 exit signal Segmentation fault (11) [Fri Nov 23 18:53:17 2012] [notice] child pid 20059 exit signal Segmentation fault (11) [Fri Nov 23 18:53:24 2012] [notice] child pid 13445 exit signal Segmentation fault (11) [Fri Nov 23 18:53:32 2012] [notice] child pid 21073 exit signal Segmentation fault (11) [Fri Nov 23 18:53:42 2012] [notice] child pid 20273 exit signal Segmentation fault (11) [Fri Nov 23 18:53:42 2012] [notice] child pid 21490 exit signal Segmentation fault (11) [Fri Nov 23 18:53:43 2012] [notice] child pid 20105 exit signal Segmentation fault (11) [Fri Nov 23 18:53:45 2012] [notice] child pid 21537 exit signal Segmentation fault (11) [Fri Nov 23 18:53:49 2012] [notice] child pid 20845 exit signal Segmentation fault (11) [Fri Nov 23 18:53:55 2012] [notice] child pid 21686 exit signal Segmentation fault (11) [Fri Nov 23 18:54:04 2012] [notice] child pid 17361 exit signal Segmentation fault (11) [Fri Nov 23 18:54:14 2012] [notice] child pid 21685 exit signal Segmentation fault (11) [Fri Nov 23 18:54:33 2012] [notice] child pid 13488 exit signal Segmentation fault (11) [Fri Nov 23 18:54:39 2012] [notice] child pid 3641 exit signal Segmentation fault (11) [Fri Nov 23 18:54:42 2012] [notice] child pid 22623 exit signal Segmentation fault (11) [Fri Nov 23 18:54:45 2012] [notice] child pid 17506 exit signal Segmentation fault (11)