What the heck this means?
My error log is full of it.

[Mon Sep 22 21:16:56 2003] [notice] child pid 21026 exit signal Segmentation fault (11)
[Mon Sep 22 21:18:22 2003] [notice] child pid 18364 exit signal Segmentation fault (11)
[Mon Sep 22 21:19:26 2003] [notice] child pid 18366 exit signal Segmentation fault (11)
[Mon Sep 22 21:21:59 2003] [notice] child pid 21019 exit signal Segmentation fault (11)
[Mon Sep 22 21:22:16 2003] [notice] child pid 21020 exit signal Segmentation fault (11)
[Mon Sep 22 21:24:56 2003] [notice] child pid 21550 exit signal Segmentation fault (11)
[Mon Sep 22 21:29:25 2003] [notice] child pid 21551 exit signal Segmentation fault (11)
[Mon Sep 22 21:34:18 2003] [notice] child pid 21682 exit signal Segmentation fault (11)
[Mon Sep 22 21:43:27 2003] [notice] child pid 21884 exit signal Segmentation fault (11)
[Mon Sep 22 21:44:08 2003] [notice] child pid 20046 exit signal Segmentation fault (11)