Child PID XXXX Exit Signal Segmentation Fault after Upgrade to 10.1.1

[German Wider]

Hello!
After upgrading to 10.1.1. our system has gone a lot more unstable. I.e. very frequent crashes and memory issues.
Trying to get to the bottom of this I fould these notices in /var/log/httpd/error_log
They started the minute I finished the Upgrade to 10.1.1 and persist since. And it goes on minute by minute like this.


[Thu Feb 10 18:44:22 2011] [notice] child pid 4854 exit signal Segmentation fault (11)
[Thu Feb 10 18:44:42 2011] [notice] child pid 3248 exit signal Segmentation fault (11)
[Thu Feb 10 18:45:33 2011] [notice] child pid 4620 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:20 2011] [notice] child pid 5603 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:21 2011] [notice] child pid 4590 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:22 2011] [notice] child pid 2809 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:23 2011] [notice] child pid 3907 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:24 2011] [notice] child pid 5602 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:25 2011] [notice] child pid 5595 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:26 2011] [notice] child pid 25862 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:27 2011] [notice] child pid 5598 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:28 2011] [notice] child pid 5597 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:29 2011] [notice] child pid 5596 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:33 2011] [notice] child pid 4641 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:34 2011] [notice] child pid 4738 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:35 2011] [notice] child pid 4855 exit signal Segmentation fault (11)
[Thu Feb 10 18:46:36 2011] [notice] child pid 2584 exit signal Segmentation fault (11)
[Thu Feb 10 18:47:50 2011] [notice] child pid 5600 exit signal Segmentation fault (11)
[Thu Feb 10 18:49:34 2011] [notice] child pid 5590 exit signal Segmentation fault (11)
[Thu Feb 10 18:49:37 2011] [notice] child pid 4592 exit signal Segmentation fault (11)
[Thu Feb 10 18:51:02 2011] [notice] child pid 4643 exit signal Segmentation fault (11)
[Thu Feb 10 18:51:15 2011] [notice] child pid 5585 exit signal Segmentation fault (11)
[Thu Feb 10 18:54:14 2011] [notice] child pid 5601 exit signal Segmentation fault (11)
[Thu Feb 10 18:55:23 2011] [notice] child pid 5072 exit signal Segmentation fault (11)
[Thu Feb 10 18:55:24 2011] [notice] child pid 5591 exit signal Segmentation fault (11)
[Thu Feb 10 18:55:26 2011] [notice] child pid 3227 exit signal Segmentation fault (11)
[Thu Feb 10 19:00:44 2011] [notice] child pid 3910 exit signal Segmentation fault (11)
[Thu Feb 10 19:01:02 2011] [notice] child pid 6472 exit signal Segmentation fault (11)
[Thu Feb 10 19:02:02 2011] [notice] child pid 8488 exit signal Segmentation fault (11)
[Thu Feb 10 19:08:39 2011] [notice] child pid 6097 exit signal Segmentation fault (11)
[Thu Feb 10 19:10:18 2011] [notice] child pid 7621 exit signal Segmentation fault (11)

Could anyone suggest a fix for this or a further pointer on finding out which components are causing the problem and
could Parallels please come up with a fix for this?
Thank you!