I have spent a good while searching and haven't been able to fix this problem. I had a working chroot of Debian squeeze on my arm machine. I followed the guide to upgrading from squeeze to wheezy I required some functionality which wasn't available in squeeze. The upgrade was pretty straightforward. After the upgrade I can't connect to any Apache sites. I have turned logging to debug and My log is full of the following.
[Wed Jan 23 23:23:34 2013] [notice] Digest: generating secret for digest authentication ...
[Wed Jan 23 23:23:34 2013] [notice] Digest: done
[Wed Jan 23 23:23:35 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:35 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:35 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:35 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:35 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:35 2013] [notice] Apache/2.2.22 (Debian) PHP/5.4.4-11 configured -- resuming normal operations
[Wed Jan 23 23:23:35 2013] [info] Server built: Oct 31 2012 00:17:58
[Wed Jan 23 23:23:35 2013] [debug] prefork.c(1023): AcceptMutex: sysvsem (default: sysvsem)
[Wed Jan 23 23:23:36 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:37 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:37 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:38 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:38 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:38 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:38 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:39 2013] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 8 children, there are 3 idle,$
[Wed Jan 23 23:23:39 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:39 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:39 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:39 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:39 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:39 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
[Wed Jan 23 23:23:39 2013] [error] (38)Function not implemented: apr_socket_accept: (client socket)
Ideas please?