Comment 2 for bug 1371935

Hi,
I found various statements like this in the logs:

The Apache error log may have more information.
apache2_reload: Your configuration is broken. Not reloading Apache 2

That indicates some kind of custom config might be in place that isn't compatible with the new release.
Please check your logs as indicated.
Often the README files provided by the package help on common on-upgrade-changes that one has to be aware of.

Further down in other attached logs I found:
[Sat Sep 20 15:14:57 2014] [notice] Apache/2.2.22 (Ubuntu) DAV/2 mod_ssl/2.2.22 OpenSSL/1.0.1 mod_fcgid/2.3.6 mod_perl/2.0.5 Perl/v5.14.2 configured -- resuming normal operations
Failed loading /usr/lib/php5/20090626/xcache.so: /usr/lib/php5/20090626/xcache.so: cannot open shared object file: No such file or directory
[Sat Sep 20 15:16:00 2014] [notice] caught SIGTERM, shutting down

So it might be a php5-xcache setup issue on your system.
I checked what I got on a 12.04 -> 14.04 upgrade and I ended up with
php5-xcache 3.1.0-2
/usr/lib/php5/20121212/xcache.so

The one your log is referring to is still the precise version.

I hope this might help you to find your setup issue, it is hard to do more remotely.
Please come back and reopen the bug if it still applies - in that case please add all the info you found while trying to resolve the suggested configuration issue.