Empty session files

As reported in bug #4360, I'm having problems where PHP4 RC1/2 is writing empty session files. The session files show up, but are always 0 bytes. I made the problem go away by commenting out my Apache <VirtualHost> sections. I'm using IP-based hosting. Then, I started removing the comments from one vhost at a time, and eventually nailed it down to the log paramaters within the virtual hosts. I'm piping log output to an external program, Cronolog (http://www.ford-mason.co.uk/resources/cronolog/), like so: TransferLog "|/usr/local/sbin/cronolog /home/domain/logs/access_log-%m-%Y" I do something like this for each virtual host, with an additional similar CustomLog also piping to Cronolog. PHP4 sessions stop working when I have more than two TransferLog or CustomLog's piping their ouput to Cronolog! I'm not sure if the problem is dependent upon piping the logs to Cronolog, or just having any kind of logging in the VirtualHost section. I'll check this out tomorrow. The machine is running FreeBSD 4.0, Apache 1.3.12+SSL, PHP4.0 RC2. Nothing else appears to be broken by the aforementioned log paramaters. Am I crazy or what the heck is happening here? Incidently, bug #2765 is nearly identical to my bug report, and also mentions problems occur only when x number of <VirtualHost> entries appear in his apache configuration file. Thanks. Tom Duffey