custombuild 2 with fastcgi

[mangelot]

Noticed many errors in apache error log.

Broken pipe: [client xx.xx.xx.xx:43353] mod_fcgid: ap_pass_brigade failed in handle_request_ipc function

I know its related to fcgid.conf (php - fastcgi default)

<IfModule mod_fcgid.c>
FcgidIPCDir /var/run/fcgidsock
SharememPath /var/run/fcgid_shm
FcgidMinProcessesPerClass 0
FcgidMaxProcessesPerClass 8
FcgidMaxProcesses 300
FcgidProcessLifeTime 120
FcgidIdleScanInterval 30
FcgidIdleTimeout 60
FcgidBusyTimeout 3600
FcgidIOTimeout 2000
FcgidMaxRequestLen 1073741824
FcgidPassHeader Authorization
FcgidFixPathinfo 1
AddHandler fcgid-script .fcgi
</IfModule>

Anybody knows which value is using its limit?