Fatal error: Out of memory

[DocSnyd3r]

Hi,
I recently get these "Fatal error: Out of memory (allocated 10223616) (tried to allocate 4864 bytes)" errors a lot on different sites. For example with Joomla, phpBB3, wikiMedia. I did not change the fcgi configuration and runnig Debian Etch. I also have a lot of warnings in my apache2 log like:

Code:

[Thu Mar 06 12:22:21 2008] [warn] FastCGI: (dynamic) server "/var/www/fcgi/xxx.eu/php5-fcgi-starter" (pid 24348) termination signaled
[Thu Mar 06 12:22:21 2008] [warn] FastCGI: (dynamic) server "/var/www/fcgi/xxx.eu/php5-fcgi-starter" (pid 24348) terminated by calling exit with status '0'
[Thu Mar 06 12:23:21 2008] [warn] FastCGI: (dynamic) server "/var/www/fcgi/xxx.eu/php5-fcgi-starter" (pid 24344) termination signaled
[Thu Mar 06 12:23:21 2008] [warn] FastCGI: (dynamic) server "/var/www/fcgi/xxx.eu/php5-fcgi-starter" (pid 24344) terminated by calling exit with status '0'

If this keeps continuing the console also throws errors like
"Inconsistency detected by ld.so: dl-minimal.c: 84: __libc_memalign: Assertion `page != ((void *) -1)' failed!" and nothing works. Only a restart helps.

PS It's a vHost