Apache2 allocate shared memory!

[nx13372 <nx13372a@net.vodafone.pt>]

Hi,

I'm using:
ii  apache2-common 2.0.50-12      Next generation, scalable, extendable 
web se
ii  apache2-doc    2.0.50-12      Documentation for apache2
ii  apache2-mpm-pr 2.0.50-12      Traditional model for Apache2

I'm getting:
[Mon Sep 13 12:11:34 2004] [info] Init: Initializing OpenSSL library
[Mon Sep 13 12:11:34 2004] [info] Init: Seeding PRNG with 512 bytes of 
entropy
[Mon Sep 13 12:11:34 2004] [info] Init: Generating temporary RSA private 
keys (5 12/1024 bits)
[Mon Sep 13 12:11:34 2004] [info] Init: Generating temporary DH 
parameters (512/ 1024 bits)
[Mon Sep 13 12:11:34 2004] [info] Init: Initializing (virtual) servers 
for SSL
[Mon Sep 13 12:11:34 2004] [info] Server: Apache/2.0.50, Interface: 
mod_ssl/2.0. 50, Library: OpenSSL/0.9.7d
[Mon Sep 13 12:11:34 2004] [notice] mod_python: Creating 20 session 
mutexes base d on 20 max processes and 0 max threads.
[Mon Sep 13 12:11:35 2004] [info] Init: Initializing OpenSSL library
[Mon Sep 13 12:11:35 2004] [info] Init: Seeding PRNG with 512 bytes of 
entropy
[Mon Sep 13 12:11:35 2004] [info] Init: Generating temporary RSA private 
keys (5 12/1024 bits)
[Mon Sep 13 12:11:36 2004] [info] Init: Generating temporary DH 
parameters (512/ 1024 bits)
[Mon Sep 13 12:11:36 2004] [error] Cannot allocate shared memory: 
(17)File exist

File exist, what file?
I can't start or restart apache2!

thanks in advance.