[users@httpd] httpd can't start because it's not yet running

[Fabiano Sidler <fabianosidler@xxxxxxxxxxxxxx>]

Hi folks!

root@host $ httpd -k start
(20014)Error string not specified yet: Error retrieving pid file /var/run/httpd.pid
root@host $ ls -l /var/run/httpd.pid 
-rw-r--r--  1 root root 0 May 20 02:44 /var/run/httpd.pid

Same problem with httpd:httpd permissions. 'strace' says:

[...]
open("/var/run/httpd.pid", O_RDONLY)    = 3
read(3, "", 13)                         = 0
write(2, "(20014)Error string not specifie"..., 84) = 84
[...]

Where is the problem?
Greetings,
fips

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