I have found errors on my log:

[Mon Jun 7 08:44:34 2004] [error] mod_gzip: EMPTY FILE [/tmp/_22701_181_82.wrk] in sendfile2
[Mon Jun 7 08:44:34 2004] [error] mod_gzip: Make sure all named directories exist and have the correct permissions.

Im using cPanel 9.3.0 R104. What does it mean?

-asc-

I started getting those too and some of the .wrk files left over were up to a GB in size.

I recommend you disable mod_gzip A.S.A.P. to preserve the stability of your machine.

yeah re-compile apache without mod_gzip seems there is some issue about it.

My problem has fixed after disable mod_gzip on SSL virtual host:

<VirtualHost xxx.xxx.xxx.xxx:443>
...host information...
<IfModule mod_gzip.c>
mod_gzip_on No
</IfModule>
</VirtualHost>

Ref: http://lists.over.net/pipermail/mod_gzip/2002-February/002782.html

-asc-

Thats correct. To get mod_gzip and ssl working, you will need to install mod_proxy or disable mod_gzip.