Rebuilding content access permissions I have a site with 760123 nodes, and 20123 users.    

When visiting any page, I get the warning, "Rebuilding content access permissions." I tried rebuilding the access permissions, but the process is very slow.
I see this post, and tried the proposed solution, but it is not working.

I'm using  Drupal 6.
Maybe you're hitting your server's max_execution_time. It's quite likely with such a big number of nodes, and this operation taking a long time is normal.