> the server is a Xen Virtuall Machine! Xen hosts aren't immune to bad RAM issues. > We dont habe any Problems with the other VM hosted there. > Can this problem come from something else than a broken RAM? If it's not a RAM issue, I would advise to file a bug to your Linux vendor against httpd or php package, because RackTables has no means to crash its executing environment. -- DO4-UANIC