[Dovecot] imap-login: Panic: epoll_ctl(add, 6) failed: Invalid argument

Hello,

More problems (it seems that we won't be able to put our new servers in 

production). The problem now is that when we reach 1000 dovecot processes we have errors like:

Jul 9 12:10:22 myotis31 dovecot: imap-login: Panic: epoll_ctl(add, 6) failed: Invalid argument Jul 9 12:10:22 myotis31 dovecot: imap-login: Fatal: master: service(imap-login): child 32251 killed with signal 6 (core dumps disabled)

and server doesn't accept any new connection.

Our servers are running in ubuntu 12.04 with kernel 3.2.0-24-generic 

kernel. I have found a similar problem at https://bugzilla.redhat.com/show_bug.cgi?id=681578 but it is for redhat kernel of series 2.6.

Could be the same problem? Any pointer to this problem for ubuntu 

kernels? Or for generic 3.0 kernels?

Any idea?

-- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868887590 Fax: 868888337