[Dovecot] Strange Dovecot 2.0.20 auth chokes and cores

[Ed W]

On 30/05/2012 17:25, Alan Brown wrote:
>> Is any problem with epoll on 3.2.x kernels?
>
> Yes - and it's been discussed here.
>
> Some "bright spark" rewrote the kernel epoll code to prevent DoS 
> attacks caused by "excessive forking".
>

Do you have a link to the previous discussions?  This is new to me? 
Can't find it immediately in the list?

Cheers

Ed W