Re: [take6 1/3] kevent: Core files.

[Andrew Morton]

On Thu, 10 Aug 2006 11:50:47 +0400
Evgeniy Polyakov <johnpol@xxxxxxxxxxx> wrote:

> > Afaict this mmap function gives a user a free way of getting pinned memory. 
> > What is the upper bound on the amount of memory which a user can thus
> > obtain?
> 
> it is limited by maximum queue length which is 4k entries right now, so
> maximum number of paged here is 4k*40/page_size, i.e. about 40 pages on
> x86.

Is that per user or per fd?  If the latter that is, with the usual
RLIMIT_NOFILE, 160MBytes.  2GB with 64k pagesize.  Problem ;)

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