Re: /proc/<n>/maps growing...

[Andrea Arcangeli]

On Mon, Aug 06, 2001 at 06:30:03AM -0400, Jakub Jelinek wrote:
> On Mon, Aug 06, 2001 at 10:59:04AM +0200, Andrea Arcangeli wrote:
> > On Mon, Aug 06, 2001 at 04:41:21PM +1000, David Luyer wrote:
> > > crashes for no apparent reason every 6 hours or so.. unless that could
> > > be when
> > > it hits some 'limit' on the number of mappings allowed? 
> > 
> > there's no limit, this is _only_ a performance issue, functionality is
> > not compromised in any way [except possibly wasting some memory
> > resources that could lead to running out of memory earlier].
> 
> There is a limit, /proc/sys/vm/max_map_count.

in mainline it's not a sysctl, btw.

I never noticed this limit and personally I don't like it regardless of
the merge_segments (but of course without merge_segments it is can
trigger problems while switching between 2.2 and 2.4).

Andrea