[Bug malloc/20458] setting maximum arenas via mallopt ( M_ARENA_MAX ) is ineffective after enough threads have been created to satisfy mp_.arena_test

["mcornish at ca dot ibm.com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=20458

Michael Cornish <mcornish at ca dot ibm.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|setting maximum arenas via  |setting maximum arenas via
                   |mallopt ( M_ARENA_MAX ) is  |mallopt ( M_ARENA_MAX ) is
                   |ineffective after a thread  |ineffective after enough
                   |has been created            |threads have been created
                   |                            |to satisfy mp_.arena_test

--- Comment #2 from Michael Cornish <mcornish at ca dot ibm.com> ---
revision (was referring to old version): of course narenas_limit won't be set
the first time through, but it will be set after ( narenas > mp_.arena_test )
has been satisfied, which I think should be after the 9th thread gets a new
arena.

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