Joe wrote:
> Clear. But how comes 2000MB can be allocated when stack limit is unlimited?
Because malloc() can allocate from the area reserved for the stack.
The stack limit is a limit, not a reservation.
If you set a small stack limit, there will be ~2.7 GiB below where the
libraries are mapped and very little above it. If you set the stack
limit to "unlimited", there will be ~850 MiB below where the libraries
are mapped and ~2 GiB above it.
malloc() can allocate from either of those areas, but any particular
allocation must fit into one or the other. It can't split a single
allocation between areas, and it can't move any existing mappings.
--
Glynn Clements <glynn@xxxxxxxxxxxxxxxxxx>
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