[PATCH] Define MAP_NORESERVE to zero for FreeBSD
dimitry at andric.com
Tue Feb 17 11:13:53 PST 2015
In http://reviews.llvm.org/D7485#124902, @kcc wrote:
> How does this all work then?
> We need MAP_NORESERVE on Linux to map 20Tb for the asan process.
> What's different on FreeBSD?
The MAP_NORESERVE and MAP_RENAME flags were retired here: https://reviews.freebsd.org/rS273250
Apparently they were never implemented on FreeBSD, at least not with Linux semantics. As far as I understand, FreeBSD doesn't have the functionality of signalling the affected process, instead of blocking for a page.
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