On Fri, Aug 12, 2016 at 1:55 PM, amul sul <sul_a...@yahoo.co.in> wrote:
> No segfault during dsm_create,  mmap returns  the memory address  which is
> inaccessible.
> Let me see how can I disable kernel overcommit behaviour, but  IMHO,  we
> should prevent ourselves from crashing,  shouldn't we?

Overcommit can be caught at dsm_create time with an mlock call (note,
that MAP_LOCKED isn't the same). Even a transient lock (mlock +
munlock) could prevent sigbus due to overcommit.

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