[Mono-dev] [Patch] Make Boehm GC stack scanning less aggressive

[Dick Porter]

Hi all

The attached patch makes the stack marking in libgc much less
aggressive.  Instead of marking every object that happens to be pointed
to by random numbers, it uses the descriptor-based scanning function
instead.

I think this is safe for mono, as (as was pointed out to me) every
allocation has a descriptor.

It fixes the stress-test that David posted a week or two ago, and in the
real world it allows our server to free up much more memory.  It has
been tested on a production server.

Comments?

- Dick

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