Re: [PATCH/RFC] Shared page tables

From: Andi Kleen
Date: Mon Jan 23 2006 - 20:19:16 EST


On Tuesday 24 January 2006 01:51, Dave McCracken wrote:
> Most of the large OLTP applications use fixed address
> mapping for their large shared regions.

Really? That sounds like a quite bad idea because it can easily break
if something changes in the way virtual memory is laid out (which
has happened - e.g. movement to 4level page tables on x86-64 and now
randomized mmaps)

I don't think we should encourage such unportable behaviour.

-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/