Messages in this thread | | | Date | Wed, 20 Mar 2002 21:46:07 +0000 | From | Christoph Hellwig <> | Subject | Re: Creating a per-task kernel space for kmap, user pagetables, et al |
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On Wed, Mar 20, 2002 at 10:34:25PM +0100, Andrea Arcangeli wrote: > > The problem is not the 4GB ZONE_NORMAL but the ~1GB KVA space. > > Then you misunderstood what's the zone-normal, the zone normal is 800M > in size not 4GB.
No, it was braino when writing.
> The 1GB of KVA is what constraint the size of the zone > normal to 800M. We're talking about the same thing, just looking at it > from different point of views.
Okay agreed now after the 'reminder'.
> > UnixWare/OpenUnix had huge problems getting all kernel structs for managing > > 16GB virtual into that - on the other hand their struct page is more > > then twice as big as ours.. > > We do pretty well with pte-highmem, there is some other bit that will be > better to optimize, but nothing major.
One major area to optimize are the kernel stacks I think. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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