"H. Peter Anvin" <[EMAIL PROTECTED]> writes: > Eric W. Biederman wrote: >>> This patch only affects the initial page tables, which should have been >>> thrown out *way* long ago at this point. >> >> Yes. I noticed this was happening a few days ago. >> I must not have mentioned it loudly enough. > > You mentioned the continued use of init_mm. This is *very* different. > > What we're seeing here is that ON PSE-CAPABLE HARDWARE, we continue to > not just use the init_mm page directory, but the actual page *tables*, > which should all have been replaced with PSE large pages to begin with.
That is what I meant if not what I communicated. If you read the code that is exactly what it is trying to do. > Reusing the initial page tables on non-PSE-capable hardware *sort of* > makes sense, but his hardware should not fall in that category, I don't > think? (Unless it's one of these machines that fall over if you map the > bottom 4 MB with PSE pages?) I agree that I don't think the current behaviour makes sense. I think the code has accumulated so many small modifications that is very far from making sense in the corner cases. arch/i386 either needs to be frozen as a legacy only thing or it needs to be cleaned up so we can continue to enhance the code. Eric - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
