https://bugzilla.novell.com/show_bug.cgi?id=416251 User npiggin@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=416251#c7 --- Comment #7 from Nick Piggin <npiggin@novell.com> 2008-08-18 10:12:59 MDT --- Sorry I just can't exactly see how it fits together -- I'd not followed the PAT stuff too closely. AFAIKS _PAGE_PAT/_PAGE_PSE (bit 7) is not set in _PAGE_CHG_MASK. But anyway hmm... I don't know exactly about using _PAGE_ACCESSED for the _PAGE_PROTNONE bit... it might possibly be able to blow up in page reclaim when we age the ptes and strip _PAGE_ACCESSED? I think those definitions just contain _PAGE_ACCESSED so that when the fault handler sets up the new pte then the CPU will not trap again to set the bit itself. _PAGE_PROTNONE is only valid when _PAGE_PRESENT is clear, so really we can use any bit for it, it's no problem to change it somewhere else... but I'd just like to understand what I'm missing here. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.