Messages in this thread | | | Date | Tue, 27 Oct 1998 11:59:29 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: [patch] jiffies wraparound [Re: 2.1.125 Show stopper list: Draft] |
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On Tue, 27 Oct 1998, MOLNAR Ingo wrote:
> But it would be a neat feature nevertheless, unfortunately exporting 4MB > pages to ring 3 user-space doesnt seem to work (i've tried), only ring 0 > is supposed to see those mappings.
The VM layer currently gets confused if it sees a 4MB page.
I actually had 4MB pages working at one point (with magic hackery to the pmd_xxx macros - no generic VM changes necessary), but it became fairly ugly, and the generated code was nasty for the normal case of 4kB pages.
Linus
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