Messages in this thread | | | Date | Thu, 09 Jul 1998 16:15:32 -0400 | From | Bill Hawes <> | Subject | Re: Yet more VM writable swap-cached pages |
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Ganesh Sittampalam wrote:
> Jul 9 18:27:30 munchkin kernel: VM: Found a writable swap-cached page! > Jul 9 18:27:30 munchkin kernel: pte 6a8042, vma flags 00000070, page ^^^^^^ > flags 0000028c, count 2 > Jul 9 18:27:30 munchkin kernel: page=c0206f80@0017da00, found=c0206f80, > count=3
The pte value above is very puzzling -- it says that the page is not present, in which case the "writable" bit means PROT_NONE, not writable. The pte value is tested immediately after dereferencing the page table to make sure it's present, so I don't see how we could reach this point without the page being present.
Maybe this is a compiler bug after all ...
Regards, Bill
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