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RE: x86_64: potential critical issue with quicklists and page table pages

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From: Luck, Tony <tony.luck@...>
To: Christoph Lameter <clameter@...>, Linus Torvalds <torvalds@...>
Cc: Siddha, Suresh B <suresh.b.siddha@...>, <akpm@...>, <ak@...>, <linux-kernel@...>, Mallick, Asit K <asit.k.mallick@...>
Subject: RE: x86_64: potential critical issue with quicklists and page table pages
Date: Friday, September 21, 2007 - 3:59 pm

> The quicklists have a long history and this bug has therefore also been in 

IA64 doesn't do a pgd>pud>pmd>pte table walk in h/w.  The VHPT leaps
straight to the pte page (through the virtual mapping of the VHPT). So
this wasn't a problem for IA64.

-Tony
-
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Messages in current thread:
x86_64: potential critical issue with quicklists and page ta..., Siddha, Suresh B, (Fri Sep 21, 2:07 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Christoph Lameter, (Fri Sep 21, 2:48 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Linus Torvalds, (Fri Sep 21, 2:48 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Christoph Lameter, (Fri Sep 21, 2:50 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Linus Torvalds, (Fri Sep 21, 2:55 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Linus Torvalds, (Fri Sep 21, 3:05 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Christoph Lameter, (Fri Sep 21, 3:07 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Linus Torvalds, (Fri Sep 21, 3:21 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Benjamin Herrenschmidt, (Mon Sep 24, 5:27 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Christoph Lameter, (Mon Sep 24, 5:42 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Benjamin Herrenschmidt, (Mon Sep 24, 8:09 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Christoph Lameter, (Fri Sep 21, 3:26 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Linus Torvalds, (Fri Sep 21, 3:40 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Christoph Lameter, (Fri Sep 21, 3:56 pm)
RE: x86_64: potential critical issue with quicklists and pag..., Luck, Tony, (Fri Sep 21, 3:59 pm)
RE: x86_64: potential critical issue with quicklists and pag..., Christoph Lameter, (Fri Sep 21, 4:15 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Linus Torvalds, (Fri Sep 21, 3:44 pm)
Re: x86_64: potential critical issue with quicklists and pag..., Andi Kleen, (Fri Sep 21, 2:18 pm)