Re: missing madvise functionality

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Re: missing madvise functionality

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To: Eric Dumazet <dada1@...>

Cc: Rik van Riel <riel@...>, Andrew Morton <akpm@...>, Ulrich Drepper <drepper@...>, Andi Kleen <andi@...>, Linux Kernel <linux-kernel@...>, Jakub Jelinek <jakub@...>, <linux-mm@...>, Hugh Dickins <hugh@...>

Subject: Re: missing madvise functionality

Date: Tuesday, April 3, 2007 - 5:12 pm

On Tue, 3 April 2007 23:10:14 +0200, Eric Dumazet wrote:
quoted text> 
> mmap()/brk() must give fresh NULL pages, but maybe madvise(MADV_DONTNEED) 
> can relax this requirement (if the pages were reclaimed, then a page fault 
> could bring a new page with random content)

...provided that it doesn't leak information from the kernel?

Jörn

-- 
All art is but imitation of nature.
-- Lucius Annaeus Seneca
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Messages in current thread:

missing madvise functionality, Ulrich Drepper, (Tue Apr 3, 12:26 pm)

Re: missing madvise functionality, Nick Piggin, (Wed Apr 4, 3:46 am)

Re: missing madvise functionality, Rik van Riel, (Thu Apr 5, 2:38 pm)

Re: missing madvise functionality, Nick Piggin, (Thu Apr 5, 9:28 pm)

Re: missing madvise functionality, Andrew Morton, (Thu Apr 5, 5:07 pm)

Re: missing madvise functionality, Rik van Riel, (Thu Apr 5, 5:39 pm)

Re: missing madvise functionality, Jakub Jelinek, (Wed Apr 4, 4:20 am)

Re: missing madvise functionality, Nick Piggin, (Wed Apr 4, 4:47 am)

Re: missing madvise functionality, Nick Piggin, (Thu Apr 5, 12:23 am)

Re: missing madvise functionality, Nick Piggin, (Wed Apr 4, 4:04 am)

Re: missing madvise functionality, Marko Macek, (Tue Apr 3, 10:53 pm)

Re: missing madvise functionality, Hugh Dickins, (Wed Apr 4, 10:37 am)

Re: missing madvise functionality, Rik van Riel, (Tue Apr 3, 10:56 pm)

Re: missing madvise functionality, Arnd Bergmann, (Tue Apr 3, 6:07 pm)

Re: missing madvise functionality, Ulrich Drepper, (Tue Apr 3, 6:23 pm)

Re: missing madvise functionality, Andi Kleen, (Tue Apr 3, 2:14 pm)

Re: missing madvise functionality, Ulrich Drepper, (Tue Apr 3, 1:20 pm)

Re: missing madvise functionality, Andi Kleen, (Tue Apr 3, 1:28 pm)

Re: missing madvise functionality, Andrew Morton, (Tue Apr 3, 3:59 pm)

Re: missing madvise functionality, Ulrich Drepper, (Tue Apr 3, 4:17 pm)

Re: missing madvise functionality, Andrew Morton, (Tue Apr 3, 4:51 pm)

Re: missing madvise functionality, Anton Blanchard, (Wed Apr 4, 2:49 pm)

Re: missing madvise functionality, Rik van Riel, (Tue Apr 3, 5:00 pm)

Re: missing madvise functionality, Andrew Morton, (Tue Apr 3, 5:16 pm)

Re: missing madvise functionality, Eric Dumazet, (Tue Apr 3, 5:10 pm)

Re: missing madvise functionality, Jörn, (Tue Apr 3, 5:12 pm)

Re: missing madvise functionality, Ulrich Drepper, (Tue Apr 3, 5:46 pm)

Re: missing madvise functionality, Andi Kleen, (Tue Apr 3, 6:51 pm)

Re: missing madvise functionality, Ulrich Drepper, (Tue Apr 3, 7:07 pm)

Re: missing madvise functionality, Jeremy Fitzhardinge, (Tue Apr 3, 5:22 pm)

Re: missing madvise functionality, Rik van Riel, (Tue Apr 3, 5:29 pm)

Re: missing madvise functionality, Rik van Riel, (Tue Apr 3, 5:15 pm)

Re: missing madvise functionality, Eric Dumazet, (Tue Apr 3, 5:30 pm)

Re: missing madvise functionality, Ulrich Drepper, (Tue Apr 3, 4:57 pm)

Re: missing madvise functionality, Jakub Jelinek, (Tue Apr 3, 4:29 pm)

Re: missing madvise functionality, Rik van Riel, (Thu Apr 5, 3:31 am)

Re: missing madvise functionality, Ulrich Drepper, (Thu Apr 5, 12:10 pm)

Re: missing madvise functionality, Nick Piggin, (Thu Apr 5, 10:28 pm)

Re: missing madvise functionality, Ulrich Drepper, (Thu Apr 5, 10:52 pm)

Re: missing madvise functionality, Nick Piggin, (Thu Apr 5, 10:59 pm)

Re: missing madvise functionality, Jakub Jelinek, (Thu Apr 5, 5:45 am)

Re: missing madvise functionality, Rik van Riel, (Thu Apr 5, 12:15 pm)

Re: missing madvise functionality, Eric Dumazet, (Thu Apr 5, 4:08 am)

Re: missing madvise functionality, Rik van Riel, (Thu Apr 5, 4:31 am)

Re: missing madvise functionality, Eric Dumazet, (Thu Apr 5, 5:06 am)

Re: missing madvise functionality, Rik van Riel, (Thu Apr 5, 3:39 am)

Re: missing madvise functionality, Andrew Morton, (Thu Apr 5, 4:32 am)

Re: missing madvise functionality, Rik van Riel, (Thu Apr 5, 11:47 am)

preemption and rwsems (was: Re: missing madvise functionality), Andrew Morton, (Wed Apr 4, 7:00 pm)

Re: preemption and rwsems (was: Re: missing madvise function..., David Howells, (Thu Apr 5, 8:48 am)

Re: preemption and rwsems (was: Re: missing madvise function..., Andrew Morton, (Thu Apr 5, 3:27 pm)

Re: preemption and rwsems (was: Re: missing madvise function..., Ingo Molnar, (Thu Apr 5, 3:11 pm)

Re: preemption and rwsems (was: Re: missing madvise function..., Andrew Morton, (Thu Apr 5, 4:37 pm)

Re: preemption and rwsems (was: Re: missing madvise function..., Ingo Molnar, (Fri Apr 6, 5:08 am)

Re: preemption and rwsems (was: Re: missing madvise function..., Andrew Morton, (Fri Apr 6, 3:30 pm)

Re: preemption and rwsems (was: Re: missing madvise function..., Ingo Molnar, (Fri Apr 6, 3:40 pm)

Re: missing madvise functionality, William Lee Irwin III, (Wed Apr 4, 9:09 am)

Re: missing madvise functionality, Andrew Morton, (Wed Apr 4, 2:51 pm)

Re: missing madvise functionality, William Lee Irwin III, (Thu Apr 5, 12:14 am)

Re: missing madvise functionality, William Lee Irwin III, (Wed Apr 4, 9:38 am)

Re: missing madvise functionality, Andrew Morton, (Tue Apr 3, 5:49 pm)

Re: missing madvise functionality, Andrew Morton, (Tue Apr 3, 7:44 pm)

Re: missing madvise functionality, Andrew Morton, (Tue Apr 3, 7:02 pm)

Re: missing madvise functionality, Hugh Dickins, (Wed Apr 4, 5:15 am)

Re: missing madvise functionality, Andrew Morton, (Wed Apr 4, 2:04 pm)

Re: missing madvise functionality, Hugh Dickins, (Wed Apr 4, 2:39 pm)

Re: missing madvise functionality, Rik van Riel, (Wed Apr 4, 2:08 pm)

Re: missing madvise functionality, Andrew Morton, (Wed Apr 4, 4:56 pm)

Re: missing madvise functionality, Rik van Riel, (Wed Apr 4, 10:55 am)

Re: missing madvise functionality, Hugh Dickins, (Wed Apr 4, 11:25 am)

Re: missing madvise functionality, Nick Piggin, (Wed Apr 4, 9:44 pm)

Re: missing madvise functionality, Eric Dumazet, (Tue Apr 3, 7:01 pm)

Re: missing madvise functionality, Nick Piggin, (Tue Apr 3, 10:22 pm)

Re: missing madvise functionality, Peter Zijlstra, (Wed Apr 4, 4:25 am)

Re: missing madvise functionality, Nick Piggin, (Wed Apr 4, 4:55 am)

Re: missing madvise functionality, Eric Dumazet, (Wed Apr 4, 5:34 am)

Re: missing madvise functionality, Nick Piggin, (Wed Apr 4, 6:05 am)

Re: missing madvise functionality, Eric Dumazet, (Wed Apr 4, 7:54 am)

Re: missing madvise functionality, Nick Piggin, (Wed Apr 4, 10:01 pm)

Re: missing madvise functionality, Eric Dumazet, (Thu Apr 5, 2:09 am)

Re: missing madvise functionality, Ulrich Drepper, (Thu Apr 5, 2:19 am)

Re: missing madvise functionality, Eric Dumazet, (Thu Apr 5, 2:54 am)

Re: missing madvise functionality, Nick Piggin, (Wed Apr 4, 5:45 am)

Re: missing madvise functionality, William Lee Irwin III, (Wed Apr 4, 5:12 am)

Re: missing madvise functionality, Nick Piggin, (Wed Apr 4, 5:23 am)

Re: missing madvise functionality, Eric Dumazet, (Wed Apr 4, 1:41 am)

[patches] threaded vma patches (was Re: missing madvise func..., Nick Piggin, (Wed Apr 4, 2:09 am)

Re: [patches] threaded vma patches (was Re: missing madvise ..., Ulrich Drepper, (Wed Apr 4, 2:42 am)

Re: [patches] threaded vma patches (was Re: missing madvise ..., Eric Dumazet, (Wed Apr 4, 2:50 am)

Re: [patches] threaded vma patches (was Re: missing madvise ..., Ulrich Drepper, (Wed Apr 4, 2:54 am)

Re: [patches] threaded vma patches (was Re: missing madvise ..., Eric Dumazet, (Wed Apr 4, 3:33 am)

Re: [patches] threaded vma patches (was Re: missing madvise ..., Nick Piggin, (Wed Apr 4, 2:44 am)

Re: [patches] threaded vma patches (was Re: missing madvise ..., Andrew Morton, (Wed Apr 4, 2:26 am)

Re: [patches] threaded vma patches (was Re: missing madvise ..., Nick Piggin, (Wed Apr 4, 2:38 am)

Re: missing madvise functionality, Rik van Riel, (Tue Apr 3, 4:38 pm)

Re: missing madvise functionality, Andi Kleen, (Tue Apr 3, 4:09 pm)

Re: missing madvise functionality, Rik van Riel, (Tue Apr 3, 12:55 pm)

Re: missing madvise functionality, Ulrich Drepper, (Tue Apr 3, 1:10 pm)

Re: missing madvise functionality, Rik van Riel, (Tue Apr 3, 1:37 pm)

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