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From: "H. Peter Anvin" <hpa@zytor.com>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Yinghai Lu <yinghai@kernel.org>, Ingo Molnar <mingo@elte.hu>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [crash] Re: Latest brk patchset
Date: Mon, 16 Mar 2009 14:14:43 -0700	[thread overview]
Message-ID: <49BEC143.6030104@zytor.com> (raw)
In-Reply-To: <49BEBD98.3090905@goop.org>

Jeremy Fitzhardinge wrote:
> 
> Well, its a bit more complex than that; we'd need to make it conditional 
> on the user/kernel split, which seems all a bit fiddly.  I guess it 
> could be something like:
> 
> MAPPING_BEYOND_END = PAGE_TABLE_SIZE((1<<(32-PAGE_SHIFT)) - (PAGE_OFFSET 
> / PAGE_SIZE)) * PAGE_SIZE
> 

Or simplified:

PAGE_TABLE_SIZE(((1 << 32)-PAGE_OFFSET) >> PAGE_SHIFT) << PAGE_SHIFT

	-hpa


  reply	other threads:[~2009-03-16 21:19 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-14 23:43 Latest brk patchset H. Peter Anvin
2009-03-15  0:32 ` Jeremy Fitzhardinge
2009-03-15  0:37   ` H. Peter Anvin
2009-03-15  6:09     ` Jeremy Fitzhardinge
2009-03-15  6:29     ` Jeremy Fitzhardinge
2009-03-15 20:38       ` [crash] " Ingo Molnar
2009-03-15 20:42         ` Ingo Molnar
2009-03-15 21:19         ` Jeremy Fitzhardinge
2009-03-15 21:28           ` Ingo Molnar
2009-03-15 23:28             ` Jeremy Fitzhardinge
2009-03-16  8:54               ` Ingo Molnar
2009-03-16 16:12                 ` Jeremy Fitzhardinge
2009-03-16 16:56                   ` Yinghai Lu
2009-03-16 17:20                     ` Jeremy Fitzhardinge
2009-03-16 17:54                     ` Jeremy Fitzhardinge
2009-03-16 18:15                       ` H. Peter Anvin
2009-03-16 18:17                       ` Yinghai Lu
2009-03-16 18:22                         ` H. Peter Anvin
2009-03-16 18:31                           ` Yinghai Lu
2009-03-16 18:17                       ` H. Peter Anvin
2009-03-16 19:25                         ` Jeremy Fitzhardinge
2009-03-16 19:34                           ` H. Peter Anvin
2009-03-16 19:48                           ` Yinghai Lu
2009-03-16 20:00                             ` Jeremy Fitzhardinge
2009-03-16 20:26                               ` H. Peter Anvin
2009-03-16 20:59                                 ` Jeremy Fitzhardinge
2009-03-16 21:14                                   ` H. Peter Anvin [this message]
2009-03-16 21:31                                     ` Jeremy Fitzhardinge
2009-03-16 22:35                                       ` H. Peter Anvin
2009-03-17  2:26                                         ` Yinghai Lu
2009-03-17  4:00                                           ` H. Peter Anvin
2009-03-17  5:07                                             ` Jeremy Fitzhardinge
2009-03-17 16:04                                               ` H. Peter Anvin
2009-03-17 19:42                                                 ` Jeremy Fitzhardinge
2009-03-17 19:45                                                   ` H. Peter Anvin
2009-03-17 19:59                                                     ` Jeremy Fitzhardinge
2009-03-17 21:19                                                       ` Yinghai Lu
2009-03-17 21:28                                                         ` Jeremy Fitzhardinge
2009-03-17 19:47                                                 ` Jeremy Fitzhardinge
2009-03-22 15:09                 ` Ingo Molnar
2009-03-22 17:12                   ` Jeremy Fitzhardinge
2009-03-22 17:22                     ` Ingo Molnar
2009-03-22 21:48                       ` Jeremy Fitzhardinge
2009-03-23 16:39                         ` [tip:x86/setup] x86/dmi: fix dmi_alloc() section mismatches Jeremy Fitzhardinge
2009-03-15  1:37   ` Latest brk patchset H. Peter Anvin
2009-03-15  4:43     ` Yinghai Lu
2009-03-15  4:51       ` H. Peter Anvin
2009-03-15  5:33         ` Yinghai Lu
2009-03-15  6:05           ` Jeremy Fitzhardinge
2009-03-15  6:25             ` Yinghai Lu
2009-03-15  6:03     ` Jeremy Fitzhardinge

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