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From: "H. Peter Anvin" <hpa@zytor.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
	Mike Travis <travis@sgi.com>,
	Christoph Lameter <clameter@sgi.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [crash, bisected] Re: [PATCH 3/4] x86_64: Fold pda into per cpu area
Date: Tue, 01 Jul 2008 19:01:38 -0700	[thread overview]
Message-ID: <486AE182.1020906@zytor.com> (raw)
In-Reply-To: <m1skutffn4.fsf@frodo.ebiederm.org>

Eric W. Biederman wrote:
> 
> For i386 since virtual address space is precious and because there were
> concerns about putting code in __pa we actually relocate the kernel symbols
> during load right after decompression.  When we do relocations absolute
> symbols are a killer.
> 

Well, it means making it clear to the relocator if it should relocate 
those symbols or not.  Since IIRC we're doing "all or nothing" 
relocation, the relative offsets are always the same, even between sections.

	-hpa

  parent reply	other threads:[~2008-07-02  2:05 UTC|newest]

Thread overview: 108+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-04  0:30 [PATCH 0/4] percpu: Optimize percpu accesses Mike Travis
2008-06-04  0:30 ` [PATCH 1/4] Zero based percpu: Infrastructure to rebase the per cpu area to zero Mike Travis
2008-06-10 10:06   ` Ingo Molnar
2008-06-04  0:30 ` [PATCH 2/4] x86: Extend percpu ops to 64 bit Mike Travis
2008-06-10 10:04   ` Ingo Molnar
2008-06-04  0:30 ` [PATCH 3/4] x86_64: Fold pda into per cpu area Mike Travis
2008-06-04 12:59   ` Jeremy Fitzhardinge
2008-06-04 13:48     ` Mike Travis
2008-06-04 13:58       ` Jeremy Fitzhardinge
2008-06-04 14:17         ` Mike Travis
2008-06-09 23:18     ` Christoph Lameter
2008-06-05 10:22   ` [crash, bisected] " Ingo Molnar
2008-06-05 16:02     ` Mike Travis
2008-06-06  8:29       ` Jeremy Fitzhardinge
2008-06-06 13:15         ` Mike Travis
2008-06-18  5:34           ` Jeremy Fitzhardinge
2008-06-10 21:31     ` Mike Travis
2008-06-18 17:36       ` Jeremy Fitzhardinge
2008-06-18 18:17         ` Mike Travis
2008-06-18 18:33           ` Ingo Molnar
2008-06-18 19:33           ` Jeremy Fitzhardinge
     [not found]             ` <48596893.4040908@sgi.com>
     [not found]               ` <485AADAC.3070301@sgi.com>
     [not found]                 ` <485AB78B.5090904@goop.org>
     [not found]                   ` <485AC120.6010202@sgi.com>
     [not found]                     ` <485AC5D4.6040302@goop.org>
     [not found]                       ` <485ACA8F.10006@sgi.com>
     [not found]                         ` <485ACD92.8050109@sgi.com>
2008-06-19 21:35                           ` Jeremy Fitzhardinge
2008-06-19 21:54                             ` Jeremy Fitzhardinge
2008-06-19 22:13                             ` Mike Travis
2008-06-19 22:21                               ` Jeremy Fitzhardinge
2008-06-30 17:49                                 ` Mike Travis
2008-06-19 22:23                               ` Jeremy Fitzhardinge
     [not found]                                 ` <485BDB04.4090709@sgi.com>
2008-06-20 17:25                                   ` Jeremy Fitzhardinge
2008-06-20 17:48                                     ` Christoph Lameter
2008-06-20 18:30                                       ` Mike Travis
2008-06-20 18:40                                         ` Jeremy Fitzhardinge
2008-06-20 18:37                                       ` Jeremy Fitzhardinge
2008-06-20 18:51                                         ` Christoph Lameter
2008-06-20 19:04                                           ` Jeremy Fitzhardinge
2008-06-20 19:21                                             ` H. Peter Anvin
2008-06-20 19:43                                             ` Eric W. Biederman
2008-06-20 20:04                                               ` Mike Travis
2008-06-20 20:37                                                 ` Christoph Lameter
2008-06-20 19:06                                         ` Mike Travis
2008-06-20 20:25                                           ` Eric W. Biederman
2008-06-20 20:55                                             ` Christoph Lameter
2008-06-23 16:55                                             ` Mike Travis
2008-06-23 17:33                                               ` Jeremy Fitzhardinge
2008-06-23 18:04                                                 ` Mike Travis
2008-06-23 18:36                                                   ` Mike Travis
2008-06-23 19:41                                                     ` Jeremy Fitzhardinge
2008-06-24  0:02                                                       ` Mike Travis
2008-06-30 17:07                                             ` Mike Travis
2008-06-30 17:18                                               ` H. Peter Anvin
2008-06-30 17:57                                                 ` Mike Travis
2008-06-30 20:50                                                   ` Eric W. Biederman
2008-06-30 21:08                                                     ` Jeremy Fitzhardinge
2008-07-01  8:40                                                       ` Eric W. Biederman
2008-07-01 16:27                                                         ` Jeremy Fitzhardinge
2008-07-01 16:55                                                           ` Mike Travis
2008-07-01 16:56                                                         ` H. Peter Anvin
2008-07-01 17:26                                                           ` Jeremy Fitzhardinge
2008-07-01 20:40                                                             ` Eric W. Biederman
2008-07-01 21:10                                                               ` Jeremy Fitzhardinge
2008-07-01 21:39                                                                 ` Eric W. Biederman
2008-07-01 21:52                                                                   ` Jeremy Fitzhardinge
2008-07-02  0:20                                                                     ` H. Peter Anvin
2008-07-02  1:15                                                                       ` Mike Travis
2008-07-02  1:32                                                                         ` Eric W. Biederman
2008-07-02  1:51                                                                           ` Mike Travis
2008-07-02  2:50                                                                             ` Eric W. Biederman
2008-07-02  1:40                                                                         ` H. Peter Anvin
2008-07-02  1:44                                                                         ` Mike Travis
2008-07-02  1:45                                                                           ` H. Peter Anvin
2008-07-02  1:55                                                                             ` Mike Travis
2008-07-02 22:50                                                                             ` Mike Travis
2008-07-03  4:34                                                                               ` Eric W. Biederman
2008-07-07 17:17                                                                                 ` Mike Travis
2008-07-07 19:46                                                                                   ` Eric W. Biederman
2008-07-08 18:21                                                                                     ` Mike Travis
2008-07-08 23:36                                                                                       ` Eric W. Biederman
2008-07-08 23:49                                                                                         ` Jeremy Fitzhardinge
2008-07-09 14:39                                                                                           ` Mike Travis
2008-07-25 20:06                                                                                           ` Mike Travis
2008-07-25 20:12                                                                                             ` Jeremy Fitzhardinge
2008-07-25 20:34                                                                                               ` Mike Travis
2008-07-25 20:43                                                                                                 ` Jeremy Fitzhardinge
2008-07-25 21:05                                                                                                   ` Mike Travis
2008-07-09 14:37                                                                                         ` Mike Travis
2008-07-09 22:38                                                                                           ` Eric W. Biederman
2008-07-09 23:30                                                                                             ` Mike Travis
2008-07-10  0:04                                                                                               ` Eric W. Biederman
2008-07-02  2:01                                                                   ` H. Peter Anvin [this message]
2008-07-02  3:08                                                                     ` Eric W. Biederman
2008-07-01 21:11                                                               ` Andi Kleen
2008-07-01 21:42                                                                 ` Eric W. Biederman
2008-07-01 18:41                                                           ` Eric W. Biederman
2008-07-01 12:09                                                       ` Mike Travis
2008-07-01 11:49                                                     ` Mike Travis
2008-06-30 17:43                                               ` Jeremy Fitzhardinge
2008-06-04  0:30 ` [PATCH 4/4] x86: Replace xxx_pda() operations with x86_xx_percpu() Mike Travis
2008-06-09 13:03   ` Ingo Molnar
2008-06-09 16:08     ` Mike Travis
2008-06-09 17:36     ` Mike Travis
2008-06-09 18:20       ` Christoph Lameter
2008-06-09 23:29         ` Jeremy Fitzhardinge
2008-06-10 10:09       ` Ingo Molnar
2008-06-10 15:07         ` Mike Travis
2008-06-04 10:18 ` [PATCH] x86: collapse the various size-dependent percpu accessors together Jeremy Fitzhardinge
2008-06-04 10:45   ` Jeremy Fitzhardinge
2008-06-04 11:29     ` Ingo Molnar
2008-06-04 12:09       ` Jeremy Fitzhardinge
2008-06-10 17:21         ` Christoph Lameter

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