From: Andy Pfiffer <andyp@osdl.org>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@transmeta.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Werner Almesberger <wa@almesberger.net>,
Suparna Bhattacharya <suparna@in.ibm.com>,
"Matt D. Robinson" <yakker@aparity.com>,
Rusty Russell <rusty@rustcorp.com.au>,
Mike Galbraith <efault@gmx.de>,
"Martin J. Bligh" <Martin.Bligh@us.ibm.com>,
Dave Hansen <haveblue@us.ibm.com>
Subject: Re: [ANNOUNCE][CFT] kexec for v2.5.48 && kexec-tools-1.7 -- Success Story!
Date: 19 Nov 2002 09:21:08 -0800 [thread overview]
Message-ID: <1037726468.10400.81.camel@andyp> (raw)
In-Reply-To: <m1isyt26wr.fsf@frodo.biederman.org>
On Tue, 2002-11-19 at 02:25, Eric W. Biederman wrote:
> > Complete kernel boot-up log attached below. I'm going to try to find my
> > other 576MB of RAM with the right command-line magic... ;^)
>
> Or you can write a routine to gather that information dynamically and send
> me a patch for /sbin/kexec. Though it may take another proc file to do
> that one properly.
>
> Eric
Just to make sure I understand the problem. Until we can make all
boot-time BIOS calls work, we need a way to:
1) capture the initial memory map used by the kernel, and
2) a way to supply that information to the to-be-run image.
On my system, the e820 map looks like this (from full reboot):
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009dc00 (usable)
BIOS-e820: 000000000009dc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 0000000027fed140 (usable)
BIOS-e820: 0000000027fed140 - 0000000027ff0000 (ACPI data)
BIOS-e820: 0000000027ff0000 - 0000000028000000 (reserved)
BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
639MB LOWMEM available.
And /proc/iomem looks like this:
00000000-0009dbff : System RAM
0009dc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000ca000-000cb7ff : Extension ROM
000cb800-000cffff : Extension ROM
000f0000-000fffff : System ROM
00100000-27fed13f : System RAM
00100000-00309f9a : Kernel code
00309f9b-003d873f : Kernel data
27fed140-27feffff : ACPI Tables
27ff0000-27ffffff : reserved
effff000-efffffff : Adaptec AIC-7892P U160/m
effff000-efffffff : aic7xxx
f0000000-f7ffffff : S3 Inc. Savage 4
fea00000-feafffff : Intel Corp. 82557/8/9 [Ethernet
fea00000-feafffff : e100
feb7e000-feb7efff : ServerWorks OSB4/CSB5 USB Contro
feb7f000-feb7ffff : Intel Corp. 82557/8/9 [Ethernet
feb7f000-feb7ffff : e100
feb80000-febfffff : S3 Inc. Savage 4
fec00000-ffffffff : reserved
Comparing the two:
Range e820 /proc/iomem
0000000-0009dbff usable System RAM
0100000-27fed140 usable System RAM
>From a sample of 1 system, it looks like we should be able to use any
ranges marked as "System RAM" that are listed /proc/iomem. Did I miss
something?
I'll see if I can conjure up something...
Andy
next prev parent reply other threads:[~2002-11-19 17:14 UTC|newest]
Thread overview: 323+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-31 2:07 What's left over Rusty Russell
2002-10-31 2:31 ` Linus Torvalds
2002-10-31 2:43 ` Alexander Viro
2002-10-31 16:36 ` Oliver Xymoron
2002-10-31 17:04 ` Stephen Frost
2002-10-31 17:38 ` Linus Torvalds
2002-10-31 18:00 ` Oliver Xymoron
2002-11-06 20:52 ` Florian Weimer
2002-10-31 22:57 ` Pavel Machek
2002-10-31 22:28 ` Xavier Bestel
2002-10-31 23:08 ` Pavel Machek
2002-11-01 9:55 ` Miquel van Smoorenburg
2002-10-31 3:00 ` Rusty Russell
2002-10-31 3:19 ` tridge
2002-10-31 6:21 ` Chris Wedgwood
2002-11-05 3:38 ` Andreas Gruenbacher
2002-10-31 3:22 ` Christoph Hellwig
2002-10-31 3:31 ` tridge
2002-10-31 10:15 ` Joe Thornber
2002-10-31 14:26 ` Jeff Garzik
2002-10-31 14:55 ` Alan Cox
2002-10-31 21:14 ` Rusty Russell
2002-11-01 8:20 ` Joe Thornber
2002-10-31 11:03 ` Geert Uytterhoeven
2002-10-31 21:17 ` James Simmons
2002-10-31 3:06 ` Rik van Riel
2002-10-31 3:19 ` Stephen Frost
2002-10-31 21:09 ` john stultz
2002-10-31 21:49 ` Werner Almesberger
2002-10-31 22:32 ` john stultz
2002-10-31 22:54 ` Werner Almesberger
2002-11-01 0:54 ` john stultz
2002-11-01 1:31 ` Werner Almesberger
2002-11-05 3:58 ` Andreas Gruenbacher
2002-10-31 6:22 ` Chris Wedgwood
2002-10-31 6:48 ` Dax Kelson
2002-10-31 6:56 ` Chris Wedgwood
2002-10-31 14:31 ` Jeff Garzik
2002-10-31 18:12 ` Chris Wedgwood
2002-10-31 18:49 ` Linus Torvalds
2002-10-31 19:43 ` Chris Wedgwood
2002-11-01 15:25 ` Linus Torvalds
2002-11-01 15:35 ` bert hubert
2002-11-01 15:50 ` Gerald Britton
2002-11-01 18:17 ` Matt Porter
2002-11-01 16:15 ` Michael Clark
2002-11-01 16:16 ` Erik Andersen
2002-11-01 20:43 ` romieu
2002-10-31 18:28 ` Nicholas Wourms
2002-10-31 18:58 ` Alexander Viro
2002-10-31 19:14 ` Nicholas Wourms
2002-10-31 19:20 ` Alan Cox
2002-10-31 19:17 ` Nicholas Wourms
2002-10-31 20:45 ` Jeff Garzik
2002-11-01 6:00 ` James Morris
2002-10-31 7:10 ` Alexander Viro
2002-10-31 7:21 ` Dax Kelson
2002-10-31 7:42 ` Alexander Viro
2002-10-31 16:24 ` Stephen Wille Padnos
2002-10-31 16:44 ` Alexander Viro
2002-10-31 17:11 ` Stephen Frost
2002-10-31 17:30 ` Alexander Viro
2002-10-31 17:39 ` Linus Torvalds
2002-10-31 17:36 ` Richard Gooch
2002-11-02 17:35 ` LA Walsh
2002-11-02 20:44 ` Chris Wedgwood
2002-10-31 22:53 ` Pavel Machek
2002-10-31 9:44 ` Lech Szychowski
2002-10-31 3:14 ` Karim Yaghmour
2002-10-31 16:00 ` LTT for inclusion into 2.5 bob
2002-10-31 16:19 ` Is your idea good? [was: Re: LTT for inclusion into 2.5] Larry McVoy
2002-10-31 16:38 ` Cort Dougan
2002-10-31 16:47 ` bob
2002-10-31 17:35 ` Karim Yaghmour
2002-10-31 3:21 ` What's left over Stephen Lord
2002-10-31 3:59 ` Andreas Dilger
2002-10-31 4:20 ` Patrick Finnegan
2002-10-31 4:25 ` Christoph Hellwig
2002-10-31 4:31 ` Patrick Finnegan
2002-10-31 5:13 ` Dax Kelson
2002-10-31 6:07 ` [PATCH] kexec for 2.5.45 Eric W. Biederman
2002-10-31 6:25 ` What's left over Matt D. Robinson
2002-10-31 15:46 ` Linus Torvalds
2002-10-31 17:10 ` Patrick Finnegan
2002-10-31 17:13 ` Michael Shuey
2002-10-31 19:04 ` Alan Cox
2002-10-31 19:42 ` Michael Shuey
2002-11-01 22:25 ` Pavel Machek
2002-11-02 13:30 ` Michael Shuey
2002-10-31 17:18 ` Matt D. Robinson
2002-10-31 17:25 ` Linus Torvalds
2002-10-31 17:54 ` Matt D. Robinson
2002-10-31 17:54 ` Linus Torvalds
2002-10-31 18:21 ` Patrick Finnegan
2002-10-31 18:31 ` John Alvord
2002-11-02 23:44 ` Horst von Brand
2002-11-03 1:14 ` Matt D. Robinson
2002-10-31 18:10 ` Chris Friesen
2002-10-31 18:22 ` Linus Torvalds
2002-10-31 20:59 ` Dave Anderson
2002-10-31 21:49 ` Oliver Xymoron
2002-11-01 1:25 ` [lkcd-devel] " Matt D. Robinson
2002-11-01 6:34 ` Bill Davidsen
2002-11-01 13:26 ` Alan Cox
2002-11-01 19:00 ` Joel Becker
2002-11-01 19:18 ` Linus Torvalds
2002-11-01 20:06 ` Steven King
2002-11-02 5:17 ` Bill Davidsen
2002-11-02 5:36 ` Zwane Mwaikambo
2002-11-03 14:08 ` Bill Davidsen
2002-11-02 15:29 ` Alan Cox
2002-11-03 1:24 ` [lkcd-general] " Matt D. Robinson
2002-11-03 1:49 ` Alan Cox
2002-11-03 9:34 ` [lkcd-devel] " Matt D. Robinson
2002-11-03 14:33 ` Bill Davidsen
2002-11-03 15:34 ` Bernd Eckenfels
2002-11-03 16:32 ` Alan Cox
2002-11-03 17:08 ` [lkcd-devel] " Matt D. Robinson
2002-11-05 18:07 ` Bill Davidsen
2002-11-03 3:10 ` Christoph Hellwig
2002-11-01 20:21 ` David Lang
2002-11-01 22:25 ` Werner Almesberger
2002-11-01 22:42 ` Karim Yaghmour
2002-11-01 22:54 ` Werner Almesberger
2002-11-01 23:10 ` Karim Yaghmour
2002-11-01 20:22 ` [lkcd-devel] " Matt D. Robinson
2002-11-02 13:02 ` Kai Henningsen
2002-11-01 20:37 ` Hugh Dickins
2002-11-02 18:23 ` Geert Uytterhoeven
2002-11-03 2:25 ` Horst von Brand
2002-11-04 16:18 ` Hugh Dickins
2002-11-03 13:48 ` Bill Davidsen
2002-11-03 14:26 ` yodaiken
2002-11-05 17:09 ` Bill Davidsen
2002-11-05 17:36 ` yodaiken
2002-11-04 2:44 ` [lkcd-general] " Jennie Haywood
2002-11-04 14:45 ` Henning P. Schmiedehausen
2002-11-04 15:29 ` Alan Cox
2002-11-04 15:27 ` Henning P. Schmiedehausen
2002-11-04 15:38 ` Patrick Finnegan
2002-11-04 16:51 ` Henning P. Schmiedehausen
2002-11-05 4:57 ` Werner Almesberger
2002-10-31 18:50 ` Alan Cox
2002-10-31 21:33 ` Rusty Russell
2002-11-01 1:19 ` [lkcd-devel] " Matt D. Robinson
2002-11-01 2:59 ` Rusty Russell
2002-10-31 18:15 ` Andrew Morton
2002-10-31 19:58 ` Bernhard Kaindl
2002-11-02 0:49 ` What's left over. - Dave's crash code supports a gdb interface for LKCD crash dumps Piet Delaney
2002-10-31 18:16 ` What's left over Oliver Xymoron
2002-10-31 18:26 ` Linus Torvalds
2002-10-31 18:49 ` Rik van Riel
2002-10-31 21:02 ` Jeff Garzik
2002-10-31 22:37 ` Werner Almesberger
2002-11-05 11:42 ` [lkcd-devel] " Suparna Bhattacharya
2002-11-05 18:00 ` Werner Almesberger
2002-11-05 18:36 ` Alan Cox
2002-11-05 19:19 ` Werner Almesberger
2002-11-05 20:10 ` Alan Cox
2002-11-05 23:25 ` Werner Almesberger
2002-11-06 0:21 ` Andy Pfiffer
2002-11-06 1:10 ` Werner Almesberger
2002-11-06 1:37 ` Alexander Viro
2002-11-06 2:05 ` Werner Almesberger
2002-11-07 6:04 ` Eric W. Biederman
2002-11-07 12:17 ` Werner Almesberger
2002-11-06 4:07 ` Eric W. Biederman
2002-11-06 4:47 ` Eric W. Biederman
2002-11-06 19:24 ` Rob Landley
2002-11-10 18:35 ` Pavel Machek
2002-11-06 2:48 ` Eric W. Biederman
2002-11-06 4:29 ` Eric W. Biederman
2002-11-06 6:25 ` Linus Torvalds
2002-11-06 6:38 ` Suparna Bhattacharya
2002-11-06 7:48 ` Eric W. Biederman
2002-11-06 9:11 ` Suparna Bhattacharya
2002-11-06 22:05 ` Michal Jaegermann
2002-11-06 16:13 ` Eric W. Biederman
2002-11-07 8:50 ` Eric W. Biederman
2002-11-07 15:44 ` Linus Torvalds
2002-11-09 23:05 ` Eric W. Biederman
2002-11-09 23:33 ` Linus Torvalds
2002-11-10 1:37 ` Eric W. Biederman
2002-11-10 2:12 ` Alan Cox
2002-11-10 2:16 ` Eric W. Biederman
2002-11-10 3:03 ` Werner Almesberger
2002-11-10 3:23 ` Eric W. Biederman
2002-11-10 14:30 ` Alan Cox
2002-11-10 16:56 ` Eric W. Biederman
2002-11-10 3:17 ` Linus Torvalds
2002-11-10 4:26 ` Eric W. Biederman
2002-11-10 18:07 ` Kexec 2.5.46-b6 Eric W. Biederman
2002-11-11 18:03 ` [lkcd-devel] Re: What's left over Eric W. Biederman
2002-11-11 18:15 ` Kexec for v2.5.47 Eric W. Biederman
2002-11-11 22:52 ` Kexec for v2.5.47 (test feedback) Andy Pfiffer
2002-11-12 7:22 ` Eric W. Biederman
2002-11-13 0:48 ` Andy Pfiffer
2002-11-13 4:16 ` Eric W. Biederman
2002-11-13 13:26 ` Kexec for v2.5.47-bk2 Eric W. Biederman
2002-11-15 9:24 ` Suparna Bhattacharya
2002-11-15 14:14 ` Eric W. Biederman
2002-11-15 14:37 ` Werner Almesberger
2002-11-20 9:44 ` Suparna Bhattacharya
2002-11-20 17:28 ` Eric W. Biederman
2002-11-18 0:07 ` [ANNOUNCE] kexec-tools-1.6 released Eric W. Biederman
2002-11-18 5:46 ` Eric W. Biederman
2002-11-18 8:53 ` [ANNOUNCE][CFT] kexec for v2.5.48 && kexec-tools-1.7 Eric W. Biederman
2002-11-19 1:10 ` [ANNOUNCE][CFT] kexec for v2.5.48 && kexec-tools-1.7 -- Success Story! Andy Pfiffer
2002-11-19 10:25 ` Eric W. Biederman
2002-11-19 17:21 ` Andy Pfiffer [this message]
2002-11-19 17:34 ` Eric W. Biederman
2002-11-19 18:17 ` Martin J. Bligh
2002-11-20 9:19 ` Eric W. Biederman
2002-11-19 19:29 ` Andy Pfiffer
2002-11-20 8:49 ` Suparna Bhattacharya
2002-11-20 9:17 ` Eric W. Biederman
2002-11-20 11:59 ` Suparna Bhattacharya
2002-11-20 15:05 ` Werner Almesberger
2002-11-20 16:48 ` Eric W. Biederman
2002-11-19 2:15 ` [ANNOUNCE][CFT] kexec for v2.5.48 && kexec-tools-1.7 Dave Hansen
2002-11-19 10:13 ` Eric W. Biederman
2002-11-19 15:28 ` Martin J. Bligh
2002-11-19 17:44 ` Eric W. Biederman
2002-11-19 16:24 ` Dave Hansen
2002-11-19 17:33 ` Linus Torvalds
2002-11-19 17:48 ` Eric W. Biederman
2002-11-19 17:54 ` Dave Jones
2002-11-19 17:42 ` Eric W. Biederman
2002-12-02 4:41 ` [ANNOUNCE] kexec-tools-1.8 Eric W. Biederman
2002-12-03 2:30 ` Dave Hansen
2002-12-03 7:35 ` Eric W. Biederman
2002-12-13 2:00 ` Dave Hansen
2002-12-02 15:54 ` Eric W. Biederman
2002-11-09 23:39 ` [lkcd-devel] Re: What's left over Randy.Dunlap
2002-11-10 2:58 ` Eric W. Biederman
2002-11-10 14:35 ` Alan Cox
2002-11-10 18:13 ` Eric W. Biederman
2002-11-10 1:31 ` Werner Almesberger
2002-11-10 3:10 ` Eric W. Biederman
2002-11-10 3:30 ` Werner Almesberger
2002-11-10 3:49 ` Eric W. Biederman
2002-11-10 3:49 ` Linus Torvalds
2002-11-10 2:08 ` Alan Cox
2002-11-10 2:18 ` Eric W. Biederman
2002-11-10 14:31 ` Alan Cox
2002-11-07 15:48 ` Linus Torvalds
2002-11-07 19:32 ` kexec (was: [lkcd-devel] Re: What's left over.) Andy Pfiffer
2002-11-07 22:13 ` Andy Pfiffer
2002-11-07 22:56 ` Werner Almesberger
2002-11-11 17:03 ` Bill Davidsen
[not found] ` <200211080536.31287.landley@trommello.org>
2002-11-11 17:58 ` Andy Pfiffer
2002-11-11 18:25 ` Eric W. Biederman
2002-11-08 18:01 ` [lkcd-devel] Re: What's left over Alan Cox
2002-11-09 21:21 ` Pavel Machek
2002-11-11 16:27 ` Eric W. Biederman
2002-11-01 1:35 ` Matt D. Robinson
2002-11-01 2:06 ` Jeff Garzik
2002-11-01 3:46 ` Matt D. Robinson
2002-11-01 4:45 ` Linus Torvalds
2002-11-01 4:57 ` Patrick Finnegan
2002-11-01 9:18 ` Henning P. Schmiedehausen
2002-11-01 14:55 ` Patrick Finnegan
2002-11-01 15:16 ` Alexander Viro
2002-11-01 15:27 ` Patrick Finnegan
2002-11-01 16:16 ` Patrick Finnegan
2002-11-01 16:32 ` Larry McVoy
2002-11-01 16:44 ` Linux without Linus was " Brian Jackson
2002-11-01 16:58 ` Paul Fulghum
2002-11-01 19:14 ` Shawn
2002-11-01 19:36 ` Shawn
2002-11-01 17:56 ` Nicolas Pitre
2002-11-01 18:23 ` Shane R. Stixrud
2002-11-01 19:18 ` John Alvord
2002-11-04 2:13 ` Rob Landley
2002-11-04 14:58 ` Patrick Finnegan
2002-11-04 12:59 ` Rob Landley
2002-11-01 15:32 ` Richard B. Johnson
2002-11-01 13:30 ` Alan Cox
2002-11-01 22:28 ` Rusty Russell
2002-11-01 6:27 ` Bill Davidsen
2002-11-01 6:36 ` Linus Torvalds
2002-11-01 7:00 ` [lkcd-devel] " Castor Fu
2002-11-01 8:23 ` Craig I. Hagan
2002-11-01 14:03 ` Patrick Finnegan
2002-11-02 4:57 ` Bill Davidsen
2002-11-01 13:28 ` Alan Cox
2002-11-02 5:00 ` Bill Davidsen
2002-11-02 15:30 ` Alan Cox
2002-11-02 18:55 ` Arnaldo Carvalho de Melo
2002-11-02 19:19 ` romieu
2002-11-02 19:21 ` Arnaldo Carvalho de Melo
2002-11-02 19:32 ` romieu
2002-11-02 19:42 ` Arnaldo Carvalho de Melo
2002-11-02 20:23 ` romieu
2002-11-02 20:31 ` Alan Cox
2002-11-02 20:12 ` Arnaldo Carvalho de Melo
2002-11-01 9:20 ` Henning P. Schmiedehausen
2002-11-01 13:29 ` Alan Cox
2002-10-31 22:20 ` Shawn
2002-10-31 23:14 ` [lkcd-general] " Bernhard Kaindl
2002-11-01 2:01 ` Matt D. Robinson
2002-11-02 10:36 ` Brad Hards
2002-11-02 19:28 ` [lkcd-devel] " Matt D. Robinson
2002-10-31 17:55 ` [lkcd-general] " Dave Craft
2002-10-31 18:45 ` Patrick Mochel
2002-10-31 19:16 ` Stephen Hemminger
2002-10-31 19:57 ` george anzinger
2002-10-31 20:48 ` Stephen Hemminger
2002-10-31 19:33 ` [lkcd-devel] " Castor Fu
2002-10-31 7:46 ` Ville Herva
2002-10-31 9:23 ` Geert Uytterhoeven
2002-10-31 9:39 ` Ville Herva
2002-10-31 10:16 ` Trever L. Adams
2002-10-31 18:08 ` Nicholas Wourms
2002-10-31 13:36 ` mbs
2002-10-31 14:21 ` Chris Friesen
2002-10-31 14:52 ` Suparna Bhattacharya
2002-10-31 16:37 ` Henning P. Schmiedehausen
2002-11-01 0:52 ` James Simmons
2002-11-01 10:24 ` What's left over. (Fbdev rewrite) Helge Hafting
2002-11-05 17:29 ` kexec (was: Re: What's left over.) Werner Almesberger
2002-11-05 18:10 ` Benjamin LaHaise
2002-11-05 19:06 ` Martin J. Bligh
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