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From: "H. Peter Anvin" <hpa@zytor.com>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andi Kleen <ak@suse.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	virtualization@lists.osdl.org,
	lkml <linux-kernel@vger.kernel.org>,
	Zachary Amsden <zach@vmware.com>,
	Chris Wright <chrisw@sous-sol.org>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH 10/28] i386: map enough initial memory to create lowmem mappings
Date: Sat, 14 Apr 2007 15:04:03 -0700	[thread overview]
Message-ID: <46214FD3.3080400@zytor.com> (raw)
In-Reply-To: <20070414204924.125386443@goop.org>

Jeremy Fitzhardinge wrote:
> -
> +LOW_PAGES = 1<<(32-PAGE_SHIFT_asm)
> +

Again, for debugging... it would be interesting to replace this with:

LOW_PAGES = (0x100000000-__PAGE_OFFSET) >> PAGE_SHIFT_asm

... to smoke out further problems; this will take the strict definition 
of "lowmem" (modulo the pci region, which someone unwisely made 
dynamically adjustable... which would have been fine if initramfs could 
live in highmem, which it can't yet.)

	-hpa

  reply	other threads:[~2007-04-14 22:04 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-14 20:41 [PATCH 00/28] Updates for firstfloor paravirt-ops patches Jeremy Fitzhardinge
2007-04-14 20:41 ` [PATCH 01/28] revert account-for-module-percpu-space-separately-from-kernel-percpu Jeremy Fitzhardinge
2007-04-14 20:41 ` [PATCH 02/28] Account for module percpu space separately from kernel percpu Jeremy Fitzhardinge
2007-04-14 20:41 ` [PATCH 03/28] fix allow-percpu-variables-to-be-page-aligned.patch Jeremy Fitzhardinge
2007-04-14 20:41 ` [PATCH 04/28] deflate stack usage in lib/inflate.c Jeremy Fitzhardinge
2007-04-14 20:41 ` [PATCH 05/28] Page-align the GDT Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 06/28] Convert PDA into the percpu section Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 07/28] cleanups to help using per-cpu variables from asm Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 08/28] Define per_cpu_offset Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 09/28] Fix UP gdt bugs Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 10/28] i386: map enough initial memory to create lowmem mappings Jeremy Fitzhardinge
2007-04-14 22:04   ` H. Peter Anvin [this message]
2007-04-15  9:46     ` Jan Engelhardt
2007-04-15 10:17       ` Andreas Schwab
2007-04-19 20:47   ` Chuck Ebbert
2007-04-19 20:50     ` Andi Kleen
2007-04-19 20:55       ` H. Peter Anvin
2007-04-19 21:04         ` Andi Kleen
2007-04-19 21:11           ` H. Peter Anvin
2007-04-19 21:22             ` Chuck Ebbert
2007-04-19 21:35               ` Jeremy Fitzhardinge
2007-04-23  9:12                 ` Eric W. Biederman
2007-04-23 16:01                   ` H. Peter Anvin
2007-04-23 16:34                   ` Jeremy Fitzhardinge
2007-04-23 16:42                     ` H. Peter Anvin
2007-04-23 17:02                       ` Jeremy Fitzhardinge
2007-04-23 17:22                         ` H. Peter Anvin
2007-04-23 18:00                           ` Eric W. Biederman
2007-04-23 17:31                         ` Eric W. Biederman
2007-04-23 17:45                           ` H. Peter Anvin
2007-04-23 17:52                             ` Eric W. Biederman
2007-04-23 17:54                             ` Andi Kleen
2007-04-23 17:21                       ` Eric W. Biederman
2007-04-23 18:06                         ` Jeremy Fitzhardinge
2007-04-23 18:54                           ` Eric W. Biederman
2007-04-23 19:10                             ` Jeremy Fitzhardinge
2007-04-23 19:14                               ` H. Peter Anvin
2007-04-23 19:21                                 ` Jeremy Fitzhardinge
2007-04-23 19:39                                   ` Eric W. Biederman
2007-04-23 20:41                                     ` H. Peter Anvin
2007-04-25 20:54                 ` Eric W. Biederman
2007-04-25 21:31                   ` Jeremy Fitzhardinge
2007-04-25 22:00                     ` Eric W. Biederman
2007-04-25 22:06                       ` Jeremy Fitzhardinge
2007-04-25 22:18                         ` Eric W. Biederman
2007-04-25 22:52                           ` Jeremy Fitzhardinge
2007-04-25 23:33                             ` Eric W. Biederman
2007-04-25 23:41                               ` Jeremy Fitzhardinge
2007-04-26  0:33                                 ` Chris Wright
2007-04-26  0:55                                   ` Jeremy Fitzhardinge
2007-04-29 16:44                         ` Eric W. Biederman
2007-04-29 16:55                           ` Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 11/28] x86: incremental update for i386 and x86-64 check_bugs Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 12/28] i386: now its ok to use identify_boot_cpu Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 13/28] paravirt: flush lazy mmu updates on kunmap_atomic Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 14/28] fix paravirt-documentation Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 15/28] In compat mode, the return value here was uninitialized Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 16/28] kRemove a warning about unused variable in !CONFIG_ACPI compilation Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 17/28] x86: cleanup arch/i386/kernel/cpu/mcheck/p4.c Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 18/28] Copying of the pgd range must happen under the pgd_lock Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 19/28] Dont implement native_kmap_atomic_pte for !HIGHPTE Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 20/28] Now that the VDSO can be relocated, we can support it in VMI configurations Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 21/28] Implement vmi_kmap_atomic_pte Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 22/28] Convert VMI timer to use clock events Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 23/28] Fix BusLogic to stop using check_region Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 24/28] paravirt: drop unused ptep_get_and_clear Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 25/28] From: Jeremy Fitzhardinge <jeremy@goop.org> Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 26/28] From: Andrew Morton <akpm@linux-foundation.org> Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 27/28] paravirt: little compile fixes for vmi.c Jeremy Fitzhardinge
2007-04-14 20:42 ` [PATCH 28/28] Add a sched_clock paravirt_op Jeremy Fitzhardinge

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