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Re: [PATCH for review] [7/48] i386: divorce CONFIG_X86_PAE from CONFIG_HIGHMEM64G

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From: Dave Jones <davej@...>
To: Andi Kleen <ak@...>
Cc: <wli@...>, <lkml@...>, <linux-kernel@...>
Subject: Re: [PATCH for review] [7/48] i386: divorce CONFIG_X86_PAE from CONFIG_HIGHMEM64G
Date: Thursday, July 19, 2007 - 10:46 am

On Thu, Jul 19, 2007 at 03:48:36PM +0200, Andi Kleen wrote:
 
 > Some users may want NX
 > or expanded swapspace support without the overhead or instability of
 > highmem. 

NX is still going to need the larger PTEs, so I don't see how this
change removes any 'overhead' or potential 'instability'.
I'm not necessarily disagreeing with the change, but this part
of the changelog seems to be false advertising.

	Dave

-- 
http://www.codemonkey.org.uk
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Messages in current thread:
[PATCH for review] [0/48] Second batch of x86 patches for .23, Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [36/48] x86_64: k8topology add family 10h..., Andi Kleen, (Thu Jul 19, 9:49 am)
[PATCH for review] [38/48] x86_64: Put allocated ELF notes i..., Andi Kleen, (Thu Jul 19, 9:49 am)
[PATCH for review] [37/48] x86_64: make k8topology multi-cor..., Andi Kleen, (Thu Jul 19, 9:49 am)
[PATCH for review] [33/48] i386: remove old IRQ balancing de..., Andi Kleen, (Thu Jul 19, 9:49 am)
[PATCH for review] [31/48] i386: basic infrastructure suppor..., Andi Kleen, (Thu Jul 19, 9:49 am)
[PATCH for review] [35/48] x86_64: remove __smp_alt* sections, Andi Kleen, (Thu Jul 19, 9:49 am)
[PATCH for review] [34/48] i386: Update alignment when 4K st..., Andi Kleen, (Thu Jul 19, 9:49 am)
[PATCH for review] [32/48] i386: insert HPET firmware resour..., Andi Kleen, (Thu Jul 19, 9:49 am)
[PATCH for review] [22/48] x86_64: fix e820_hole_size based ..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [28/48] i386: fix iounmap's use of vm_str..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [30/48] x86_64: arch/x86_64/kernel/e820.c..., Andi Kleen, (Thu Jul 19, 9:49 am)
[PATCH for review] [27/48] i386: move PIT function declarati..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [20/48] i386: replace hard-coded constant..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [24/48] x86_64: move iommu declaration fr..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [29/48] x86_64: arch/x86_64/kernel/apertu..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [23/48] x86_64: disable srat when numa em..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [18/48] x86_64: flush_tlb_kernel_range() ..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [19/48] i386: add cpu_relax() to cmos_loc..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [26/48] i386: hpet assumes boot cpu is 0, Andi Kleen, (Thu Jul 19, 9:48 am)
Re: [PATCH for review] [26/48] i386: hpet assumes boot cpu i..., Jeremy Fitzhardinge, (Thu Jul 19, 12:23 pm)
[PATCH for review] [25/48] i386: remove volatile in apic.c, Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [21/48] x86_64: disable the GART in shutd..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [16/48] x86_64: Geode HW Random Number Ge..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [12/48] x86_64: use the global PIT lock, Andi Kleen, (Thu Jul 19, 9:48 am)
Re: [PATCH for review] [12/48] x86_64: use the global PIT lock, Dmitry Torokhov, (Thu Jul 19, 11:22 am)
Re: [PATCH for review] [12/48] x86_64: use the global PIT lock, Andi Kleen, (Thu Jul 19, 1:29 pm)
Re: [PATCH for review] [12/48] x86_64: use the global PIT lock, Dmitry Torokhov, (Thu Jul 19, 3:23 pm)
Re: [PATCH for review] [12/48] x86_64: use the global PIT lock, Andi Kleen, (Thu Jul 19, 3:52 pm)
Re: [PATCH for review] [12/48] x86_64: use the global PIT lock, Dmitry Torokhov, (Fri Jul 20, 12:24 am)
Re: [PATCH for review] [12/48] x86_64: use the global PIT lock, Andi Kleen, (Fri Jul 20, 4:25 am)
Re: [PATCH for review] [12/48] x86_64: use the global PIT lock, Dmitry Torokhov, (Fri Jul 20, 8:50 am)
[PATCH for review] [17/48] x86_64: change _map_single to sta..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [15/48] x86_64: fix wrong comment regardi..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [14/48] x86_64: lower printk severity, Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [13/48] x86_64: fix typo in acpi_pm.c, Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [8/48] i386: Remove unneeded test of 'tas..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [3/48] i386: do not restore reserved memo..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [10/48] x86_64: Move functions declaratio..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [7/48] i386: divorce CONFIG_X86_PAE from ..., Andi Kleen, (Thu Jul 19, 9:48 am)
Re: [PATCH for review] [7/48] i386: divorce CONFIG_X86_PAE f..., Christoph Hellwig, (Thu Jul 19, 10:52 am)
Re: [PATCH for review] [7/48] i386: divorce CONFIG_X86_PAE f..., William Lee Irwin III, (Thu Jul 19, 8:45 pm)
Re: [PATCH for review] [7/48] i386: divorce CONFIG_X86_PAE f..., Dave Jones, (Thu Jul 19, 10:46 am)
Re: [PATCH for review] [7/48] i386: divorce CONFIG_X86_PAE f..., Andi Kleen, (Thu Jul 19, 1:06 pm)
[PATCH for review] [9/48] i386: move the kernel to 16MB for ..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [4/48] i386: DMI_MATCH patch in reboot.c ..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [11/48] x86_64: During VM oom condition, ..., Andi Kleen, (Thu Jul 19, 9:48 am)
Re: [PATCH for review] [11/48] x86_64: During VM oom conditi..., Christoph Hellwig, (Thu Jul 19, 10:04 am)
Re: [PATCH for review] [11/48] x86_64: During VM oom conditi..., Geert Uytterhoeven, (Thu Jul 19, 10:14 am)
[PATCH respin, was PATCH for review] During VM oom condition..., Will Schmidt, (Mon Jul 23, 2:09 pm)
Re: [PATCH respin, was PATCH for review] During VM oom condi..., Pavel Machek, (Tue Jul 31, 5:31 am)
Re: [PATCH respin, was PATCH for review] During VM oom condi..., Will Schmidt, (Tue Jul 31, 10:55 am)
Re: [PATCH respin, was PATCH for review] During VM oom condi..., Andrew Morton, (Mon Jul 23, 5:16 pm)
Re: [PATCH respin, was PATCH for review] During VM oom condi..., Will Schmidt, (Tue Jul 24, 10:28 am)
Re: [PATCH respin, was PATCH for review] During VM oom condi..., Christoph Hellwig, (Tue Jul 24, 10:31 am)
Re: [PATCH for review] [11/48] x86_64: During VM oom conditi..., Will Schmidt, (Thu Jul 19, 11:03 am)
[PATCH for review] [6/48] x86: trim memory not covered by WB..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [5/48] i386: HPET, check if the counter w..., Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [1/48] i386: pgd_{c,d}tor() static, Andi Kleen, (Thu Jul 19, 9:48 am)
[PATCH for review] [2/48] i386: fix section mismatch warning..., Andi Kleen, (Thu Jul 19, 9:48 am)

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