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Re: [PATCH] [4/7] Don't use large pages to map the first 2/4MB of memory

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From: Andi Kleen
Subject: Re: [PATCH] [4/7] Don't use large pages to map the first 2/4MB of memory
Date: Wednesday, March 12, 2008 - 2:19 am

> Should we then change CONFIG_PHYSICAL_START from 0x100000 to 0x400000 ?

Yes that would be probably a good idea. This means for PAE and 64bit
kernels 2MB is ok too, for i386 non PAE 4MB. The SUSE 64bit kernels have been 
using that for quite some time.

-Andi
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[PATCH] [1/7] Implement true end_pfn_mapped for 32bit, Andi Kleen, (Tue Mar 11, 7:53 pm)
[PATCH] [2/7] Account overlapped mappings in end_pfn_map, Andi Kleen, (Tue Mar 11, 7:53 pm)
[PATCH] [3/7] Add set_memory_4k to pageattr.c, Andi Kleen, (Tue Mar 11, 7:53 pm)
[PATCH] [4/7] Don't use large pages to map the first 2/4MB ..., Andi Kleen, (Tue Mar 11, 7:53 pm)
[PATCH] [5/7] Readd rdmsrl_safe, Andi Kleen, (Tue Mar 11, 7:53 pm)
[PATCH] [6/7] Split large page mapping for AMD TSEG, Andi Kleen, (Tue Mar 11, 7:53 pm)
[PATCH] [7/7] CPA: Add statistics about state of direct ma ..., Andi Kleen, (Tue Mar 11, 7:53 pm)
Re: [PATCH] [4/7] Don't use large pages to map the first 2 ..., Eric Dumazet, (Tue Mar 11, 10:38 pm)
Re: [PATCH] [4/7] Don't use large pages to map the first 2 ..., Andi Kleen, (Wed Mar 12, 2:19 am)
Re: [PATCH] [5/7] Readd rdmsrl_safe, Thomas Gleixner, (Fri Mar 21, 10:06 am)
Re: [PATCH] [5/7] Readd rdmsrl_safe, Andi Kleen, (Fri Mar 21, 10:16 am)
Re: [PATCH] [7/7] CPA: Add statistics about state of direc ..., Thomas Gleixner, (Fri Mar 21, 10:41 am)
Re: [PATCH] [4/7] Don't use large pages to map the first 2 ..., Thomas Gleixner, (Fri Mar 21, 10:45 am)
Re: [PATCH] [7/7] CPA: Add statistics about state of direc ..., Andi Kleen, (Fri Mar 21, 10:55 am)
Re: [PATCH] [6/7] Split large page mapping for AMD TSEG, Thomas Gleixner, (Fri Mar 21, 10:55 am)
Re: [PATCH] [5/7] Readd rdmsrl_safe, Thomas Gleixner, (Fri Mar 21, 10:58 am)
Re: [PATCH] [4/7] Don't use large pages to map the first 2 ..., Andi Kleen, (Fri Mar 21, 10:59 am)
Re: [PATCH] [4/7] Don't use large pages to map the first 2 ..., Thomas Gleixner, (Fri Mar 21, 11:03 am)
Re: [PATCH] [5/7] Readd rdmsrl_safe, Andi Kleen, (Fri Mar 21, 11:06 am)
Re: [PATCH] [5/7] Readd rdmsrl_safe, Thomas Gleixner, (Fri Mar 21, 11:14 am)
Re: [PATCH] [4/7] Don't use large pages to map the first 2 ..., Andi Kleen, (Fri Mar 21, 11:44 am)
Re: [PATCH] [5/7] Readd rdmsrl_safe, Andi Kleen, (Fri Mar 21, 11:46 am)
Re: [PATCH] [5/7] Readd rdmsrl_safe II, Andi Kleen, (Fri Mar 21, 11:48 am)
[PATCH] CPA: Add statistics about state of direct mapping v3, Andi Kleen, (Sat Mar 22, 2:50 am)
[PATCH] Readd rdmsrl_safe v2, Andi Kleen, (Sat Mar 22, 2:59 am)
Re: [PATCH] [4/7] Don't use large pages to map the first 2 ..., Joerg Roedel, (Tue Mar 25, 4:31 am)
Re: [PATCH] [4/7] Don't use large pages to map the first 2 ..., Andi Kleen, (Tue Mar 25, 4:39 am)
Re: [PATCH] [6/7] Split large page mapping for AMD TSEG, Joerg Roedel, (Tue Mar 25, 4:56 am)
Re: [PATCH] CPA: Add statistics about state of direct mapp ..., Thomas Gleixner, (Tue Mar 25, 8:40 am)
Re: [PATCH] CPA: Add statistics about state of direct mapp ..., Andi Kleen, (Tue Mar 25, 9:14 am)
Re: [PATCH] CPA: Add statistics about state of direct mapp ..., Thomas Gleixner, (Tue Mar 25, 9:16 am)
Re: [PATCH] [6/7] Split large page mapping for AMD TSEG, Thomas Gleixner, (Tue Mar 25, 9:44 am)
Re: [PATCH] [6/7] Split large page mapping for AMD TSEG, Andi Kleen, (Tue Mar 25, 9:54 am)
Re: [PATCH] CPA: Add statistics about state of direct mapp ..., Andi Kleen, (Tue Mar 25, 10:01 am)