lkml.org 
[lkml]   [2008]   [Apr]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] x86_32: trim memory by updating e820 v3
Mika Fischer wrote:
> Yinghai Lu schrieb:
>>>> you should get
>>>>> reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1
>>>>> reg01: base=0x80000000 (2048MB), size=1024MB: write-back, count=1
>>>>> reg02: base=0xbf700000 (3063MB), size= 1MB: uncachable, count=1
>>>>> reg03: base=0xbf800000 (3064MB), size= 8MB: uncachable, count=1
>>>>> reg04: base=0x100000000 (4096MB), size=1024MB: write-back, count=1
>> please check
>> http://lkml.org/lkml/2008/4/28/115
>
> OK, this time it worked!
>
> With mtrr_chunk_size=1g:
> reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1
> reg01: base=0x80000000 (2048MB), size=1024MB: write-back, count=1
> reg02: base=0xbf700000 (3063MB), size= 1MB: uncachable, count=1
> reg03: base=0xbf800000 (3064MB), size= 8MB: uncachable, count=1
> reg04: base=0x100000000 (4096MB), size=1024MB: write-back, count=1
>
> Without mtrr_chunk_size=1g:
> reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1
> reg01: base=0x80000000 (2048MB), size= 512MB: write-back, count=1
> reg02: base=0xa0000000 (2560MB), size= 256MB: write-back, count=1
> reg03: base=0xb0000000 (2816MB), size= 256MB: write-back, count=1
> reg04: base=0xbf700000 (3063MB), size= 1MB: uncachable, count=1
> reg05: base=0xbf800000 (3064MB), size= 8MB: uncachable, count=1
> reg06: base=0x100000000 (4096MB), size=1024MB: write-back, count=1
>
> Both seem equivalent and correct.
>
> There are also no warnings anymore in the dmesg output:
> With mtrr_chunk_size=1g:
> http://bugzilla.kernel.org/attachment.cgi?id=15950
>
> Without mtrr_chunk_size=1g:
> http://bugzilla.kernel.org/attachment.cgi?id=15951
>
>> also, can you try 64bit too?
>
> I'm not sure how to do this. Can I compile it under 32bit Linux? If not that
> will be difficult since I don't have space left for a 64bit installation on my
> hard-drive. Maybe Gabiel C can test 64bit?

Yes sure, done already :) I could test 32/64 bit on this box if needed.

>
> Regards,
> Mika

Gabriel


\
 
 \ /
  Last update: 2008-04-28 12:01    [W:0.086 / U:0.904 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site