Re: Reserved memory

[david parsons]

In article <[e-mail]>,
Rui Sousa  <[e-mail]> wrote:
>Hi,
>
>Can someone explain me what is happening here?
>
>kernel 2.2.14 SMP:
>
>Jan 25 01:03:45 localhost kernel:
>Memory: 128392k/131072k available (692k kernel code, 424k reserved, 1516k data,
>48k init)
>
>kernel 2.3.42 SMP:
>
>Feb  3 18:48:29 localhost kernel: e820: 0009fc00 @ 00000000 (usable) 
>Feb  3 18:48:29 localhost kernel: e820: 00000400 @ 0009fc00 (reserved) 
>Feb  3 18:48:29 localhost kernel: e820: 00020000 @ 000e0000 (reserved) 
>Feb  3 18:48:29 localhost kernel: e820: 07f00000 @ 00100000 (usable) 
>Feb  3 18:48:29 localhost kernel: e820: 00001000 @ fec00000 (reserved) 
>Feb  3 18:48:29 localhost kernel: e820: 00001000 @ fee00000 (reserved) 
>Feb  3 18:48:29 localhost kernel: e820: 00040000 @ fffc0000 (reserved) 

    This reserved memory is memory that's reserved by the bios; it's
    either rom (009fc00->00a0000, 00e0000->0fffff are likely that)
    or ACPI tables and configuration data.   I don't believe that this
    reserved memory is even counted in the the Memory: message.

                  ____
    david parsons \bi/   though I've been narrowly focusing on the mechanics
                   \/  of the memory detection to the exclusion of all other
		                                           kernel-side stuff.