All of lore.kernel.org
 help / color / mirror / Atom feed
From: Robert Hancock <hancockr@shaw.ca>
To: Reinaldo de Carvalho <reinaldow@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Another missing RAM on x86_64
Date: Wed, 06 Jun 2007 17:47:56 -0600	[thread overview]
Message-ID: <466747AC.1080606@shaw.ca> (raw)
In-Reply-To: <4667362A.8040200@gmail.com>

Reinaldo de Carvalho wrote:
> This laptop have a nVidia 10de:0244 with 256Mb of RAM. No shared memory.
> 
> 
> Reinaldo de Carvalho
> 
> 
> 
> 00:05.0 VGA compatible controller: nVidia Corporation C51 PCI Express 
> Bridge (rev a2) (prog-if 00 [VGA])
>         Subsystem: Hewlett-Packard Company Unknown device 30b5
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- 
> ParErr- Stepping- SERR- FastB2B-
>         Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- 
> <TAbort- <MAbort- >SERR- <PERR-
>         Latency: 0
>         Interrupt: pin A routed to IRQ 21
>         Region 0: Memory at c2000000 (32-bit, non-prefetchable) [size=16M]
>         Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M]
>         Region 3: Memory at c1000000 (64-bit, non-prefetchable) [size=16M]
>         [virtual] Expansion ROM at 50000000 [disabled] [size=128K]
>         Capabilities: [48] Power Management version 2
>                 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA 
> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>         Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+ 
> Queue=0/0 Enable-
>                 Address: 0000000000000000  Data: 0000

It's a bit mysterious, then, where the extra 40-some MB of RAM has gone. 
However, there's not much the kernel can do about it, as the BIOS is not 
telling us about that memory..

-- 
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/


  reply	other threads:[~2007-06-06 23:48 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <fa.tF0YmfAYyv6X2INP3hwTgQ2Z2Pw@ifi.uio.no>
2007-06-05  3:40 ` Another missing RAM on x86_64 Robert Hancock
2007-06-06 22:33   ` Reinaldo de Carvalho
2007-06-06 23:47     ` Robert Hancock [this message]
2007-06-05  2:20 Reinaldo de Carvalho

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=466747AC.1080606@shaw.ca \
    --to=hancockr@shaw.ca \
    --cc=linux-kernel@vger.kernel.org \
    --cc=reinaldow@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.