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Debian only sees 885.5 MiB memory

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Vieux 15/06/2007, 15h10   #1
Gary Rosenfeldt
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Par défaut Debian only sees 885.5 MiB memory

Hello,

I recently installed Debian Etch on my desktop system. My mobo is an
abit nf-7s with nforce2 chipset. I have 1 gig of ram installed but
debian only sees 885.5 MiB of my ram. Fortunately, I'm not
experiencing any stability issues. Anyone know the cause of this
oddity.

Thanks,

Gary


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  Réponse avec citation
Vieux 15/06/2007, 15h30   #2
Wei Chen
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Par défaut Re: Debian only sees 885.5 MiB memory

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Gary Rosenfeldt wrote:
> Hello,
>
> I recently installed Debian Etch on my desktop system. My mobo is an
> abit nf-7s with nforce2 chipset. I have 1 gig of ram installed but
> debian only sees 885.5 MiB of my ram. Fortunately, I'm not experiencing
> any stability issues. Anyone know the cause of this oddity.
>


You may check to see whether there is something like onboard graphics
card that takes the RAM.

- --
Cheers,

Wei Chen
http://www.acplex.com/people/wchen/
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=5y4B
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  Réponse avec citation
Vieux 15/06/2007, 17h40   #3
Nigel Henry
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Par défaut Re: Debian only sees 885.5 MiB memory

On Friday 15 June 2007 16:46, arijit sarkar wrote:
> On Fri, 2007-06-15 at 08:02 -0500, Gary Rosenfeldt wrote:
> > Hello,
> >
> > I recently installed Debian Etch on my desktop system. My mobo is an
> > abit nf-7s with nforce2 chipset. I have 1 gig of ram installed but
> > debian only sees 885.5 MiB of my ram. Fortunately, I'm not
> > experiencing any stability issues. Anyone know the cause of this
> > oddity.
> >
> > Thanks,
> >
> > Gary

>
> It's obvious, your motherboard has 128mb shared memory. So debian sess
> only 885.5 mb.
> I also have 1gig RAM and 128 mb as shared graphics memory. My 'system
> monitor' shows ~885mb.
> check out your BIOS settings. :-)
>
> --
> Arijit Sarkar
> Kolkata, India


That's interesting. I was booted up in Lenny using the 2.6.11 kernel, and
usually see Gkrellm showing 885Mb of my 1Gb RAM. I've since rebooted with the
2.6.17 kernel , and with that kernel, Gkrellm is showing the full 1005Mb of
RAM. The onboard graphics card is a Cyberbladei1 (trident driver).

Quite why booting with the 2.6.11 shows 885Mb, and booting with the 2.6.17
shows 1005Mb is a bit bizarre. Probably some kernel thingy.

Nigel.


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  Réponse avec citation
Vieux 15/06/2007, 18h40   #4
Bonnel Christophe
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Par défaut Re: Debian only sees 885.5 MiB memory

I remember an old option in kernel that asked you which size of ram you
think to be used. This option seems to have disappeared now.

If you want a 2.6.11 kernel, try to compile the kernel and search for
such an option...

Christophe

Nigel Henry a écrit :
> On Friday 15 June 2007 16:46, arijit sarkar wrote:
>
>> On Fri, 2007-06-15 at 08:02 -0500, Gary Rosenfeldt wrote:
>>
>>> Hello,
>>>
>>> I recently installed Debian Etch on my desktop system. My mobo is an
>>> abit nf-7s with nforce2 chipset. I have 1 gig of ram installed but
>>> debian only sees 885.5 MiB of my ram. Fortunately, I'm not
>>> experiencing any stability issues. Anyone know the cause of this
>>> oddity.
>>>
>>> Thanks,
>>>
>>> Gary
>>>

>> It's obvious, your motherboard has 128mb shared memory. So debian sess
>> only 885.5 mb.
>> I also have 1gig RAM and 128 mb as shared graphics memory. My 'system
>> monitor' shows ~885mb.
>> check out your BIOS settings. :-)
>>
>> --
>> Arijit Sarkar
>> Kolkata, India
>>

>
> That's interesting. I was booted up in Lenny using the 2.6.11 kernel, and
> usually see Gkrellm showing 885Mb of my 1Gb RAM. I've since rebooted with the
> 2.6.17 kernel , and with that kernel, Gkrellm is showing the full 1005Mb of
> RAM. The onboard graphics card is a Cyberbladei1 (trident driver).
>
> Quite why booting with the 2.6.11 shows 885Mb, and booting with the 2.6.17
> shows 1005Mb is a bit bizarre. Probably some kernel thingy.
>
> Nigel.
>
>
>



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  Réponse avec citation
Vieux 15/06/2007, 18h50   #5
charlie derr
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Hébergeur:
Par défaut Re: Debian only sees 885.5 MiB memory

I'm pretty sure the option is HIGHMEM -- grepping a 2.6.18 config file that I used to build a working kernel (that allows the
ability to access more than 885M of RAM) finds

# CONFIG_NOHIGHMEM is not set
CONFIG_HIGHMEM4G=y
# CONFIG_HIGHMEM64G is not set
CONFIG_HIGHMEM=y


hth,
~c


Bonnel Christophe wrote:
> I remember an old option in kernel that asked you which size of ram you
> think to be used. This option seems to have disappeared now.
>
> If you want a 2.6.11 kernel, try to compile the kernel and search for
> such an option...
>
> Christophe
>
> Nigel Henry a écrit :
>> On Friday 15 June 2007 16:46, arijit sarkar wrote:
>>
>>> On Fri, 2007-06-15 at 08:02 -0500, Gary Rosenfeldt wrote:
>>>
>>>> Hello,
>>>>
>>>> I recently installed Debian Etch on my desktop system. My mobo is an
>>>> abit nf-7s with nforce2 chipset. I have 1 gig of ram installed but
>>>> debian only sees 885.5 MiB of my ram. Fortunately, I'm not
>>>> experiencing any stability issues. Anyone know the cause of this
>>>> oddity.
>>>>
>>>> Thanks,
>>>>
>>>> Gary
>>>>
>>> It's obvious, your motherboard has 128mb shared memory. So debian sess
>>> only 885.5 mb.
>>> I also have 1gig RAM and 128 mb as shared graphics memory. My 'system
>>> monitor' shows ~885mb.
>>> check out your BIOS settings. :-)
>>>
>>> --
>>> Arijit Sarkar
>>> Kolkata, India
>>>

>>
>> That's interesting. I was booted up in Lenny using the 2.6.11 kernel,
>> and usually see Gkrellm showing 885Mb of my 1Gb RAM. I've since
>> rebooted with the 2.6.17 kernel , and with that kernel, Gkrellm is
>> showing the full 1005Mb of RAM. The onboard graphics card is a
>> Cyberbladei1 (trident driver).
>>
>> Quite why booting with the 2.6.11 shows 885Mb, and booting with the
>> 2.6.17 shows 1005Mb is a bit bizarre. Probably some kernel thingy.
>>
>> Nigel.
>>
>>
>>

>
>



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  Réponse avec citation
Vieux 15/06/2007, 19h40   #6
Nigel Henry
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Hébergeur:
Par défaut Re: Debian only sees 885.5 MiB memory

On Friday 15 June 2007 18:40, Bonnel Christophe wrote:
> I remember an old option in kernel that asked you which size of ram you
> think to be used. This option seems to have disappeared now.
>
> If you want a 2.6.11 kernel, try to compile the kernel and search for
> such an option...
>
> Christophe


It was mainly an observation between the 2 kernels. I don't particularly want
to use the 2.6.11, but the 2.6.17 uses udev, and is hit and miss as to the
ordering of my 2 devices that use /dev/video. Sometimes the TV card is set
as /dev/video0 (which is correct), and the webcam as /dev/video1 (also
correct). Othertimes these are inverted. I have no such problems with the
2.6.11 kernel, and as soon as I can find out the correct udev rule to write
to correct this problem with the 2.6.17 kernel I will use that kernel.

Anyway. That's for another thread.

Nigel.

<Read the stuff below first, then go to the top>
>
> Nigel Henry a écrit :
> > On Friday 15 June 2007 16:46, arijit sarkar wrote:
> >> On Fri, 2007-06-15 at 08:02 -0500, Gary Rosenfeldt wrote:
> >>> Hello,
> >>>
> >>> I recently installed Debian Etch on my desktop system. My mobo is an
> >>> abit nf-7s with nforce2 chipset. I have 1 gig of ram installed but
> >>> debian only sees 885.5 MiB of my ram. Fortunately, I'm not
> >>> experiencing any stability issues. Anyone know the cause of this
> >>> oddity.
> >>>
> >>> Thanks,
> >>>
> >>> Gary
> >>
> >> It's obvious, your motherboard has 128mb shared memory. So debian sess
> >> only 885.5 mb.
> >> I also have 1gig RAM and 128 mb as shared graphics memory. My 'system
> >> monitor' shows ~885mb.
> >> check out your BIOS settings. :-)
> >>
> >> --
> >> Arijit Sarkar
> >> Kolkata, India

> >
> > That's interesting. I was booted up in Lenny using the 2.6.11 kernel, and
> > usually see Gkrellm showing 885Mb of my 1Gb RAM. I've since rebooted with
> > the 2.6.17 kernel , and with that kernel, Gkrellm is showing the full
> > 1005Mb of RAM. The onboard graphics card is a Cyberbladei1 (trident
> > driver).
> >
> > Quite why booting with the 2.6.11 shows 885Mb, and booting with the
> > 2.6.17 shows 1005Mb is a bit bizarre. Probably some kernel thingy.
> >
> > Nigel.

  Réponse avec citation
Vieux 15/06/2007, 19h50   #7
Nigel Henry
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Hébergeur:
Par défaut Re: Debian only sees 885.5 MiB memory

On Friday 15 June 2007 18:42, charlie derr wrote:
> I'm pretty sure the option is HIGHMEM -- grepping a 2.6.18 config file that
> I used to build a working kernel (that allows the ability to access more
> than 885M of RAM) finds
>
> # CONFIG_NOHIGHMEM is not set
> CONFIG_HIGHMEM4G=y
> # CONFIG_HIGHMEM64G is not set
> CONFIG_HIGHMEM=y
>
>
> hth,
> ~c


That's confirmed by looking in /boot/config-2.6.11-1-386, which says.

CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set

Thanks for the info that explains all.

Nigel.

<Read the stuff below first, then go back to the top>
>
> Bonnel Christophe wrote:
> > I remember an old option in kernel that asked you which size of ram you
> > think to be used. This option seems to have disappeared now.
> >
> > If you want a 2.6.11 kernel, try to compile the kernel and search for
> > such an option...
> >
> > Christophe
> >
> > Nigel Henry a écrit :
> >> On Friday 15 June 2007 16:46, arijit sarkar wrote:
> >>> On Fri, 2007-06-15 at 08:02 -0500, Gary Rosenfeldt wrote:
> >>>> Hello,
> >>>>
> >>>> I recently installed Debian Etch on my desktop system. My mobo is an
> >>>> abit nf-7s with nforce2 chipset. I have 1 gig of ram installed but
> >>>> debian only sees 885.5 MiB of my ram. Fortunately, I'm not
> >>>> experiencing any stability issues. Anyone know the cause of this
> >>>> oddity.
> >>>>
> >>>> Thanks,
> >>>>
> >>>> Gary
> >>>
> >>> It's obvious, your motherboard has 128mb shared memory. So debian sess
> >>> only 885.5 mb.
> >>> I also have 1gig RAM and 128 mb as shared graphics memory. My 'system
> >>> monitor' shows ~885mb.
> >>> check out your BIOS settings. :-)
> >>>
> >>> --
> >>> Arijit Sarkar
> >>> Kolkata, India
> >>
> >> That's interesting. I was booted up in Lenny using the 2.6.11 kernel,
> >> and usually see Gkrellm showing 885Mb of my 1Gb RAM. I've since
> >> rebooted with the 2.6.17 kernel , and with that kernel, Gkrellm is
> >> showing the full 1005Mb of RAM. The onboard graphics card is a
> >> Cyberbladei1 (trident driver).
> >>
> >> Quite why booting with the 2.6.11 shows 885Mb, and booting with the
> >> 2.6.17 shows 1005Mb is a bit bizarre. Probably some kernel thingy.
> >>
> >> Nigel.

  Réponse avec citation
Vieux 15/06/2007, 20h00   #8
Stephen Cormier
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Hébergeur:
Par défaut Re: Debian only sees 885.5 MiB memory

On June 15, 2007 12:33:04 pm Nigel Henry wrote:
> On Friday 15 June 2007 16:46, arijit sarkar wrote:
> > On Fri, 2007-06-15 at 08:02 -0500, Gary Rosenfeldt wrote:
> > > Hello,
> > >
> > > I recently installed Debian Etch on my desktop system. My mobo is an
> > > abit nf-7s with nforce2 chipset. I have 1 gig of ram installed but
> > > debian only sees 885.5 MiB of my ram. Fortunately, I'm not
> > > experiencing any stability issues. Anyone know the cause of this
> > > oddity.
> > >
> > > Thanks,
> > >
> > > Gary

> >
> > It's obvious, your motherboard has 128mb shared memory. So debian sess
> > only 885.5 mb.
> > I also have 1gig RAM and 128 mb as shared graphics memory. My 'system
> > monitor' shows ~885mb.
> > check out your BIOS settings. :-)
> >
> > --
> > Arijit Sarkar
> > Kolkata, India

>
> That's interesting. I was booted up in Lenny using the 2.6.11 kernel, and
> usually see Gkrellm showing 885Mb of my 1Gb RAM. I've since rebooted with
> the 2.6.17 kernel , and with that kernel, Gkrellm is showing the full
> 1005Mb of RAM. The onboard graphics card is a Cyberbladei1 (trident
> driver).
>
> Quite why booting with the 2.6.11 shows 885Mb, and booting with the 2.6.17
> shows 1005Mb is a bit bizarre. Probably some kernel thingy.


Yes it is a kernel thingy around the .15, .16, .17 time I can't recall which
first had it but there was a patch called the 1gb lowmem which you could
apply to allow a machine with 1gb of ram use all of it as lowmem instead of
having to use the highmem option this patch was incorporated into the
mainline kernel so you no longer had to patch it yourself to get all your
memory. For your udev situation I see in another post you can always
compile/install your own kernel which will not have a dependency on it this
is what I do so I don't have to use it or try making a udev rule(s) to assign
your /dev/video? devices the same everytime.

> Nigel.


Stephen

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  Réponse avec citation
Vieux 15/06/2007, 20h40   #9
Nigel Henry
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Par défaut Re: Debian only sees 885.5 MiB memory

On Friday 15 June 2007 19:50, Stephen Cormier wrote:
> On June 15, 2007 12:33:04 pm Nigel Henry wrote:
> > On Friday 15 June 2007 16:46, arijit sarkar wrote:
> > > On Fri, 2007-06-15 at 08:02 -0500, Gary Rosenfeldt wrote:
> > > > Hello,
> > > >
> > > > I recently installed Debian Etch on my desktop system. My mobo is an
> > > > abit nf-7s with nforce2 chipset. I have 1 gig of ram installed but
> > > > debian only sees 885.5 MiB of my ram. Fortunately, I'm not
> > > > experiencing any stability issues. Anyone know the cause of this
> > > > oddity.
> > > >
> > > > Thanks,
> > > >
> > > > Gary
> > >
> > > It's obvious, your motherboard has 128mb shared memory. So debian sess
> > > only 885.5 mb.
> > > I also have 1gig RAM and 128 mb as shared graphics memory. My 'system
> > > monitor' shows ~885mb.
> > > check out your BIOS settings. :-)
> > >
> > > --
> > > Arijit Sarkar
> > > Kolkata, India

> >
> > That's interesting. I was booted up in Lenny using the 2.6.11 kernel, and
> > usually see Gkrellm showing 885Mb of my 1Gb RAM. I've since rebooted with
> > the 2.6.17 kernel , and with that kernel, Gkrellm is showing the full
> > 1005Mb of RAM. The onboard graphics card is a Cyberbladei1 (trident
> > driver).
> >
> > Quite why booting with the 2.6.11 shows 885Mb, and booting with the
> > 2.6.17 shows 1005Mb is a bit bizarre. Probably some kernel thingy.

>
> Yes it is a kernel thingy around the .15, .16, .17 time I can't recall
> which first had it but there was a patch called the 1gb lowmem which you
> could apply to allow a machine with 1gb of ram use all of it as lowmem
> instead of having to use the highmem option this patch was incorporated
> into the mainline kernel so you no longer had to patch it yourself to get
> all your memory. For your udev situation I see in another post you can
> always compile/install your own kernel which will not have a dependency on
> it this is what I do so I don't have to use it or try making a udev rule(s)
> to assign your /dev/video? devices the same everytime.
>
> > Nigel.

>
> Stephen


Ok. So what it comes down to then, is that earlier kernels, my 2.6.11 for
example arn't setup to use my 1GB of physical RAM, but just 885Mb of it. If
so, that's not really a problem, as 885Mb is a fair bit, and I've never gone
into the 1.5Gb of swap that's available.

I'll look into the udev problem, and compiling my own kernel. (only done this
once before for Gentoo, and that with someones from a list).

Many thanks.

Nigel. aka farpoint.


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  Réponse avec citation
Vieux 15/06/2007, 21h20   #10
Stephen Cormier
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Par défaut Re: Debian only sees 885.5 MiB memory

On June 15, 2007 03:34:07 pm Nigel Henry wrote:
> On Friday 15 June 2007 19:50, Stephen Cormier wrote:
> > On June 15, 2007 12:33:04 pm Nigel Henry wrote:
> > > On Friday 15 June 2007 16:46, arijit sarkar wrote:
> > > > On Fri, 2007-06-15 at 08:02 -0500, Gary Rosenfeldt wrote:
> > > > > Hello,
> > > > >
> > > > > I recently installed Debian Etch on my desktop system. My mobo is
> > > > > an abit nf-7s with nforce2 chipset. I have 1 gig of ram installed
> > > > > but debian only sees 885.5 MiB of my ram. Fortunately, I'm not
> > > > > experiencing any stability issues. Anyone know the cause of this
> > > > > oddity.
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Gary
> > > >
> > > > It's obvious, your motherboard has 128mb shared memory. So debian
> > > > sess only 885.5 mb.
> > > > I also have 1gig RAM and 128 mb as shared graphics memory. My 'system
> > > > monitor' shows ~885mb.
> > > > check out your BIOS settings. :-)
> > > >
> > > > --
> > > > Arijit Sarkar
> > > > Kolkata, India
> > >
> > > That's interesting. I was booted up in Lenny using the 2.6.11 kernel,
> > > and usually see Gkrellm showing 885Mb of my 1Gb RAM. I've since
> > > rebooted with the 2.6.17 kernel , and with that kernel, Gkrellm is
> > > showing the full 1005Mb of RAM. The onboard graphics card is a
> > > Cyberbladei1 (trident driver).
> > >
> > > Quite why booting with the 2.6.11 shows 885Mb, and booting with the
> > > 2.6.17 shows 1005Mb is a bit bizarre. Probably some kernel thingy.

> >
> > Yes it is a kernel thingy around the .15, .16, .17 time I can't recall
> > which first had it but there was a patch called the 1gb lowmem which you
> > could apply to allow a machine with 1gb of ram use all of it as lowmem
> > instead of having to use the highmem option this patch was incorporated
> > into the mainline kernel so you no longer had to patch it yourself to get
> > all your memory. For your udev situation I see in another post you can
> > always compile/install your own kernel which will not have a dependency
> > on it this is what I do so I don't have to use it or try making a udev
> > rule(s) to assign your /dev/video? devices the same everytime.
> >
> > > Nigel.

> >
> > Stephen

>
> Ok. So what it comes down to then, is that earlier kernels, my 2.6.11 for
> example arn't setup to use my 1GB of physical RAM, but just 885Mb of it. If
> so, that's not really a problem, as 885Mb is a fair bit, and I've never
> gone into the 1.5Gb of swap that's available.


Yes the stock kernels do not have the highmem option enabled as that is really
where the problem lies with a 32bit machine and the way the memory gets
divided between the lowmem and highmem. You could install a highmem enabled
kernel but the way I understand it there is a performance cost involved that
is really not worth it for the tiny extra bit of memory you are using with
1gb installed that is why someone came up with the 1gb lowmem patch.

> I'll look into the udev problem, and compiling my own kernel. (only done
> this once before for Gentoo, and that with someones from a list).


If you are going to compile your own kernel you should probably do it the
Debian way with the kernel-package package installed then after configuring
it is only a matter of using the fakeroot make-kpkg kernel-image command
which would build you a .deb to install and reboot into. A guide at the URL
below is a place to start it is for an 2.4 kernel but the process remains the
same for 2.6.

http://newbiedoc.sourceforge.net/system/kernel-pkg.html

> Many thanks.
>
> Nigel. aka farpoint.


Your welcome,

Stephen

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  Réponse avec citation
Vieux 20/06/2007, 17h00   #11
Michelle Konzack
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Hébergeur:
Par défaut Re: Debian only sees 885.5 MiB memory

Am 2007-06-15 17:33:04, schrieb Nigel Henry:
> That's interesting. I was booted up in Lenny using the 2.6.11 kernel, and
> usually see Gkrellm showing 885Mb of my 1Gb RAM. I've since rebooted withthe
> 2.6.17 kernel , and with that kernel, Gkrellm is showing the full 1005Mb of
> RAM. The onboard graphics card is a Cyberbladei1 (trident driver).
>
> Quite why booting with the 2.6.11 shows 885Mb, and booting with the 2.6.17
> shows 1005Mb is a bit bizarre. Probably some kernel thingy.


The NEW Kernel is switching the Graphiccard in a Modus
where it only consumes 8 MByte instead of 128 MByte?

Do you use Frame-Bufer?

Thanks, Greetings and nice Day
Michelle Konzack
Systemadministrator
Tamay Dogan Network
Debian GNU/Linux Consultant


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  Réponse avec citation
Vieux 20/06/2007, 17h00   #12
Michelle Konzack
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Par défaut Re: Debian only sees 885.5 MiB memory

Am 2007-06-15 08:02:40, schrieb Gary Rosenfeldt:
> Hello,
>
> I recently installed Debian Etch on my desktop system. My mobo is an
> abit nf-7s with nforce2 chipset. I have 1 gig of ram installed but
> debian only sees 885.5 MiB of my ram. Fortunately, I'm not
> experiencing any stability issues. Anyone know the cause of this
> oddity.


The graphic card is eating 128 MByte and then the Kernel 10.5 MBytes.

Thanks, Greetings and nice Day
Michelle Konzack
Systemadministrator
Tamay Dogan Network
Debian GNU/Linux Consultant


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  Réponse avec citation
Vieux 20/06/2007, 17h00   #13
Michelle Konzack
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Par défaut Re: Debian only sees 885.5 MiB memory

Am 2007-06-15 19:34:57, schrieb Nigel Henry:
> It was mainly an observation between the 2 kernels. I don't particularly want
> to use the 2.6.11, but the 2.6.17 uses udev, and is hit and miss as to the
> ordering of my 2 devices that use /dev/video. Sometimes the TV card is set
> as /dev/video0 (which is correct), and the webcam as /dev/video1 (also
> correct). Othertimes these are inverted. I have no such problems with the
> 2.6.11 kernel, and as soon as I can find out the correct udev rule to write
> to correct this problem with the 2.6.17 kernel I will use that kernel.


You do not need UDEV. Deinstall it, create all needed devices by
hand and you are done.

I have done the same since UDEV/HOTPLUG pissed me off all the time.

Thanks, Greetings and nice Day
Michelle Konzack
Systemadministrator
Tamay Dogan Network
Debian GNU/Linux Consultant


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##################### Debian GNU/Linux Consultant #####################
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  Réponse avec citation
Vieux 20/06/2007, 17h10   #14
Michelle Konzack
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Par défaut Re: Debian only sees 885.5 MiB memory

Am 2007-06-15 17:33:04, schrieb Nigel Henry:
> That's interesting. I was booted up in Lenny using the 2.6.11 kernel, and
> usually see Gkrellm showing 885Mb of my 1Gb RAM. I've since rebooted withthe
> 2.6.17 kernel , and with that kernel, Gkrellm is showing the full 1005Mb of
> RAM. The onboard graphics card is a Cyberbladei1 (trident driver).
>
> Quite why booting with the 2.6.11 shows 885Mb, and booting with the 2.6.17
> shows 1005Mb is a bit bizarre. Probably some kernel thingy.


Was the 2.6.11 kernel an 386 or 686 one and
now the 2.6.17 a k7 or something like this?

Then it is normal if HIGHMEM4 was not enabled,
since CPUS's up to 686 have general not more
then 768 MByte of ram.

Only the newer Mainboards P3 and higher have
HIGHMEM4 since all manboards support at least
2 GByte of memory

Thanks, Greetings and nice Day
Michelle Konzack
Systemadministrator
Tamay Dogan Network
Debian GNU/Linux Consultant


--
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##################### Debian GNU/Linux Consultant #####################
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  Réponse avec citation
Vieux 20/06/2007, 18h30   #15
Nigel Henry
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Par défaut Re: Debian only sees 885.5 MiB memory

On Wednesday 20 June 2007 16:29, Michelle Konzack wrote:
> Am 2007-06-15 17:33:04, schrieb Nigel Henry:
> > That's interesting. I was booted up in Lenny using the 2.6.11 kernel, and
> > usually see Gkrellm showing 885Mb of my 1Gb RAM. I've since rebooted with
> > the 2.6.17 kernel , and with that kernel, Gkrellm is showing the full
> > 1005Mb of RAM. The onboard graphics card is a Cyberbladei1 (trident
> > driver).
> >
> > Quite why booting with the 2.6.11 shows 885Mb, and booting with the
> > 2.6.17 shows 1005Mb is a bit bizarre. Probably some kernel thingy.

>
> Was the 2.6.11 kernel an 386 or 686 one and
> now the 2.6.17 a k7 or something like this?


2.6.11-1-386
2.6.17-2-686
>
> Then it is normal if HIGHMEM4 was not enabled,
> since CPUS's up to 686 have general not more
> then 768 MByte of ram.
>
> Only the newer Mainboards P3 and higher have
> HIGHMEM4 since all manboards support at least
> 2 GByte of memory


Mainboard is on an Aiii-friend machine. Celeron 1.3GHz CPU. Board is able to
handle 1GB RAM max, and that's what's on it.
System board: CM33-TC Rev. B+
>
> Thanks, Greetings and nice Day
> Michelle Konzack
> Systemadministrator
> Tamay Dogan Network
> Debian GNU/Linux Consultant


Nigel.


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  Réponse avec citation
Vieux 20/06/2007, 18h40   #16
Orestes leal
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Par défaut Re: Debian only sees 885.5 MiB memory


> >
> > Do you use Frame-Bufer?

>
> Sorry. Not sure on that. Where (showing my ignorance) would I check that out?


dmesg | grep framebuffer



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  Réponse avec citation
Vieux 20/06/2007, 18h40   #17
Nigel Henry
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Par défaut Re: Debian only sees 885.5 MiB memory

On Wednesday 20 June 2007 16:29, Michelle Konzack wrote:
> Am 2007-06-15 17:33:04, schrieb Nigel Henry:
> > That's interesting. I was booted up in Lenny using the 2.6.11 kernel, and
> > usually see Gkrellm showing 885Mb of my 1Gb RAM. I've since rebooted with
> > the 2.6.17 kernel , and with that kernel, Gkrellm is showing the full
> > 1005Mb of RAM. The onboard graphics card is a Cyberbladei1 (trident
> > driver).
> >
> > Quite why booting with the 2.6.11 shows 885Mb, and booting with the
> > 2.6.17 shows 1005Mb is a bit bizarre. Probably some kernel thingy.

>
> The NEW Kernel is switching the Graphiccard in a Modus
> where it only consumes 8 MByte instead of 128 MByte?


According to the sales info when I bought the machine in 2003, the
Cyberbladei1 card uses 8MB of shared memory.
>
> Do you use Frame-Bufer?


Sorry. Not sure on that. Where (showing my ignorance) would I check that out?
>
> Thanks, Greetings and nice Day
> Michelle Konzack
> Systemadministrator
> Tamay Dogan Network
> Debian GNU/Linux Consultant


Nigel.


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  Réponse avec citation
Vieux 20/06/2007, 19h10   #18
Nigel Henry
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Par défaut Re: Debian only sees 885.5 MiB memory

On Wednesday 20 June 2007 18:35, Orestes leal wrote:
> > > Do you use Frame-Bufer?

> >
> > Sorry. Not sure on that. Where (showing my ignorance) would I check that
> > out?

>
> dmesg | grep framebuffer


That's just returned me to the prompt. So is that a yes, or a no?

Nigel.


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Vieux 20/06/2007, 19h20   #19
Orestes leal
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Par défaut Re: Debian only sees 885.5 MiB memory

On Wed, 20 Jun 2007 19:04:32 +0200
Nigel Henry <cave.dnb@tiscali.fr> wrote:

> On Wednesday 20 June 2007 18:35, Orestes leal wrote:
> > > > Do you use Frame-Bufer?
> > >
> > > Sorry. Not sure on that. Where (showing my ignorance) would I check that
> > > out?

> >
> > dmesg | grep framebuffer

>
> That's just returned me to the prompt. So is that a yes, or a no?
>
> Nigel.
>


Then doesn't look like you have any framebuffer driver memory reserved, I have an ASUS mb with
256M ram and 64 video onboard ati radeon express 200 series and share 64m with ram, the funny thing
it's that in the bios doesn't have any option that refers to hat, just I know that I have 64 megs
of shared memory guessing, and I don't have any framebuffer active, my linux box (2.6.21.5) detects
192 Megs of phisical memory, end of story to me, consider that in the desing of this mob
includes this requirement as a must to work, for now good luck.

Sorry for the crazy english.
Greetings From Cuba.
Orestes.

--
Orestes <orestesleal13022@cha.jovenclub.cu>


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  Réponse avec citation
Vieux 20/06/2007, 20h10   #20
Andrew J. Barr
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Par défaut Re: Debian only sees 885.5 MiB memory

Nigel Henry <cave.dnb@tiscali.fr> wrote:

> Quite why booting with the 2.6.11 shows 885Mb, and booting with the
> 2.6.17 shows 1005Mb is a bit bizarre. Probably some kernel thingy.


Due to my interest in booting Linux on a system with 16 MB memory[0], I
have been reading a bit about the kernel's memory management. Seems
that some older kernels (don't remember if they were older 2.6 versions
or 2.4) only show up to about that amount (885MB) on some older
CPU-chipset combinations. If you can't upgrade to the latest and
greatest[1], I would suggest looking around for some kind of memory
boundary issue with >1GB of RAM. Another thing to try is using a
-highmem kernel.

Hope this s.

[0] http://thread.gmane.org/gmane.linux.debian.user/294020
[1] http://www.kernel.org/pub/linux/kern...geLog-2.6.21.5

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Woke up in my clothes again this morning,
don't know exactly where I am...


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