SliTaz Forum

Ceel

Administrator

Registered: 2011-04-02

Posts: 1,424

Rolling 32 and memory

Hi all,

I recently noticed a weird thing.

[*]SliTaz Rolling 32 running on an acer Aspire with 4GB RAM (2x2GB probably) sees only 2GB RAM:

[attachment=47796,2839]

[*]SliTaz Rolling 64 running on the same computer sees the entire RAM:

[attachment=47796,2840]

[*]SliTaz 32 running on a hp Pavilion 3GB (2x512MB + 2x1GB) does not have a problem to access all the memory:

[attachment=47796,2841]

Does someone have an explanation?

And do other members find the same thing on their computer?

lexeii

Administrator

Registered: 2012-03-21

Posts: 1,853

Re: Rolling 32 and memory

Hi Ceel,

All my RAM is in place :-)

[attachment=47801,2842]

shann

Administrator

Registered: 2011-04-01

Posts: 1,296

Website

Re: Rolling 32 and memory

Hi Ceel,

i check kernel config of 3.16.55 32bits (HIGHMEM4G defined), PAE is enabled to see 4Go of memory.

With Rolling64 you run with 64 bits kernel, he can see all memory >=4Go.

On your HP laptop you have 3Go of memory (<4Go of limit 32bits address space).

I doesn't understood why with HIGMEM4G defined, 32bits kernel doesn't see 4Go on your Acer laptop, maybe a hardware specif .

Ceel

Administrator

Registered: 2011-04-02

Posts: 1,424

Re: Rolling 32 and memory

Hey Aleksej, joker!

I can see you are using Rolling 64.

Hi shann,

maybe a hardware specif .

I'm really afraid of this.

The hardware of this PC is really capricious (never again I'll buy an acer )

shann

Administrator

Registered: 2011-04-01

Posts: 1,296

Website

Re: Rolling 32 and memory

Hey Ceel,

I suggest is hardware issue but not sure (because with 64bits kernel see all memory).

To be sure that hardware, you can try livecd of 32 bits other distribution to confirm that see only 2Go of 4Go

Ceel

Administrator

Registered: 2011-04-02

Posts: 1,424

Re: Rolling 32 and memory

Hi shann,

To be sure that hardware, you can try livecd of 32 bits other distribution to confirm that see only 2Go of 4Go

Excellent idea!

I'm going to search for a distro that still have a 32bit ISO without PAE not activated, like in SliTaz. Maybe Porteus or Alpine Linux. Or simply Next.