[Solved] RAM Missing.... 621.6mb RAM ???

Re: RAM Missing.... 621.6mb RAM ???

We are already aware about the missing RAM issue. In the next uBoot release this problem will be solved.

 

Re: RAM Missing.... 621.6mb RAM ???

Great, thanks @andcmp!

 

Re: RAM Missing.... 621.6mb RAM ???

Can I make a suggestion (both so you guys don't get hammered with it, and we don't have to see the same 100 questions posted over and over)?

Make a "Known issues and workarounds" page somewhere on the website and sticky the link to it on the forums so people are aware of what the current known problems are and any possible solutions there are to those issues.

 

Re: RAM Missing.... 621.6mb RAM ???

[Poker terminology coming up]

I see your 'known issues' page and raise you ' Bug Tracker/Ticket System'

Obviously there is a Bug Tracker going for this project, why not allow the community read access? I'm sure it will a) be much appreciated, b) lower frustration levels, c) ease the workload off the devs in responding to known issues (even if someone does ask, the community can answer 'that is known' on your behalf).

 

Re: RAM Missing.... 621.6mb RAM ???

maybe also make the beta testers forums avail? since this is almost still a beta hardware/software thing? software is prolly closer to beta than the hardware part.

 

Re: RAM Missing.... 621.6mb RAM ???

Call!

 

Re: RAM Missing.... 621.6mb RAM ???

Just tested something. Using serial I prevented the boot and changed the "memory" variable to 1024M instead of 768M, and now I get "Mem: 896576k total" using top.

Don't know if its real memory, but Linux will fail to boot if I try to change it to more than 1024M.

 

Re: RAM Missing.... 621.6mb RAM ???

@Roberto - that's great! So it seems it was just a typo when building uBoot?

 

Re: RAM Missing.... 621.6mb RAM ???

@josolanes
I don't really know, but if you want to test open the serial connection, power on UDOO, when it starts counting down press any key to stop.

Type "setenv memory mem=1024MB", then "saveenv" and finally "boot".

 

Re: RAM Missing.... 621.6mb RAM ???

@Roberto

I'll likely give this a try Thursday, next day I'm really available unfortunately - the wait is driving me crazy!

 

Re: RAM Missing.... 621.6mb RAM ???

Hi all,
memory layout of uDOO is currently configured as below.

Total memory on the board = 1024 Mega (4 banks x 256 Mega).
(A schematics was developed to support future release with 2048 Giga, but currently configuration is with only 1 Giga).

At boot kernel parameters limit available kernel memory to 768 Mega (mem=768M parameter)
Moreover Freescale suggest to reserve 128 Mega for GPU activity (Line 1244 of sabresd platform file http://tinyurl.com/pc96ml5 ), so also in uDOO kernel source you can find a correspondent line in: arch/arm/mach-mx6/board-mx6_seco_UDOO.c
(http://tinyurl.com/o5f2zaq line 264) which says reserved_mem_size = SZ_128M)

So current memory map is:

• • • • • 1024M <------------------- physical RAM size
          ....................... [256M] <--- Reserved for graphic
          768 M <------------------ Available for kernel
          ....................... [128 M] <--- Reserver for GPU
          640M <------------------- Available for system

According with the following Freescale documents:
https://community.freescale.com/docs/DOC-93591
uDoo team is plannig to modify working parameters to:
-> No more "mem=" parameter
-> fbmem = 24M
-> GPU reserved mem size = 32M

So in next upgrade, probably uDOO will see 968 Mega of free RAM.

Use of swap on sd devices is not suggested, but if you temporary need one I sugegst to create a single file swap, as described in this howto
http://www.cyberciti.biz/faq/linux-add- ... ile-howto/

bye
Giuseppe

 

Re: RAM Missing.... 621.6mb RAM ???

Nice breakdown detail.

 

Re: RAM Missing.... 621.6mb RAM ???

Hi All,

Do we have more information regarding the CPU load ?
This was raised in this post, but can't find any details.

To me, the load average is a 4.00 (15 min avg) while no process seems to use that CPU.

Thanks

 

Re: RAM Missing.... 621.6mb RAM ???

I had modify the memory to 875.6MB with U-Boot
Please refer to:
https://www.slanla.com/index.php?blog&i ... 3873413D3D

 

Re: RAM Missing.... 621.6mb RAM ???

With the latest version of the build and the additional update, this issue is resolved, so you dont have to adjust it manually.
As you can see from the thread it was resolved some time ago

 

Re: RAM Missing.... 621.6mb RAM ???

Lets mark this as [SOLVED] and lock it too then.

 

Re: RAM Missing.... 621.6mb RAM ???

Ok!