Re: [microblaze-uclinux] Allocation of length 1416402 from process 43 fa

On 12/6/06, Dr. Johann Pfefferl <pfefferl@xxxxxxx> wrote:

Hello,

there exists a limit of the largest memory block you can allocate in one
block due to the MMU-less microblaze CPU. You can check the upper limit
by

# cat /proc/slabinfo

You have to choose a different memory allocator. Do the following:

# make linux_menuconfig

General setup  --->
         Non power-of-2 kernel allocator (EXPERIMENTAL)
         Allow allocating large blocks (> 1MB) of memory

You have to choose one of the possibilities above. I had success with
the "Non power-of-2 kernel allocator". It is marked experimental. So I
don't know if it is runtime stable when the system is running a long
time.

Hope this helps,
   Johann

Zhang Zhong < vxzhong@xxxxxxxxx> wrote:
> Hi,all:
>      I have compiled a program with a size of only 500k. But when I
> executed it  under uclinux, it failed. And output the following message:
>
> Allocation of length 1416402 from process 43 failed
> Free pages:       26376kB (     0kB HighMem)
> Zone:DMA freepages: 26376kB
> Zone:Normal freepages:     0kB
> Zone:HighMem freepages:     0kB
> ( Active: 189, inactive: 74, free: 6594 )
> 0*4kB 1*8kB 0*16kB 0*32kB 0*64kB 0*128kB 1*256kB 1*512kB 1*1024kB
> 12*2048kB = 26
> 376kB)
> = 0kB)
> = 0kB)
> Unable to allocate RAM for process text/data, errno 12
> ./facedetect: program too big
>
>    My board is Spartan 3E Starter Kit. I have been troubled by this problem
> for more than one week. Any help is really appreciated!
> --
> Zhang Zhong
> Email:vxzhong@xxxxxxxxx
>          zhangzhong@xxxxxxxxxxxxxx

--
Dr. Johann Pfefferl   ---------------   mailto pfefferl at gmx dot net
==
-o)   A computer program does what you tell it to do,
/\\        not what you want it to do.
_\_v-
___________________________
microblaze-uclinux mailing list
microblaze-uclinux@xxxxxxxxxxxxxx
Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/

Re: [microblaze-uclinux] Allocation of length 1416402 from process 43 failed