re: [linuxsh-dev] Ramdisk

[Jaswinder S. <jas...@ya...>]

--- "Studencki (external) Pawel"
<Paw...@er...> wrote:
> Hello,

Hello,

> 
> Jaswinder, thanks for your help.
> 
> the problem is, i have already:
> int rd_size = 4096;             /* Size of the RAM
> disks */
> 
> and wenn I'm trying to use RAM disk 4 MB I get these
> errors:
>
-------------------------------------------------------------------
> RAMDISK driver initialized: 16 RAM disks of 4096K
> size 1024 blocksize
> RAMDISK: ext2 filesystem found at block 0
> RAMDISK: Loading 4096 blocks [1 disk] into ram
> disk... <1>Unable to handle
> kernel NULL pointer dereference at virtual address
> 00000000
> pc = 8c00d842
> Oops: 0001
> 

This shows problem is during loading the RAMDISK.

> 
> After Your mail, I've increased size rd_size to
> 8192, but it doesn't
> help...

If you are using 4MB or less then 4MB you dont need to
change it.

>and I'm still using 2 MB RAM disk...
> 

It means , your kernel is working fine with 2 MB
RAMDISK.


> maybe has somebody tried to hard code kernel options
> (ramdisk_size,
> ramdisk_start, mem etc.) ??
> 	

print ramdisk_size before the process of loading
RAMDISK.

>  should I also modify variables argv_init, envp_init
> in init/main.c ? 
>  or it is all a wrong way to solve this problem?
> 

No , dont change it right now .


I am sending compressed 4 MB RAMDISK , add the elf
header & load it as you normally do .

and show the output of the kernel .

Regards,

Jaswinder.


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