[U-Boot-Users] Linux Hangs After Uncompressing Kernel

[U-Boot-Users] Linux Hangs After Uncompressing Kernel

[wenwen]

i download a 6M Byte kernel(28M bytes uncompressed) to SDRAM(0x4000000), it hangs after uncompressing kernel.

when i use standalone downlod the kernel, i found the text section which offset is 8M bytes is not the same as the objdump file of the elf file. is there any limited size about kernel ?
i used amcc ppc440 sequoia board

 
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[U-Boot-Users] Linux Hangs After Uncompressing Kernel

[Marco Cavallini]

wenwen ha scritto:
> i download a 6M Byte kernel(28M bytes uncompressed) to
SDRAM(0x4000000), it hangs after uncompressing kernel.
>
> when i use standalone downlod the kernel, i found the text section
which offset is 8M bytes is not the same as the objdump file of the elf
file. is there any limited size about kernel ?
> i used amcc ppc440 sequoia board

Seems definitely huge,
what are you doing exactly ?

-- 
Marco Cavallini
Koan s.a.s. - Bergamo - ITALIA
Embedded and Real-Time Software Engineering
 - Atmel Third Party Consultant
Tel. +39-(0)35-255.235 - Fax +39-178-223.9748
www.KoanSoftware.com   |    www.KaeilOS.com

[U-Boot-Users] Linux Hangs After Uncompressing Kernel

[Stefan Roese]

Hi Wenwen,

On Saturday 30 September 2006 18:33, wenwen wrote:
> i download a 6M Byte kernel(28M bytes uncompressed) to SDRAM(0x4000000), it
> hangs after uncompressing kernel.

I have never seen such a big kernel image. I can't believe that it should be 
possible to configure such a huge kernel, even with all options enabled. You 
must be doing something wrong here.

> when i use standalone downlod the kernel, i found the text section which
> offset is 8M bytes is not the same as the objdump file of the elf file. is
> there any limited size about kernel ? i used amcc ppc440 sequoia board

Where did you get the linux kernel? What version are you using?

Best regards,
Stefan

[U-Boot-Users] Linux Hangs After Uncompressing Kernel

[wenwen]

my kernel is really a huge kernel, i found in u-boot


/*
 * For booting Linux, the board info and command line data
 * have to be in the first 8 MB of memory, since this is
 * the maximum mapped by the Linux kernel during initialization.
 */
#define CFG_BOOTMAPSZ  (8 << 20) /* Initial Memory map for Linux  */


1. does 8MB is the maximum mapped by the Linux kernel during initialization?

2. does it mean i can change the kernel options or u-boot options to fix it?


----- Original Message ----- 
From: "Stefan Roese" <sr@denx.de>
To: <u-boot-users@lists.sourceforge.net>
Cc: "wenwen" <ww_neu@tom.com>
Sent: Sunday, October 01, 2006 5:17 PM
Subject: Re: [U-Boot-Users] Linux Hangs After Uncompressing Kernel


> Hi Wenwen,
> 
> On Saturday 30 September 2006 18:33, wenwen wrote:
>> i download a 6M Byte kernel(28M bytes uncompressed) to SDRAM(0x4000000), it
>> hangs after uncompressing kernel.
> 
> I have never seen such a big kernel image. I can't believe that it should be 
> possible to configure such a huge kernel, even with all options enabled. You 
> must be doing something wrong here.
> 
>> when i use standalone downlod the kernel, i found the text section which
>> offset is 8M bytes is not the same as the objdump file of the elf file. is
>> there any limited size about kernel ? i used amcc ppc440 sequoia board
> 
> Where did you get the linux kernel? What version are you using?
> 
> Best regards,
> Stefan
> 
>