RE: help: why show "Oops: kernel access of bad area, sig: 11"

RE: help: why show "Oops: kernel access of bad area, sig: 11"

[Dave Ellis]

guo_zhenglin wrote:

> ppcboot 2.0 use MHZ to set bi_intfreq , while kernel 2.4.20 consider
> bi_intfreq as HZ.

You should configure PPCBoot properly to match the kernel. This has
been configurable for a long time. See the PPCBoot README
re CONFIG_CLOCKS_IN_MHZ.

It has been discussed many times on the ppcboot-users list, for
example see:

http://sourceforge.net/mailarchive/message.php?msg_id=479868

BTW clocks_in_mhz must be _removed_ from the environment to
get the clocks in HZ. Setting the value 0 does not work.

Dave

Dave Ellis
~~~~~~~~~~~~~~~~~~~~~~~~~~
SIXNET - "Leading the Industrial Ethernet Revolution"
331 Ushers Road,   P.O. Box 767, Clifton Park, NY 12065 USA
Tel +1 (518) 877-5173   Fax +1 (518) 877-8346
Email me at: dge@sixnetio.com
Detailed product info: www.sixnetio.com
~~~~~~~~~~~~~~~~~~~~~~~~~~


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Re: Linux booting on FADS823 board

[Wolfgang Denk]

Rupesh,

in message <001901c320c6$e8440090$6706a8c0@SPLENDOR> you wrote:
>
> I have a problem booting Linux with u-boot.
> Here are my configurations

Why do you ask again?

You asked on the U-Boot mailing list already, and  received  a  reply
semi-immediately.  Only  7 minutes after your first posting you asked
again.

And now you post the same stuff a third time on linuxppc-embedded?


As long as you are asking for free support you should show  a  little
more  patience. [And even with commercial support you probably cannot
get guaranteed solutions in less than 5 minutes.]


Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Mistakes are often the stepping stones to utter failure.

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Linux booting on FADS823 board

[Rupesh S]

Hi groups,

I have a problem booting Linux with u-boot.
Here are my configurations

Processor -> MPC823
Board     -> FADS823
Available RAM -> 0x000 to 0x 800000

Linux kernel Linked at -> 0x40000
mkimage on kernel done with Load address -> 0x40000
mkimage on kernel done with Entry point -> 0x4000c
mkimage on RAMDISK done with Load Address -> 0x100000
mkimage on RAMDISK done with Entry point -> 0x100000

>From u-boot command prompt, I do the following

> tftpboot 40000 linux.img
> tftpboot 100000 ramdisk.img
> bootm 40000 100000

It says successful loading kernel , as well as RAMDISK. But after which,
I do not get any further Linux banneers. In fact, the Linux kernel 's
printfs aren't seen.

I set the env variable bootargs as /dev/ram.. But in any case, only
after the kernel boots up and the VFS is initialized, the Rootfs is
going to come into picture, right ??

Any clues....

Rupesh

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/