In the last lines of the build which contains the below ppc_82xx-ld -T ../ld.script -Ttext 0x00400000 -Bstatic -o zvmlinux head.o
means that the entry address is 0x400000 ( 4MB) . Does it mean that the while making mkImage for the kernel the -e option should be given 0x400000? And the load address option should also be the same for linux kernel image or Is it ok if the load address is 0x0 address? Thanks & Regards Surabhi Srinivas -----Original Message----- From: [EMAIL PROTECTED] [mailto:linuxppc-embedded-bounces at ozlabs.org] On Behalf Of David Jander Sent: Monday, February 21, 2005 1:08 PM To: linuxppc-embedded at ozlabs.org Subject: Re: Freeing unused kernel memory: 56k init On Sunday 20 February 2005 16:25, srinivas.surabhi at wipro.com wrote: > When I tried to debug for the reason of "Freeing unused kernel memory: > 56k init " hang problem the following is the printk outputs... > > Entering kernel_read > > Entering elf_map > > map_addr was 0x30026000 Heh? Weired address. I'd expect something above 0xc0000000 > Failed due to bad address No wonder.... > >From the above can anything be concluded ? > > One more doubt was, is it mandatory that the Virtual memory has to > enabled while building the Mounta Vista linux kernel ? Why because there > was an option to enable the kernel base address and if it is enabled it > asks for what is the address for the Kernel Virtual base address? If I > give 0x0 it works otherwise the Kernel itself is not at all booting. Ok, don't say no more! Do not ever change that address unless you know exactly what you are doing. It should be 0xc0000000 usually. If the kernel doesn't boot, something else is wrong. The linux kernel uses virtual memory, that's why it needs an MMU for instance. That way, the memory the kernel uses and runs in is always mapped at address 0xc0000000. > Till the statement "Freeing unused kernel memory: 56k init" is coming > only if and if the 0x0 was given for the kernel virtual base address. That's actually pretty funny. I'd never thought about doing such an experiment and expecting it to do something :-) Greetings, -- David Jander Protonic Holland. _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded at ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded Confidentiality Notice The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Wipro or Mailadmin at wipro.com immediately and destroy all copies of this message and any attachments.
