From: Paul Mundt <lethal@linux-sh.org>
To: linux-sh@vger.kernel.org
Subject: Re: Booting kernel problem !
Date: Mon, 13 Oct 2008 13:13:47 +0000 [thread overview]
Message-ID: <20081013131347.GE10579@linux-sh.org> (raw)
In-Reply-To: <loom.20081013T035846-303@post.gmane.org>
On Mon, Oct 13, 2008 at 04:18:20AM +0000, Cuong Dang Phu wrote:
> I'm having a problem when booting Linux kernel on sh7727, this is what I did:
>
> Kernel start booting with head.s:
> [/linux-2.6.22.11/arch/sh/boot/compressed/head.s]
> ???
> /* Set the initial pointer. */
> mov.l init_stack_addr, r0
> mov.l @r0, r15
> /* Decompress the kernel */
> mov.l decompress_kernel_addr, r0
> jsr @r0
> nop
> ???
>
> And jump to ???decompress_kernel???:
> [/linux-2.6.22.11/arch/sh/boot/compressed/misc.c]
> ???
> void decompress_kernel(void)
> {
> output_data = 0;
> output_ptr = P2SEGADDR((unsigned long)&_text+PAGE_SIZE);
> free_mem_ptr = (unsigned long)&_end;
> free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
>
> makecrc();
> puts("Uncompressing Linux... ");
> gunzip();
> puts("Ok, booting the kernel.\n");
> }
> ???
>
> And it crash when execute ???makecrc();???
> I don???t why it crash here, could you give me you ideas,
>
It sounds like you may have to fix up your BOOT_LINK_OFFSET or some
related settings. makecrc() itself is harmless and only does some simple
computation for preparing a table, so it is likely that your initial
stack pointer is having issues.
prev parent reply other threads:[~2008-10-13 13:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-13 4:18 Booting kernel problem ! Cuong Dang Phu
2008-10-13 13:13 ` Paul Mundt [this message]
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