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SubjectRe: kernel BUG at kernel/kallsyms.c:222!
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Hi,

On Thu, Nov 7, 2013 at 10:47 AM, Axel Lin <axel.lin@ingics.com> wrote:
>
> hi Ming,
> Seems CONFIG_PAGE_OFFSET is not configurabe in "make menuconfig".
> And I found CONFIG_PAGE_OFFSET=0xC0000000 for all below configs...
> $ make at91_dt_defconfig; grep CONFIG_PAGE_OFFSET .config
> $ make ep93xx_defconfig; grep CONFIG_PAGE_OFFSET .config
> $ make imx_v4_v5_defconfig; grep CONFIG_PAGE_OFFSET .config
> $ make mxs_defconfig; grep CONFIG_PAGE_OFFSET .config
> $ make omap2plus_defconfig; grep CONFIG_PAGE_OFFSET .config
> $ make s3c6400_defconfig; grep CONFIG_PAGE_OFFSET .config
> $ make at91x40_defconfig; grep CONFIG_PAGE_OFFSET .config
> ( at91x40_defconfig is also arm7tdmi )

Firstly it can be configured via VMSPLIT_3GVMSPLIT_2G/VMSPLIT_1G.

Secondly, configurable or not isn't the point, and maybe some uclinux
platforms do not use CONFIG_PAGE_OFFSET at all, but they should
set it as a reasonable value or at least be below than the start link
address of vmlinux.


Thanks,
--
Ming Lei


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