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SubjectRe: [PATCH] Documentation: DocBook: kgdb: update CONFIG_STRICT_KERNEL_RWX info
On Tue, 18 Apr 2017 18:58:45 -0700
Li Qiang <liq3ea@gmail.com> wrote:

> CONFIG_STRICT_KERNEL_RWX is no longer selectable on most architectures.
> Update this info to the documentation.
>
> Signed-off-by: Li Qiang <liqiang6-s@360.cn>
> ---
> Documentation/DocBook/kgdb.tmpl | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/DocBook/kgdb.tmpl b/Documentation/DocBook/kgdb.tmpl
> index 856ac20..ef0b67b 100644
> --- a/Documentation/DocBook/kgdb.tmpl
> +++ b/Documentation/DocBook/kgdb.tmpl
> @@ -121,7 +121,9 @@
> If kgdb supports it for the architecture you are using, you can
> use hardware breakpoints if you desire to run with the
> CONFIG_STRICT_KERNEL_RWX option turned on, else you need to turn off
> - this option.
> + this option. In most architectures, this option is not selectable.
> + For this situation, it can be turned off by adding a runtime parameter
> + 'rodata=off'.

So this is an improvement, I guess, though the paragraph remains kind of
confusing. Is there any chance we could actually just say which
architectures can use hardware breakpoints, and which should boot with
rodata=off?

Thanks,

jon

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