Re: [PATCH] xmon: Clear all breakpoints when xmon is disabled via debugfs

[Balbir Singh]

On Mon, Mar 5, 2018 at 4:31 AM, Vaibhav Jain <vaibhav@xxxxxxxxxxxxxxxxxx> wrote:
> Presently when xmon is disabled by debugfs any existing
> instruction/data-access breakpoints set are not disabled. This may
> lead to kernel oops when those breakpoints are hit as the necessary
> debugger hooks aren't installed.
>
> Hence this patch introduces a new function named clear_all_bpt()
> which is called when xmon is disabled via debugfs. The function will
> unpatch/clear all the trap and ciabr/dab based breakpoints.
>
> Signed-off-by: Vaibhav Jain <vaibhav@xxxxxxxxxxxxxxxxxx>
> ---

Reviewed-by: Balbir Singh <bsingharora@xxxxxxxxx>

Balbir