Re: xmon: Clear all breakpoints when xmon is disabled via debugfs

On Sun, 2018-03-04 at 17:31:32 UTC, Vaibhav Jain 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 <redacted>
Reviewed-by: Balbir Singh <bsingharora@gmail.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/1ff3b404019adf9d605224e1dce067

cheers