Re: [PATCH 08/19] x86, mpx: trace #BR exceptions

Thomas Gleixner
2015-05-18T21:00:05Z

On Fri, 8 May 2015, Dave Hansen wrote:
> This is the first in a series of MPX tracing patches.
> I've found these extremely useful in the process of
> debugging applications and the kernel code itself.
>
> This exception hooks in to the bounds (#BR) exception
> very early and allows capturing the key registers which
> would influence how the exception is handled.
>
> Note that bndcfgu/bndstatus are technically still
> 64-bit registers even in 32-bit mode.
>
> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>