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

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Message-ID: <alpine.DEB.2.11.1505182259450.4225@nanos>
Date:	Mon, 18 May 2015 23:00:11 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Dave Hansen <dave@...1.net>
cc:	linux-kernel@...r.kernel.org, x86@...nel.org,
	dave.hansen@...ux.intel.com
Subject: Re: [PATCH 08/19] x86, mpx: trace #BR exceptions

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@...ux.intel.com>

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