linux-kernel - Re: [PATCH 11/31] Add debugger entry points for ARC

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Message-ID: <C2D7FE5348E1B147BCA15975FBA23075F4E875A7@us01wembx1.internal.synopsys.com>
Date:	Mon, 1 Feb 2016 09:56:29 +0000
From:	Vineet Gupta <Vineet.Gupta1@...opsys.com>
To:	Jeffrey Merkey <jeffmerkey@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	"linux.mdb@...il.com" <linux.mdb@...il.com>,
	"linux-snps-arc@...ts.infradead.org" 
	<linux-snps-arc@...ts.infradead.org>
Subject: Re: [PATCH 11/31] Add debugger entry points for ARC

On Friday 29 January 2016 01:16 AM, Jeffrey Merkey wrote:
> This patch series adds an export which can be set by system debuggers to
> direct the hard lockup and soft lockup detector to trigger a breakpoint
> exception and enter a debugger if one is active.  It is assumed that if
> someone sets this variable, then an breakpoint handler of some sort will
> be actively loaded or registered via the notify die handler chain.
>
> This addition is extremely useful for debugging hard and soft lockups
> real time and quickly from a console debugger.
>
> Signed-off-by: Jeffrey Merkey <jeffmerkey@...il.com>

To reduce duplication, maybe later this could be used to replace
arch_kgdb_breakpoint()

Acked-by: Vineet Gupta <vgupta@...opsys.com>