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Date:   Sun, 8 Jan 2017 15:19:49 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Andi Kleen <andi@...stfloor.org>
Cc:     acme@...nel.org, jolsa@...nel.org, mingo@...nel.org,
        linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 4/4] perf, tools, script: Add brstackasm output for
 branch stacks

On Tue, Jan 03, 2017 at 01:00:29AM -0800, Andi Kleen wrote:

SNIP

> +		len = grab_bb(buffer, start, end,
> +				machine, thread, &x.is64bit,
> +				&x.cpumode);
> +		/* Patch up missing kernel transfers due to ring filters */

could you please provide more details on those ring filters? never heard of..

thanks,
jirka

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