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Date: Sun, 8 Jan 2017 15:19:49 +0100
From: Jiri Olsa <jolsa@redhat.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: acme@kernel.org, jolsa@kernel.org, mingo@kernel.org,
        linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH 4/4] perf, tools, script: Add brstackasm output for
 branch stacks
Message-ID: <20170108141949.GA31186@krava>
References: <20170103090029.17621-1-andi@firstfloor.org>
 <20170103090029.17621-5-andi@firstfloor.org>
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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