linux-kernel - RE: [patch] x86, ptrace: in-kernel BTS interface

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Message-ID: <029E5BE7F699594398CA44E3DDF5544401CE20DA@swsmsx413.ger.corp.intel.com>
Date:	Wed, 30 Apr 2008 13:43:20 +0100
From:	"Metzger, Markus T" <markus.t.metzger@...el.com>
To:	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	<andi-suse@...stfloor.org>, <hpa@...or.com>,
	<linux-kernel@...r.kernel.org>, <mingo@...e.hu>,
	<tglx@...utronix.de>, <markus.t.metzger@...il.com>,
	"Siddha, Suresh B" <suresh.b.siddha@...el.com>,
	<roland@...hat.com>, <mtk.manpages@...il.com>,
	<eranian@...glemail.com>,
	"Villacis, Juan" <juan.villacis@...el.com>
Subject: RE: [patch] x86, ptrace: in-kernel BTS interface

>-----Original Message-----
>From: Andrew Morton [mailto:akpm@...ux-foundation.org] 
>Sent: Mittwoch, 30. April 2008 14:27
>To: Metzger, Markus T

>> Provide an in-kernel interface to Branch Trace Store and 
>implement the
>> ptrace user interface on top of it.
>> 
>> Fix a few bugs that were detected during the perfmon2 adaptation to
>> the DS interface by Stephane Eranian.
>> 
>> The ptrace implementation becomes a rather thin layer that only
>> forwards requests.
>> 
>> The BTS interface may later be morphed into a utrace interface for
>> execution trace, or it may be used to implement such a utrace
>> interface on top of it.
>
>This appears to be against a version of x86-ptrace-pebs-support
>which I don't have.
>
>I dropped everything - let's start again.

That was against x86.git#latest.

Do you want me to send patches against some other git? Which one?

You complained about the size of the patch. If we start over, I could
split it into 3 pieces, one for each layer.


regards,
markus.
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