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Date: Wed, 18 May 2011 20:02:24 +0200
From: Andreas Herrmann <herrmann.der.user@googlemail.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Hans Rosenfeld <hans.rosenfeld@amd.com>, "hpa@zytor.com" <hpa@zytor.com>,
        "x86@kernel.org" <x86@kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Robert Richter <robert.richter@amd.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Arnaldo Carvalho de Melo <acme@redhat.com>,
        =?iso-8859-1?Q?Fr=E9d=E9ric?= Weisbecker <fweisbec@gmail.com>,
        Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [RFC v3 0/8] x86, xsave: rework of extended state handling, LWP
 support
Message-ID: <20110518180224.GA24932@alberich.amd.com>
References: <4D91FA76.1010908@zytor.com>
 <1302018656-586370-1-git-send-email-hans.rosenfeld@amd.com>
 <20110407072305.GA20291@elte.hu>
 <20110516191012.GA575@escobedo.osrc.amd.com>
 <20110517113020.GA13475@elte.hu>
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On Tue, May 17, 2011 at 01:30:20PM +0200, Ingo Molnar wrote:
> 
> * Hans Rosenfeld <hans.rosenfeld@amd.com> wrote:
> 
> > Hi,
> > 
> > On Thu, Apr 07, 2011 at 03:23:05AM -0400, Ingo Molnar wrote:
> > > 
> > > FYI, the bits in tip:x86/xsave crash on boot on an AMD X2 testbox:
> > 
> > > Full crashlog and kernel config attached. I've excluded x86/save from 
> > > tip:master for now.
> > 
> > this issue has been fixed a few weeks ago.
> > 
> > Are there any plans to include x86/xsave into tip:master again?
> 
> Regarding the LWP bits, that branch was indeed excluded because of that crash, 
> while re-checking the branch today i noticed at least one serious design error 
> in it, which makes me reconsider the whole thing:

Independend of all the concerns and useful comments regarding LWP ...
it seems to me that patches 1-7 are still of use (cleaning up the
save/restore code making it more maintainable).

Wouldn't it make sense to add patches 1-7 to a branch that is tested
with linux-next to find potential regressions?


Andreas
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