[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <4A37B86E.5020004@zytor.com>
Date: Tue, 16 Jun 2009 08:21:18 -0700
From: "H. Peter Anvin" <hpa@...or.com>
To: Ingo Molnar <mingo@...e.hu>
CC: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
Linus Torvalds <torvalds@...ux-foundation.org>,
mingo@...hat.com, paulus@...ba.org, acme@...hat.com,
linux-kernel@...r.kernel.org, a.p.zijlstra@...llo.nl,
penberg@...helsinki.fi, vegard.nossum@...il.com, efault@....de,
jeremy@...p.org, npiggin@...e.de, tglx@...utronix.de,
linux-tip-commits@...r.kernel.org
Subject: Re: [tip:perfcounters/core] perf_counter: x86: Fix call-chain support
to use NMI-safe methods
Ingo Molnar wrote:
>
> The ideal solution would be for the CPU to atomically push the cr2
> value to the #PF hardware stack, alongside the error code it already
> pushes there.
>
That's not going to happen any time soon, obviously.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists