From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Jamie Lokier <jamie@shareable.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
benh <benh@kernel.crashing.org>, davem <davem@davemloft.net>,
"H. Peter Anvin" <hpa@zytor.com>,
Linux-Arch <linux-arch@vger.kernel.org>,
Ingo Molnar <mingo@elte.hu>, dhowells <dhowells@redhat.com>
Subject: Re: on memory barriers and cachelines
Date: Fri, 10 Feb 2012 10:47:22 -0800 [thread overview]
Message-ID: <20120210184722.GM2458@linux.vnet.ibm.com> (raw)
In-Reply-To: <1328897589.25989.30.camel@laptop>
On Fri, Feb 10, 2012 at 07:13:09PM +0100, Peter Zijlstra wrote:
> On Fri, 2012-02-10 at 08:32 -0800, Paul E. McKenney wrote:
> >
> > Are there SMP blackfin systems now? There were not last I checked,
> > and these issues matter only on SMP.
>
> Those are not cache coherent and a total trainwreck.
Indeed, I was ignoring the cache-incoherent "SMP" blackfin systems. ;-)
Thanx, Paul
next prev parent reply other threads:[~2012-02-10 18:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-01 9:33 on memory barriers and cachelines Peter Zijlstra
2012-02-01 14:22 ` Paul E. McKenney
2012-02-10 2:51 ` Jamie Lokier
2012-02-10 16:32 ` Paul E. McKenney
2012-02-10 18:13 ` Peter Zijlstra
2012-02-10 18:47 ` Paul E. McKenney [this message]
2012-02-01 17:17 ` Linus Torvalds
2012-02-01 17:29 ` Peter Zijlstra
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