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Date:   Wed, 13 Feb 2019 11:31:27 -0800
From:   "Paul E. McKenney" <paulmck@...ux.ibm.com>
To:     "Luck, Tony" <tony.luck@...el.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Will Deacon <will.deacon@....com>,
        linux-arch <linux-arch@...r.kernel.org>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Arnd Bergmann <arnd@...db.de>,
        Andrea Parri <andrea.parri@...rulasolutions.com>,
        Daniel Lustig <dlustig@...dia.com>,
        David Howells <dhowells@...hat.com>,
        Alan Stern <stern@...land.harvard.edu>
Subject: Re: [RFC PATCH] docs/memory-barriers.txt: Rewrite "KERNEL I/O
 BARRIER EFFECTS" section

On Wed, Feb 13, 2019 at 06:43:41PM +0000, Luck, Tony wrote:
> > I think the last time this came up, it was said that those people still
> > running Linux on Itanium were running old distro kernels, not upstream.
> >
> > So yeah, we could probably do whatever and nobody would ever notice,
> > except maybe Al, who is rumoured to still have an ia64 :-)
> 
> I haven't heard of anyone taking upstream kernels and actually using them
> for production work in a long time. It's mostly just a few folks keeping ia64
> alive "just because" these days.  I doubt any of them have an SGI Altix
> to test on (so realistically Altix was probably broken upstream many releases
> ago).

That would require a well-healed computer collector, wouldn't it?  Just to
run the thing.  ;-)

								Thanx, Paul

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