Date: Tue, 18 Sep 2012 16:12:56 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: attilio@FreeBSD.org Cc: arch@FreeBSD.org Subject: Re: Aliasing issue with TAILQ on ppc64 ? Message-ID: <22397.1347984776@critter.freebsd.dk> In-Reply-To: Your message of "Tue, 18 Sep 2012 17:10:44 %2B0100." <CAJ-FndDP3RSjgL_fXap2DyDZdXW3iQ_=jnAx_cCx5uFhFeaq5w@mail.gmail.com>
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In message <CAJ-FndDP3RSjgL_fXap2DyDZdXW3iQ_=jnAx_cCx5uFhFeaq5w@mail.gmail.com> , Attilio Rao writes: >Stop acting like the old teacher speaking to stupid students. A very apt metaphor in this case. Adding memory barriers to the TAILQ macros is not something I would do lightly, but it is, obviously, one of the possibilties. I'd far prefer if we could get away with sticking a couple of volatile's in there. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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