Date: Mon, 16 Jan 2012 18:39:40 +1100 From: Lawrence Stewart <lstewart@freebsd.org> To: David Xu <davidxu@FreeBSD.org> Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, src-committers@FreeBSD.org Subject: Re: svn commit: r230201 - head/lib/libc/gen Message-ID: <4F13D43C.2060207@freebsd.org> In-Reply-To: <201201160615.q0G6FE9r019542@svn.freebsd.org> References: <201201160615.q0G6FE9r019542@svn.freebsd.org>
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On 01/16/12 17:15, David Xu wrote: > Author: davidxu > Date: Mon Jan 16 06:15:14 2012 > New Revision: 230201 > URL: http://svn.freebsd.org/changeset/base/230201 > > Log: > Insert read memory barriers. > > Modified: > head/lib/libc/gen/sem.c > head/lib/libc/gen/sem_new.c Could you please provide a bit more information about why these are necessary and why they weren't there before (or how you figured out that there was a problem without them)? I learn a lot by reading commit mail, but only when the log message and any added code comments explain the "what" *and* the "why". Cheers, Lawrence
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