Date: Mon, 23 Aug 2010 13:40:05 GMT From: John Baldwin <jhb@freebsd.org> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/145385: [cpu] Logical processor cannot be disabled for some SMT-enabled Intel procs Message-ID: <201008231340.o7NDe5jI041236@freefall.freebsd.org>
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The following reply was made to PR kern/145385; it has been noted by GNATS. From: John Baldwin <jhb@freebsd.org> To: Garrett Cooper <yaneurabeya@gmail.com> Cc: bug-followup@freebsd.org, gcooper@freebsd.org, jkim@freebsd.org, Attilio Rao <attilio@freebsd.org> Subject: Re: kern/145385: [cpu] Logical processor cannot be disabled for some SMT-enabled Intel procs Date: Mon, 23 Aug 2010 09:33:43 -0400 On Sunday, August 22, 2010 4:17:37 am Garrett Cooper wrote: > The following trivial patch fixes the issue on my W3520 processor; AFAICS it's what should be done after reading several of the specs because the logical count that's tracked with ebx is exactly what is needed for logical_cpus (it's an absolute quantity). I need to verify it with a multi-cpu topology at work (the two r710s I was testing with E-series Xeons on aren't available remotely right now). > Thanks! > -Garrett Jung-uk Kim and Attilio Rao have both been looking at this code recently and are in a better position to review the patch in the PR. -- John Baldwinhelp
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