The following reply was made to PR kern/145385; it has been noted by GNATS.
From: Garrett Cooper <[email protected]> To: [email protected], [email protected] Cc: [email protected] Subject: Re: kern/145385: [cpu] Logical processor cannot be disabled for some SMT-enabled Intel procs Date: Sun, 22 Aug 2010 01:17:37 -0700 --Apple-Mail-10--784820364 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii 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 --Apple-Mail-10--784820364 Content-Disposition: attachment; filename=kern-145385.diff Content-Type: application/octet-stream; name="kern-145385.diff" Content-Transfer-Encoding: 7bit Index: sys/amd64/amd64/mp_machdep.c =================================================================== --- sys/amd64/amd64/mp_machdep.c (revision 211309) +++ sys/amd64/amd64/mp_machdep.c (working copy) @@ -203,7 +203,7 @@ cnt++; } if (type == CPUID_TYPE_SMT) - cpu_logical = cnt; + cpu_logical = logical_cpus = cnt; else if (type == CPUID_TYPE_CORE) cpu_cores = cnt; } --Apple-Mail-10--784820364-- _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "[email protected]"
