Date: Wed, 26 Nov 2008 09:46:35 +0000 (UTC) From: Maxim Sobolev <sobomax@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r185331 - head/sys/i386/cpufreq Message-ID: <200811260946.mAQ9kZMi050509@svn.freebsd.org>
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Author: sobomax Date: Wed Nov 26 09:46:35 2008 New Revision: 185331 URL: http://svn.freebsd.org/changeset/base/185331 Log: Add Pentium D cores into the list that can't handle 12.5% and 25% throttle. My SMP kernel hangs when one of those is selected by powerd. Errata AA21 here: ftp://download.intel.com/design/PentiumXE/specupdt/31030717.pdf MFC after: 2 weeks Modified: head/sys/i386/cpufreq/p4tcc.c Modified: head/sys/i386/cpufreq/p4tcc.c ============================================================================== --- head/sys/i386/cpufreq/p4tcc.c Wed Nov 26 07:36:17 2008 (r185330) +++ head/sys/i386/cpufreq/p4tcc.c Wed Nov 26 09:46:35 2008 (r185331) @@ -188,9 +188,12 @@ p4tcc_attach(device_t dev) case 0x0a: case 0x12: case 0x13: + case 0x62: /* Pentium D B1: errata AA21 */ + case 0x64: /* Pentium D C1: errata AA21 */ + case 0x65: /* Pentium D D0: errata AA21 */ /* * These CPU models hang when set to 12.5% or 25%. - * See Errata N44 and P18l. + * See Errata N44, P18l and AA21. */ sc->set_count -= 2; break;
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