Date: Sat, 19 Nov 2005 20:26:15 GMT From: Francis Dupont <Francis.Dupont@enst-bretagne.fr> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/89294: unknown CPU (i386/amd64) Features2 Message-ID: <200511192026.jAJKQF2H028377@www.freebsd.org> Resent-Message-ID: <200511192030.jAJKUJki072637@freefall.freebsd.org>
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>Number: 89294 >Category: i386 >Synopsis: unknown CPU (i386/amd64) Features2 >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-i386 >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Nov 19 20:30:19 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Francis Dupont >Release: 6.0 Release >Organization: GET/ENST Bretagne >Environment: FreeBSD diane.ipv6.rennes.enst-bretagne.fr 6.0-RELEASE FreeBSD 6.0-RELEASE #0: Wed Nov 2 19:07:38 UTC 2005 root@rat.samsco.home:/usr/obj/usr/src/sys/GENERIC amd64 >Description: CPUINFO decoding gives: CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (2992.59-MHz K8-class CPU) Origin = "GenuineIntel" Id = 0xf43 Stepping = 3 Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=0x649d<SSE3,RSVD2,MON,DS_CPL,EST,CNTX-ID,CX16,<b14>> AMD Features=0x20100800<SYSCALL,NX,LM> The b14 is defined for i386 and amd64 in the last Intel AP-485 by: Table 6.Feature Flag Values Reported in the ECX Register (aka Features2) bit: 14, name: xTFR, description: Send Task Priority Messages >How-To-Repeat: Boot i386 or amd64 6.0-RELEASE (or lower) kernel on a PC with a recent Intel processor (in my case a recent Dell Optiplex GX 620 with IMHO a Pentium 4 630). >Fix: Update the bit 14 entry in cpu_feature2 printf() in /sys/{i386/i386,amd64/amd64}/identcpu.c from "\017<b14>" to "\017TPR" /* Task Priority Messages */ >Release-Note: >Audit-Trail: >Unformatted:
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