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Date:      Tue, 22 Jan 2008 13:18:55 GMT
From:      Gerrit Kühn <gerrit@pmp.uni-hannover.de>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   kern/119895: Core2Duo CPUs not recognized by EST
Message-ID:  <200801221318.m0MDIt4a047256@www.freebsd.org>
Resent-Message-ID: <200801221330.m0MDU2iv094699@freefall.freebsd.org>

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>Number:         119895
>Category:       kern
>Synopsis:       Core2Duo CPUs not recognized by EST
>Confidential:   no
>Severity:       non-critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jan 22 13:30:02 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Gerrit Kühn
>Release:        FreeBSD 7.0-BETA4
>Organization:
Albert-Einstein-Institut
>Environment:
FreeBSD comet.terra.ger 7.0-BETA4 FreeBSD 7.0-BETA4 #0: Fri Dec 14 21:02:47 CET 2007     root@comet.terra.ger:/usr/obj/usr/src/sys/COMET.7  i386

>Description:
CPU is not recognized by est:

Copyright (c) 1992-2007 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 7.0-BETA4 #0: Fri Dec 14 21:02:47 CET 2007
    root@comet.terra.ger:/usr/obj/usr/src/sys/COMET.7
can't re-use a leaf (siots)!
can't re-use a leaf (conspeed)!
can't re-use a leaf (gdbspeed)!
can't re-use a leaf (conrclk)!
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Core(TM)2 CPU         T7200  @ 2.00GHz (1999.00-MHz
686-class CPU) Origin = "GenuineIntel"  Id = 0x6f6  Stepping = 6
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0xe3bd<SSE3,RSVD2,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM>
  AMD Features=0x20100000<NX,LM>
  AMD Features2=0x1<LAHF>
  Cores per package: 2
real memory  = 2137915392 (2038 MB)
avail memory = 2086670336 (1990 MB)
ACPI APIC Table: <IntelR AWRDACPI>
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
pnpbios: Bad PnP BIOS data checksum
ioapic0: Changing APIC ID to 2
ioapic0 <Version 2.0> irqs 0-23 on motherboard
[...]
acpi0: <IntelR AWRDACPI> on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
acpi0: reservation of 0, a0000 (3) failed
acpi0: reservation of 100000, 7f5e0000 (3) failed
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
cpu0: <ACPI CPU> on acpi0
acpi_perf0: <ACPI CPU Frequency Control> on cpu0
cpu1: <ACPI CPU> on acpi0
acpi_button0: <Power Button> on acpi0
[...]
SMP: AP CPU #1 Launched!
[...]


Jan 18 23:18:14 comet kernel: est1: <Enhanced SpeedStep Frequency Control>
on cpu1 
Jan 18 23:18:14 comet kernel: est: CPU supports Enhanced
Speedstep, but is not recognized. 
Jan 18 23:18:14 comet kernel: est: cpu_vendor GenuineIntel, msr
6130c2906000c29 
Jan 18 23:18:14 comet kernel: device_attach: est1 attach returned 6 
Jan 18 23:18:14 comet kernel: p4tcc0: <CPU Frequency Thermal Control> on
cpu0 


Similar results have been obtained by different people with E-series Core2 CPUs:

CPU: Intel(R) Core(TM)2 CPU          6420  @ 2.13GHz (2128.01-MHz 686-class CPU)
acpi0: <PTLTD   RSDT> on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
cpu0: <ACPI CPU> on acpi0
est0: <Enhanced SpeedStep Frequency Control> on cpu0
est: CPU supports Enhanced Speedstep, but is not recognized.
est: cpu_vendor GenuineIntel, msr 82a082a0600082a
device_attach: est0 attach returned 6
cpu1: <ACPI CPU> on acpi0
est1: <Enhanced SpeedStep Frequency Control> on cpu1
est: CPU supports Enhanced Speedstep, but is not recognized.
est: cpu_vendor GenuineIntel, msr 82a082a0600082a
device_attach: est1 attach returned 6
>How-To-Repeat:
Try to use cpufreq/est on mentioned CPUs.
>Fix:
Jeremy Chadwick wrote on -stable that he hopes to be able to create a patch soon.

>Release-Note:
>Audit-Trail:
>Unformatted:



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