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Date:      Wed, 4 Mar 1998 19:59:30 -0500 (EST)
From:      green@feldman.dyn.ml.org
To:        FreeBSD-gnats-submit@FreeBSD.ORG
Subject:   kern/5918: kernel reports 0.00 MHz
Message-ID:  <199803050059.TAA00538@feldman.dyn.ml.org>

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>Number:         5918
>Category:       kern
>Synopsis:       kernel reports wrong CPU MHz
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:
>Keywords:
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Mar  4 17:00:01 PST 1998
>Last-Modified:
>Originator:     Brian Feldman
>Organization:
none 
>Release:        FreeBSD 3.0-CURRENT i386
>Environment:

This is a FreeBSD 3.0-CURRENT machine, which is cvsupped daily. It runs on a EIDE hard drive, has 80 MB RAM, and runs a ~210 MHz overclocked K6-200 CPU.
>Description:

Since only recently, the kernel will report the wrong speed of the CPU (0.00 MHz). This does not seem to have any affect anything but the actual printing of the CPU speed.
dmesg:
Copyright (c) 1992-1998 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California. All rights reserved.
FreeBSD 3.0-CURRENT #0: Wed Mar  4 19:35:37 EST 1998
    root@feldman.dyn.ml.org:/usr/src/sys/compile/FELDMAN
Timecounter "i8254"  frequency 1193182 Hz  cost 2190 ns
CPU: AMD-K6tm w/ multimedia extensions (0.00-MHz 586-class CPU)
  Origin = "AuthenticAMD"  Id = 0x561  Stepping=1
  Features=0x8001bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,MMX>
real memory  = 83886080 (81920K bytes)
avail memory = 78364672 (76528K bytes)
Probing for devices on PCI bus 0:
chip0: <Intel 82437VX PCI cache memory controller> rev 0x02 on pci0.0.0
chip1: <Intel 82371SB PCI to ISA bridge> rev 0x01 on pci0.7.0
ide_pci0: <Intel PIIX3 Bus-master IDE controller> rev 0x00 on pci0.7.1
vga0: <S3 ViRGE DX/GX graphics accelerator> rev 0x01 int a irq 10 on pci0.13.0
Probing for PnP devices:
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
sio3 at 0x2e8-0x2ef irq 11 on isa
sio3: type 16550A
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
wdc0 at 0x1f0-0x1f7 irq 14 flags 0xa0ffa0ff on isa
wdc0: unit 0 (wd0): <Maxtor 71626 AP>, DMA, 32-bit, multi-block-32
wd0: 1554MB (3183264 sectors), 3158 cyls, 16 heads, 63 S/T, 512 B/S
wdc0: unit 1 (atapi): <NEC                 CD-ROM DRIVE:285/3.04>, removable, dma, iordy
wcd0: 2067Kb/sec, 128Kb cache, audio play, 16 volume levels, ejectable tray
wcd0: no disc inside, unlocked
wdc1 at 0x170-0x177 irq 15 flags 0xa0ffa0ff on isa
wdc1: unit 0 (wd2): <Maxtor 7540 AV>, 32-bit, multi-block-8
wd2: 514MB (1054368 sectors), 1046 cyls, 16 heads, 63 S/T, 512 B/S
sb0 at 0x220 irq 5 drq 1 on isa
snd0: <SoundBlaster 16 4.13>
sbxvi0 at ? drq 6 on isa
snd0: <SoundBlaster 16 4.13>
sbmidi0 at 0x330 on isa
snd0: <SoundBlaster MPU-401>
opl0 at 0x388 on isa
snd0: <Yamaha OPL3 FM>
joy0 at 0x201 on isa
joy0: joystick
npx0 on motherboard
npx0: INT 16 interface
apm0 on isa
apm: found APM BIOS version 1.2
IP packet filtering initialized, divert enabled, logging disabled

>How-To-Repeat:

I use this kernel config file:
#
# GENERIC -- Generic machine with WD/AHx/NCR/BTx family disks
#
# For more information read the handbook part System Administration ->
# Configuring the FreeBSD Kernel -> The Configuration File.
# The handbook is available in /usr/share/doc/handbook or online as
# latest version from the FreeBSD World Wide Web server
# <URL:http://www.FreeBSD.ORG/>;
#
# An exhaustive list of options and more detailed explanations of the
# device lines is present in the ./LINT configuration file. If you are
# in doubt as to the purpose or necessity of a line, check first in LINT.
#
#       $Id: GENERIC,v 1.102 1998/01/11 02:16:38 jkh Exp $

machine         "i386"
cpu             "I586_CPU"
cpu             "I686_CPU"
ident           CUSTOM
maxusers        100

options         MATH_EMULATE            #Support for x87 emulation
options         INET                    #InterNETworking
options         FFS                     #Berkeley Fast Filesystem
options         NFS                     #Network Filesystem
options         MSDOSFS                 #MSDOS Filesystem
options         "CD9660"                #ISO 9660 Filesystem
options         PROCFS                  #Process filesystem
options         "COMPAT_43"             #Compatible with BSD 4.3 [KEEP THIS!]
options         SCSI_DELAY=15           #Be pessimistic about Joe SCSI device
options         BOUNCE_BUFFERS          #include support for DMA bounce buffers
options         UCONSOLE                #Allow users to grab the console
options         FAILSAFE                #Be conservative
options         USERCONFIG              #boot -c editor
options         VISUAL_USERCONFIG       #visual boot -c editor
options         "NO_F00F_HACK"
options         PERFMON
options         "MAXMEM=(128*1024)"
options         IPFIREWALL
options         IPDIVERT
options         "VM86"

config          kernel  root on wd0

controller      isa0
controller      pnp0
controller      snd0
device sb0      at isa? port 0x220 irq 5 drq 1 vector sbintr
device sbxvi0   at isa? drq 6
device sbmidi0  at isa? port 0x330
device opl0     at isa? port 0x388
device          joy0    at isa? port "IO_GAME"

controller      eisa0
controller      pci0

controller      fdc0    at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr
disk            fd0     at fdc0 drive 0
disk            fd1     at fdc0 drive 1
tape            ft0     at fdc0 drive 2

controller      wdc0    at isa? port "IO_WD1" bio irq 14 flags 0xa0ffa0ff vector
 wdintr
disk            wd0     at wdc0 drive 0
disk            wd1     at wdc0 drive 1

controller      wdc1    at isa? port "IO_WD2" bio irq 15 flags 0xa0ffa0ff vector
 wdintr
disk            wd2     at wdc1 drive 0
disk            wd3     at wdc1 drive 1

options         ATAPI           #Enable ATAPI support for IDE bus
options         ATAPI_STATIC    #Don't do it as an LKM
device          wcd0    #IDE CD-ROM
device          wfd0
# A single entry for any of these controllers (ncr, ahb, ahc, amd) is
# sufficient for any number of installed devices.
controller      ncr0
controller      amd0
controller      ahb0
controller      ahc0

controller      bt0     at isa? port "IO_BT0" bio irq ? vector bt_isa_intr
controller      uha0    at isa? port "IO_UHA0" bio irq ? drq 5 vector uhaintr
controller      aha0    at isa? port "IO_AHA0" bio irq ? drq 5 vector ahaintr
controller      aic0    at isa? port 0x340 bio irq 11 vector aicintr
controller      nca0    at isa? port 0x1f88 bio irq 10 vector ncaintr
controller      nca1    at isa? port 0x350 bio irq 5 vector ncaintr
controller      sea0    at isa? bio irq 5 iomem 0xc8000 iosiz 0x2000 vector seai
ntr

controller      scbus0

device          sd0

device          od0     #See LINT for possible `od' options.

device          st0

device          cd0     #Only need one of these, the code dynamically grows

device          wt0     at isa? port 0x300 bio irq 5 drq 1 vector wtintr
device          mcd0    at isa? port 0x300 bio irq 10 vector mcdintr

controller      matcd0  at isa? port 0x230 bio

device          scd0    at isa? port 0x230 bio

# syscons is the default console driver, resembling an SCO console
device          sc0     at isa? port "IO_KBD" tty irq 1 vector scintr
# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
#device         vt0     at isa? port "IO_KBD" tty irq 1 vector pcrint
#options                XSERVER                 # support for X server
#options                FAT_CURSOR              # start with block cursor
# If you have a ThinkPAD, uncomment this along with the rest of the PCVT lines
#options                PCVT_SCANSET=2          # IBM keyboards are non-std

device          npx0    at isa? port "IO_NPX" irq 13 vector npxintr

#
# Laptop support (see LINT for more options)
#
device          apm0    at isa? conflicts # Advanced Power Management

# PCCARD (PCMCIA) support
#controller     card0
#device         pcic0   at card?
#device         pcic1   at card?

device          sio0    at isa? port "IO_COM1" flags 0x10 tty irq 4 vector sioin
tr
device          sio1    at isa? port "IO_COM2" tty irq 3 vector siointr
device          sio2    at isa? disable port "IO_COM3" tty irq 5 vector siointr
device          sio3    at isa? port "IO_COM4" tty irq 11 vector siointr

device          lpt0    at isa? port? tty irq 7 vector lptintr
device          lpt1    at isa? port? tty
device          mse0    at isa? port 0x23c tty irq 5 vector mseintr

device          psm0    at isa? port "IO_KBD" conflicts tty irq 12 vector psmint
r

# Order is important here due to intrusive probes, do *not* alphabetize
# this list of network interfaces until the probes have been fixed.
# Right now it appears that the ie0 must be probed before ep0. See
# revision 1.20 of this file.
device de0
device fxp0
device vx0

ce ed0 at isa? port 0x280 net irq 10 iomem 0xd8000 vector edintr
device ie0 at isa? port 0x300 net irq 10 iomem 0xd0000 vector ieintr
device ep0 at isa? port 0x300 net irq 10 vector epintr
device ex0 at isa? port? net irq? vector exintr
device fe0 at isa? port 0x300 net irq ? vector feintr
device le0 at isa? port 0x300 net irq 5 iomem 0xd0000 vector le_intr
device lnc0 at isa? port 0x280 net irq 10 drq 0 vector lncintr
device ze0 at isa? port 0x300 net irq 10 iomem 0xd8000 vector zeintr
device zp0 at isa? port 0x300 net irq 10 iomem 0xd8000 vector zpintr

pseudo-device   loop
pseudo-device   ether
pseudo-device   sl      1
pseudo-device   ppp     2
pseudo-device   tun     2
pseudo-device   pty     256
pseudo-device   gzip            # Exec gzipped a.out's
pseudo-device   vn      4
pseudo-device   snp     4
pseudo-device   bpfilter        4       #Berkeley packet filter
pseudo-device   ether
pseudo-device   sl      1
pseudo-device   ppp     2
pseudo-device   tun     2
pseudo-device   pty     256
pseudo-device   gzip            # Exec gzipped a.out's
pseudo-device   vn      4
pseudo-device   snp     4
pseudo-device   bpfilter        4       #Berkeley packet filter

# KTRACE enables the system-call tracing facility ktrace(2).
# This adds 4 KB bloat to your kernel, and slightly increases
# the costs of each syscall.
options         KTRACE          #kernel tracing

# This provides support for System V shared memory.
#
options         "SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)"
options         SHMMAXPGS=4100
options         SYSVSHM
options         SYSVSEM
options         SYSVMSG
options         USER_LDT                #allow user-level control of i386 ldt

>Fix:
>Audit-Trail:
>Unformatted:

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