Abnormally high CPU usage on BETA3

Aaron Glenn aaron.glenn at gmail.com
Wed Sep 8 14:06:24 PDT 2004

I cvsup'ed to RELENG_5 of today, compiled a GENERIC kernel with
unneeded drivers stripped out (SCSI RAID, USB NIC, etc) and it seems
to be running just fine. the PCI interrupt routing table message still
shows, which worries me.

Thanks for any insights; please cc me as I'm not subscribed to
-current (though I probably should)


On Wed, 8 Sep 2004 15:58:10 -0500, Vulpes Velox <v.velox at vvelox.net> wrote:
> On Wed, 8 Sep 2004 12:13:18 -0700
> Aaron Glenn <aaron.glenn at gmail.com> wrote:
> > All,
> >
> > I don't recall having this issue with 5.3-BETA2, but to be honest I
> > can't be entirely sure. I just put a fresh install of BETA3 on a P4
> > 2.8GHz machine and while untaring ports.tgz I get bsdtar hovering
> > around 80% CPU usage. The machine becomes noticably sluggish, where
> > neither previous BETA did before. I find the "pcib1: could not get
> > PCI interrupt routing table for \\_SB_.PCI0.P0P2 - AE_NOT_FOUND"
> > line in my dmesg curious, but I'm not sure what, if anything, I
> > can/should do about that.
> >
> > Should I recompile my kernel disabling WITNESS and the like? Below
> > is a complete dmesg; the motherboard is an Intel SE7210TP1-E. Please
> > cc me as I'm not subscribed to -questions.
> > <SNIP>
> Current would probally be a better list to try out. I would also mess
> with APIC setting in the bios or compile them into the kernel.

FreeBSD 5.3-BETA3
uniball# dmesg
Copyright (c) 1992-2004 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 5.3-BETA3 #0: Sat Sep  4 12:07:48 UTC 2004
   root at harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC
WARNING: WITNESS option enabled, expect reduced performance.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz (2793.01-MHz 686-class CPU)
 Origin = "GenuineIntel"  Id = 0xf33  Stepping = 3
 Hyperthreading: 2 logical CPUs
real memory  = 1073676288 (1023 MB)
avail memory = 1041121280 (992 MB)
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID:  0
cpu1 (AP): APIC ID:  1
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 24-47 on motherboard
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <A M I OEMRSDT> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> at device 3.0 on pci0
pcib1: could not get PCI interrupt routing table for \\_SB_.PCI0.P0P2
pci1: <ACPI PCI bus> on pcib1
em0: <Intel(R) PRO/1000 Network Connection, Version - 1.7.25> port
0xbc00-0xbc1f mem 0xfc5e0000-0xfc5fffff irq 18 at device 1.0 on pci1
em0: Ethernet address: 00:02:b3:e9:b6:1c
em0:  Speed:N/A  Duplex:N/A
pcib2: <ACPI PCI-PCI bridge> at device 28.0 on pci0
pci2: <ACPI PCI bus> on pcib2
uhci0: <UHCI (generic) USB controller> port 0xe800-0xe81f irq 16 at
device 29.0 on pci0
usb0: <UHCI (generic) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <UHCI (generic) USB controller> port 0xec00-0xec1f irq 19 at
device 29.1 on pci0
usb1: <UHCI (generic) USB controller> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
pci0: <base peripheral> at device 29.4 (no driver attached)
pci0: <base peripheral, interrupt controller> at device 29.5 (no
driver attached)
pci0: <serial bus, USB> at device 29.7 (no driver attached)
pcib3: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci3: <ACPI PCI bus> on pcib3
pci3: <display, VGA> at device 0.0 (no driver attached)
fxp0: <Intel 82551 Pro/100 Ethernet> port 0xcc00-0xcc3f mem
0xfe6a0000-0xfe6bffff,0xfe6fe000-0xfe6fefff irq 17 at device 1.0 on
miibus0: <MII bus> on fxp0
inphy0: <i82555 10/100 media interface> on miibus0
inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fxp0: Ethernet address: 00:02:b3:e9:b6:1d
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel 6300ESB UDMA100 controller> port
0xfc00-0xfc0f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 31.1 on
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
atapci1: <Intel 6300ESB SATA150 controller> port
irq 18 at device 31.2 on pci0
ata2: channel #0 on atapci1
ata3: channel #1 on atapci1
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
acpi_button0: <Power Button> on acpi0
acpi_button1: <Sleep Button> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
sio1 port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
fdc0: <floppy drive controller (FDE)> port 0x3f7,0x3f0-0x3f5 irq 6 drq
2 on acpi0
orm0: <ISA Option ROMs> at iomem 0xe0000-0xe3fff,0xc0000-0xc7fff on isa0
pmtimer0 on isa0
ppc0: parallel port not found.
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounters tick every 10.000 msec
acpi_cpu: throttling enabled, 8 steps (100% to 12.5%), currently 100.0%
ATAPI_RESET time = 60us
acd0: CDROM <LTN526S/YS0N> at ata0-master UDMA33
ad4: 35304MB <WDC WD360GD-00FNA0/35.06K35> [71730/16/63] at ata2-master SATA150
ad6: 35304MB <WDC WD360GD-00FNA0/35.06K35> [71730/16/63] at ata3-master SATA150
SMP: AP CPU #1 Launched!
Mounting root from ufs:/dev/ad4s1a

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