Date: Sun, 10 Sep 2000 15:36:43 +0300 From: Valentin Nechayev <netch@segfault.kiev.ua> To: freebsd-current@freebsd.org Subject: load average is 1 when no processes active; etc. Message-ID: <20000910153643.A799@nn.kiev.ua>
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System in question is:
root@nn:~##uname -mrs
FreeBSD 5.0-CURRENT i386
root@nn:~##grep FreeBSD_version /usr/include/sys/param.h
#undef __FreeBSD_version
#define __FreeBSD_version 500012 /* Master, propagated to newvers */
root@nn:~##
cvsup was Sep 8, approximately at 18:00 GMT.
`top -I' output:
==={
last pid: 811; load averages: 1.01, 0.97, 0.67 up 0+00:16:12 23:26:26
24 processes: 1 running, 21 sleeping, 2 stopped
CPU states: 0.0% user, 0.0% nice, 0.0% system, 7.9% interrupt, 92.1% idle
Mem: 7524K Active, 9788K Inact, 5812K Wired, 8K Cache, 6336K Buf, 5300K Free
Swap: 300M Total, 300M Free
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
811 root 46 0 1916K 1176K RUN 0:00 0.00% 0.00% top
===}
A few seconds after starting:
root@nn:~##uptime
11:30PM up 50 secs, 1 user, load averages: 0.88, 0.22, 0.08
Of course, real LA is less than 0.1.
The same system has another strangeness - `microuptime() went backwards':
==={ /var/run/dmesg.boot
Copyright (c) 1992-2000 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 5.0-CURRENT #0: Sat Sep 9 08:19:58 EEST 2000
root@nn.kiev.ua:/usr/src.cr/sys/compile/nn10
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 334092166 Hz
CPU: AMD-K6(tm) 3D processor (334.09-MHz 586-class CPU)
Origin = "AuthenticAMD" Id = 0x58c Stepping = 12
Features=0x8021bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX>
AMD Features=0x80000800<SYSCALL,3DNow!>
real memory = 33554432 (32768K bytes)
avail memory = 28540928 (27872K bytes)
Preloaded elf kernel "kernel.ko" at 0xc0426000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc04260a0.
K6-family MTRR support enabled (2 registers)
md0: Malloc disk
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
isab0: <Intel 82371AB PCI to ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0xf000-0xf00f at device 7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
pci0: <Intel 82371AB/EB (PIIX4) USB controller> at 7.2
pci0: <Intel 82371AB Power management controller> at 7.3
pci0: <S3 ViRGE DX/GX graphics accelerator> at 17.0 irq 11
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/16 bytes threshold
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
plip0: <PLIP network interface> on ppbus0
ppi0: <Parallel I/O> on ppbus0
sbc0: <ESS ES1868> at port 0x220-0x22f,0x388-0x38b,0x330-0x331 irq 5 drq 1,0 on isa0
pcm0: <ESS 18xx DSP> on sbc0
unknown: <PNP0303> can't assign resources
pca0: <AT-style speaker sound> at port 0x61 on isa0
unknown: <PNP0501> can't assign resources
unknown: <PNP0700> can't assign resources
unknown: <PNP0401> can't assign resources
unknown: <PNP0501> can't assign resources
IP packet filtering initialized, divert enabled, rule-based forwarding disabled, default to accept, logging limited to 100 packets/entry by default
DUMMYNET initialized (000608)
IPv6 packet filtering initialized, default to accept, logging limited to 100 packets/entry
IPsec: Initialized Security Association Processing.
ncp_load: [210-213]
IP Filter: v3.4.9 initialized. Default = pass all, Logging = enabled
microuptime() went backwards (1.3891137 -> 0.596214)
microuptime() went backwards (1.3891137 -> 0.596655)
microuptime() went backwards (1.3891137 -> 0.597078)
microuptime() went backwards (1.3891137 -> 0.597480)
microuptime() went backwards (1.3891137 -> 0.597795)
microuptime() went backwards (1.3891137 -> 0.598094)
microuptime() went backwards (1.3891137 -> 0.598412)
microuptime() went backwards (1.3891137 -> 0.598708)
microuptime() went backwards (1.3891137 -> 0.599019)
microuptime() went backwards (1.3891137 -> 0.599489)
microuptime() went backwards (1.3891137 -> 0.600060)
microuptime() went backwards (1.3891137 -> 0.600484)
microuptime() went backwards (1.3891137 -> 0.600921)
microuptime() went backwards (1.3891137 -> 0.601532)
microuptime() went backwards (1.3891137 -> 0.601965)
microuptime() went backwards (1.3891137 -> 0.602373)
microuptime() went backwards (1.3891137 -> 0.602789)
microuptime() went backwards (1.3891137 -> 0.603218)
microuptime() went backwards (1.3891137 -> 0.603658)
microuptime() went backwards (1.3891137 -> 0.604059)
microuptime() went backwards (1.3891137 -> 0.604479)
microuptime() went backwards (1.3891137 -> 0.604902)
microuptime() went backwards (1.3891137 -> 0.605318)
microuptime() went backwards (1.3891137 -> 0.605743)
ad0: 14664MB <IBM-DJNA-351520> [29795/16/63] at ata0-master using UDMA33
(null): failure to execute ATAPI packet command
microuptime() went backwards (1.3891137 -> 0.733477)
microuptime() went backwards (1.3891137 -> 0.733885)
microuptime() went backwards (1.3891137 -> 0.734296)
microuptime() went backwards (1.3891137 -> 0.734709)
microuptime() went backwards (1.3891137 -> 0.735124)
microuptime() went backwards (1.3891137 -> 0.735548)
microuptime() went backwards (1.3891137 -> 0.735960)
acd0: CDROM <DCX8 1F 0100- 99169 .> at ata1-slave using PIO0
Mounting root from ufs:/dev/ad0s4a
microuptime() went backwards (1.3891137 -> 0.737877)
microuptime() went backwards (1.3891137 -> 0.738868)
microuptime() went backwards (1.3891137 -> 0.739302)
microuptime() went backwards (1.3891137 -> 0.741334)
microuptime() went backwards (1.3891137 -> 0.741642)
microuptime() went backwards (1.3891137 -> 0.741940)
microuptime() went backwards (1.3891137 -> 0.745399)
microuptime() went backwards (1.3891137 -> 0.745844)
microuptime() went backwards (1.3891137 -> 0.746355)
microuptime() went backwards (1.3891137 -> 0.746769)
microuptime() went backwards (1.3891137 -> 0.747182)
microuptime() went backwards (1.3891137 -> 0.751334)
microuptime() went backwards (1.3891137 -> 0.751750)
microuptime() went backwards (1.3891137 -> 0.752162)
microuptime() went backwards (1.3891137 -> 0.754490)
microuptime() went backwards (1.3891137 -> 0.754907)
microuptime() went backwards (1.3891137 -> 0.758873)
microuptime() went backwards (1.3891137 -> 0.759308)
microuptime() went backwards (1.3891137 -> 0.759847)
microuptime() went backwards (1.3891137 -> 0.761335)
microuptime() went backwards (1.3891137 -> 0.761738)
microuptime() went backwards (1.3891137 -> 0.762151)
microuptime() went backwards (1.3891137 -> 0.762565)
microuptime() went backwards (1.3891137 -> 0.762983)
microuptime() went backwards (1.3891137 -> 0.766245)
microuptime() went backwards (1.3891137 -> 0.766678)
microuptime() went backwards (1.3891137 -> 0.767159)
microuptime() went backwards (1.3891137 -> 0.770116)
microuptime() went backwards (1.3891137 -> 0.770417)
microuptime() went backwards (1.3891137 -> 0.771333)
microuptime() went backwards (1.3891137 -> 0.771751)
microuptime() went backwards (1.3891137 -> 0.772175)
microuptime() went backwards (1.3891137 -> 0.774745)
microuptime() went backwards (1.3891137 -> 0.775169)
microuptime() went backwards (1.3891137 -> 0.775642)
microuptime() went backwards (1.3891137 -> 0.777929)
microuptime() went backwards (1.3891137 -> 0.778343)
microuptime() went backwards (1.3891137 -> 0.781333)
microuptime() went backwards (1.3891137 -> 0.781755)
microuptime() went backwards (1.3891137 -> 0.782167)
microuptime() went backwards (1.3891137 -> 0.785741)
microuptime() went backwards (1.3891137 -> 0.786157)
microuptime() went backwards (1.3891137 -> 0.790786)
microuptime() went backwards (1.3891137 -> 0.791221)
microuptime() went backwards (1.3891137 -> 0.791705)
microuptime() went backwards (1.3891137 -> 0.792131)
microuptime() went backwards (1.3891137 -> 0.792548)
microuptime() went backwards (1.3891137 -> 0.793555)
microuptime() went backwards (1.3891137 -> 0.793981)
microuptime() went backwards (1.3891137 -> 0.800430)
microuptime() went backwards (1.3891137 -> 0.800893)
microuptime() went backwards (1.3891137 -> 0.801410)
microuptime() went backwards (1.3891137 -> 0.801835)
microuptime() went backwards (1.3891137 -> 0.802248)
microuptime() went backwards (1.3891137 -> 0.802658)
microuptime() went backwards (1.3891137 -> 0.809180)
microuptime() went backwards (1.3891137 -> 0.809619)
microuptime() went backwards (1.3891137 -> 0.811333)
microuptime() went backwards (1.3891137 -> 0.811754)
microuptime() went backwards (1.3891137 -> 0.812170)
microuptime() went backwards (1.3891137 -> 0.815347)
microuptime() went backwards (1.3891137 -> 0.815787)
microuptime() went backwards (1.3891137 -> 0.816258)
microuptime() went backwards (1.3891137 -> 0.816992)
microuptime() went backwards (1.3891137 -> 0.817407)
microuptime() went backwards (1.3891137 -> 0.821333)
microuptime() went backwards (1.3891137 -> 0.821752)
microuptime() went backwards (1.3891137 -> 0.822163)
microuptime() went backwards (1.3891137 -> 0.824805)
microuptime() went backwards (1.3891137 -> 0.825227)
microuptime() went backwards (1.3891137 -> 0.831335)
microuptime() went backwards (1.3891137 -> 0.831738)
microuptime() went backwards (1.3891137 -> 0.832149)
microuptime() went backwards (1.3891137 -> 0.832618)
microuptime() went backwards (1.3891137 -> 0.833019)
microuptime() went backwards (1.3891137 -> 0.834491)
microuptime() went backwards (1.3891137 -> 0.834924)
microuptime() went backwards (1.3891137 -> 0.835453)
microuptime() went backwards (1.3891137 -> 0.840432)
microuptime() went backwards (1.3891137 -> 0.840837)
microuptime() went backwards (1.3891137 -> 0.841335)
microuptime() went backwards (1.3891137 -> 0.841637)
microuptime() went backwards (1.3891137 -> 0.841931)
microuptime() went backwards (1.3891137 -> 0.848243)
microuptime() went backwards (1.3891137 -> 0.848655)
microuptime() went backwards (1.3891137 -> 0.851333)
microuptime() went backwards (1.3891137 -> 0.851753)
microuptime() went backwards (1.3891137 -> 0.852167)
microuptime() went backwards (1.3891137 -> 0.856058)
microuptime() went backwards (1.3891137 -> 0.856356)
microuptime() went backwards (1.3891137 -> 0.858910)
microuptime() went backwards (1.3891137 -> 0.859344)
microuptime() went backwards (1.3891137 -> 0.859837)
microuptime() went backwards (1.3891137 -> 0.861335)
microuptime() went backwards (1.3891137 -> 0.861745)
microuptime() went backwards (1.3891137 -> 0.862155)
microuptime() went backwards (1.3891137 -> 0.863869)
microuptime() went backwards (1.3891137 -> 0.864283)
microuptime() went backwards (1.3891137 -> 0.868086)
microuptime() went backwards (1.3891137 -> 0.868530)
microuptime() went backwards (1.3891137 -> 0.869006)
microuptime() went backwards (1.3891137 -> 0.871335)
microuptime() went backwards (1.3891137 -> 0.871748)
microuptime() went backwards (1.3891137 -> 0.872149)
microuptime() went backwards (1.3891137 -> 0.872563)
microuptime() went backwards (1.3891137 -> 0.879495)
microuptime() went backwards (1.3891137 -> 0.879914)
microuptime() went backwards (1.3891137 -> 0.880341)
microuptime() went backwards (1.3891137 -> 0.880828)
microuptime() went backwards (1.3891137 -> 0.881335)
microuptime() went backwards (1.3891137 -> 0.881760)
microuptime() went backwards (1.3891137 -> 0.882171)
microuptime() went backwards (1.3891137 -> 0.887308)
microuptime() went backwards (1.3891137 -> 0.887728)
microuptime() went backwards (1.3891137 -> 0.890568)
microuptime() went backwards (1.3891137 -> 0.891002)
microuptime() went backwards (1.3891137 -> 0.891497)
microuptime() went backwards (1.3891137 -> 0.891918)
microuptime() went backwards (1.3891137 -> 0.892331)
microuptime() went backwards (1.3891137 -> 0.895122)
microuptime() went backwards (1.3891137 -> 0.895548)
microuptime() went backwards (1.3891137 -> 0.901334)
microuptime() went backwards (1.3891137 -> 0.901757)
microuptime() went backwards (1.3891137 -> 0.902210)
microuptime() went backwards (1.3891137 -> 0.902935)
microuptime() went backwards (1.3891137 -> 0.903343)
microuptime() went backwards (1.3891137 -> 0.903753)
microuptime() went backwards (1.3891137 -> 0.904187)
microuptime() went backwards (1.3891137 -> 0.904673)
microuptime() went backwards (1.3891137 -> 0.910748)
microuptime() went backwards (1.3891137 -> 0.911169)
microuptime() went backwards (1.3891137 -> 0.911591)
microuptime() went backwards (1.3891137 -> 0.912020)
microuptime() went backwards (1.3891137 -> 0.912457)
microuptime() went backwards (1.3891137 -> 0.912899)
microuptime() went backwards (1.3891137 -> 0.918561)
microuptime() went backwards (1.3891137 -> 0.918976)
microuptime() went backwards (1.3891137 -> 0.921335)
microuptime() went backwards (1.3891137 -> 0.921758)
microuptime() went backwards (1.3891137 -> 0.922169)
microuptime() went backwards (1.3891137 -> 0.926373)
microuptime() went backwards (1.3891137 -> 0.926792)
microuptime() went backwards (1.3891137 -> 0.930541)
microuptime() went backwards (1.3891137 -> 0.930973)
microuptime() went backwards (1.3891137 -> 0.931458)
microuptime() went backwards (1.3891137 -> 0.931877)
microuptime() went backwards (1.3891137 -> 0.932286)
microuptime() went backwards (1.3891137 -> 0.934187)
microuptime() went backwards (1.3891137 -> 0.934613)
microuptime() went backwards (1.3891137 -> 0.941335)
microuptime() went backwards (1.3891137 -> 0.941659)
microuptime() went backwards (1.3891137 -> 0.941950)
microuptime() went backwards (1.3891137 -> 0.942242)
microuptime() went backwards (1.3891137 -> 0.942540)
microuptime() went backwards (1.3891137 -> 0.946729)
microuptime() went backwards (1.3891137 -> 0.947152)
microuptime() went backwards (1.3891137 -> 0.947630)
microuptime() went backwards (1.3891137 -> 0.949812)
microuptime() went backwards (1.3891137 -> 0.950227)
microuptime() went backwards (1.3891137 -> 0.951336)
microuptime() went backwards (1.3891137 -> 0.951761)
microuptime() went backwards (1.3891137 -> 0.952172)
microuptime() went backwards (1.3891137 -> 0.956544)
microuptime() went backwards (1.3891137 -> 0.956862)
microuptime() went backwards (1.3891137 -> 0.957220)
microuptime() went backwards (1.3891137 -> 0.957625)
microuptime() went backwards (1.3891137 -> 0.958047)
microuptime() went backwards (1.3891137 -> 0.961335)
microuptime() went backwards (1.3891137 -> 0.961750)
microuptime() went backwards (1.3891137 -> 0.962156)
microuptime() went backwards (1.3891137 -> 0.965437)
microuptime() went backwards (1.3891137 -> 0.965841)
microuptime() went backwards (1.3891137 -> 0.971336)
microuptime() went backwards (1.3891137 -> 0.971634)
microuptime() went backwards (1.3891137 -> 0.972029)
microuptime() went backwards (1.3891137 -> 0.972462)
microuptime() went backwards (1.3891137 -> 0.972946)
microuptime() went backwards (1.3891137 -> 0.973369)
microuptime() went backwards (1.3891137 -> 0.973785)
microuptime() went backwards (1.3891137 -> 0.981063)
microuptime() went backwards (1.3891137 -> 0.981480)
microuptime() went backwards (1.3891137 -> 0.981894)
microuptime() went backwards (1.3891137 -> 0.982304)
microuptime() went backwards (1.3891137 -> 0.988875)
microuptime() went backwards (1.3891137 -> 0.989295)
microuptime() went backwards (1.3891137 -> 0.991055)
microuptime() went backwards (1.3891137 -> 0.991487)
microuptime() went backwards (1.3891137 -> 0.991914)
microuptime() went backwards (1.3891137 -> 0.992329)
microuptime() went backwards (1.3891137 -> 0.992850)
microuptime() went backwards (1.3891137 -> 0.996689)
microuptime() went backwards (1.3891137 -> 0.997118)
microuptime() went backwards (1.3891137 -> 1.001335)
microuptime() went backwards (1.3891137 -> 1.001771)
microuptime() went backwards (1.3891137 -> 1.002193)
microuptime() went backwards (1.3891137 -> 1.004501)
microuptime() went backwards (1.3891137 -> 1.004902)
microuptime() went backwards (1.3891137 -> 1.011336)
microuptime() went backwards (1.3891137 -> 1.011741)
microuptime() went backwards (1.3891137 -> 1.012148)
microuptime() went backwards (1.3891137 -> 1.012558)
microuptime() went backwards (1.3891137 -> 1.012969)
microuptime() went backwards (1.3891137 -> 1.013574)
microuptime() went backwards (1.3891137 -> 1.013906)
microuptime() went backwards (1.3891137 -> 1.014387)
microuptime() went backwards (1.3891137 -> 1.020128)
microuptime() went backwards (1.3891137 -> 1.020545)
microuptime() went backwards (1.3891137 -> 1.021337)
microuptime() went backwards (1.3891137 -> 1.021765)
microuptime() went backwards (1.3891137 -> 1.022185)
microuptime() went backwards (1.3891137 -> 1.022617)
===}
Config is:
==={
machine i386
cpu I486_CPU
cpu I586_CPU
cpu I686_CPU
ident nn11
maxusers 32
hints "GENERIC.hints" #Default places to look for devices.
options INET #InterNETworking
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep this!]
options MFS #Memory 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=5000
options USERCONFIG #boot -c editor
options VISUAL_USERCONFIG #visual boot -c editor
options INCLUDE_CONFIG_FILE
options KTRACE #ktrace(1) support
options SYSVSHM #SYSV-style shared memory
options SYSVMSG #SYSV-style message queues
options SYSVSEM #SYSV-style semaphores
options P1003_1B #Posix P1003_1B real-time extensions
options _KPOSIX_PRIORITY_SCHEDULING
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
options RANDOMDEV
device isa
device eisa
device pci
options COMPAT_OLDISA # compatability shims for lnc, fe, le
options COMPAT_OLDPCI # compatability shims for lnc, vx
# Floppy drives
device fdc
# ATA and ATAPI devices
device ata
device atadisk # ATA disk drives
device atapicd # ATAPI CDROM drives
options ATA_STATIC_ID #Static device numbering
#options ATA_ENABLE_ATAPI_DMA #Enable DMA on ATAPI devices
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc 1
device atkbd
device psm
device vga
# splash screen/screen saver
device splash
# syscons is the default console driver, resembling an SCO console
device sc 1
# Floating point support - do not disable.
device npx
# Power management support (see LINT for more options)
device apm
# Serial (COM) ports
device sio
# Parallel port
device ppc
device ppbus # Parallel port bus (required)
device lpt # Printer
device plip # TCP/IP over parallel
device ppi # Parallel port interface device
#device vpo # Requires scbus and da
# Pseudo devices - the number indicates how many units to allocated.
device loop # Network loopback
device ether # Ethernet support
device sl # Kernel SLIP
device ppp 1 # Kernel PPP
device tun # Packet tunnel.
device pty # Pseudo-ttys (telnet etc)
device md # Memory "disks"
device gif 4 # IPv6 and IPv4 tunneling
device faith 1 # IPv6-to-IPv4 relaying (translation)
device speaker
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
device bpf 2 # Berkeley packet filter
options DDB
options IPFIREWALL
options IPFIREWALL_VERBOSE
options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity
options IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default
options IPDIVERT #divert sockets
options TCP_DROP_SYNFIN #drop TCP packets with SYN+FIN
options TCP_RESTRICT_RST #restrict emission of TCP RST
options DUMMYNET
options EXT2FS
options VFS_AIO
options _KPOSIX_VERSION=199309L
device vn
device snp
options MSGBUF_SIZE=81920
options SC_HISTORY_SIZE=200 # number of history buffer lines
options SC_MOUSE_CHAR=0x3 # char code for text mode mouse cursor
device pcm
device sbc
device pca
===}
/netch
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