Date: Fri, 11 May 2001 16:26:17 -0700 From: Jason DiCioccio <Jason.DiCioccio@Epylon.com> To: "'freebsd-stable@freebsd.org'" <freebsd-stable@freebsd.org> Subject: Unexplained Load Averages Message-ID: <657B20E93E93D4118F9700D0B73CE3EA0166D858@goofy.epylon.lan>
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Hello!
My friend and I have both been having
issues regarding unexplained load on
our machines. His was the culprit
today and I finally decided to send it
in to the list. Below is some output
which shows the 2.00 load average
(dual CPU) and the lack of processes
to explain it. I think it's probably
something in the kernel taking the CPU,
however I know of no way to check.
I had the same problems on my machine
about 5 days ago (4.3-RC) except it was
1.00 (single processor) instead.
I am assuming that there are others
having this same problem out there and
would love to get an answer to this.
(Or perhaps it's been fixed? It's very
sporadic(sp?))
I also checked for trojaned binaries in
case someone had put a rootkit on the
machine but could find no traces of
one present. I even checked
/proc/*/status manually and they
matched up with what ps was reporting.
I am doubting this is a security issue
and assuming that again, there is something
in the kernel causing this load.
Any help would appreciated.
Thanks in advance,
- -Jason DiCioccio
- ----------------------------------------------------------------------
- --------
spritle% uptime
(~)
4:10PM up 2 days, 23:57, 2 users, load averages: 2.00, 2.00, 2.00
last pid: 10421; load averages: 2.00, 2.00, 2.00 up 2+23:58:16
16:11:21
34 processes: 1 running, 33 sleeping
CPU states: % user, % nice, % system, % interrupt,
% idle
Mem: 32M Active, 168M Inact, 30M Wired, 1396K Cache, 17M Buf, 19M
Free
Swap: 512M Total, 512M Free
PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU
CPU COMMAND
10421 calvin 36 0 1832K 1084K CPU1 1 0:00 17.00%
0.83% top
238 zope 2 0 12828K 12168K poll 1 1:46 0.00%
0.00% python
96 root 2 0 3596K 3228K select 1 0:22 0.00%
0.00% named
221 root 2 0 1848K 1252K select 0 0:17 0.00%
0.00% sshd
184 root 2 0 3292K 2436K select 0 0:17 0.00%
0.00% httpd
spritle% iostat
(~)
tty da0 da1 da2
cpu
tin tout KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni sy
in id
0 3 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0
1 99
spritle% vmstat
(~)
procs memory page disks faults
cpu
r b w avm fre flt re pi po fr sr da0 da1 in sy cs
us sy id
0 0 0 35584 21392 4 0 0 0 3 0 0 0 230 87 5
0 1 99
spritle% vmstat -m
(~) Memory statistics by bucket size
Size In Use Free Requests HighWater Couldfree
16 460 1076 178869 0 1280
32 194 574 33021 0 640
64 5983 1249 942496 0 320
128 1274 582 59746 0 160
256 5533 99 485449 0 80
512 42 38 365 0 40
1K 317 831 24699 0 20
2K 24 52 957 0 10
4K 18 1 527 0 5
8K 8 1 71 0 5
16K 5 0 5 0 5
32K 2 0 2 0 5
64K 5 0 5 0 5
128K 1 0 1 0 5
256K 1 0 1 0 5
Memory usage type by bucket size
Size Type(s)
16 MD disk, kld, proc-args, atexit, temp, sysctl, bus, rman,
soname,
pcb, mount, vnodes, ether_multi, routetbl, IpFw/IpAcct,
p1003.1b,
ACD driver, devbuf, isa_devlist, atkbddev
32 linux, kld, sigio, proc-args, temp, pgrp, proc, subproc,
sysctl, bus,
eventhandler, SWAP, soname, pcb, cluster_save buffer,
vnodes, BPF,
ifaddr, ether_multi, routetbl, in_multi, tseg_qent, ATAPI
generic,
devbuf
64 file, proc-args, lockf, temp, session, subproc, bus,
eventhandler,
rman, pcb, vfscache, cluster_save buffer, vnodes, ifaddr,
ether_multi, routetbl, isadev, devbuf
128 ppbusdev, kld, timecounter, dev_t, proc-args, zombie, temp,
cred,
bus, ttys, soname, vfscache, mount, vnodes, ifaddr,
routetbl, ZONE,
ATAPI generic, devbuf
256 file desc, proc-args, temp, proc, subproc, bus, ttys, vfscache,
vnodes, ifaddr, routetbl, IpFw/IpAcct, NFS daemon, FFS
node,
ACD driver, devbuf, isa_devlist
512 file desc, temp, ioctlops, ptys, BIO buffer, mount, UFS mount,
ATA generic, devbuf
1K MD disk, file desc, temp, proc, bus, ioctlops, BIO buffer,
NQNFS Lease, devbuf, isa_devlist
2K kld, file desc, temp, bus, pcb, BIO buffer, UFS mount, ACD
driver,
devbuf, mbuf
4K kld, file desc, temp, devbuf, memdesc
8K kld, file desc, temp, bus, UFS mount, devbuf
16K kld, devbuf
32K temp, MSDOSFS mount
64K ISOFS mount, kld, NFS hash, UFS ihash, VM pgdata
128K vfscache
256K SWAP
Memory statistics by type Type Kern
Type InUse MemUse HighUse Limit Requests Limit Limit
Size(s)
linux 6 1K 1K 42658K 6 0 0 32
MD disk 2 2K 2K 42658K 2 0 0 16,1K
ppbusdev 3 1K 1K 42658K 3 0 0 128
ISOFS mount 1 64K 64K 42658K 1 0 0 64K
kld 10 85K 91K 42658K 52 0 0
16,32,128,2K,4K,8K,16K,64K
timecounter 5 1K 1K 42658K 5 0 0 128
dev_t 484 61K 61K 42658K 484 0 0 128
file desc 53 24K 47K 42658K 10583 0 0
256,512,1K,2K,4K,8K
file 188 12K 74K 42658K 353787 0 0 64
sigio 1 1K 1K 42658K 23 0 0 32
proc-args 25 2K 3K 42658K 28113 0 0
16,32,64,128,256 zombie 0 0K 1K 42658K 10386
0 0 128
atexit 1 1K 1K 42658K 1 0 0 16
lockf 3 1K 1K 42658K 42127 0 0 64
temp 153 32K 62K 42658K 10851 0 0
16,32,64,128,256,512,1K,2K,4K,8K,32K
pgrp 21 1K 1K 42658K 5718 0 0 32
session 19 2K 2K 42658K 5587 0 0 64
proc 10 3K 3K 42658K 4414 0 0
32,256,1K
subproc 88 7K 11K 42658K 25957 0 0
32,64,256
cred 21 3K 7K 42658K 11830 0 0 128
sysctl 0 0K 1K 42658K 4179 0 0 16,32
bus 357 37K 37K 42658K 504 0 0
16,32,64,128,256,1K,2K,8K
eventhandler 14 1K 1K 42658K 14 0 0 32,64
SWAP 2 173K 173K 42658K 2 0 0
32,256K
ioctlops 0 0K 1K 42658K 6 0 0 512,1K
rman 50 3K 3K 42658K 71 0 0 16,64
ttys 328 42K 52K 42658K 1342 0 0
128,256
ptys 5 3K 3K 42658K 5 0 0 512
soname 5 1K 1K 42658K 155903 0 0
16,32,128
pcb 28 5K 21K 42658K 18013 0 0
16,32,64,2K
BIO buffer 52 59K 876K 42658K 24071 0 0
512,1K,2K
vfscache 5787 510K 575K 42658K 531620 0 0
64,128,256,128K
cluster_save buffer 0 0K 1K 42658K 409 0 0
32,64
mount 5 3K 3K 42658K 7 0 0
16,128,512
vnodes 25 6K 6K 42658K 349 0 0
16,32,64,128,256
MSDOSFS mount 1 32K 32K 42658K 1 0 0 32K
BPF 4 1K 1K 42658K 4 0 0 32
ifaddr 14 2K 2K 42658K 14 0 0
32,64,128,256
ether_multi 7 1K 1K 42658K 7 0 0
16,32,64
routetbl 37 5K 144K 42658K 5753 0 0
16,32,64,128,256
in_multi 2 1K 1K 42658K 2 0 0 32
IpFw/IpAcct 6 1K 1K 42658K 6 0 0 16,256
tseg_qent 0 0K 1K 42658K 7104 0 0 32
NFS daemon 1 1K 1K 42658K 1 0 0 256
NQNFS Lease 1 1K 1K 42658K 1 0 0 1K
NFS hash 1 64K 64K 42658K 1 0 0 64K
p1003.1b 1 1K 1K 42658K 1 0 0 16
FFS node 5386 1347K 1347K 42658K 465501 0 0 256
UFS ihash 1 64K 64K 42658K 1 0 0 64K
UFS mount 12 36K 36K 42658K 12 0 0
512,2K,8K
VM pgdata 1 64K 64K 42658K 1 0 0 64K
ZONE 19 3K 3K 42658K 19 0 0 128
isadev 9 1K 1K 42658K 9 0 0 64
ATA generic 0 1K 1K 42658K 1 0 0 512
ATAPI generic 1 1K 1K 42658K 2 0 0 32,128
ACD driver 3 3K 3K 42658K 3 0 0
16,256,2K
devbuf 589 445K 446K 42658K 1326 0 0
16,32,64,128,256,512,1K,2K,4K,8K,16K
mbuf 1 2K 2K 42658K 1 0 0 2K
memdesc 1 4K 4K 42658K 1 0 0 4K
isa_devlist 15 2K 2K 42658K 15 0 0
16,256,1K
atkbddev 2 1K 1K 42658K 2 0 0 16
Memory Totals: In Use Free Requests
3204K 1177K 1726214
spritle%
(~)
spritle% dmesg
(~) Copyright (c) 1992-2000 The FreeBSD Project.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights
reserved.
FreeBSD 4.0-RELEASE #6: Sat Oct 14 13:21:49 PDT 2000
root@spritle.mediumlook.com:/usr/src/sys/compile/NETFINITY
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium Pro (198.95-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x619 Stepping = 9
Features=0xfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,M
CA,CMOV>real memory = 268435456 (262144K bytes)
avail memory = 257236992 (251208K bytes)
Programming 16 pins in IOAPIC #0
IOAPIC #0 intpin 2 -> irq 0
FreeBSD/SMP: Multiprocessor motherboard
cpu0 (BSP): apic id: 0, version: 0x00040011, at 0xfec08000
cpu1 (AP): apic id: 1, version: 0x00040011, at 0xfec08000
io0 (APIC): apic id: 14, version: 0x000f0011, at 0xfec00000
Preloaded elf kernel "kernel" at 0xc0308000.
Pentium Pro MTRR support enabled
md0: Malloc disk
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82454KX/GX (Orion) host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
isab0: <Intel 82375EB PCI-EISA bridge> at device 14.0 on pci0
eisa0: <EISA bus> on isab0
mainboard0: <INT31c0 (System Board)> on eisa0 slot 0
isa0: <ISA bus> on isab0
chip0: <> mem
0xfffffc00-0xffffffff,0xfffffc00-0xffffffff,0xfffffc00-0xffffffff,0xff
fffc00-0xffffffff,0xfffffc00-0xffffffff,0xfec01000-0xfec013ff at
device 15.0 on pci0
chip1: <Intel 82453KX/GX (Orion) PCI memory controller> at device
20.0 on pci0
pcib1: <Intel 82454KX/GX (Orion) host to PCI bridge> on motherboard
pci1: <PCI bus> on pcib1
ahc0: <Adaptec aic7880 Ultra SCSI adapter> port 0xfc00-0xfcff mem
0xfe8ff000-0xfe8fffff irq 11 at device 11.0 on pci1
ahc0: Using left over BIOS settings
ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
ahc1: <Adaptec aic7880 Ultra SCSI adapter> port 0xf800-0xf8ff mem
0xfe8fe000-0xfe8fefff irq 9 at device 12.0 on pci1
ahc1: Using left over BIOS settings
ahc1: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
xl0: <3Com 3c905B-TX Fast Etherlink XL> port 0xf480-0xf4ff mem
0xfe8fdc00-0xfe8fdc7f irq 10 at device 14.0 on pci1
xl0: Ethernet address: 00:50:da:28:b9:64
miibus0: <MII bus> on xl0
xlphy0: <3Com internal media interface> on miibus0
xlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
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
ata0 at port 0x1f0-0x1f7,0x3f6 irq 14 on isa0
atkbdc0: <keyboard controller (i8042)> at port 0x60-0x6f on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on
isa0
sc0: <System console> on isa0
sc0: VGA <16 virtual consoles, flags=0x200>
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 16/16/8 bytes threshold
ppi0: <Parallel I/O> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
plip0: <PLIP network interface> on ppbus0
APIC_IO: routing 8254 via IOAPIC #0 intpin 2
IP packet filtering initialized, divert enabled, rule-based
forwarding disabled, default to deny, logging disabled
SMP: AP CPU #1 Launched!
acd0: CDROM <HITACHI CDR-8130> at ata0-master using BIOSPIO
Waiting 7 seconds for SCSI devices to settle
pass1 at ahc0 bus 0 target 15 lun 0
pass1: <SDR GEM200 2> Fixed Processor SCSI-2 device
pass1: 3.300MB/s transfers
pass4 at ahc1 bus 0 target 15 lun 0
pass4: <SDR GEM200 2> Fixed Processor SCSI-2 device
pass4: 3.300MB/s transfers
da1 at ahc1 bus 0 target 0 lun 0
da1: <IBM-PCCO ST39102LC !# B203> Fixed Direct Access SCSI-2
device
da1: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged
Queueing Enabled
da1: 8678MB (17774160 512 byte sectors: 64H 32S/T 8678C)
da2 at ahc1 bus 0 target 1 lun 0
da2: <IBM-PCCO ST39102LC !# B203> Fixed Direct Access SCSI-2
device
da2: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged
Queueing Enabled
da2: 8678MB (17774160 512 byte sectors: 64H 32S/T 8678C)
da0 at ahc0 bus 0 target 0 lun 0
da0: <IBM-PCCO ST39102LC !# B203> Fixed Direct Access SCSI-2
device
da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged
Queueing Enabled
da0: 8678MB (17774160 512 byte sectors: 64H 32S/T 8678C)
Mounting root from ufs:/dev/da0s1a
WARNING: / was not properly dismounted
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