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FreeBSD 7.2R 死机问题

Posted on 2010-05-04 21:01 buf 阅读(1590) 评论(0)  编辑 收藏 引用 所属分类: Linux

硬件平台: Intel Atom N270 1.6G / Intel 945GSE + ICH7 / Kinston DDRII 2G / Kinston CF 4G
软件: FreeBSD 7.2R / NTPD v 4.2.4p5 / sshd
症状: 无规律死机(至少我目前么有看出来),多数情况下发生在系统运行1~2小时之间。也有持续运行12小时以上啥事也没有的。

恼火的是,系统日志里看不出什么异常,last的输出显示了一些crash。而且,down机后系统就一直挂在那等着被风干了,也不自动重启。

可能的原因:
1、硬件兼容性问题(特别是内存)
2、电源
3、散热不良
4、异常断电
5、软件问题

有空再逐一排查一下。


0:05:14, 2010年5月6日
这两天,系统运行较之前要稳定多了,几乎没有出现死机的情况。难道是因为开了空调?
通过修改/etc/syslogd.conf,将所有日志*.*输出到/var/log/all.log,看来似乎一切正常。
last命令的输出中有一些"crash",但测试了一下,也可能是突然掉电造成的。在目前的应用中,关闭系统都是直接切断电源,所以这些"crash"说明不了啥问题。
在4月26日通过bios禁用了ACPI。不知道这两天的稳定运行是否与此有关。
贴上kernel conf和dmesg


#
# GENERIC -- Generic kernel configuration file for FreeBSD/i386
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
#    http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.474.2.17.2.1 2009/04/15 03:14:26 kensmith Exp $

 

#cpu  I486_CPU
#cpu  I586_CPU
cpu  I686_CPU
#ident  GENERIC
ident  PPSKERNEL

# To statically compile in device wiring instead of /boot/device.hints
#hints  "GENERIC.hints"  # Default places to look for devices.

makeoptions DEBUG=-g  # Build kernel with gdb(1) debug symbols

options  PPS_SYNC
options  SCHED_ULE  # ULE scheduler
options  PREEMPTION  # Enable kernel thread preemption
options  INET   # InterNETworking
options  INET6   # IPv6 communications protocols
options  SCTP   # Stream Control Transmission Protocol
options  FFS   # Berkeley Fast Filesystem
options  SOFTUPDATES  # Enable FFS soft updates support
options  UFS_ACL   # Support for access control lists
options  UFS_DIRHASH  # Improve performance on big directories
options  UFS_GJOURNAL  # Enable gjournal-based UFS journaling
options  MD_ROOT   # MD is a potential root device
options  NFSCLIENT  # Network Filesystem Client
options  NFSSERVER  # Network Filesystem Server
options  NFSLOCKD  # Network Lock Manager
options  NFS_ROOT  # NFS usable as /, requires NFSCLIENT
options  MSDOSFS   # MSDOS Filesystem
options  CD9660   # ISO 9660 Filesystem
options  PROCFS   # Process filesystem (requires PSEUDOFS)
options  PSEUDOFS  # Pseudo-filesystem framework
options  GEOM_PART_GPT  # GUID Partition Tables.
options  GEOM_LABEL  # Provides labelization
options  COMPAT_43TTY  # BSD 4.3 TTY compat [KEEP THIS!]
options  COMPAT_FREEBSD4  # Compatible with FreeBSD4
options  COMPAT_FREEBSD5  # Compatible with FreeBSD5
options  COMPAT_FREEBSD6  # Compatible with FreeBSD6
options  SCSI_DELAY=5000  # Delay (in ms) before probing SCSI
options  KTRACE   # ktrace(1) support
options  STACK   # stack(9) support
options  SYSVSHM   # SYSV-style shared memory
options  SYSVMSG   # SYSV-style message queues
options  SYSVSEM   # SYSV-style semaphores
options  _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
options  KBD_INSTALL_CDEV # install a CDEV entry in /dev
options  ADAPTIVE_GIANT  # Giant mutex is adaptive.
options  STOP_NMI  # Stop CPUS using NMI instead of IPI
options  AUDIT   # Security event auditing
#options  KDTRACE_HOOKS  # Kernel DTrace hooks

# To make an SMP kernel, the next two lines are needed
options  SMP   # Symmetric MultiProcessor Kernel
device  apic   # I/O APIC

# CPU frequency control
device  cpufreq

# Bus support.
device  eisa
device  pci

# Floppy drives
device  fdc

# ATA and ATAPI devices
device  ata
device  atadisk  # ATA disk drives
device  ataraid  # ATA RAID drives
device  atapicd  # ATAPI CDROM drives
device  atapifd  # ATAPI floppy drives
device  atapist  # ATAPI tape drives
options  ATA_STATIC_ID # Static device numbering

# SCSI Controllers
device  ahb  # EISA AHA1742 family
device  ahc  # AHA2940 and onboard AIC7xxx devices
options  AHC_REG_PRETTY_PRINT # Print register bitfields in debug
     # output.  Adds ~128k to driver.
device  ahd  # AHA39320/29320 and onboard AIC79xx devices
options  AHD_REG_PRETTY_PRINT # Print register bitfields in debug
     # output.  Adds ~215k to driver.
device  amd  # AMD 53C974 (Tekram DC-390(T))
device  hptiop  # Highpoint RocketRaid 3xxx series
device  isp  # Qlogic family
#device  ispfw  # Firmware for QLogic HBAs- normally a module
device  mpt  # LSI-Logic MPT-Fusion
#device  ncr  # NCR/Symbios Logic
device  sym  # NCR/Symbios Logic (newer chipsets + those of `ncr')
device  trm  # Tekram DC395U/UW/F DC315U adapters

device  adv  # Advansys SCSI adapters
device  adw  # Advansys wide SCSI adapters
device  aha  # Adaptec 154x SCSI adapters
device  aic  # Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
device  bt  # Buslogic/Mylex MultiMaster SCSI adapters

device  ncv  # NCR 53C500
device  nsp  # Workbit Ninja SCSI-3
device  stg  # TMC 18C30/18C50

# SCSI peripherals
device  scbus  # SCSI bus (required for SCSI)
device  ch  # SCSI media changers
device  da  # Direct Access (disks)
device  sa  # Sequential Access (tape etc)
device  cd  # CD
device  pass  # Passthrough device (direct SCSI access)
device  ses  # SCSI Environmental Services (and SAF-TE)

# RAID controllers interfaced to the SCSI subsystem
device  amr  # AMI MegaRAID
device  arcmsr  # Areca SATA II RAID
device  asr  # DPT SmartRAID V, VI and Adaptec SCSI RAID
device  ciss  # Compaq Smart RAID 5*
device  dpt  # DPT Smartcache III, IV - See NOTES for options
device  hptmv  # Highpoint RocketRAID 182x
device  hptrr  # Highpoint RocketRAID 17xx, 22xx, 23xx, 25xx
device  iir  # Intel Integrated RAID
device  ips  # IBM (Adaptec) ServeRAID
device  mly  # Mylex AcceleRAID/eXtremeRAID
device  twa  # 3ware 9000 series PATA/SATA RAID

# RAID controllers
device  aac  # Adaptec FSA RAID
device  aacp  # SCSI passthrough for aac (requires CAM)
device  ida  # Compaq Smart RAID
device  mfi  # LSI MegaRAID SAS
device  mlx  # Mylex DAC960 family
device  pst  # Promise Supertrak SX6000
device  twe  # 3ware ATA RAID

# atkbdc0 controls both the keyboard and the PS/2 mouse
device  atkbdc  # AT keyboard controller
device  atkbd  # AT keyboard
device  psm  # PS/2 mouse

device  kbdmux  # keyboard multiplexer

device  vga  # VGA video card driver

device  splash  # Splash screen and screen saver support

# syscons is the default console driver, resembling an SCO console
device  sc

device  agp  # support several AGP chipsets

# Power management support (see NOTES for more options)
#device  apm
# Add suspend/resume support for the i8254.
device  pmtimer

# PCCARD (PCMCIA) support
# PCMCIA and cardbus bridge support
device  cbb  # cardbus (yenta) bridge
device  pccard  # PC Card (16-bit) bus
device  cardbus  # CardBus (32-bit) bus

# Serial (COM) ports
device  sio  # 8250, 16[45]50 based serial ports
device  uart  # Generic UART driver

# 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

# If you've got a "dumb" serial or parallel PCI card that is
# supported by the puc(4) glue driver, uncomment the following
# line to enable it (connects to sio, uart and/or ppc drivers):
#device  puc

# PCI Ethernet NICs.
device  de  # DEC/Intel DC21x4x (``Tulip'')
device  em  # Intel PRO/1000 Gigabit Ethernet Family
device  igb  # Intel PRO/1000 PCIE Server Gigabit Family
device  ixgb  # Intel PRO/10GbE Ethernet Card
device  le  # AMD Am7900 LANCE and Am79C9xx PCnet
device  txp  # 3Com 3cR990 (``Typhoon'')
device  vx  # 3Com 3c590, 3c595 (``Vortex'')

# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device  miibus  # MII bus support
device  age  # Attansic/Atheros L1 Gigabit Ethernet
device  ale  # Atheros AR8121/AR8113/AR8114 Ethernet
device  bce  # Broadcom BCM5706/BCM5708 Gigabit Ethernet
device  bfe  # Broadcom BCM440x 10/100 Ethernet
device  bge  # Broadcom BCM570xx Gigabit Ethernet
device  dc  # DEC/Intel 21143 and various workalikes
device  et  # Agere ET1310 10/100/Gigabit Ethernet
device  fxp  # Intel EtherExpress PRO/100B (82557, 82558)
device  jme  # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
device  lge  # Level 1 LXT1001 gigabit Ethernet
device  msk  # Marvell/SysKonnect Yukon II Gigabit Ethernet
device  nfe  # nVidia nForce MCP on-board Ethernet
device  nge  # NatSemi DP83820 gigabit Ethernet
#device  nve  # nVidia nForce MCP on-board Ethernet Networking
device  pcn  # AMD Am79C97x PCI 10/100 (precedence over 'le')
device  re  # RealTek 8139C+/8169/8169S/8110S
device  rl  # RealTek 8129/8139
device  sf  # Adaptec AIC-6915 (``Starfire'')
device  sis  # Silicon Integrated Systems SiS 900/SiS 7016
device  sk  # SysKonnect SK-984x & SK-982x gigabit Ethernet
device  ste  # Sundance ST201 (D-Link DFE-550TX)
device  stge  # Sundance/Tamarack TC9021 gigabit Ethernet
device  ti  # Alteon Networks Tigon I/II gigabit Ethernet
device  tl  # Texas Instruments ThunderLAN
device  tx  # SMC EtherPower II (83c170 ``EPIC'')
device  vge  # VIA VT612x gigabit Ethernet
device  vr  # VIA Rhine, Rhine II
device  wb  # Winbond W89C840F
device  xl  # 3Com 3c90x (``Boomerang'', ``Cyclone'')

# ISA Ethernet NICs.  pccard NICs included.
device  cs  # Crystal Semiconductor CS89x0 NIC
# 'device ed' requires 'device miibus'
device  ed  # NE[12]000, SMC Ultra, 3c503, DS8390 cards
device  ex  # Intel EtherExpress Pro/10 and Pro/10+
device  ep  # Etherlink III based cards
device  fe  # Fujitsu MB8696x based cards
device  ie  # EtherExpress 8/16, 3C507, StarLAN 10 etc.
device  sn  # SMC's 9000 series of Ethernet chips
device  xe  # Xircom pccard Ethernet

# Wireless NIC cards
device  wlan  # 802.11 support
device  wlan_wep # 802.11 WEP support
device  wlan_ccmp # 802.11 CCMP support
device  wlan_tkip # 802.11 TKIP support
device  wlan_amrr # AMRR transmit rate control algorithm
device  wlan_scan_ap # 802.11 AP mode scanning
device  wlan_scan_sta # 802.11 STA mode scanning
device  an  # Aironet 4500/4800 802.11 wireless NICs.
device  ath  # Atheros pci/cardbus NIC's
device  ath_hal  # Atheros HAL (Hardware Access Layer)
options  AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors
device  ath_rate_sample # SampleRate tx rate control for ath
device  awi  # BayStack 660 and others
device  ral  # Ralink Technology RT2500 wireless NICs.
device  wi  # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
#device  wl  # Older non 802.11 Wavelan wireless NIC.

# Pseudo devices.
device  loop  # Network loopback
device  random  # Entropy device
device  ether  # Ethernet support
device  sl  # Kernel SLIP
device  ppp  # Kernel PPP
device  tun  # Packet tunnel.
device  pty  # Pseudo-ttys (telnet etc)
device  md  # Memory "disks"
device  gif  # IPv6 and IPv4 tunneling
device  faith  # IPv6-to-IPv4 relaying (translation)
device  firmware # firmware assist module

# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device  bpf  # Berkeley packet filter

# USB support
device  uhci  # UHCI PCI->USB interface
device  ohci  # OHCI PCI->USB interface
device  ehci  # EHCI PCI->USB interface (USB 2.0)
device  usb  # USB Bus (required)
#device  udbp  # USB Double Bulk Pipe devices
device  ugen  # Generic
device  uhid  # "Human Interface Devices"
device  ukbd  # Keyboard
device  ulpt  # Printer
device  umass  # Disks/Mass storage - Requires scbus and da
device  ums  # Mouse
device  ural  # Ralink Technology RT2500USB wireless NICs
device  rum  # Ralink Technology RT2501USB wireless NICs
device  urio  # Diamond Rio 500 MP3 player
device  uscanner # Scanners
# USB Serial devices
device  ucom  # Generic com ttys
device  uark  # Technologies ARK3116 based serial adapters
device  ubsa  # Belkin F5U103 and compatible serial adapters
device  ubser  # BWCT console serial adapters
device  uftdi  # For FTDI usb serial adapters
device  uipaq  # Some WinCE based devices
device  uplcom  # Prolific PL-2303 serial adapters
device  uslcom  # SI Labs CP2101/CP2102 serial adapters
device  uvisor  # Visor and Palm devices
device  uvscom  # USB serial support for DDI pocket's PHS
# USB Ethernet, requires miibus
device  aue  # ADMtek USB Ethernet
device  axe  # ASIX Electronics USB Ethernet
device  cdce  # Generic USB over Ethernet
device  cue  # CATC USB Ethernet
device  kue  # Kawasaki LSI USB Ethernet
device  rue  # RealTek RTL8150 USB Ethernet

# FireWire support
device  firewire # FireWire bus code
device  sbp  # SCSI over FireWire (Requires scbus and da)
device  fwe  # Ethernet over FireWire (non-standard!)
device  fwip  # IP over FireWire (RFC 2734,3146)
device  dcons  # Dumb console driver
device  dcons_crom # Configuration ROM for dcons


 

Copyright (c) 1992-2009 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 7.2-RELEASE #0: Sat Apr 24 03:00:43 CST 2010
    root@:/usr/obj/usr/src/sys/PPSKERNEL
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Atom(TM) CPU N270   @ 1.60GHz (1596.01-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x106c2  Stepping = 2
  Features=0xbfe9fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x40c39d<SSE3,DTES64,MON,DS_CPL,EST,TM2,SSSE3,xTPR,PDCM,<b22>>
  AMD Features=0x100000<NX>
  AMD Features2=0x1<LAHF>
  Logical CPUs per core: 2
real memory  = 1064239104 (1014 MB)
avail memory = 1027747840 (980 MB)
MPTable: <OEM00000 PROD00000000>
ioapic0: Changing APIC ID to 2
ioapic0: Assuming intbase of 0
ioapic0 <Version 2.0> irqs 0-23 on motherboard
kbd1 at kbdmux0
pcib0: <MPTable Host-PCI bridge> pcibus 0 on motherboard
pci0: <PCI bus> on pcib0
vgapci0: <VGA-compatible display> port 0xff00-0xff07 mem 0xfdf00000-0xfdf7ffff,0xd0000000-0xdfffffff,0xfdf80000-0xfdfbffff irq 16 at device 2.0 on pci0
agp0: <Intel 945GME SVGA controller> on vgapci0
agp0: detected 7932k stolen memory
agp0: aperture size is 256M
vgapci1: <VGA-compatible display> mem 0xfde80000-0xfdefffff at device 2.1 on pci0
pcib1: <MPTable PCI-PCI bridge> irq 16 at device 28.0 on pci0
pci1: <PCI bus> on pcib1
re0: <RealTek 8168/8168B/8168C/8168CP/8168D/8111B/8111C/8111CP PCIe Gigabit Ethernet> port 0x9e00-0x9eff mem 0xfd9ff000-0xfd9fffff,0xfd6f0000-0xfd6fffff irq 16 at device 0.0 on pci1
re0: Using 1 MSI messages
re0: Chip rev. 0x3c000000
re0: MAC rev. 0x00400000
miibus0: <MII bus> on re0
rgephy0: <RTL8169S/8110S/8211B media interface> PHY 1 on miibus0
rgephy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
re0: Ethernet address: 00:50:c2:1e:fb:89
re0: [FILTER]
pcib2: <MPTable PCI-PCI bridge> irq 17 at device 28.1 on pci0
pci2: <PCI bus> on pcib2
re1: <RealTek 8168/8168B/8168C/8168CP/8168D/8111B/8111C/8111CP PCIe Gigabit Ethernet> port 0xde00-0xdeff mem 0xfd5ff000-0xfd5fffff,0xfd4f0000-0xfd4fffff irq 17 at device 0.0 on pci2
re1: Using 1 MSI messages
re1: Chip rev. 0x3c000000
re1: MAC rev. 0x00400000
miibus1: <MII bus> on re1
rgephy1: <RTL8169S/8110S/8211B media interface> PHY 1 on miibus1
rgephy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
re1: Ethernet address: 00:50:c2:1e:fb:8a
re1: [FILTER]
pcib3: <MPTable PCI-PCI bridge> irq 18 at device 28.2 on pci0
pci3: <PCI bus> on pcib3
re2: <RealTek 8168/8168B/8168C/8168CP/8168D/8111B/8111C/8111CP PCIe Gigabit Ethernet> port 0xce00-0xceff mem 0xfddff000-0xfddfffff,0xfdcf0000-0xfdcfffff irq 18 at device 0.0 on pci3
re2: Using 1 MSI messages
re2: Chip rev. 0x3c000000
re2: MAC rev. 0x00400000
miibus2: <MII bus> on re2
rgephy2: <RTL8169S/8110S/8211B media interface> PHY 1 on miibus2
rgephy2:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
re2: Ethernet address: 00:50:c2:1e:fb:8b
re2: [FILTER]
pcib4: <MPTable PCI-PCI bridge> irq 19 at device 28.3 on pci0
pci4: <PCI bus> on pcib4
re3: <RealTek 8168/8168B/8168C/8168CP/8168D/8111B/8111C/8111CP PCIe Gigabit Ethernet> port 0xbe00-0xbeff mem 0xfdbff000-0xfdbfffff,0xfdaf0000-0xfdafffff irq 19 at device 0.0 on pci4
re3: Using 1 MSI messages
re3: Chip rev. 0x3c000000
re3: MAC rev. 0x00400000
miibus3: <MII bus> on re3
rgephy3: <RTL8169S/8110S/8211B media interface> PHY 1 on miibus3
rgephy3:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
re3: Ethernet address: 00:50:c2:1e:fb:8c
re3: [FILTER]
uhci0: <UHCI (generic) USB controller> port 0xfe00-0xfe1f irq 23 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
uhci0: [ITHREAD]
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> on usb0
uhub0: 2 ports with 2 removable, self powered
uhci1: <UHCI (generic) USB controller> port 0xfd00-0xfd1f irq 19 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
uhci1: [ITHREAD]
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> on usb1
uhub1: 2 ports with 2 removable, self powered
uhci2: <UHCI (generic) USB controller> port 0xfc00-0xfc1f irq 18 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
uhci2: [ITHREAD]
usb2: <UHCI (generic) USB controller> on uhci2
usb2: USB revision 1.0
uhub2: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb2
uhub2: 2 ports with 2 removable, self powered
uhci3: <UHCI (generic) USB controller> port 0xfb00-0xfb1f irq 16 at device 29.3 on pci0
uhci3: [GIANT-LOCKED]
uhci3: [ITHREAD]
usb3: <UHCI (generic) USB controller> on uhci3
usb3: USB revision 1.0
uhub3: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb3
uhub3: 2 ports with 2 removable, self powered
ehci0: <Intel 82801GB/R (ICH7) USB 2.0 controller> mem 0xfdfff000-0xfdfff3ff irq 23 at device 29.7 on pci0
ehci0: [GIANT-LOCKED]
ehci0: [ITHREAD]
usb4: waiting for BIOS to give up control
usb4: EHCI version 1.0
usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
usb4: <Intel 82801GB/R (ICH7) USB 2.0 controller> on ehci0
usb4: USB revision 2.0
uhub4: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb4
uhub4: 8 ports with 8 removable, self powered
pcib5: <PCI-PCI bridge> at device 30.0 on pci0
pci5: <PCI bus> on pcib5
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH7 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xf800-0xf80f at device 31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata0: [ITHREAD]
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
cpu0 on motherboard
est0: <Enhanced SpeedStep Frequency Control> on cpu0
est: CPU supports Enhanced Speedstep, but is not recognized.
est: cpu_vendor GenuineIntel, msr 60f0c270600060f
device_attach: est0 attach returned 6
p4tcc0: <CPU Frequency Thermal Control> on cpu0
pmtimer0 on isa0
orm0: <ISA Option ROM> at iomem 0xef000-0xeffff pnpid ORM0000 on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
ppc0: parallel port not found.
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
sio0: [FILTER]
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
sio1: [FILTER]
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
unknown: <PNP0303> can't assign resources (port)
unknown: <PNP0c01> can't assign resources (memory)
unknown: <PNP0c02> can't assign resources (memory)
unknown: <PNP0501> can't assign resources (port)
unknown: <PNP0501> can't assign resources (port)
Timecounter "TSC" frequency 1596009612 Hz quality 800
Timecounters tick every 1.000 msec
ad0: DMA limited to UDMA33, controller found non-ATA66 cable
ad0: 3847MB <ELITE PRO CF CARD 4GB Ver2.21K> at ata0-master UDMA33
GEOM_LABEL: Label for provider ad0s1a is ufsid/4bd1e004dd17db29.
GEOM_LABEL: Label for provider ad0s1d is ufsid/4bd1e0083f1af48a.
GEOM_LABEL: Label for provider ad0s1e is ufsid/4bd1e007d15da553.
Trying to mount root from ufs:/dev/ad0s1a
WARNING: / was not properly dismounted
GEOM_LABEL: Label ufsid/4bd1e004dd17db29 removed.
GEOM_LABEL: Label for provider ad0s1a is ufsid/4bd1e004dd17db29.
GEOM_LABEL: Label ufsid/4bd1e004dd17db29 removed.
GEOM_LABEL: Label ufsid/4bd1e007d15da553 removed.
WARNING: /paul was not properly dismounted
GEOM_LABEL: Label ufsid/4bd1e0083f1af48a removed.
WARNING: /usr was not properly dismounted
re0: link state changed to UP


2:06:13, 2010年5月9日
看起来似乎不是硬件的问题,因为一个cpu占用率在90%以上的死循环运行了3个多小时系统也是正常的。然后把NTPD的版本从FreeBSD 7.2R默认安装的4.2.4p5切换到4.2.6p1,并且配置4个客户端与其同步,并且继续运行死循环测试,3个小时过去了,一切正常。


20:40:54, 2010年5月22日
异常掉电可能引起磁盘分区被标记为dirty,默认地,系统下一次启动时会运行fsck进行分区检查和错误恢复。如果fsck过程中某个操作需要用户干预或确认,而现在的应用没有使用显示器和键盘鼠标,启动过程可能无法继续进行。
1、编辑/etc/fstab,将分区标记为无须检查(dum=0, pass#=0),详见man fstab
2、编辑/etc/rc.conf,添加以下内容:
      fsck_y_enable="YES"
      fsck_background="NO"             





23:02:08,Wednesday, June 09, 2010
已经能够确定散热不良是导致系统不稳定的一个因素。主板配置的存储器工作温度为0~60摄氏度,这样的温度在使用过程中应该是容易达到的,多次模拟测试的结果也是:主板温度达到60摄氏度后就死机了。

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