Crash dump in umount
Andrea Venturoli
ml.ventu at flashnet.it
Thu Apr 10 03:12:36 PDT 2003
Hello.
I'm having a 4.7Rp9 server which is since months quite unstable, so I've compiled a debug kernel and got a crash dump.
I'm a programmer and I know a little how to use gdb, I'm not so expert about FreeBSD kernel insides however, so I can't
get much from it. Any kind of help is appreciated.
This is the crash message:
IdlePTD at phsyical address 0x0032f000
initial pcb at physical address 0x00288ca0
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x2c
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc014f4ea
stack pointer = 0x10:0xc82c7d5c
frame pointer = 0x10:0xc82c7d5c
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 1108 (umount)
interrupt mask = bio
trap number = 12
panic: page fault
syncing disks...
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x2c
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc014f4ea
stack pointer = 0x10:0xc82c7a88
frame pointer = 0x10:0xc82c7a88
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 1108 (umount)
interrupt mask = bio
trap number = 12
panic: page fault
Uptime: 54m10s
dumping to dev #da/0x20019, offset 262304
dump 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Following is the stack trace (as output from bt):
#0 dumpsys () at ../../kern/kern_shutdown.c:487
#1 0xc015b2ef in boot (howto=260) at ../../kern/kern_shutdown.c:316
#2 0xc015b714 in poweroff_wait (junk=0xc02594cc, howto=-1071280145)
at ../../kern/kern_shutdown.c:595
#3 0xc021c30a in trap_fatal (frame=0xc82c7a48, eva=44)
at ../../i386/i386/trap.c:974
#4 0xc021bfdd in trap_pfault (frame=0xc82c7a48, usermode=0, eva=44)
at ../../i386/i386/trap.c:867
#5 0xc021bbc7 in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16,
tf_edi = -1060177920, tf_esi = 1, tf_ebp = -936609144,
tf_isp = -936609164, tf_ebx = -1060241888, tf_edx = 2, tf_ecx = 1,
tf_eax = 0, tf_trapno = 12, tf_err = 0, tf_eip = -1072368406, tf_cs = 8,
tf_eflags = 66118, tf_esp = -936609112, tf_ss = -1062357007})
at ../../i386/i386/trap.c:466
#6 0xc014f4ea in devsw (dev=0x0) at ../../kern/kern_conf.c:76
#7 0xc0adb7f1 in ?? ()
#8 0xc0adb4ea in ?? ()
#9 0xc0adb352 in ?? ()
#10 0xc0193f48 in spec_strategy (ap=0xc82c7b2c)
at ../../miscfs/specfs/spec_vnops.c:479
#11 0xc0193971 in spec_vnoperate (ap=0xc82c7b2c)
at ../../miscfs/specfs/spec_vnops.c:119
#12 0xc01dc955 in ufs_vnoperatespec (ap=0xc82c7b2c)
at ../../ufs/ufs/ufs_vnops.c:2440
#13 0xc0180bfa in bwrite (bp=0xc33c24bc) at vnode_if.h:944
#14 0xc018620e in vop_stdbwrite (ap=0xc82c7b74) at ../../kern/vfs_default.c:331
#15 0xc0186069 in vop_defaultop (ap=0xc82c7b74) at ../../kern/vfs_default.c:150
#16 0xc0193971 in spec_vnoperate (ap=0xc82c7b74)
at ../../miscfs/specfs/spec_vnops.c:119
#17 0xc01dc955 in ufs_vnoperatespec (ap=0xc82c7b74)
at ../../ufs/ufs/ufs_vnops.c:2440
#18 0xc0180f4a in bawrite (bp=0xc33c24bc) at vnode_if.h:1193
#19 0xc01d1baa in softdep_fsync_mountdev (vp=0xc841c640)
at ../../ufs/ffs/ffs_softdep.c:4048
#20 0xc01d5d12 in ffs_fsync (ap=0xc82c7bfc) at ../../ufs/ffs/ffs_vnops.c:134
#21 0xc01d49a3 in ffs_sync (mp=0xc0b9ae00, waitfor=2, cred=0xc0731900,
p=0xc02b94e0) at vnode_if.h:558
#22 0xc018b0df in sync (p=0xc02b94e0, uap=0x0) at ../../kern/vfs_syscalls.c:576
#23 0xc015b08a in boot (howto=256) at ../../kern/kern_shutdown.c:235
#24 0xc015b714 in poweroff_wait (junk=0xc02594cc, howto=-1071280145)
at ../../kern/kern_shutdown.c:595
#25 0xc021c30a in trap_fatal (frame=0xc82c7d1c, eva=44)
at ../../i386/i386/trap.c:974
#26 0xc021bfdd in trap_pfault (frame=0xc82c7d1c, usermode=0, eva=44)
at ../../i386/i386/trap.c:867
#27 0xc021bbc7 in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16,
tf_edi = -1060344832, tf_esi = 1, tf_ebp = -936608420,
tf_isp = -936608440, tf_ebx = -1061470176, tf_edx = 1, tf_ecx = 1,
tf_eax = 0, tf_trapno = 12, tf_err = 0, tf_eip = -1072368406, tf_cs = 8,
tf_eflags = 66118, tf_esp = -936608388, tf_ss = -1062357007})
at ../../i386/i386/trap.c:466
#28 0xc014f4ea in devsw (dev=0x0) at ../../kern/kern_conf.c:76
#29 0xc0adb7f1 in ?? ()
#30 0xc0adb4ea in ?? ()
#31 0xc0adb352 in ?? ()
#32 0xc0193f48 in spec_strategy (ap=0xc82c7dfc)
at ../../miscfs/specfs/spec_vnops.c:479
#33 0xc0193971 in spec_vnoperate (ap=0xc82c7dfc)
at ../../miscfs/specfs/spec_vnops.c:119
#34 0xc01dc955 in ufs_vnoperatespec (ap=0xc82c7dfc)
at ../../ufs/ufs/ufs_vnops.c:2440
#35 0xc01dc255 in ufs_strategy (ap=0xc82c7e40) at vnode_if.h:944
#36 0xc01dc925 in ufs_vnoperate (ap=0xc82c7e40)
at ../../ufs/ufs/ufs_vnops.c:2422
#37 0xc0180bfa in bwrite (bp=0xc33a4cac) at vnode_if.h:944
#38 0xc018620e in vop_stdbwrite (ap=0xc82c7e7c) at ../../kern/vfs_default.c:331
#39 0xc0186069 in vop_defaultop (ap=0xc82c7e7c) at ../../kern/vfs_default.c:150
#40 0xc01dc925 in ufs_vnoperate (ap=0xc82c7e7c)
at ../../ufs/ufs/ufs_vnops.c:2422
#41 0xc0180f4a in bawrite (bp=0xc33a4cac) at vnode_if.h:1193
#42 0xc01d5e9e in ffs_fsync (ap=0xc82c7ee8) at ../../ufs/ffs/ffs_vnops.c:198
#43 0xc01d48cb in ffs_sync (mp=0xc0b9ae00, waitfor=2, cred=0xc0731900,
p=0xc7801700) at vnode_if.h:558
#44 0xc018b0df in sync (p=0xc7801700, uap=0xc82c7f80)
at ../../kern/vfs_syscalls.c:576
#45 0xc021c5b9 in syscall2 (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
tf_edi = 2, tf_esi = -1077936668, tf_ebp = -1077936752,
tf_isp = -936607788, tf_ebx = -1077936668, tf_edx = 0, tf_ecx = 0,
tf_eax = 36, tf_trapno = 12, tf_err = 2, tf_eip = 134522764, tf_cs = 31,
tf_eflags = 658, tf_esp = -1077936812, tf_ss = 47})
at ../../i386/i386/trap.c:1175
#46 0xc02109b5 in Xint0x80_syscall ()
#47 0x8048135 in ?? ()
And, finally, this is my kernel configuration file:
#
# 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 ./LINT configuration file. If you are
# in doubt as to the purpose or necessity of a line, check first in LINT.
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.246.2.48 2002/08/31 20:28:26 obrien Exp $
machine i386
#cpu I386_CPU
#cpu I486_CPU
#cpu I586_CPU
cpu I686_CPU
ident GENERIC
maxusers 0
makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
#options MATH_EMULATE #Support for x87 emulation
options INET #InterNETworking
#options INET6 #IPv6 communications protocols
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep this!]
options SOFTUPDATES #Enable FFS soft updates support
options UFS_DIRHASH #Improve performance on big directories
options MFS #Memory Filesystem
options MD_ROOT #MD is a potential root device
#options NFS #Network Filesystem
#options NFS_ROOT #NFS usable as root device, NFS required
options MSDOSFS #MSDOS Filesystem
options CD9660 #ISO 9660 Filesystem
#options CD9660_ROOT #CD-ROM usable as root, CD9660 required
options PROCFS #Process filesystem
options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
options SCSI_DELAY=15000 #Delay (in ms) before probing SCSI
options UCONSOLE #Allow users to grab the console
options USERCONFIG #boot -c editor
#options VISUAL_USERCONFIG #visual boot -c editor
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 ICMP_BANDLIM #Rate limit bad replies
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
options AHC_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~128k to driver.
options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~215k to driver.
# To make an SMP kernel, the next two are needed
#options SMP # Symmetric MultiProcessor Kernel
#options APIC_IO # Symmetric (APIC) I/O
device isa
#device eisa
device pci
# Floppy drives
#device fdc0 at isa? port IO_FD1 irq 6 drq 2
#device fd0 at fdc0 drive 0
#device fd1 at fdc0 drive 1
#
# If you have a Toshiba Libretto with its Y-E Data PCMCIA floppy,
# don't use the above line for fdc0 but the following one:
#device fdc0
# ATA and ATAPI devices
#device ata0 at isa? port IO_WD1 irq 14
#device ata1 at isa? port IO_WD2 irq 15
#device ata
#device atadisk # ATA disk 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
#device amd # AMD 53C974 (Teckram DC-390(T))
#device isp # Qlogic family
#device ncr # NCR/Symbios Logic
device sym # NCR/Symbios Logic (newer chipsets)
options SYM_SETUP_LP_PROBE_MAP=0x40
# Allow ncr to attach legacy NCR devices when
# both sym and ncr are configured
#device adv0 at isa?
#device adw
#device bt0 at isa?
#device aha0 at isa?
#device aic0 at isa?
#device ncv # NCR 53C500
#device nsp # Workbit Ninja SCSI-3
#device stg # TMC 18C30/18C50
# SCSI peripherals
device scbus # SCSI bus (required)
device da # Direct Access (disks)
#device sa # Sequential Access (tape etc)
device cd # CD
#device pass # Passthrough device (direct SCSI access)
# RAID controllers interfaced to the SCSI subsystem
#device asr # DPT SmartRAID V, VI and Adaptec SCSI RAID
#device dpt # DPT Smartcache - See LINT for options!
#device mly # Mylex AcceleRAID/eXtremeRAID
# RAID controllers
#device ida # Compaq Smart RAID
#device amr # AMI MegaRAID
#device mlx # Mylex DAC960 family
#device twe # 3ware Escalade
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc0 at isa? port IO_KBD
device atkbd0 at atkbdc? irq 1 flags 0x1
#device psm0 at atkbdc? irq 12
device vga0 at isa?
# splash screen/screen saver
pseudo-device splash
# syscons is the default console driver, resembling an SCO console
device sc0 at isa? flags 0x100
# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
#device vt0 at isa?
#options XSERVER # support for X server on a vt console
#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
# Floating point support - do not disable.
device npx0 at nexus? port IO_NPX irq 13
# Power management support (see LINT for more options)
device apm0 at nexus? flags 0x20 # Advanced Power Management
# PCCARD (PCMCIA) support
#device card
#device pcic0 at isa? irq 0 port 0x3e0 iomem 0xd0000
#device pcic1 at isa? irq 0 port 0x3e2 iomem 0xd4000 disable
# Serial (COM) ports
device sio0 at isa? port IO_COM1 flags 0x10 irq 4
#device sio1 at isa? port IO_COM2 irq 3
#device sio2 at isa? disable port IO_COM3 irq 5
#device sio3 at isa? disable port IO_COM4 irq 9
# Parallel port
device ppc0 at isa? irq 7
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
# PCI Ethernet NICs.
#device de # DEC/Intel DC21x4x (``Tulip'')
#device tx # SMC 9432TX (83c170 ``EPIC'')
#device vx # 3Com 3c590, 3c595 (``Vortex'')
#device wx # Intel Gigabit Ethernet Card (``Wiseman'')
# 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 dc # DEC/Intel 21143 and various workalikes
device fxp # Intel EtherExpress PRO/100B (82557, 82558)
#device pcn # AMD Am79C79x PCI 10/100 NICs
#device rl # RealTek 8129/8139
#device sf # Adaptec AIC-6915 (``Starfire'')
#device sis # Silicon Integrated Systems SiS 900/SiS 7016
#device ste # Sundance ST201 (D-Link DFE-550TX)
#device tl # Texas Instruments ThunderLAN
#device vr # VIA Rhine, Rhine II
#device wb # Winbond W89C840F
#device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
# ISA Ethernet NICs.
#device ed0 at isa? port 0x280 irq 10 iomem 0xd8000
#device ex
#device ep
#device fe0 at isa? port 0x300
# WaveLAN/IEEE 802.11 wireless NICs. Note: the WaveLAN/IEEE really
# exists only as a PCMCIA device, so there is no ISA attachment needed
# and resources will always be dynamically assigned by the pccard code.
#device wi
# Aironet 4500/4800 802.11 wireless NICs. Note: the declaration below will
# work for PCMCIA and PCI cards, as well as ISA cards set to ISA PnP
# mode (the factory default). If you set the switches on your ISA
# card for a manually chosen I/O address and IRQ, you must specify
# those paremeters here.
#device an
# Xircom Ethernet
#device xe
# The probe order of these is presently determined by i386/isa/isa_compat.c.
#device ie0 at isa? port 0x300 irq 10 iomem 0xd0000
#device le0 at isa? port 0x300 irq 5 iomem 0xd0000
#device lnc0 at isa? port 0x280 irq 10 drq 0
#device cs0 at isa? port 0x300
#device sn0 at isa? port 0x300 irq 10
# Pseudo devices - the number indicates how many units to allocate.
pseudo-device loop # Network loopback
pseudo-device ether # Ethernet support
#pseudo-device sl 1 # Kernel SLIP
#pseudo-device ppp 1 # Kernel PPP
pseudo-device tun # Packet tunnel.
pseudo-device pty # Pseudo-ttys (telnet etc)
pseudo-device md # Memory "disks"
#pseudo-device gif # IPv6 and IPv4 tunneling
#pseudo-device faith 1 # IPv6-to-IPv4 relaying (translation)
# The `bpf' pseudo-device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
pseudo-device bpf #Berkeley packet filter
# USB support
device uhci # UHCI PCI->USB interface
device ohci # OHCI PCI->USB interface
device usb # USB Bus (required)
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 uscanner # Scanners
# USB Ethernet, requires mii
#device aue # ADMtek USB ethernet
#device cue # CATC USB ethernet
#device kue # Kawasaki LSI USB ethernet
options IPFIREWALL
options IPFIREWALL_VERBOSE
options IPDIVERT
options TCP_DROP_SYNFIN
options NETATALK
options ELSA_QS1PCI
device isic
pseudo-device "i4bq921"
pseudo-device "i4bq931"
pseudo-device "i4b"
pseudo-device "i4btrc" 4
pseudo-device "i4bctl"
pseudo-device "i4brbch" 4
#pseudo-device "i4btel" 2
#pseudo-device "i4bisppp" 4
#pseude-device "i4bipr" 4
#options IPR_VJ
options SEMMNI=256
options SEMMNS=512
bye & Thanks
av.
P.S. Please respond directy to my address too.
More information about the freebsd-stable
mailing list