Date: Wed, 11 Oct 2006 16:40:25 GMT From: Herve Boulouis <amon@sockar.homeip.net> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/85780: 'panic: bogus refcnt 0' in routing/ipv6 Message-ID: <200610111640.k9BGePSe081889@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
The following reply was made to PR kern/85780; it has been noted by GNATS.
From: Herve Boulouis <amon@sockar.homeip.net>
To: bug-followup@FreeBSD.org
Cc:
Subject: Re: kern/85780: 'panic: bogus refcnt 0' in routing/ipv6
Date: Wed, 11 Oct 2006 18:33:00 +0200
I got the following panic on a i386 6.2-PRELEASE system :
Machine was nearly idle at the time and has no ipv6 services (but
a completely configured ipv6 stack)
panic: bogus refcnt 0
Uptime: 1d14h3m32s
Dumping 511 MB (2 chunks)
chunk 0: 1MB (160 pages) ... ok
chunk 1: 511MB (130800 pages) 495 479 463 447 431 415 399 383 367 351 335 319 303 287 271 255 239 223 207 191 175 159 143 127 111 95 79 63 47 31 15
backtrace :
(kgdb) bt
#0 0xc05e069c in doadump ()
#1 0xc05e0c12 in boot ()
#2 0xc05e0f4d in panic ()
#3 0xc067079c in rtfree ()
#4 0xc06b7247 in nd6_na_output ()
#5 0xc06b5f93 in nd6_ns_input ()
#6 0xc069a788 in icmp6_input ()
#7 0xc06a99bb in ip6_input ()
#8 0xc066c13e in netisr_processqueue ()
#9 0xc066c353 in swi_net ()
#10 0xc05c8e18 in ithread_execute_handlers ()
#11 0xc05c8f93 in ithread_loop ()
#12 0xc05c7b61 in fork_exit ()
kernel config :
machine i386
cpu I686_CPU
ident GENERIC-NERIM
# To statically compile in device wiring instead of /boot/device.hints
#hints "GENERIC.hints" # Default places to look for devices.
options SCHED_4BSD # 4BSD scheduler
options PREEMPTION # Enable kernel thread preemption
options INET # InterNETworking
options INET6 # IPv6 communications protocols
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_EXTATTR
options UFS_EXTATTR_AUTOSTART
options MD_ROOT # MD is a potential root device
options NFSCLIENT # Network Filesystem Client
options NFSSERVER # Network Filesystem Server
options NFS_ROOT # NFS usable as /, requires NFSCLIENT
options MSDOSFS # MSDOS Filesystem
options CD9660 # ISO 9660 Filesystem
options UDF
options PROCFS # Process filesystem (requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options GEOM_GPT # GUID Partition Tables.
options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
options KTRACE # ktrace(1) 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 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.
options ADAPTIVE_GIANT # Giant mutex is adaptive.
device apic # I/O APIC
# Bus support. Do not remove isa, even if you have no isa slots
device isa
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
options ATA_STATIC_ID # Static device numbering
# SCSI Controllers
device ahc # AHA2940 and onboard AIC7xxx devices
device ahd # AHA39320/29320 and onboard AIC79xx devices
device amd # AMD 53C974 (Tekram DC-390(T))
device isp # Qlogic family
device sym # NCR/Symbios Logic (newer chipsets + those of `ncr')
device trm # Tekram DC395U/UW/F DC315U adapters
# SCSI peripherals
device scbus # SCSI bus (required for SCSI)
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 asr # DPT SmartRAID V, VI and Adaptec SCSI RAID
device mly # Mylex AcceleRAID/eXtremeRAID
# RAID controllers
device aac # Adaptec FSA RAID
device mpt
# 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 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
# Floating point support - do not disable.
device npx
# Add suspend/resume support for the i8254.
device pmtimer
# Serial (COM) ports
device sio # 8250, 16[45]50 based serial ports
# 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 the sio and/or ppc drivers):
#device puc
# PCI Ethernet NICs.
device de # DEC/Intel DC21x4x (``Tulip'')
device em # Intel PRO/1000 adapter Gigabit Ethernet Card
device sk # some embedded 3com chipsets
device bge # Broadcom BCM570x (``Tigon III'')
# 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 rl # RealTek 8129/8139
device vr # VIA Rhine, Rhine II
device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
# Pseudo devices.
device loop # Network loopback
device mem # Memory and kernel memory devices
device io # I/O device
device random # Entropy device
device ether # Ethernet support
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 vlan #VLAN support (needs miibus)
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
device bpf # Berkeley packet filter
# SMB bus
device smbus # Bus support, required for smb below.
device intpm # Intel PIIX4 (82371AB, 82443MX) Power Management Unit
device ichsmb # Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
device smb # standard io through /dev/smb*
# i2c bus
device iicbus # Bus support, required for ic/iic/iicsmb below.
device iicbb
device ic # i2c network interface
device iic # i2c standard io
device iicsmb # smb over i2c bridge
# firewall
options IPFILTER
options IPFILTER_LOG
options ZERO_COPY_SOCKETS
options NBUF=0
options INVARIANTS
options INVARIANT_SUPPORT
kernel & vmcore available on request.
--
Herve Boulouis
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200610111640.k9BGePSe081889>