From nobody  Mon Mar  2 20:07:58 1998
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Message-Id: <199803030407.UAA25318@hub.freebsd.org>
Date: Mon, 2 Mar 1998 20:07:58 -0800 (PST)
From: jason_smethers@bigfoot.com
To: freebsd-gnats-submit@freebsd.org
Subject: panic: newfs
X-Send-Pr-Version: www-1.0

>Number:         5904
>Category:       kern
>Synopsis:       panic: newfs
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Mar  2 20:10:01 PST 1998
>Closed-Date:    Tue Dec 22 08:34:00 PST 1998
>Last-Modified:  Tue Dec 22 08:34:30 PST 1998
>Originator:     Jason Smethers
>Release:        3.0-current
>Organization:
>Environment:
FreeBSD p90unix.vipersystems.com 3.0-CURRENT FreeBSD 3.0-CURRENT #8: Sun Mar  1 12:32:53 CST 1998     jason@p90unix.vipersystems.com:/usr/src/sys/compile/P90UNIX  i386
>Description:
When newfs a drive with:
su-2.01#umount /dev/wd3c
su-2.01#newfs -b 8192 -f 1024 /dev/wd3c

the system panics with:
panic: bremfree removing a buffer whan not on a queue

and the machine is unable to sync disks.

newfs gets as far as:
Warning: 3568 sector(s) in last cylinder unallocated
/dev/wd3c:      332304 sectors in 82 cylinders of 1 tracks, 4096 sectors
        162.3MB in 6 cyl groups (16 c/g, 32.00MB/g, 6784 i/g)
super-block backups (for fsck -b #) at:

dmesg:
su-2.01# dmesg
Copyright (c) 1992-1998 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California. All rights reserved.
FreeBSD 3.0-CURRENT #8: Sun Mar  1 12:32:53 CST 1998
    jason@p90unix.vipersystems.com:/usr/src/sys/compile/P90UNIX
Timecounter "i8254"  frequency 1193182 Hz  cost 3241 ns
CPU: Pentium (0.00-MHz 586-class CPU)
  Origin = "GenuineIntel"  Id = 0x521  Stepping=1
  Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory  = 33554432 (32768K bytes)
avail memory = 30449664 (29736K bytes)
Probing for devices on PCI bus 0:
chip0: <Intel 82437FX PCI cache memory controller> rev 0x02 on pci0.0.0
chip1: <Intel 82371FB PCI to ISA bridge> rev 0x02 on pci0.7.0
ide_pci0: <Intel PIIX Bus-master IDE controller> rev 0x02 on pci0.7.1
ahc0: <Adaptec aic7880 Ultra SCSI host adapter> rev 0x00 int a irq 11 on pci0.18.0
ahc0: aic7880 Single Channel, SCSI Id=7, 16 SCBs
ahc0: waiting for scsi devices to settle
scbus0 at ahc0 bus 0
ahc0:A:1: refuses synchronous negotiation. Using asynchronous transfers
cd0 at scbus0 target 1 lun 0
cd0: <MEDIAVIS CDR-H93MV 1.32> type 5 removable SCSI 2
cd0: CD-ROM cd present [-1263529487 x -326294800 byte records]
vga0: <Cirrus Logic GD5436 SVGA controller> rev 0x00 on pci0.19.0
fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x01 int a irq 10 on pci0.20.0
fxp0: Ethernet address 00:a0:c9:00:ad:f3
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
wdc0 at 0x1f0-0x1f7 irq 14 flags 0xfccf80ff on isa
wdc0: unit 0 (wd0): <st3144AT>, 32-bit
wd0: 124MB (255255 sectors), 1001 cyls, 15 heads, 17 S/T, 512 B/S
wdc0: unit 1 (wd1): <QUANTUM FIREBALL1080A>, 32-bit, multi-block-8, sleep-hack
wd1: 1039MB (2128896 sectors), 2816 cyls, 12 heads, 63 S/T, 512 B/S
wdc1 at 0x170-0x177 irq 15 flags 0x80ff80ff on isa
wdc1: unit 0 (wd2): <QUANTUM ELS170A>, 32-bit, multi-block-8
wd2: 162MB (333630 sectors), 1011 cyls, 15 heads, 22 S/T, 512 B/S
wdc1: unit 1 (wd3): <Conner Peripherals 170MB - CP30174E>, 32-bit, multi-block-16
wd3: 162MB (332304 sectors), 903 cyls, 8 heads, 46 S/T, 512 B/S
npx0 on motherboard
npx0: INT 16 interface
Intel Pentium F00F detected, installing workaround
WARNING: / was not properly dismounted.

kernel config:
su-2.01# cat P90UNIX
#
# P90UNIX -- Custom kernel
#
# For more information read the handbook part System Administration -> 
# Configuring the FreeBSD Kernel -> The Configuration File. 
# The handbook is available in /usr/share/doc/handbook or online as
# latest version from the FreeBSD World Wide Web server 
# <URL:http://www.FreeBSD.ORG/>
#
# An exhaustive list of options and more detailed explanations of the 
# device lines is present in the ./LINT configuration file. If you are 
# in doubt as to the purpose or necessity of a line, check first in LINT.
#
#       $Id: GENERIC,v 1.105 1998/01/24 02:54:09 eivind Exp $

machine         "i386"
#cpu            "I386_CPU"
#cpu            "I486_CPU"
cpu             "I586_CPU"
#cpu            "I686_CPU"
ident           "P90UNIX"
maxusers        10

#options                MATH_EMULATE            #Support for x87 emulation
options         INET                    #InterNETworking
options         FFS                     #Berkeley Fast Filesystem
options         NFS                     #Network Filesystem
options         MSDOSFS                 #MSDOS Filesystem
options         "CD9660"                #ISO 9660 Filesystem
#options                "CD9660_ROOT"           #CD-ROM usable as root device
options         FFS_ROOT                #FFS usable as root device [keep this!]
options         NFS_ROOT                #NFS usable as root device
options         PROCFS                  #Process filesystem
options         "COMPAT_43"             #Compatible with BSD 4.3 [KEEP THIS!]
options         SCSI_DELAY=10           #Be pessimistic about Joe SCSI device
options         BOUNCE_BUFFERS          #include support for DMA bounce buffers
options         UCONSOLE                #Allow users to grab the console
options         FAILSAFE                #Be conservative
options         USERCONFIG              #boot -c editor
options         VISUAL_USERCONFIG       #visual boot -c editor

options         USER_LDT                #allow user-level control of i386 ldt
options         "MD5"
options         "VM86"
options         QUOTA                   #enable disk quotas

config          kernel  root on wd0

controller      isa0
#controller     eisa0
controller      pci0

controller      fdc0    at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr
disk            fd0     at fdc0 drive 0
#disk           fd1     at fdc0 drive 1
#tape           ft0     at fdc0 drive 2

#options                "CMD640"        # work around CMD640 chip deficiency
controller      wdc0    at isa? port "IO_WD1" bio irq 14 flags 0x80fccf80ff vector wdintr
disk            wd0     at wdc0 drive 0
disk            wd1     at wdc0 drive 1

controller      wdc1    at isa? port "IO_WD2" bio irq 15 flags 0x80ff80ff  vector wdintr
disk            wd2     at wdc1 drive 0
disk            wd3     at wdc1 drive 1

#options                ATAPI           #Enable ATAPI support for IDE bus
#options                ATAPI_STATIC    #Don't do it as an LKM
#device         wcd0            #IDE CD-ROM
#device         wfd0            #IDE Floppy (e.g. LS-120)

# A single entry for any of these controllers (ncr, ahb, ahc, amd) is
# sufficient for any number of installed devices.
#controller     ncr0
#controller     amd0
#controller     ahb0
controller      ahc0

#controller     bt0     at isa? port "IO_BT0" bio irq ? vector bt_isa_intr
#controller     uha0    at isa? port "IO_UHA0" bio irq ? drq 5 vector uhaintr
#controller     aha0    at isa? port "IO_AHA0" bio irq ? drq 5 vector ahaintr
#controller     aic0    at isa? port 0x340 bio irq 11 vector aicintr
#controller     nca0    at isa? port 0x1f88 bio irq 10 vector ncaintr
#controller     nca1    at isa? port 0x350 bio irq 5 vector ncaintr
#controller     sea0    at isa? bio irq 5 iomem 0xc8000 iosiz 0x2000 vector seaintr

controller      scbus0  #base SCSI code
device          sd0     #SCSI disks
device          od0     #See LINT for possible `od' options.
device          st0     #SCSI CD-ROMs
device          cd0     #SCSI optical disk
                        #Only need one of these, the code dynamically grows

#device         wt0     at isa? port 0x300 bio irq 5 drq 1 vector wtintr
#device         mcd0    at isa? port 0x300 bio irq 10 vector mcdintr

#controller     matcd0  at isa? port 0x230 bio

#device         scd0    at isa? port 0x230 bio

# syscons is the default console driver, resembling an SCO console
device          sc0     at isa? port "IO_KBD" tty irq 1 vector scintr
# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
#device         vt0     at isa? port "IO_KBD" tty irq 1 vector pcrint
#options                XSERVER                 # support for X server
#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

options         SC_HISTORY_SIZE=200


device          npx0    at isa? port "IO_NPX" irq 13 vector npxintr

#
# Laptop support (see LINT for more options)
#
device          apm0    at isa? disable flags 0x31 # Advanced Power Management

# PCCARD (PCMCIA) support
#controller     card0
#device         pcic0   at card?
#device         pcic1   at card?

device          sio0    at isa? port "IO_COM1" flags 0x10 tty irq 4 vector siointr
device          sio1    at isa? port "IO_COM2" tty irq 3 vector siointr
#device         sio2    at isa? disable port "IO_COM3" tty irq 5 vector siointr
#device         sio3    at isa? disable port "IO_COM4" tty irq 9 vector siointr

device          lpt0    at isa? port? tty irq 7 vector lptintr
#device         lpt1    at isa? port? tty
#device         mse0    at isa? port 0x23c tty irq 5 vector mseintr

#device         psm0    at isa? port "IO_KBD" conflicts tty irq 12 vector psmintr

# Order is important here due to intrusive probes, do *not* alphabetize
# this list of network interfaces until the probes have been fixed.
# Right now it appears that the ie0 must be probed before ep0. See
# revision 1.20 of this file.
#device de0
device fxp0
#device tx0
#device vx0

#device ed0 at isa? port 0x280 net irq 10 iomem 0xd8000 vector edintr
#device ie0 at isa? port 0x300 net irq 10 iomem 0xd0000 vector ieintr
#device ep0 at isa? port 0x300 net irq 10 vector epintr
#device ex0 at isa? port? net irq? vector exintr
#device fe0 at isa? port 0x300 net irq ? vector feintr
#device le0 at isa? port 0x300 net irq 5 iomem 0xd0000 vector le_intr
#device lnc0 at isa? port 0x280 net irq 10 drq 0 vector lncintr
#device ze0 at isa? port 0x300 net irq 10 iomem 0xd8000 vector zeintr
#device zp0 at isa? port 0x300 net irq 10 iomem 0xd8000 vector zpintr

pseudo-device   loop
pseudo-device   ether
#pseudo-device  sl      1
pseudo-device   ppp     1
pseudo-device   tun     1
pseudo-device   pty     16
pseudo-device   gzip            # Exec gzipped a.out's

# KTRACE enables the system-call tracing facility ktrace(2).
# This adds 4 KB bloat to your kernel, and slightly increases
# the costs of each syscall.
options         KTRACE          #kernel tracing

# This provides support for System V shared memory.
#
options         SYSVSHM
options         SYSVSEM
options         SYSVMSG

rc.conf:
su-2.01# cat rc.conf
#!/bin/sh
#

# This is rc.conf - a file full of useful variables that you can set 
# to change the default startup behavior of your system.
#
# All arguments must be in double or single quotes.
#
#       $Id: rc.conf,v 1.37 1998/02/01 00:20:53 wollman Exp $

##############################################################
### Important initial Boot-time options  #####################
##############################################################

swapfile="NO"           # Set to name of swapfile if aux swapfile desired."             # Set to name of swapfile if aux swapfile desired."         # Set to name of swapfile if aux swapfile desired."             # Set to name of swapfile if aux swapfile desired.
apm_enable="NO"         # Set to YES if you want APM enabled."          # Set to YES if you want APM enabled."          # Set to YES if you want APM enabled."              # Set to YES if you want APM enabled.
pccard_enable="NO"      # Set to YES if you want to configure PCCARD devices."          # Set to YES if you want to configure PCCARD devices."              # Set to YES if you want to configure PCCARD devices."          # Set to YES if you want to configure PCCARD devices.
pccard_mem="DEFAULT"    # If pccard_enable=YES, this is card memory address."           # If pccard_enable=YES, this is card memory address."               # If pccard_enable=YES, this is card memory address."           # If pccard_enable=YES, this is card memory address.
pccard_ifconfig="NO"    # Specialized pccard ethernet configuration (or NO)."           # Specialized pccard ethernet configuration (or NO)."               # Specialized pccard ethernet configuration (or NO)."           # Specialized pccard ethernet configuration (or NO).
local_startup="/usr/local/etc/rc.d /usr/X11R6/etc/rc.d" # startup script dirs."         # startup script dirs."         # startup script dirs."             # startup script dirs.
local_periodic="/usr/local/etc/periodic /usr/X11R6/etc/periodic" # periodic script dirs"                # periodic script dirs"    # periodic script dirs"          # periodic script dirs


##############################################################
###  Network configuration sub-section  ######################
##############################################################

### Basic network options: ###
hostname="p90unix.vipersystems.com"     # Set this!"            # Set this!"            # Set this!"            # Set this!
nisdomainname="NO"              # Set to NIS domain if using NIS (or NO)."              # Set to NIS domain if using NIS (or NO)." # Set to NIS domain if using NIS (or NO)."               # Set to NIS domain if using NIS (or NO).
firewall_enable="NO"            # Set to YES to enable firewall functionality"          # Set to YES to enable firewall functionality"              # Set to YES to enable firewall functionality"          # Set to YES to enable firewall functionality
firewall_type="UNKNOWN"         # Firewall type (see /etc/rc.firewall)"         # Firewall type (see /etc/rc.firewall)"         # Firewall type (see /etc/rc.firewall)"             # Firewall type (see /etc/rc.firewall)
firewall_quiet="NO"             # Set to YES to suppress rule display"          # Set to YES to suppress rule display"          # Set to YES to suppress rule display"              # Set to YES to suppress rule display
tcp_extensions="YES"            # Allow RFC1323 & RFC1644 extensions (or NO)."          # Allow RFC1323 & RFC1644 extensions (or NO)."              # Allow RFC1323 & RFC1644 extensions (or NO)."          # Allow RFC1323 & RFC1644 extensions (or NO).
network_interfaces="fxp0 lo0"   # List of network interfaces (lo0 is loopback)."                # List of network interfaces (lo0 is loopback)."            # List of network interfaces (lo0 is loopback)."                # List of network interfaces (lo0 is loopback).
ifconfig_fxp0="inet 111.111.111.6 netmask 255.255.255.0"
ifconfig_fxp0_alias0="inet 111.111.111.9 netmask 255.255.255.0"
ifconfig_lo0="inet 127.0.0.1"   # default loopback device configuration."               # default loopback device configuration."  # default loopback device configuration."                # default loopback device configuration.
#ifconfig_lo0_alias0="inet 127.0.0.254 netmask 0xffffffff" # Sample alias entry.

### Network daemon (miscellaneous) & NFS options: ###
syslogd_enable="YES"            # Run syslog daemon (or NO)."           # Run syslog daemon (or NO)."           # Run syslog daemon (or NO)."               # Run syslog daemon (or NO).
syslogd_flags=""                # Flags to syslogd (if enabled)."               # Flags to syslogd (if enabled)."               # Flags to syslogd (if enabled)."           # Flags to syslogd (if enabled).
inetd_enable="YES"              # Run the network daemon dispatcher (or NO)."           # Run the network daemon dispatcher (or NO)."               # Run the network daemon dispatcher (or NO)."           # Run the network daemon dispatcher (or NO).
inetd_flags=""                  # Optional flags to inetd."             # Optional flags to inetd."             # Optional flags to inetd."         # Optional flags to inetd.
named_enable="YES"              # Run named, the DNS server (or NO)."           # Run named, the DNS server (or NO)."           # Run named, the DNS server (or NO)."               # Run named, the DNS server (or NO).
named_program="/usr/local/sbin/named"   # named program, in case we want bind8 instead."                # named program, in case we want bind8 instead."            # named program, in case we want bind8 instead."                # named program, in case we want bind8 instead.
named_flags="-b /etc/namedb/named.conf"                 # Flags to named (if enabled)."         # Flags to named (if enabled)."    # Flags to named (if enabled)."          # Flags to named (if enabled).
kerberos_server_enable="YES"    # Run a kerberos master server (or NO)."                # Run a kerberos master server (or NO)."   # Run a kerberos master server (or NO)."         # Run a kerberos master server (or NO).
kadmind_server_enable="YES"     # Run kadmind (or NO) -- do not run on"         # Run kadmind (or NO) -- do not run on"         # Run kadmind (or NO) -- do not run on"             # Run kadmind (or NO) -- do not run on
                                # a slave kerberos server
kerberos_stash="YES"            # Is the kerberos master key stashed?"          # Is the kerberos master key stashed?"          # Is the kerberos master key stashed?"              # Is the kerberos master key stashed?
rwhod_enable="NO"               # Run the rwho daemon (or NO)."         # Run the rwho daemon (or NO)."         # Run the rwho daemon (or NO)."             # Run the rwho daemon (or NO).
amd_enable="NO"                 # Run amd service with $amd_flags (or NO)."             # Run amd service with $amd_flags (or NO)."# Run amd service with $amd_flags (or NO)."              # Run amd service with $amd_flags (or NO).
amd_flags="-a /net -c 1800 -k i386 -d my.domain -l syslog /host /etc/amd.map"
nfs_client_enable="YES"         # This host is an NFS client (or NO)."          # This host is an NFS client (or NO)."          # This host is an NFS client (or NO)."              # This host is an NFS client (or NO).
nfs_client_flags="-n 4"         # Flags to nfsiod (if enabled)."                # Flags to nfsiod (if enabled)."                # Flags to nfsiod (if enabled)."            # Flags to nfsiod (if enabled).
nfs_server_enable="YES"         # This host is an NFS server (or NO)."          # This host is an NFS server (or NO)."          # This host is an NFS server (or NO)."              # This host is an NFS server (or NO).
nfs_server_flags="-u -t 4"      # Flags to nfsd (if enabled)."          # Flags to nfsd (if enabled)."          # Flags to nfsd (if enabled)."              # Flags to nfsd (if enabled).
mountd_flags="-r"               # Flags to mountd (if NFS server enabled)."             # Flags to mountd (if NFS server enabled)."# Flags to mountd (if NFS server enabled)."              # Flags to mountd (if NFS server enabled).
nfs_reserved_port_only="NO"     # Provide NFS only on secure port (or NO)."             # Provide NFS only on secure port (or NO)."# Provide NFS only on secure port (or NO)."              # Provide NFS only on secure port (or NO).
rpc_lockd_enable="NO"           # Run NFS rpc.lockd (*broken!*) if nfs_server."         # Run NFS rpc.lockd (*broken!*) if nfs_server."             # Run NFS rpc.lockd (*broken!*) if nfs_server."         # Run NFS rpc.lockd (*broken!*) if nfs_server.
rpc_statd_enable="YES"          # Run NFS rpc.statd if nfs_server (or NO)."             # Run NFS rpc.statd if nfs_server (or NO)."# Run NFS rpc.statd if nfs_server (or NO)."              # Run NFS rpc.statd if nfs_server (or NO).
portmap_enable="YES"            # Run the portmapper service (or NO)."          # Run the portmapper service (or NO)."          # Run the portmapper service (or NO)."              # Run the portmapper service (or NO).
portmap_flags=""                # Flags to portmap (if enabled)."               # Flags to portmap (if enabled)."               # Flags to portmap (if enabled)."           # Flags to portmap (if enabled).
xtend_enable="NO"               # Run the X-10 power controller daemon."                # Run the X-10 power controller daemon."   # Run the X-10 power controller daemon."         # Run the X-10 power controller daemon.
xtend_flags=""                  # Flags to xtend (if enabled)."         # Flags to xtend (if enabled)."         # Flags to xtend (if enabled)."             # Flags to xtend (if enabled).

### Network Time Services options: ###
timed_enable="NO"               # Run the time daemon (or NO)."         # Run the time daemon (or NO)."         # Run the time daemon (or NO)."             # Run the time daemon (or NO).
timed_flags=""                  # Flags to timed (if enabled)."         # Flags to timed (if enabled)."         # Flags to timed (if enabled)."             # Flags to timed (if enabled).
ntpdate_enable="NO"             # Run the ntpdate to sync time (or NO)."                # Run the ntpdate to sync time (or NO)."   # Run the ntpdate to sync time (or NO)."         # Run the ntpdate to sync time (or NO).
ntpdate_flags=""                # Flags to ntpdate (if enabled)."               # Flags to ntpdate (if enabled)."               # Flags to ntpdate (if enabled)."           # Flags to ntpdate (if enabled).
xntpd_enable="NO"               # Run xntpd Network Time Protocol (or NO)."             # Run xntpd Network Time Protocol (or NO)."# Run xntpd Network Time Protocol (or NO)."              # Run xntpd Network Time Protocol (or NO).
xntpd_flags=""                  # Flags to xntpd (if enabled)."         # Flags to xntpd (if enabled)."         # Flags to xntpd (if enabled)."             # Flags to xntpd (if enabled).
tickadj_enable="NO"             # Run tickadj (or NO)."         # Run tickadj (or NO)."         # Run tickadj (or NO)."         # Run tickadj (or NO).
tickadj_flags="-Aq"             # Flags to tickadj (if enabled)."               # Flags to tickadj (if enabled)."               # Flags to tickadj (if enabled)."           # Flags to tickadj (if enabled).

# Network Information Services (NIS) options: ###
nis_client_enable="NO"          # We're an NIS client (or NO)."         # We're an NIS client (or NO)."         # We're an NIS client (or NO)."             # We're an NIS client (or NO).
nis_client_flags=""             # Flags to ypbind (if enabled)."                # Flags to ypbind (if enabled)."                # Flags to ypbind (if enabled)."            # Flags to ypbind (if enabled).
nis_ypset_enable="NO"           # Run ypset at boot time (or NO)."              # Run ypset at boot time (or NO)."              # Run ypset at boot time (or NO)."          # Run ypset at boot time (or NO).
nis_ypset_flags=""              # Flags to ypset (if enabled)."         # Flags to ypset (if enabled)."         # Flags to ypset (if enabled)."             # Flags to ypset (if enabled).
nis_server_enable="NO"          # We're an NIS server (or NO)."         # We're an NIS server (or NO)."         # We're an NIS server (or NO)."             # We're an NIS server (or NO).
nis_server_flags=""             # Flags to ypserv (if enabled)."                # Flags to ypserv (if enabled)."                # Flags to ypserv (if enabled)."            # Flags to ypserv (if enabled).
nis_ypxfrd_enable="NO"          # Run rpc.ypxfrd at boot time (or NO)."         # Run rpc.ypxfrd at boot time (or NO)."         # Run rpc.ypxfrd at boot time (or NO)."             # Run rpc.ypxfrd at boot time (or NO).
nis_ypxfrd_flags=""             # Flags to rpc.ypxfrd (if enabled)."            # Flags to rpc.ypxfrd (if enabled)."            # Flags to rpc.ypxfrd (if enabled)."                # Flags to rpc.ypxfrd (if enabled).
nis_yppasswdd_enable="NO"       # Run rpc.yppasswdd at boot time (or NO)."              # Run rpc.yppasswdd at boot time (or NO)." # Run rpc.yppasswdd at boot time (or NO)."               # Run rpc.yppasswdd at boot time (or NO).
nis_yppasswdd_flags=""          # Flags to rpc.yppasswdd (if enabled)."         # Flags to rpc.yppasswdd (if enabled)."         # Flags to rpc.yppasswdd (if enabled)."             # Flags to rpc.yppasswdd (if enabled).

### Network routing options: ###
defaultrouter="111.111.111.1"           # Set to default gateway (or NO)."              # Set to default gateway (or NO)."         # Set to default gateway (or NO)."               # Set to default gateway (or NO).
static_routes=""                # Set to static route list (or leave empty)."           # Set to static route list (or leave empty)."               # Set to static route list (or leave empty)."           # Set to static route list (or leave empty).
gateway_enable="YES"            # Set to YES if this host will be a gateway."           # Set to YES if this host will be a gateway."               # Set to YES if this host will be a gateway."           # Set to YES if this host will be a gateway.
router_enable="NO"              # Set to YES to enable a routing daemon."               # Set to YES to enable a routing daemon."  # Set to YES to enable a routing daemon."                # Set to YES to enable a routing daemon.
router="routed"                 # Name of routing daemon to use if enabled."            # Name of routing daemon to use if enabled.# Name of routing daemon to use if enabled."             # Name of routing daemon to use if enabled.
router_flags="-q"               # Flags for routing daemon."            # Flags for routing daemon."            # Flags for routing daemon."                # Flags for routing daemon.
mrouted_enable="YES"            # Do multicast routing (see /etc/mrouted.conf)."                # Do multicast routing (see /etc/mrouted.conf)."            # Do multicast routing (see /etc/mrouted.conf)."                # Do multicast routing (see /etc/mrouted.conf).
mrouted_flags=""                # Flags for multicast routing daemon."          # Flags for multicast routing daemon."          # Flags for multicast routing daemon."              # Flags for multicast routing daemon.
ipxgateway_enable="NO"          # Set to YES to enable IPX routing."            # Set to YES to enable IPX routing."            # Set to YES to enable IPX routing."                # Set to YES to enable IPX routing.
ipxrouted_enable="NO"           # Set to YES to run the IPX routing daemon."            # Set to YES to run the IPX routing daemon.# Set to YES to run the IPX routing daemon."             # Set to YES to run the IPX routing daemon.
ipxrouted_flags=""              # Flags for IPX routing daemon."                # Flags for IPX routing daemon."                # Flags for IPX routing daemon."            # Flags for IPX routing daemon.
arpproxy_all=""                 # replaces obsolete kernel option ARP_PROXYALL."                # replaces obsolete kernel option ARP_PROXYALL."            # replaces obsolete kernel option ARP_PROXYALL."                # replaces obsolete kernel option ARP_PROXYALL.


##############################################################
###  System console options  #################################
##############################################################

keymap="NO"             # keymap in /usr/share/syscons/keymaps/* (or NO)."              # keymap in /usr/share/syscons/keymaps/* (or NO)."          # keymap in /usr/share/syscons/keymaps/* (or NO)."              # keymap in /usr/share/syscons/keymaps/* (or NO).
keyrate="NO"            # keyboard rate to: slow, normal, fast (or NO)."                # keyboard rate to: slow, normal, fast (or NO)."            # keyboard rate to: slow, normal, fast (or NO)."                # keyboard rate to: slow, normal, fast (or NO).
keybell="NO"            # bell to duration.pitch or normal or visual (or NO)."          # bell to duration.pitch or normal or visual (or NO)."              # bell to duration.pitch or normal or visual (or NO)."          # bell to duration.pitch or normal or visual (or NO).
keychange="NO"          # function keys default values (or NO)."                # function keys default values (or NO)."           # function keys default values (or NO)."         # function keys default values (or NO).
cursor="NO"             # cursor type {normal|blink|destructive} (or NO)."              # cursor type {normal|blink|destructive} (or NO)."          # cursor type {normal|blink|destructive} (or NO)."              # cursor type {normal|blink|destructive} (or NO).
scrnmap="NO"            # screen map in /usr/share/syscons/scrnmaps/* (or NO)."         # screen map in /usr/share/syscons/scrnmaps/* (or NO)."             # screen map in /usr/share/syscons/scrnmaps/* (or NO)."         # screen map in /usr/share/syscons/scrnmaps/* (or NO).
font8x16="NO"           # font 8x16 from /usr/share/syscons/fonts/* (or NO)."           # font 8x16 from /usr/share/syscons/fonts/* (or NO)."               # font 8x16 from /usr/share/syscons/fonts/* (or NO)."           # font 8x16 from /usr/share/syscons/fonts/* (or NO).
font8x14="NO"           # font 8x14 from /usr/share/syscons/fonts/* (or NO)."           # font 8x14 from /usr/share/syscons/fonts/* (or NO)."               # font 8x14 from /usr/share/syscons/fonts/* (or NO)."           # font 8x14 from /usr/share/syscons/fonts/* (or NO).
font8x8="NO"            # font 8x8 from /usr/share/syscons/fonts/* (or NO)."            # font 8x8 from /usr/share/syscons/fonts/* (or NO)."                # font 8x8 from /usr/share/syscons/fonts/* (or NO)."            # font 8x8 from /usr/share/syscons/fonts/* (or NO).
blanktime="300"         # blank time (in seconds) or "NO" to turn it off."              # blank time (in seconds) or "NO" to turn it off."          # blank time (in seconds) or "NO" to turn it off."              # blank time (in seconds) or "NO" to turn it off.
saver="blank"              # screen saver: blank/daemon/green/snake/star/NO."           # screen saver: blank/daemon/green/snake/star/NO."          # screen saver: blank/daemon/green/snake/star/NO."              # screen saver: blank/daemon/green/snake/star/NO.
moused_type="NO"        # See man page for rc.conf(5) for available settings."          # See man page for rc.conf(5) for available settings."              # See man page for rc.conf(5) for available settings."          # See man page for rc.conf(5) for available settings.
moused_port="/dev/cuaa0" # Set to your mouse port (required if mousetype set)."         # Set to your mouse port (required if mousetype set)."              # Set to your mouse port (required if mousetype set)."          # Set to your mouse port (required if mousetype set).
moused_flags=""         # Any additional flags to moused."              # Any additional flags to moused."              # Any additional flags to moused."          # Any additional flags to moused.


##############################################################
###  Miscellaneous administrative options  ###################
##############################################################

cron_enable="YES"       # Run the periodic job daemon."         # Run the periodic job daemon."         # Run the periodic job daemon."             # Run the periodic job daemon.
lpd_enable="NO"         # Run the line printer daemon."         # Run the line printer daemon."         # Run the line printer daemon."             # Run the line printer daemon.
lpd_flags=""            # Flags to lpd (if enabled)."           # Flags to lpd (if enabled)."           # Flags to lpd (if enabled)."               # Flags to lpd (if enabled).
sendmail_enable="YES"   # Run the sendmail daemon (or NO)."             # Run the sendmail daemon (or NO)."             # Run the sendmail daemon (or NO)."         # Run the sendmail daemon (or NO).
sendmail_flags="-bd -q30m" # -bd is pretty mandatory."          # -bd is pretty mandatory."             # -bd is pretty mandatory."# -bd is pretty mandatory.
dumpdev="NO"            # Device name to crashdump to (if enabled)."            # Device name to crashdump to (if enabled)."       # Device name to crashdump to (if enabled)."             # Device name to crashdump to (if enabled).
check_quotas="YES"      # Check quotas (or NO)."                # Check quotas (or NO)."                # Check quotas (or NO)."   # Check quotas (or NO).
accounting_enable="NO"  # Turn on process accounting (or NO)."          # Turn on process accounting (or NO)."          # Turn on process accounting (or NO)."              # Turn on process accounting (or NO).
ibcs2_enable="NO"       # Ibcs2 (SCO) emulation loaded at startup (or NO)."             # Ibcs2 (SCO) emulation loaded at startup (or NO)."         # Ibcs2 (SCO) emulation loaded at startup (or NO)."             # Ibcs2 (SCO) emulation loaded at startup (or NO).
linux_enable="YES"      # Linux emulation loaded at startup (or NO)."           # Linux emulation loaded at startup (or NO)."      # Linux emulation loaded at startup (or NO)."            # Linux emulation loaded at startup (or NO).
rand_irqs="NO"          # Stir the entropy pool (like "5 11" or NO)."           # Stir the entropy pool (like "5 11" or NO)."      # Stir the entropy pool (like "5 11" or NO)."            # Stir the entropy pool (like "5 11" or NO).
clear_tmp_enable="NO"   # Clear /tmp at startup."               # Clear /tmp at startup."               # Clear /tmp at startup."  # Clear /tmp at startup.
ldconfig_paths="/usr/lib/compat /usr/X11R6/lib /usr/local/lib" # shared library search paths"           # shared library search paths"              # shared library search paths"          # shared library search paths

##############################################################
### Allow local configuration override at the very end here ##
##############################################################
if [ -f /etc/rc.conf.local ]; then
        . /etc/rc.conf.local
fi
>How-To-Repeat:
See above.
>Fix:

>Release-Note:
>Audit-Trail:

From: Bruce Evans <bde@zeta.org.au>
To: freebsd-gnats-submit@FreeBSD.ORG, jason_smethers@bigfoot.com
Cc:  Subject: Re: kern/5904: panic: newfs
Date: Tue, 3 Mar 1998 23:36:08 +1100

 >>Description:
 >When newfs a drive with:
 >su-2.01#umount /dev/wd3c
 >su-2.01#newfs -b 8192 -f 1024 /dev/wd3c
 >
 >the system panics with:
 >panic: bremfree removing a buffer whan not on a queue
 
 I think there is already a PR for this.
 
 It is caused by stale objects for the vnode of the device.  Mounting a
 ufs file system provides an object, normally with a block size of 8K.
 The object doesn't go away on unmount, and a too-small block size of
 2K is used for block devices, and either the different block sizes
 or the existence of the object cause the panic.
 
 Possible workaround: don't newfs the block device.  (Never newfs a block
 device anyway.  Block devices are normally slower (normally much slower
 for newfs) and always give worse error reporting.)  I'm not sure if this
 actually avoids the problem.  There may be a coherency problem when the
 new file system is mounted, or the block size of the new file system
 may be different
 
 A related problem:
 
 	# mount -t msdosfs /dev/wd3c ...
 	# umount /dev/wd3c	# device containing an msdosfs file system
 				# vnode doesn't have an object
 	# mount -t ufs /dev/wd3c ...	# oops
 				# vnode now has an object
 	# mount -t msdosfs /dev/wd3c ...	# panic
 
 Here the existence of the object causes the panic.  msdosfs requests
 misaligned blocks, and allocbuf() can't handle this.
 
 Bruce
State-Changed-From-To: open->closed 
State-Changed-By: luoqi 
State-Changed-When: Tue Dec 22 08:34:00 PST 1998 
State-Changed-Why:  
Fix committed. 
>Unformatted:
