Hi,
On a FreeBSD 4.0-19991223-SNAP system...
I just ran into a situation that caused me to have to reboot
the machine before understanding what had really happenned...
The problems comes down to:
kern.maxfiles: 4136
kern.maxfilesperproc: 4136
Thus, because I had a root uid server that looped chewing
up file descriptors, it also filled up the system file table.
I realize this is end-user/administrator fixable, but I'm
not sure the default should have these be the same...
Thanks,
John
kernel config below:
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
# http://www.freebsd.org/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 1.217 1999/12/19 20:33:05 billf Exp $
machine i386
#cpu I386_CPU
#cpu I486_CPU
#cpu I586_CPU
cpu I686_CPU
ident BBKERN
maxusers 128
#makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
options MATH_EMULATE #Support for x87 emulation
options INET #InterNETworking
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep this!]
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" req'ed
options MSDOSFS #MSDOS Filesystem
options CD9660 #ISO 9660 Filesystem
options CD9660_ROOT #CD-ROM usable as root. "CD9660" req'ed
options PROCFS #Process filesystem
options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
options SCSI_DELAY=15000 #Be pessimistic about Joe SCSI device
options UCONSOLE #Allow users to grab the console
options USERCONFIG #boot -c editor
options VISUAL_USERCONFIG #visual boot -c editor
options KTRACE #ktrace(1) syscall trace support
options SYSVSHM #SYSV-style shared memory
options SYSVMSG #SYSV-style message queues
options SYSVSEM #SYSV-style semaphores
options SEMMNI=1024 # 1024 semaphore ids
options SEMMNS=1024 # 1024 semaphores
# To make an SMP kernel, the next two are needed
#options SMP # Symmetric MultiProcessor Kernel
#options APIC_IO # Symmetric (APIC) I/O
# Optionally these may need tweaked, (defaults shown):
#options NCPU=2 # number of CPUs
#options NBUS=4 # number of busses
#options NAPIC=1 # number of IO APICs
#options NINTR=24 # number of INTs
controller isa0
#controller eisa0
controller pci0
# Floppy drives
controller fdc0 at isa? port IO_FD1 irq 6 drq 2
device fd0 at fdc0 drive 0
device fd1 at fdc0 drive 1
# ATA and ATAPI devices
controller ata0 at isa? port IO_WD1 irq 14
controller ata1 at isa? port IO_WD2 irq 15
controller ata2
device atadisk0 # ATA disk drives
device atapicd0 # ATAPI CDROM drives
device atapifd0 # ATAPI floppy drives
device atapist0 # ATAPI tape drives
options ATA_STATIC_ID #Static device numbering
#options ATA_ENABLE_ATAPI_DMA #Enable DMA on ATAPI devices
# SCSI Controllers
# A single entry for any of these controllers (ahb, ahc, amd, ncr, etc...) is
# sufficient for any number of installed devices.
#controller ahb0 # EISA AHA1742 family
controller ahc0 # AHA2940 and onboard AIC7xxx devices
#controller amd0 # AMD 53C974 (Teckram DC-390(T))
#controller dpt0 # DPT Smartcache - See LINT for options!
#controller isp0 # Qlogic family
#controller ncr0 # NCR/Symbios Logic
#controller sym0 # NCR/Symbios Logic (do not mix with ncr, it conflicts)
#controller adv0 at isa? port ? irq ?
#controller adw0
#controller bt0 at isa? port ? irq ?
#controller aha0 at isa? port ? irq ?
#controller aic0 at isa? port ? irq ?
# SCSI peripherals
# Only one of each of these is needed, they are dynamically allocated.
controller scbus0 # SCSI bus (required)
device da0 # Direct Access (disks)
device sa0 # Sequential Access (tape etc)
device cd0 # CD
device pass0 # Passthrough device (direct SCSI access)
# RAID controllers
#device amr0 # AMI MegaRAID
#device mlx0 # Mylex DAC960 family
# atkbdc0 controls both the keyboard and the PS/2 mouse
controller atkbdc0 at isa? port IO_KBD
device atkbd0 at atkbdc? irq 1
device psm0 at atkbdc? irq 12
device vga0 at isa? port ? conflicts
# splash screen/screen saver
pseudo-device splash
# syscons is the default console driver, resembling an SCO console
device sc0 at isa?
# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
#device vt0 at isa?
#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
# 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? disable flags 0x20 # Advanced Power Management
# PCCARD (PCMCIA) support
#controller card0
#device pcic0 at isa?
#device pcic1 at isa?
# 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? port? flags 0x40 irq 7
controller ppbus0 # Parallel port bus (required)
device lpt0 # Printer
#device plip0 # TCP/IP over parallel
device ppi0 # Parallel port interface device
#controller vpo0 # Requires scbus and da0
# PCI Ethernet NICs.
#device de0 # DEC/Intel DC21x4x (``Tulip'')
device fxp0 # Intel EtherExpress PRO/100B (82557, 82558)
#device tx0 # SMC 9432TX (83c170 ``EPIC'')
device vx0 # 3Com 3c590, 3c595 (``Vortex'')
# PCI Ethernet NICs that use the common MII bus controller code.
controller miibus0 # MII bus support
#device dc0 # DEC/Intel 21143 and various workalikes
#device rl0 # RealTek 8129/8139
#device sf0 # Adaptec AIC-6915 (``Starfire'')
#device sis0 # Silicon Integrated Systems SiS 900/SiS 7016
#device ste0 # Sundance ST201 (D-Link DFE-550TX)
#device tl0 # Texas Instruments ThunderLAN
#device vr0 # VIA Rhine, Rhine II
#device wb0 # Winbond W89C840F
device xl0 # 3Com 3c90x (``Boomerang'', ``Cyclone'')
# ISA Ethernet NICs.
#device ed0 at isa? port 0x280 irq 10 iomem 0xd8000
#device ex0 at isa? port? irq?
# NOTE: This removes the isa attachment so that the pccard unit numbers
# come out right.
device ep0
# WaveLAN/IEEE 802.1 wireless NICs. Note: the WaveLAN/IEEE really
# exists only as a PCMCIA device, so there is no ISA attatement needed
# and resources will always be dynamically assigned by the pccard code.
#device wi0
# 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 fe0 at isa? port 0x300 irq ?
#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 irq ?
#device sn0 at isa? port 0x300 irq 10
# requires PCCARD (PCMCIA) support to be activated
#device xe0 at isa? port? irq ?
# Pseudo devices - the number indicates how many units to allocated.
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"
# 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
#controller uhci0 # UHCI PCI->USB interface
#controller ohci0 # OHCI PCI->USB interface
#controller usb0 # USB Bus (required)
#device ugen0 # Generic
#device uhid0 # "Human Interface Devices"
#device ukbd0 # Keyboard
#device ulpt0 # Printer
#controller umass0 # Disks/Mass storage - Requires scbus and da0
#device ums0 # Mouse
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