Date: Thu, 22 Apr 1999 18:56:43 -0400 (EDT) From: mwlucas@exceptionet.com To: stable@freebsd.org Subject: nmbclusters=4096 doesn't increase mbufs Message-ID: <199904222256.SAA12478@easeway.com>
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Hello,
We have a 2.2.8-stable box running IPFilter. This box keeps runninng out
of mbufs very quickly.
We have a kernel (full config below) that includes the following lines:
maxusers 256
options "NMBCLUSTERS=4096"
This should give us a whole heap of mbufs.
A netstat -m, however, shows us:
scooby# netstat -m
136 mbufs in use:
130 mbufs allocated to data
1 mbufs allocated to packet headers
4 mbufs allocated to protocol control blocks
1 mbufs allocated to socket names and addresses
128/132 mbuf clusters in use
281 Kbytes allocated to network (97% in use)
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines
This is less than 30 seconds after boot.
Shouldn't the extra mbufs show up here? They do my other IPFilter boxes.
What silly little switch am I missing?
Full kernel config follows.
Thanks,
ml
scooby# cd /sys/i386/conf
scooby# cat TEST
#
# GENERIC -- Generic machine with WD/AHx/NCR/BTx family disks
#
# 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 1.77.2.28 1998/09/26 17:36:14 wpaul Exp $
machine "i386"
#cpu "I386_CPU"
#cpu "I486_CPU"
cpu "I586_CPU"
#cpu "I686_CPU"
ident TEST
maxusers 256
options "NMBCLUSTERS=4096"
#options MATH_EMULATE #Support for x87 emulation
options INET #InterNETworking
options IPFILTER_LKM
options IPFILTER_LOG
options FFS #Berkeley Fast Filesystem
#options NFS #Network Filesystem
#options MSDOSFS #MSDOS Filesystem
#options "CD9660" #ISO 9660 Filesystem
options PROCFS #Process filesystem
options "COMPAT_43" #Compatible with BSD 4.3 [KEEP
THIS!]
#options SCSI_DELAY=15 #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
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
# Unless you know very well what you're doing, leave ft0 at drive 2, or
# remove the line entirely if you don't need it. Trying to configure
# it on another unit might cause surprises, see PR kern/7176.
#tape ft0 at fdc0 drive 2
options "CMD640" # work around CMD640 chip deficiency
controller wdc0 at isa? port "IO_WD1" bio irq 14 vector wdintr
disk wd0 at wdc0 drive 0
#disk wd1 at wdc0 drive 1
#controller wdc1 at isa? port "IO_WD2" bio irq 15 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 (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 dpt0
#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
#options DPT_MEASURE_PERFORMANCE # Required by DPT driver??
#options DPT_VERIFY_HINTR # Some hardware must have
it!
#options DPT_TRACK_CCB_STATES # Some hardware must have
it!
#options DPT_HANDLE_TIMEOUTS # Some hardware must have
it!
#options DPT_TIMEOUT_FACTOR=4 # Some hardware needs more
controller scbus0
#device sd0
#device od0 #See LINT for possible `od' options.
#device st0
#device cd0 #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
# Mandatory, don't remove
device npx0 at isa? port "IO_NPX" flags 0x1 irq 13 vector
npxintr
#
# Laptop support (see LINT for more options)
#
#device apm0 at isa? disable # Advanced Power Management
#options APM_BROKEN_STATCLOCK # Workaround some buggy APM
BIOS
# PCCARD (PCMCIA) support
#controller card0
#device pcic0 at card?
#device pcic1 at card?
device sio0 at isa? port "IO_COM1" 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 tl0
#device tx0
#device vx0
#device xl0
#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 5 iomem 0xd8000 vector zeintr
#device zp0 at isa? port 0x300 net irq 10 iomem 0xd8000 vector zpintr
#device cs0 at isa? disable port 0x300 net irq ? vector csintr
pseudo-device loop
pseudo-device ether
pseudo-device log
#pseudo-device sl 1
#pseudo-device ppp 1
#pseudo-device vn 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 SYSVMSG
options SYSVSEM
#Berkeley packet filter
pseudo-device bpfilter 4
----- End of forwarded message from Brett Hansen -----
--
Michael Lucas |
Exceptionet, Inc. | www.exceptionet.com
"Exceptional Networking" |
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