>Number:         23469
>Category:       kern
>Synopsis:       postfix/master dies with "pipe: too many open files" on startup
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Nov 17 18:48:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Jun-ichiro itojun Hagino
>Release:        NetBSD 1.6ZF
>Organization:
	itojun.org
>Environment:
System: NetBSD starfruit.itojun.org 1.6ZF NetBSD 1.6ZF (STARFRUIT) #527: Mon Nov 17 14:56:55 JST 2003 itojun@starfruit.itojun.org:/home/itojun/NetBSD/src/sys/arch/i386/compile/STARFRUIT i386
Architecture: i386

	the userland is built around Nov 14.
	thinkpad X31, 1G memory
Machine: i386
>Description:
	when postfix starts in /etc/rc.d startup, it sometimes cannot start
	because of the following error:
		postfix/master: pipe: too many open files
	however, it happens only occasionally, and if i start postfix by
	hand afterwards it works okay.

	i'm using named 9.2.3, and in-tree postfix.

>How-To-Repeat:

-- login.conf
# $OpenBSD: login.conf,v 1.14 2003/05/13 04:10:12 mho Exp $

#
# Sample login.conf file.  See login.conf(5) for details.
#

#
# Standard authentication types:
#
# krb5-or-pwd	First try Kerberos V password, then local password file
# passwd	Use only the local password file
# krb5		Use only the Kerberos V password
# chpass	Do not authenticate, but change users password (change
#		the kerberos password if the user has one, else change
#		the local password)
# lchpass	Do not login; change user's local password instead
# radius	Use radius authentication
# skey		Use S/Key authentication
# activ		ActivCard X9.9 token authentication
# crypto	CRYPTOCard X9.9 token authentication
# snk		Digital Pathways SecureNet Key authentication
# token		Generic X9.9 token authentication
#

# Default authentication methods
auth-defaults:auth=passwd,skey:

# Default authentication methods for ftp
auth-ftp-defaults:auth-ftp=passwd:

#
# The default values
# To alter the default authentication types change the line:
#	:tc=auth-defaults:\
# to be read something like: (enables passwd, "myauth", and activ)
#	:auth=passwd,myauth,activ:\
# Any value changed in the daemon class should be reset in default
# class.
#
default:\
	:path=/usr/bin /bin /usr/sbin /sbin /usr/X11R6/bin /usr/local/bin:\
	:umask=022:\
	:datasize-max=512M:\
	:datasize-cur=256M:\
	:maxproc-max=128:\
	:maxproc-cur=64:\
	:openfiles-cur=64:\
	:stacksize-cur=4M:\
	:localcipher=blowfish,6:\
	:ypcipher=old:\
	:tc=auth-defaults:\
	:tc=auth-ftp-defaults:

#
# Settings used by /etc/rc and root
# This must be set properly for daemons started as root by inetd as well.
# Be sure reset these values back to system defaults in the default class!
#
daemon:\
	:ignorenologin:\
	:datasize=infinity:\
	:maxproc=infinity:\
	:openfiles-cur=128:\
	:stacksize-cur=8M:\
	:localcipher=blowfish,8:\
	:tc=default:

#
# Staff have fewer restrictions and can login even when nologins are set.
#
staff:\
	:datasize-cur=512M:\
	:datasize-max=infinity:\
	:maxproc-max=256:\
	:maxproc-cur=128:\
	:ignorenologin:\
	:requirehome@:\
	:tc=default:

-- /etc/rc.conf
#	$NetBSD: rc.conf,v 1.96 2000/10/14 17:01:29 wiz Exp $
#
# see rc.conf(5) for more information.
#
# Use program=YES to enable program, NO to disable it. program_flags are
# passed to the program on the command line.
#

# Load the defaults in from /etc/defaults/rc.conf (if it's readable).
# These can be overridden below.
#
if [ -r /etc/defaults/rc.conf ]; then
	. /etc/defaults/rc.conf
fi

# If this is not set to YES, the system will drop into single-user mode.
#
rc_configured=YES

# Add local overrides below
#
hostname=starfruit.itojun.org
named=YES
sshd=YES
ip6mode=autohost
wscons=YES
postfix=YES
apmd=YES


--- /etc/rc.conf.d/named
command=/usr/pkg/sbin/named


--- dmesg output
NetBSD 1.6ZF (STARFRUIT) #527: Mon Nov 17 14:56:55 JST 2003
	itojun@starfruit.itojun.org:/home/itojun/NetBSD/src/sys/arch/i386/compile/STARFRUIT
total memory = 1022 MB
avail memory = 941 MB
using 6144 buffers containing 52476 KB of memory
BIOS32 rev. 0 found at 0xfd750
mainbus0 (root)
cpu0 at mainbus0: (uniprocessor)
cpu0: Intel Pentium M (Banias) (686-class), 1398.90 MHz, id 0x695
cpu0: features a7e9f9bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,SEP,MTRR>
cpu0: features a7e9f9bf<PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX>
cpu0: features a7e9f9bf<FXSR,SSE,SSE2,TM,SBF>
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: Intel 82855PM MCH Host Controller (rev. 0x03)
agp0 at pchb0: aperture at 0xd0000000, size 0x10000000
ppb0 at pci0 dev 1 function 0: Intel 82855PM Host-to-AGP Bridge (rev. 0x03)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
vga1 at pci1 dev 0 function 0: ATI Technologies Radeon Mobility M6 LY (AGP) (rev. 0x00)
wsdisplay0 at vga1 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
uhci0 at pci0 dev 29 function 0: Intel 82801DB/DBM USB UHCI Controller #1 (rev. 0x01)
uhci0: interrupting at irq 11
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1 at pci0 dev 29 function 1: Intel 82801DB/DBM USB UHCI Controller #2 (rev. 0x01)
uhci1: interrupting at irq 11
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2 at pci0 dev 29 function 2: Intel 82801DB/DBM USB UHCI Controller #3 (rev. 0x01)
uhci2: interrupting at irq 11
usb2 at uhci2: USB revision 1.0
uhub2 at usb2
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
Intel 82801DB/DBM USB EHCI Controller (USB serial bus, interface 0x20, revision 0x01) at pci0 dev 29 function 7 not configured
ppb1 at pci0 dev 30 function 0: Intel 82801BAM Hub-to-PCI Bridge (rev. 0x81)
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled
cbb0 at pci2 dev 0 function 0: Ricoh 5C476 PCI-CardBus bridge (rev. 0xaa)
cbb1 at pci2 dev 0 function 1: Ricoh 5C476 PCI-CardBus bridge (rev. 0xaa)
fwohci0 at pci2 dev 0 function 2: Ricoh 5C552 PCI-CardBus bridge/Firewire (rev. 0x02)
fwohci0: interrupting at irq 11
fwohci0: OHCI 1.0, 00:06:1b:03:10:00:b0:49, 400Mb/s, 2048 max_rec, 4 ir_ctx, 4 it_ctx
wm0 at pci2 dev 1 function 0: Intel i82540EP 1000BASE-T Ethernet, rev. 3
wm0: interrupting at irq 11
wm0: 32-bit 33MHz PCI bus
wm0: 64 word (6 address bits) MicroWire EEPROM
wm0: Ethernet address 00:09:6b:fa:6f:49
makphy0 at wm0 phy 1: Marvell 88E1011 Gigabit PHY, rev. 4
makphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
ath0 at pci2 dev 2 function 0
ath0: interrupting at irq 11
ath0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
ath0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
ath0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
ath0: 802.11 address: 00:05:4e:42:e5:5e
cbb0: interrupting at irq 11
cardslot0 at cbb0 slot 0 flags 0
cardbus0 at cardslot0: bus 3 device 0
pcmcia0 at cardslot0
cbb1: interrupting at irq 11
cardslot1 at cbb1 slot 1 flags 0
cardbus1 at cardslot1: bus 6 device 0
pcmcia1 at cardslot1
pcib0 at pci0 dev 31 function 0
pcib0: Intel 82801DB ISA Bridge (rev. 0x01)
piixide0 at pci0 dev 31 function 1
piixide0: Intel 82801DBM IDE Controller (ICH4-M) (rev. 0x01)
piixide0: bus-master DMA support present
piixide0: primary channel wired to compatibility mode
piixide0: primary channel interrupting at irq 14
atabus0 at piixide0 channel 0
piixide0: secondary channel wired to compatibility mode
piixide0: secondary channel interrupting at irq 15
atabus1 at piixide0 channel 1
Intel 82801DB/DBM SMBus Controller (SMBus serial bus, revision 0x01) at pci0 dev 31 function 3 not configured
auich0 at pci0 dev 31 function 5: i82801DB/DBM (ICH4/ICH4M) AC-97 Audio
auich0: interrupting at irq 11
auich0: The 2nd codec is ready.
auich0: ac97: Analog Devices AD1981B codec; headphone, 20 bit DAC, no 3D stereo
auich0: ac97: ext id 601<AC97_22,AMAP,VRA>
Intel 82801DB/DBM AC97 Modem Controller (modem communications, revision 0x01) at pci0 dev 31 function 6 not configured
isa0 at pcib0
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
lpt2 at isa0 port 0x3bc-0x3bf irq : polled
pcppi0 at isa0 port 0x61
midi0 at pcppi0: PC speaker
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
npx0 at isa0 port 0xf0-0xff: using exception 16
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
isapnp0: no ISA Plug 'n Play devices found
apm0 at mainbus0: Power Management spec V1.2
auich0: measured ac97 link rate at 48002 Hz, will use 48000 Hz
audio0 at auich0: full duplex, mmap, independent
Kernelized RAIDframe activated
IPsec: Initialized Security Association Processing.
fw0 at fwohci0: 00:06:1b:03:10:00:b0:49:0a:02:ff:ff:f0:01:00:00
wd0 at atabus0 drive 0: <IC25N040ATCS04-0>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 35124 MB, 71363 cyl, 16 head, 63 sec, 512 bytes/sect x 71934020 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd0(piixide0:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using DMA data transfers)
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)

>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: