No buffer space available

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No buffer space available

Anton Maksimenkov
Hello.
With 3.7-stable in /var/log/messages occures something like

Nov 20 07:04:57 ... isakmpd[11743]: sendmsg (26, 0xcfbf82e0, 0): No buffer space available

And so (No buffer space available) on my console when I run ping,
traceroute, rdate.
Machine running isakmpd as primary task (about 10 tunnels), and some
additional services: apache, postfix, courier, mysql, squid. And pf
with altq used.

 #  ping -s 60000 openbsd.org
PING openbsd.org (199.185.137.3): 60000 data bytes
ping: sendto: No buffer space available
ping: wrote openbsd.org 60008 chars, ret=-1
ping: sendto: No buffer space available
ping: wrote openbsd.org 60008 chars, ret=-1
--- openbsd.org ping statistics ---
3 packets transmitted, 0 packets received, 100.0% packet loss

 # netstat -m
722 mbufs in use:
        626 mbufs allocated to data
        53 mbufs allocated to packet headers
        43 mbufs allocated to socket names and addresses
557/3170/6144 mbuf clusters in use (current/peak/max)
1912 Kbytes allocated to network (67% in use)
0 requests for memory denied
0 requests for memory delayed
150 calls to protocol drain routines

 # vmstat - m
...
Memory resource pool statistics
Name        Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
...
mbpl         256 173731889   0 173731268 5331  5281    50   301     1     8    8
mclpl       2048 51303315    0 51302770  1848  1420   428  1585     4  3072  153
...

 # netstat -na
(non-0 Recv-Q Send-Q only)
tcp        0    257  myaddrhere.27100       64.12.163.130.80       ESTABLISHED
tcp        0   7152  myaddrhere.80          221.235.58.95.2944     CLOSING
tcp        0     52  myaddrhere.22          212.57.174.2.13115     ESTABLISHED
tcp        0    553  myaddrhere.44500       81.19.70.2.80          FIN_WAIT_1


So I am confused here... I tried to search in google, then in misc@
(briefly), but find nothing useful. Can anyone explain me what is it?


Here is dmesg
-------------
OpenBSD 3.7-stable (GENERIC) #0: Thu Nov 10 19:39:31 YEKT 2005
    [hidden email]:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel(R) Xeon(TM) CPU 2.40GHz ("GenuineIntel" 686-class) 2.40 GHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,CNXT
-ID
real mem  = 1073238016 (1048084K)
avail mem = 972824576 (950024K)
using 4278 buffers containing 53764096 bytes (52504K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(00) BIOS, date 10/28/03, BIOS32 rev. 0 @ 0xfdb54
pcibios0 at bios0: rev 2.1 @ 0xf0000/0x10000
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf3630/336 (19 entries)
pcibios0: no compatible PCI ICU found: ICU vendor 0x8086 product 0x2480
pcibios0: Warning, unable to fix up PCI interrupt routing
pcibios0: PCI bus #4 is the last bus
bios0: ROM list: 0xc0000/0x8000 0xc8000/0x5200! 0xcd800/0x800 0xce000/0x800 0xce800/0x1800 0xd0000/0x1800 0xdd000/0x1000
cpu0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel E7501 MCH Host" rev 0x01
"Intel E7500 DRAM" rev 0x01 at pci0 dev 0 function 1 not configured
ppb0 at pci0 dev 3 function 0 "Intel E7500 MCH HI_C vppb 1" rev 0x01
pci1 at ppb0 bus 1
"Intel P64H2 IOxAPIC" rev 0x04 at pci1 dev 28 function 0 not configured
ppb1 at pci1 dev 29 function 0 "Intel 82870P2 P64H2 PCI-PCI" rev 0x04
pci2 at ppb1 bus 2
gdt0 at pci2 dev 8 function 0 "Intel GDT RAID" rev 0x00: irq 9 dpmem fa000000 2-bus 1 cache device
gdt0: ver 222, cache on, strategy 2, writeback on, blksz 32
gdt0: raw feat 1 cache feat 101
scsibus0 at gdt0: 35 targets
sd0 at scsibus0 targ 0 lun 0: <ICP, Host drive #00, > SCSI2 0/direct fixed
sd0: 69931MB, 8915 cyl, 255 head, 63 sec, 512 bytes/sec, 143219475 sec total
scsibus1 at gdt0: 16 targets
scsibus2 at gdt0: 16 targets
"Intel P64H2 IOxAPIC" rev 0x04 at pci1 dev 30 function 0 not configured
ppb2 at pci1 dev 31 function 0 "Intel 82870P2 P64H2 PCI-PCI" rev 0x04
pci3 at ppb2 bus 3
em0 at pci3 dev 7 function 0 "Intel PRO/1000MT DP (82546EB)" rev 0x01: irq 9, address: 00:0e:0c:09:7b:8a
em1 at pci3 dev 7 function 1 "Intel PRO/1000MT DP (82546EB)" rev 0x01: irq 9, address: 00:0e:0c:09:7b:8b
xl0 at pci3 dev 8 function 0 "3Com 3c905C 100Base-TX" rev 0x74: irq 9, address 00:04:76:f2:41:a1
bmtphy0 at xl0 phy 24: Broadcom 3C905C internal PHY, rev. 6
xl1 at pci3 dev 9 function 0 "3Com 3c905C 100Base-TX" rev 0x30: irq 9, address 00:01:03:e3:0a:35
ukphy0 at xl1 phy 24: Generic IEEE 802.3u media interface
ukphy0: OUI 0x00601d, model 0x0035, rev. 0
"Intel E7500 MCH HI_C vppb 2" rev 0x01 at pci0 dev 3 function 1 not configured
uhci0 at pci0 dev 29 function 0 "Intel 82801CA/CAM USB" rev 0x02: irq 9
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 82801CA/CAM USB" rev 0x02: irq 10
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
ppb3 at pci0 dev 30 function 0 "Intel 82801BA AGP" rev 0x42
pci4 at ppb3 bus 4
vga1 at pci4 dev 12 function 0 "ATI Rage XL" rev 0x27
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
ichpcib0 at pci0 dev 31 function 0 "Intel 82801CA LPC" rev 0x02
pciide0 at pci0 dev 31 function 1 "Intel 82801CA IDE" rev 0x02: DMA, channel 0 configured to compatibility, channel 1 configur
ed to compatibility
pciide0: channel 0 disabled (no drives)
atapiscsi0 at pciide0 channel 1 drive 0
scsibus3 at atapiscsi0: 2 targets
cd0 at scsibus3 targ 0 lun 0: <SAMSUNG, CD-ROM SN-124, N102> SCSI0 5/cdrom removable
cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2
"Intel 82801CA/CAM SMBus" rev 0x02 at pci0 dev 31 function 3 not configured
isa0 at ichpcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0 (mux 1 ignored for console): console keyboard, using wsdisplay0
pmsi0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pmsi0 mux 0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
sysbeep0 at pcppi0
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
biomask efe5 netmask efe5 ttymask ffe7
pctr: user-level cycle counter enabled
dkcsum: sd0 matched BIOS disk 80
root on sd0a
rootdev=0x400 rrootdev=0xd00 rawdev=0xd02

--
engineer