Starting with the 18 Aug. amd64 snapshot (and continuing with the 8
Sept. as well), my nsd server immediately pegs 3 of my CPU's 4 cores
within seconds after starting. It won't even respond to nsd-control
commands. Running on the 3 Aug. snapshot and for many versions prior to
that, CPU usage was barely perceptible. So, it appears to be something
new to recent snapshots. But frustratingly, I see no recent changes in
nsd's source in cvs.
This instance of nsd is running in a slave configuration, and hosting 42
zones. The master host also runs nsd with a recent amd64 snapshot, and
it runs normally. There have been no changes in the nsd.conf for months
prior to the latest snapshots. There are no errors in my nsd log file
apart from some 'NOT IMPL errors' at start-up. I don't think these are
relevant, since my understanding is that they are caused by nsd's
initial IFXR attempts failing, but are then followed by successful AFXR
transfers. At least that's what I gathered from a post in the nsd-users
archives. [1]
My nsd.conf and dmesg follow.
Any ideas on how I can start to track down whether this is due to my
configuration?
Many thanks.
[1] <http://open.nlnetlabs.nl/pipermail/nsd-users/2013-January/001588.html>
###################################################################################
# $OpenBSD: nsd.conf,v 1.6 2013/11/26 12:54:42 sthen Exp $
server:
hide-version: yes
database: "/var/nsd/db/nsd.db"
username: _nsd
zonesdir: "/var/nsd/zones"
logfile: "/var/log/nsd.log"
pidfile: "/var/nsd/run/nsd.pid"
difffile: "/var/nsd/run/ixfr.db"
xfrdfile: "/var/nsd/run/xfrd.state"
statistics: 3600
remote-control:
control-enable: yes
key:
name: "ns.datagenic.com."
algorithm: hmac-md5
secret: "..."
zone:
name: "datagenic.com"
zonefile: "db.datagenic.com"
allow-notify: 163.228.162.199 ns.datagenic.com.
request-xfr: 163.228.162.199 ns.datagenic.com.
# 41 more identically configured zones omitted
###################################################################################
OpenBSD 5.6-current (GENERIC.MP) #366: Mon Sep 8 17:13:38 MDT 2014
t...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
RTC BIOS diagnostic error 80<clock_battery>
real mem = 1038864384 (990MB)
avail mem = 1002532864 (956MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.5 @ 0xe4410 (25 entries)
bios0: vendor Intel Corp. version "MOPNV10J.86A.0154.2009.1117.1624"
date 11/17/2009
bios0: Intel Corporation D510MO
acpi0 at bios0: rev 2
acpi0: sleep states S0 S1 S3 S4 S5
acpi0: tables DSDT FACP APIC MCFG HPET SSDT
acpi0: wakeup devices SLPB(S4) PS2M(S4) PS2K(S4) UAR1(S4) UAR2(S4)
P32_(S4) ILAN(S4) PEX0(S4) PEX1(S4) PEX2(S4) PEX3(S4) UHC1(S3) UHC2(S3)
UHC3(S3) UHC4(S3) EHCI(S3) [...]
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Atom(TM) CPU D510 @ 1.66GHz, 1666.98 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE,NXE,LONG,LAHF,PERF
cpu0: 512KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 7 var ranges, 88 fixed ranges
cpu0: apic clock running at 166MHz
cpu0: mwait min=64, max=64, C-substates=0.1.0.0.0, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Atom(TM) CPU D510 @ 1.66GHz, 1666.69 MHz
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE,NXE,LONG,LAHF,PERF
cpu1: 512KB 64b/line 8-way L2 cache
cpu1: smt 1, core 0, package 0
cpu2 at mainbus0: apid 2 (application processor)
cpu2: Intel(R) Atom(TM) CPU D510 @ 1.66GHz, 1718.97 MHz
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE,NXE,LONG,LAHF,PERF
cpu2: 512KB 64b/line 8-way L2 cache
cpu2: smt 0, core 1, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: Intel(R) Atom(TM) CPU D510 @ 1.66GHz, 1666.70 MHz
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE,NXE,LONG,LAHF,PERF
cpu3: 512KB 64b/line 8-way L2 cache
cpu3: smt 1, core 1, package 0
ioapic0 at mainbus0: apid 8 pa 0xfec00000, version 20, 24 pins
ioapic0: misconfigured as apic 0, remapped to apid 8
acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 5 (P32_)
acpiprt1 at acpi0: bus 0 (PCI0)
acpiprt2 at acpi0: bus 1 (PEX0)
acpiprt3 at acpi0: bus 2 (PEX1)
acpiprt4 at acpi0: bus 3 (PEX2)
acpiprt5 at acpi0: bus 4 (PEX3)
acpicpu0 at acpi0: C1, PSS
acpicpu1 at acpi0: C1, PSS
acpicpu2 at acpi0: C1, PSS
acpicpu3 at acpi0: C1, PSS
acpibtn0 at acpi0: SLPB
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Pineview DMI" rev 0x02
vga1 at pci0 dev 2 function 0 "Intel Pineview Video" rev 0x02
intagp0 at vga1
agp0 at intagp0: aperture at 0xd0000000, size 0x10000000
inteldrm0 at vga1
drm0 at inteldrm0
inteldrm0: 1024x768
wsdisplay0 at vga1 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
azalia0 at pci0 dev 27 function 0 "Intel 82801GB HD Audio" rev 0x01: msi
azalia0: codecs: Realtek ALC662
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 82801GB PCIE" rev 0x01: msi
pci1 at ppb0 bus 1
re0 at pci1 dev 0 function 0 "Realtek 8168" rev 0x03: RTL8168D/8111D
(0x2800), msi, address 00:27:0e:08:a9:f5
rgephy0 at re0 phy 7: RTL8169S/8110S PHY, rev. 2
ppb1 at pci0 dev 28 function 1 "Intel 82801GB PCIE" rev 0x01: msi
pci2 at ppb1 bus 2
ppb2 at pci0 dev 28 function 2 "Intel 82801GB PCIE" rev 0x01: msi
pci3 at ppb2 bus 3
ppb3 at pci0 dev 28 function 3 "Intel 82801GB PCIE" rev 0x01: msi
pci4 at ppb3 bus 4
uhci0 at pci0 dev 29 function 0 "Intel 82801GB USB" rev 0x01: apic 8 int 23
uhci1 at pci0 dev 29 function 1 "Intel 82801GB USB" rev 0x01: apic 8 int 19
uhci2 at pci0 dev 29 function 2 "Intel 82801GB USB" rev 0x01: apic 8 int 18
uhci3 at pci0 dev 29 function 3 "Intel 82801GB USB" rev 0x01: apic 8 int 16
ehci0 at pci0 dev 29 function 7 "Intel 82801GB USB" rev 0x01: apic 8 int 23
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
ppb4 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0xe1
pci5 at ppb4 bus 5
pcib0 at pci0 dev 31 function 0 "Intel NM10 LPC" rev 0x01
pciide0 at pci0 dev 31 function 2 "Intel 82801GB SATA" rev 0x01: DMA,
channel 0 configured to native-PCI, channel 1 configured to native-PCI
pciide0: using apic 8 int 19 for native-PCI interrupt
wd0 at pciide0 channel 1 drive 0: <ST3250310AS>
wd0: 16-sector PIO, LBA48, 238474MB, 488395055 sectors
wd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 6
ichiic0 at pci0 dev 31 function 3 "Intel 82801GB SMBus" rev 0x01: apic 8
int 19
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 1GB DDR2 SDRAM non-parity PC2-5300CL5
usb1 at uhci0: USB revision 1.0
uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb2 at uhci1: USB revision 1.0
uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb3 at uhci2: USB revision 1.0
uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb4 at uhci3: USB revision 1.0
uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1
isa0 at pcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
wbsio0 at isa0 port 0x4e/2: W83627THF rev 0x84
lm1 at wbsio0 port 0x290/8: W83627THF
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
scsibus2 at softraid0: 256 targets
root on wd0a (c4f8032150c83b5d.a) swap on wd0b dump on wd0b
