Hi


We get kernel panics when we reboot either one of our two OpenBSD 4.6 servers
running pf. It seems that the kernel panic always happens at the point where
the pf sync state import happens. Sometimes we can reboot the servers, one at
the time, a number of times in a row without any problems. We have tried to
understand why this occurs but to no avail, is there anyone who could advise
us what to do to try and resolve this?



The error message say:



"fatal page fault (6) in supervisor mode

trap type 6 code 0 eip d031baf5 cs 50 eflags 10297 cr2 2c4 cpl 40

panic: trap type 6, code=0, pc=d031baf5

.

.

.

--- trap (number 6) ---

pfsync_state_import(d899e83a,2,2d0,de1b4bc8) at pfsync_state_import+0x75"



We have two identical servers running OpenBSD 4.6 and pf, they are build on
the Supermicro X7SBT motherboard:

http://www.supermicro.com/products/motherboard/Xeon3000/X48/X7SBT.cfm

They have a totalt of six nic; two internal Intel PRO/1000MT (82573E) and
(82573L) and four Intel PRO/1000 QP (82571EB).



The pfsync interface uses em4 (that is the first of the two internal network
cards - Intel PRO/1000MT (82573E));



pfsync0: flags=41<UP,RUNNING> mtu 1500

        priority: 0

        pfsync: syncdev: em4 maxupd: 128 defer: off

        groups: carp pfsync



And we have a simple rule

pass quick on { em4 } proto pfsync



"ps -N /var/crash/bsd.0 -M /var/crash/bsd.0.core -O paddr" gives;

  PID  PADDR TT  STAT       TIME COMMAND

12176 d89f216c p0  Is+     0:00.00 (ksh)

28044 d8ae82c4 C0- R/0     0:01.00 (snortsam)

18169 d8b9e2c0 C0  Is+     0:00.00 (ksh)

 3045 d8ae8834 C1  Is+     0:10.00 (getty)

10861 d8ae8aec C2  Is+     0:09.00 (getty)

 3111 d8ae8c48 C3  Is+     0:09.00 (getty)

 5674 d8ae8da4 C5  Is+     0:09.00 (getty)



I have attached the dmesg output from one of the machines at the end of this
email,



Best regards



Anders

------------------------------------

Mainloop

Anders Pettersson

and...@mainloop.se<mailto:and...@mainloop.se>

Stora Nygatan 5, 2tr

111 27 Stockholm

Sweden

mobile: +46 (70) 634 5818

------------------------------------



OpenBSD 4.6-stable (GENERIC.MP) #0: Fri Nov  6 10:18:43 CET 2009

    r...@puffy46.intranet.mainloop.net:/usr/src/sys/arch/i386/compile/GENERIC
.MP<mailto:r...@puffy46.intranet.mainloop.net:/usr/src/sys/arch/i386/compile/
GENERIC.MP>

cpu0: Intel(R) Xeon(R) CPU X3220 @ 2.40GHz ("GenuineIntel" 686-class) 2.41
GHz

cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,VMX,EST,TM2,CX16,
xTPR

real mem  = 2145402880 (2046MB)

avail mem = 2065686528 (1969MB)

mainbus0 at root

bios0 at mainbus0: AT/286+ BIOS, date 12/19/08, BIOS32 rev. 0 @ 0xfdbc0,
SMBIOS rev. 2.5 @ 0x7fedf000 (34 entries)

bios0: vendor Phoenix Technologies LTD version "1.2a" date 12/19/2008

bios0: Supermicro X7SBT

acpi0 at bios0: rev 2

acpi0: tables DSDT FACP _MAR MCFG APIC BOOT SPCR ERST HEST BERT EINJ SLIC SSDT
SSDT SSDT SSDT SSDT SSDT SSDT SSDT SSDT

acpi0: wakeup devices PEG_(S5) PEX_(S5) LAN_(S5) USB4(S5) USB5(S5) USB7(S5)
ESB2(S5) EXP1(S5) EXP5(S5) EXP6(S5) USB1(S5) USB2(S5) USB3(S5) USB6(S5)
ESB1(S5) PCIB(S5) KBC0(S1) MSE0(S1) COM1(S5) COM2(S5) PWRB(S3)

acpitimer0 at acpi0: 3579545 Hz, 24 bits

acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat

cpu0 at mainbus0: apid 0 (boot processor)

cpu0: apic clock running at 266MHz

cpu1 at mainbus0: apid 1 (application processor)

cpu1: Intel(R) Xeon(R) CPU X3220 @ 2.40GHz ("GenuineIntel" 686-class) 2.41
GHz

cpu1:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,VMX,EST,TM2,CX16,
xTPR

cpu2 at mainbus0: apid 2 (application processor)

cpu2: Intel(R) Xeon(R) CPU X3220 @ 2.40GHz ("GenuineIntel" 686-class) 2.41
GHz

cpu2:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,VMX,EST,TM2,CX16,
xTPR

cpu3 at mainbus0: apid 3 (application processor)

cpu3: Intel(R) Xeon(R) CPU X3220 @ 2.40GHz ("GenuineIntel" 686-class) 2.41
GHz

cpu3:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,VMX,EST,TM2,CX16,
xTPR

ioapic0 at mainbus0: apid 4 pa 0xfec00000, version 20, 24 pins

acpiprt0 at acpi0: bus 0 (PCI0)

acpiprt1 at acpi0: bus 1 (PEG_)

acpiprt2 at acpi0: bus -1 (PEX_)

acpiprt3 at acpi0: bus 5 (EXP1)

acpiprt4 at acpi0: bus 13 (EXP5)

acpiprt5 at acpi0: bus 15 (EXP6)

acpiprt6 at acpi0: bus 17 (PCIB)

acpicpu0 at acpi0: C3, PSS

acpicpu1 at acpi0: C3, PSS

acpicpu2 at acpi0: C3, PSS

acpicpu3 at acpi0: C3, PSS

acpibtn0 at acpi0: PWRB

acpivideo0 at acpi0: IGD0

bios0: ROM list: 0xc0000/0x8000 0xc8000/0x1000 0xc9000/0x1000 0xca000/0x1000

ipmi at mainbus0 not configured

cpu0: Enhanced SpeedStep 2401 MHz: speeds: 2400, 1600 MHz

pci0 at mainbus0 bus 0: configuration mode 1 (bios)

pchb0 at pci0 dev 0 function 0 "Intel 82X38 Host" rev 0x01

ppb0 at pci0 dev 1 function 0 "Intel 82X38 PCIE" rev 0x01: apic 4 int 16 (irq
5)

pci1 at ppb0 bus 1

ppb1 at pci1 dev 0 function 0 "IDT 89HPES12N3A" rev 0x0e

pci2 at ppb1 bus 2

ppb2 at pci2 dev 2 function 0 "IDT 89HPES12N3A" rev 0x0e

pci3 at ppb2 bus 3

em0 at pci3 dev 0 function 0 "Intel PRO/1000 QP (82571EB)" rev 0x06: apic 4
int 19 (irq 11), address 00:15:17:a7:97:09

em1 at pci3 dev 0 function 1 "Intel PRO/1000 QP (82571EB)" rev 0x06: apic 4
int 18 (irq 11), address 00:15:17:a7:97:08

ppb3 at pci2 dev 4 function 0 "IDT 89HPES12N3A" rev 0x0e

pci4 at ppb3 bus 4

em2 at pci4 dev 0 function 0 "Intel PRO/1000 QP (82571EB)" rev 0x06: apic 4
int 17 (irq 10), address 00:15:17:a7:97:0b

em3 at pci4 dev 0 function 1 "Intel PRO/1000 QP (82571EB)" rev 0x06: apic 4
int 16 (irq 5), address 00:15:17:a7:97:0a

uhci0 at pci0 dev 26 function 0 "Intel 82801I USB" rev 0x02: apic 4 int 16
(irq 5)

uhci1 at pci0 dev 26 function 1 "Intel 82801I USB" rev 0x02: apic 4 int 17
(irq 10)

uhci2 at pci0 dev 26 function 2 "Intel 82801I USB" rev 0x02: apic 4 int 18
(irq 11)

ehci0 at pci0 dev 26 function 7 "Intel 82801I USB" rev 0x02: apic 4 int 18
(irq 11)

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 28 function 0 "Intel 82801I PCIE" rev 0x02: apic 4 int 16
(irq 5)

pci5 at ppb4 bus 5

ppb5 at pci0 dev 28 function 4 "Intel 82801I PCIE" rev 0x02: apic 4 int 16
(irq 5)

pci6 at ppb5 bus 13

em4 at pci6 dev 0 function 0 "Intel PRO/1000MT (82573E)" rev 0x03: apic 4 int
16 (irq 5), address 00:30:48:9d:03:d8

ppb6 at pci0 dev 28 function 5 "Intel 82801I PCIE" rev 0x02: apic 4 int 17
(irq 10)

pci7 at ppb6 bus 15

em5 at pci7 dev 0 function 0 "Intel PRO/1000MT (82573L)" rev 0x00: apic 4 int
17 (irq 10), address 00:30:48:9d:03:d9

uhci3 at pci0 dev 29 function 0 "Intel 82801I USB" rev 0x02: apic 4 int 23
(irq 7)

uhci4 at pci0 dev 29 function 1 "Intel 82801I USB" rev 0x02: apic 4 int 22
(irq 10)

uhci5 at pci0 dev 29 function 2 "Intel 82801I USB" rev 0x02: apic 4 int 18
(irq 11)

ehci1 at pci0 dev 29 function 7 "Intel 82801I USB" rev 0x02: apic 4 int 23
(irq 7)

usb1 at ehci1: USB revision 2.0

uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1

ppb7 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0x92

pci8 at ppb7 bus 17

vga1 at pci8 dev 1 function 0 vendor "XGI Technology", unknown product 0x0021
rev 0x00

wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)

wsdisplay0: screen 1-5 added (80x25, vt100 emulation)

ichpcib0 at pci0 dev 31 function 0 "Intel 82801IR LPC" rev 0x02: PM disabled

pciide0 at pci0 dev 31 function 2 "Intel 82801I SATA" rev 0x02: DMA, channel 0
configured to native-PCI, channel 1 configured to native-PCI

pciide0: using apic 4 int 17 (irq 10) for native-PCI interrupt

wd0 at pciide0 channel 0 drive 1: <ST3250310AS>

wd0: 16-sector PIO, LBA48, 238475MB, 488397168 sectors

wd0(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 5

ichiic0 at pci0 dev 31 function 3 "Intel 82801I SMBus" rev 0x02: apic 4 int 17
(irq 10)

iic0 at ichiic0

lm1 at iic0 addr 0x2d: W83627DHG

spdmem0 at iic0 addr 0x50: 1GB DDR3 SDRAM PC3-10600

spdmem1 at iic0 addr 0x52: 1GB DDR3 SDRAM PC3-10600

pciide1 at pci0 dev 31 function 5 "Intel 82801I SATA" rev 0x02: DMA, channel 0
wired to native-PCI, channel 1 wired to native-PCI

pciide1: using apic 4 int 18 (irq 11) for native-PCI interrupt

"Intel 82801I Thermal" rev 0x02 at pci0 dev 31 function 6 not configured

usb2 at uhci0: USB revision 1.0

uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1

usb3 at uhci1: USB revision 1.0

uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1

usb4 at uhci2: USB revision 1.0

uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1

usb5 at uhci3: USB revision 1.0

uhub5 at usb5 "Intel UHCI root hub" rev 1.00/1.00 addr 1

usb6 at uhci4: USB revision 1.0

uhub6 at usb6 "Intel UHCI root hub" rev 1.00/1.00 addr 1

usb7 at uhci5: USB revision 1.0

uhub7 at usb7 "Intel UHCI root hub" rev 1.00/1.00 addr 1

isa0 at ichpcib0

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

midi0 at pcppi0: <PC speaker>

spkr0 at pcppi0

lm0 at isa0 port 0x290/8: W83627DHG

lm1 detached

npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16

mtrr: Pentium Pro MTRR support

uhidev0 at uhub0 port 4 configuration 1 interface 0 "Peppercon AG Multidevice"
rev 2.00/0.01 addr 2

uhidev0: iclass 3/0

ums0 at uhidev0

ums0: X report 0x0022 not supported

uhidev1 at uhub0 port 4 configuration 1 interface 1 "Peppercon AG Multidevice"
rev 2.00/0.01 addr 2

uhidev1: iclass 3/1

ukbd0 at uhidev1: 8 modifier keys, 6 key codes

wskbd1 at ukbd0 mux 1

wskbd1: connecting to wsdisplay0

uhidev2 at uhub5 port 2 configuration 1 interface 0 "Avocent Dell 03R874" rev
1.10/1.00 addr 2

uhidev2: iclass 3/1

ukbd1 at uhidev2: 8 modifier keys, 6 key codes, country code 33

wskbd2 at ukbd1 mux 1

wskbd2: connecting to wsdisplay0

uhidev3 at uhub5 port 2 configuration 1 interface 1 "Avocent Dell 03R874" rev
1.10/1.00 addr 2

uhidev3: iclass 3/1, 3 report ids

ums1 at uhidev3 reportid 1: 5 buttons, Z dir

wsmouse0 at ums1 mux 0

uhid0 at uhidev3 reportid 2: input=2, output=0, feature=0

uhid1 at uhidev3 reportid 3: input=1, output=0, feature=0

softraid0 at root

root on wd0a swap on wd0b dump on wd0b

WARNING: / was not properly unmounted

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