kern/104406 on 8.0-RELEASE-p2 ?

Wed Mar 31 04:40:39 UTC 2010

Colleagues, 

I seem to have symptoms of kern/104406 on a 8.0-RELEASE-p2 system.
After an uptime of several days, many processes get stuck in the "ufs"
state.  The processes which had already opened some files before the
deadlock continue working all right, e.g. my old login sessions are
functional but I cannot start a new ssh session to the box.

Can you advise me a workaround? 

The box is being used as a BGP (quagga) router with two full views.
Hardware configuration is below:

Copyright (c) 1992-2009 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 8.0-RELEASE-p2 #0: Tue Jan  5 16:02:27 UTC 2010
    root at i386-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) III CPU family      1133MHz (1129.43-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x6b1  Stepping = 1
  Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
real memory  = 1073741824 (1024 MB)
avail memory = 1036312576 (988 MB)
ACPI APIC Table: <AMIINT >
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
FreeBSD/SMP: 2 package(s) x 1 core(s)
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
ioapic0 <Version 1.1> irqs 0-23 on motherboard
kbd1 at kbdmux0
acpi0: <AMIINT > on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
Timecounter "ACPI-safe" frequency 3579545 Hz quality 850
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <VIA 82C691 (Apollo Pro) host to PCI bridge> on hostb0
agp0: aperture size is 256M
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
vgapci0: <VGA-compatible display> port 0xa800-0xa8ff mem 0xde000000-0xdeffffff,0xdf8ff000-0xdf8fffff irq 17 at device 0.0 on pci1
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <VIA 82C686B UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xffa0-0xffaf at device 7.1 on pci0
ata0: <ATA channel 0> on atapci0
ata0: [ITHREAD]
ata1: <ATA channel 1> on atapci0
ata1: [ITHREAD]
uhci0: <VIA 83C572 USB controller> port 0xcc00-0xcc1f irq 11 at device 7.2 on pci0
uhci0: [ITHREAD]
uhci0: LegSup = 0x0030
usbus0: <VIA 83C572 USB controller> on uhci0
uhci1: <VIA 83C572 USB controller> port 0xd000-0xd01f irq 11 at device 7.3 on pci0
uhci1: [ITHREAD]
uhci1: LegSup = 0x0030
usbus1: <VIA 83C572 USB controller> on uhci1
pci0: <serial bus, SMBus> at device 7.4 (no driver attached)
fxp0: <Intel 82559ER Pro/100 Ethernet> port 0xd400-0xd43f mem 0xdfffb000-0xdfffbfff,0xdffc0000-0xdffdffff irq 18 at device 10.0 on pci0
miibus0: <MII bus> on fxp0
inphy0: <i82555 10/100 media interface> PHY 1 on miibus0
inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fxp0: Ethernet address: 00:02:55:90:64:b6
fxp0: [ITHREAD]
skc0: <Marvell Gigabit Ethernet> port 0xd800-0xd8ff mem 0xdfffc000-0xdfffffff irq 16 at device 12.0 on pci0
skc0: Marvell Yukon Gigabit Ethernet rev. (0x1)
sk0: <Marvell Semiconductor, Inc. Yukon> on skc0
sk0: Ethernet address: 00:80:48:27:18:be
miibus1: <MII bus> on sk0
e1000phy0: <Marvell 88E1011 Gigabit PHY> PHY 0 on miibus1
e1000phy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
skc0: [ITHREAD]
fxp1: <Intel 82559 Pro/100 Ethernet> port 0xdc00-0xdc3f mem 0xdffbf000-0xdffbffff,0xdfe00000-0xdfefffff irq 18 at device 14.0 on pci0
miibus2: <MII bus> on fxp1
inphy1: <i82555 10/100 media interface> PHY 1 on miibus2
inphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fxp1: Ethernet address: 00:20:ed:20:72:be
fxp1: [ITHREAD]
acpi_tz0: <Thermal Zone> on acpi0
atrtc0: <AT realtime clock> port 0x70-0x71 irq 8 on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
fdc0: <floppy drive controller> port 0x3f2-0x3f5,0x3f7 irq 6 drq 2 on acpi0
fdc0: [FILTER]
uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
uart0: [FILTER]
uart0: console (9600,n,8,1)
uart1: <16550 or compatible> port 0x2f8-0x2ff irq 3 on acpi0
uart1: [FILTER]
ppc0: <Parallel port> port 0x378-0x37f irq 7 on acpi0
ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
ppc0: [ITHREAD]
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
plip0: [ITHREAD]
lpt0: <Printer> on ppbus0
lpt0: [ITHREAD]
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xd2fff,0xd3000-0xd6fff pnpid ORM0000 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounters tick every 1.000 msec
usbus0: 12Mbps Full Speed USB v1.0
usbus1: 12Mbps Full Speed USB v1.0
ad0: 8063MB <FUJITSU MPC3084AT 6018> at ata0-master UDMA33
ugen0.1: <VIA> at usbus0
uhub0: <VIA UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
ugen1.1: <VIA> at usbus1
uhub1: <VIA UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus1
SMP: AP CPU #1 Launched!
uhub0: 2 ports with 2 removable, self powered
uhub1: 2 ports with 2 removable, self powered
Trying to mount root from ufs:/dev/ad0s2a
WARNING: / was not properly dismounted
sk0: link state changed to UP

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
sip:sudakov at sibptus.tomsk.ru