Big and ugly bug in 5.1-release

From: Harald Schmalzbauer <h_at_schmalzbauer.de>
Date: Wed, 16 Jul 2003 02:50:20 +0200
Dear all,

I'm experimenting with 5.1-REL for some weeks and during that time I had
some mysterious hangs which I didn't take serious because I modified
/usr/src/sys/cam/scsi/scsi_da.c to support my CF-Card-Reader.
But now I saw exactly the same problem on my brand new (and cosidered by
hardware extremely different) fileserver.

The machine freezes for about one minute and then reboots itself withut any
error message.
It happens when I do a "/stand/sysinstall" or a "sysctl -a"

This is VERY ugly because when my fileserver dies my workstation also died
(home was nfs-mounted)

I'm no developer, but if someone tells me what to do I'll help solving that
BUG.

Here is some info about my two machines (which are running 5.1-release and
showed the same bug):

######## VIA FIleserver ############

FreeBSD 5.1-RELEASE #2: Fri Jul  4 14:02:06 CEST 2003
    root_at_tek.flintsbach.schmalzbauer.de:/usr/obj/usr/src/sys/EPIA
Preloaded elf kernel "/boot/kernel/kernel" at 0xc04c0000.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc04c01f4.
Timecounter "i8254"  frequency 1192944 Hz
Timecounter "TSC"  frequency 800032401 Hz
CPU: VIA C3 Samuel 2 (800.03-MHz 686-class CPU)
  Origin = "CentaurHauls"  Id = 0x67a  Stepping = 10
  Features=0x803035<FPU,DE,TSC,MSR,MTRR,PGE,MMX>
real memory  = 266272768 (253 MB)
avail memory = 253374464 (241 MB)
VESA: v2.0, 2048k memory, flags:0x0, mode table:0xc00c8ac8 (c0008ac8)
VESA: Copyright 1998 TRIDENT MICROSYSTEMS INC.
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <VIA601 AWRDACPI> on motherboard
pcibios: BIOS version 2.10
Using $PIR table, 5 entries at 0xc00fdc70
acpi0: power button is handled as a fixed feature programming model.
Timecounter "ACPI-safe"  frequency 3579545 Hz
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0
acpi_cpu0: <CPU> port 0x530-0x537 on acpi0
acpi_tz0: <thermal zone> port 0x530-0x537 on acpi0
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port
0x6000-0x607f,0x5000-0x500f,0x4080-0x40ff,0x4000-0x407f,0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <VIA Generic host to PCI bridge> mem 0xd0000000-0xd3ffffff at device
0.0 on pci0
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <display, VGA> at device 0.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 17.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <VIA 8231 UDMA100 controller> port 0xc000-0xc00f at device 17.1 on
pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <VIA 83C572 USB controller> port 0xc400-0xc41f irq 5 at device 17.2
on pci0
usb0: <VIA 83C572 USB controller> on uhci0
usb0: USB revision 1.0
uhub0: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <VIA 83C572 USB controller> port 0xc800-0xc81f irq 5 at device 17.3
on pci0
usb1: <VIA 83C572 USB controller> on uhci1
usb1: USB revision 1.0
uhub1: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
pci0: <bridge, PCI-unknown> at device 17.4 (no driver attached)
pcm0: <VIA VT82C686A> port 0xd400-0xd403,0xd000-0xd003,0xcc00-0xccff irq 12
at device 17.5 on pci0
pcm0: <VIA Technologies VIA1612A AC97 Codec>
vr0: <VIA VT6102 Rhine II 10/100BaseTX> port 0xd800-0xd8ff mem
0xd8000000-0xd80000ff irq 10 at device 18.0 on pci0
vr0: Ethernet address: 00:40:63:c2:9d:af
miibus0: <MII bus> on vr0
ukphy0: <Generic IEEE 802.3u media interface> on miibus0
ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
atapci1: <HighPoint HPT372 UDMA133 controller> port
0xec00-0xecff,0xe800-0xe803,0xe400-0xe407,0xe000-0xe003,0xdc00-0xdc07 irq 11
at device 20.0 on pci0
ata2: at 0xdc00 on atapci1
ata3: at 0xe400 on atapci1
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
orm0: <Option ROMs> at iomem 0xd0000-0xd9fff,0xcc000-0xcffff,0xc0000-0xcbfff
on isa0
pmtimer0 on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x64,0x60 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <12 virtual consoles, flags=0x300>
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounters tick every 1.000 msec
acpi_cpu: throttling enabled, 2 steps (100% to 50.0%), currently 100.0%
ad6: 28615MB <IC25N030ATCS04-0> [58140/16/63] at ata3-master UDMA100
acd0: MODE_SENSE_BIG trying to write on read buffer
acd0: MODE_SENSE_BIG - NO SENSE asc=0x00 ascq=0x00 error=0x04
acd0: CDROM <CD-224E> at ata1-slave PIO4
ar0: WARNING - mirror lost
ar0: 28615MB <ATA RAID1 array> [3647/255/63] status: DEGRADED subdisks:
 disk0 READY on ad6 at ata3-master
Opened disk ad6 -> 1
Opened disk ad6 -> 1
Opened disk ad6 -> 1
Opened disk ad6 -> 1
Mounting root from ufs:/dev/ar0s1a
WARNING: / was not properly dismounted
WARNING: /tmp was not properly dismounted
WARNING: /usr was not properly dismounted
WARNING: /var was not properly dismounted


######### Intel Workstation ##################

FreeBSD 5.1-RELEASE #2: Tue Jul  8 01:08:36 CEST 2003
    harry_at_cale.flintsbach.schmalzbauer.de:/usr/obj/usr/src/sys/CALE
Preloaded elf kernel "/boot/kernel/kernel" at 0xc04c7000.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc04c721c.
Timecounter "i8254"  frequency 1193267 Hz
Timecounter "TSC"  frequency 737075599 Hz
CPU: Intel Pentium III (737.08-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x683  Stepping = 3

Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,
PAT,PSE36,MMX,FXSR,SSE>
real memory  = 267300864 (254 MB)
avail memory = 254337024 (242 MB)
Pentium Pro MTRR support enabled
VESA: v3.0, 1024k memory, flags:0x1, mode table:0xc03f8922 (1000022)
VESA: Intel(R) 810, Intel(R) 815 Chipset Video BIOS
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <ASUS   CUSL2   > on motherboard
pcibios: BIOS version 2.10
Using $PIR table, 10 entries at 0xc00f1360
acpi0: power button is handled as a fixed feature programming model.
Timecounter "ACPI-safe"  frequency 3579545 Hz
acpi_timer0: <24-bit timer at 3.579545MHz> port 0xe408-0xe40b on acpi0
acpi_cpu0: <CPU> port 0x530-0x537 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: <Intel 82815 (i815 GMCH) SVGA controller> mem
0xf7000000-0xf707ffff,0xf8000000-0xfbffffff irq 11 at device 2.0 on pci0
pcib1: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci1: <ACPI PCI bus> on pcib1
fxp0: <Intel 82557/8/9 EtherExpress Pro/100(B) Ethernet> port 0xd800-0xd83f
mem 0xf6000000-0xf601ffff,0xf6800000-0xf6800fff irq 9 at device 10.0 on pci1
fxp0: Ethernet address 00:02:b3:89:e5:55
miibus0: <MII bus> on fxp0
inphy0: <i82555 10/100 media interface> on miibus0
inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
pcm0: <Creative CT5880-C> port 0xd400-0xd43f at device 13.0 on pci1
pcm0: <SigmaTel STAC9708/11 AC97 Codec>
pcib1: slot 13 INTA is routed to irq 10
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH2 UDMA100 controller> port 0xb800-0xb80f at device 31.1
on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <Intel 82801BA/BAM (ICH2) USB controller USB-A> port 0xb400-0xb41f
irq 7 at device 31.2 on pci0
usb0: <Intel 82801BA/BAM (ICH2) USB controller USB-A> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
ums0: Microsoft Microsoft IntelliMouse® Explorer, rev 1.10/1.14, addr 2,
iclass 3/1
ums0: 5 buttons and Z dir.
ichsmb0: <Intel 82801BA (ICH2) SMBus controller> port 0xe800-0xe80f irq 10
at device 31.3 on pci0
smbus0: <System Management Bus> on ichsmb0
smb0: <SMBus generic I/O> on smbus0
uhci1: <Intel 82801BA/BAM (ICH2) USB controller USB-B> port 0xb000-0xb01f
irq 9 at device 31.4 on pci0
usb1: <Intel 82801BA/BAM (ICH2) USB controller USB-B> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhub2: ALCOR Generic USB Hub, class 9/0, rev 1.10/1.00, addr 2
uhub2: 4 ports with 4 removable, self powered
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
sio1 port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
orm0: <Option ROMs> at iomem 0xd0000-0xd17ff,0xcc000-0xcffff,0xc0000-0xcbfff
on isa0
pmtimer0 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <12 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounters tick every 1.000 msec
acpi_cpu: throttling enabled, 8 steps (100% to 12.5%), currently 100.0%
ad0: 39083MB <Maxtor 4D040H2> [79408/16/63] at ata0-master UDMA100
acd0: CDROM <SONY CDU4811> at ata1-master PIO4
Mounting root from ufs:/dev/ad0s1a
Received on Tue Jul 15 2003 - 15:50:38 UTC

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