About every other time I boot my IBM ThinkPad 600E I get this panic
(hand typed, as I don't have a second machine here to be able to use a
serial console).

Fatal trap 12: page fault while in kernel mode
Fault virtual address   = 0x28
Fault code                              = supervisor read, page not present
instruction pointer             = 0x8:0xc0159bd3
stack pointer                   = 0x10:0xc5e3ef44
frame pointer                   = 0x10:0xc5e3ef48
code segment                    = base 0x0, limit 0xfffff, type 0x1b
                                                = DPL 0, pres 1, def21 1, gran 1
processor eflags                = interrupt enabled, resume, IOPL=0
current process                 = 16 (irq11: pccbb0+++)
kernel: type 12 trap, code=0
Stopped at      csa_readio+0x17:        movl 0x28(%eax),%edx
db> trace
csa_readio(c0d0c804,0,c0d0c700,c0d1f400,4) at csa_readio+0x17
csa_intr(c0d0c800) at csa_intr+0x14
ithread_loop(c0d1f400,c5e3efa0) at ithread_loop+0x23f
fork_exit(c018dd20,c0d1f400,c4e2efa8) at fork_exit+0x59
fork_trampoline() at fork_trampoline+0x8

When I see this, I just power it off, and boot again, and usually it
will boot.

Copyright (c) 1992-2001 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 5.0-CURRENT #0: Sat Apr 14 20:43:36 CEST 2001
Timecounter "i8254"  frequency 1193182 Hz
CPU: Pentium II/Pentium II Xeon/Celeron (363.96-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x66a  Stepping = 10
real memory  = 66912256 (65344K bytes)
config> q
avail memory = 61186048 (59752K bytes)
Preloaded elf kernel "kernel" at 0xc03dd000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc03dd09c.
Preloaded elf module "random.ko" at 0xc03dd0ec.
Pentium Pro MTRR support enabled
Using $PIR table, 5 entries at 0xc00f9e20
apm0: <APM BIOS> on motherboard
apm0: found APM BIOS v1.2, connected at v1.2
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443BX (440 BX) host to PCI bridge> at pcibus 0 on motherboard
pci0: <PCI bus> on pcib0
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <display, VGA> at 0.0 (no driver attached)
pccbb0: <TI1251 PCI-CardBus Bridge> mem 0x50102000-0x50102fff irq 11 at device 2.0 on 
cardbus0: <Cardbus bus (newcard)> on pccbb0
pccbb0: WARNING: cannot attach pccard bus.
pccbb1: <TI1251 PCI-CardBus Bridge> mem 0x50101000-0x50101fff irq 11 at device 2.1 on 
cardbus1: <Cardbus bus (newcard)> on pccbb1
pccbb1: WARNING: cannot attach pccard bus.
csa0: <Crystal Semiconductor CS4610/4611 Audio accelerator> mem 
0x50000000-0x500fffff,0x50100000-0x50100fff irq 11 at device 6.0 on pci0
pcm0: <CS461x PCM Audio> on csa0
pcm0: ac97 codec invalid or not present (id == 0)
device_probe_and_attach: pcm0 attach returned 6
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0xfcf0-0xfcff at device 7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0x8400-0x841f irq 11 at device 
7.2 on pci0
usb0: <Intel 82371AB/EB (PIIX4) USB controller> 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
pci0: <bridge, PCI-unknown> at 7.3 (no driver attached)
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model Generic PS/2 mouse, device ID 0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
pmtimer0 on isa0
sc0: <System console> on isa0
sc0: VGA <16 virtual consoles, flags=0x200>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
unknown: <PNP0303> can't assign resources
unknown: <IBM3780> can't assign resources
unknown: <PNP0700> can't assign resources
unknown: <PNP0501> can't assign resources
pcm1: <CS423x-PCI> at port 0x530-0x537,0x388-0x38b,0x220-0x233 irq 5 drq 1,0 on isa0
unknown: <IBM0071> can't assign resources
unknown: <PNP0e03> can't assign resources
unknown: <PNP0680> can't assign resources
unknown: <PNP0680> can't assign resources
BRIDGE 010131, have 2 interfaces
ad0: 6149MB <HITACHI_DK239A-65B> [13328/15/63] at ata0-master UDMA33
acd0: CDROM <TOSHIBA CD-ROM XM-1902B> at ata1-master PIO4
Mounting root from ufs:/dev/ad0s2a
cardbus0: Detaching card: no cards to detach!
pccbb0: pccbb_power: CARD_VCC_0V and CARD_VPP_0V [44]
pccbb1: card inserted: event=0x00000000, state=30000920
pccbb1: pccbb_power: CARD_VCC_0V and CARD_VPP_0V [44]
pccbb1: pccbb_power: CARD_VCC_3V and CARD_VPP_VCC [11]
TUPLE: LINKTARGET [3]: 43 49 53
Manufacturer ID: 01015752
TUPLE: CONFIG_CB [6]: 03 01 00 00 00 00
TUPLE: CFTABLE_ENTRY_CB [13]: 41 9a 01 b5 1e 01 b5 1e 02 30 ff ff 01
cardbus1: Opening BAR: type=IO, bar=10, len=0040
Product version: 5.0
Product name: 3Com Corporation | 3CCFE575CT | LAN Cardbus Card | 004 | 
Functions: Network Adaptor, Memory
CIS reading done
xl0: <3Com 3c575C Fast Etherlink XL> port 0x3000-0x307f mem 
0x44020000-0x4403ffff,0x44000080-0x440000ff,0x44000000-0x4400007f irq 11 at device 0.0 
on cardbus1
xl0: chip is in D6 power mode -- setting to D0
xl0: Ethernet address: 00:00:86:5b:75:a0
miibus0: <MII bus> on xl0
ukphy0: <Generic IEEE 802.3u media interface> on miibus0
ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
BRIDGE 010131, have 3 interfaces
-- index 3  type 6 phy 0 addrl 6 addr


Jesper Skriver, jesper(at)skriver(dot)dk  -  CCIE #5456
Work:    Network manager   @ AS3292 (Tele Danmark DataNetworks)
Private: FreeBSD committer @ AS2109 (A much smaller network ;-)

One Unix to rule them all, One Resolver to find them,
One IP to bring them all and in the zone to bind them.

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