crash on mkdir

[Dominic <dmake@freebse.net>]

i experienced a crash of the kernel in just issuing a simple "mkdir".

--- snip ---
$ pwd
/home/dmake/misc/.alias
$ mkdir 12-03/blah
uvm_fault(0xe8ee32b0, 0xd8f2e000, 0, 1) -> 1
kernel: page fault trap, code = 0
Stopped at	_skpc+0xe	repe scasb	(%esi)
ddb>
--- snip ---

btw, "boot (dump|crash|sync|halt)" will not work - it panics again with
a different kind of panic depending on which option i chose for "boot".

i wasn't able to reproduce this on another 2.9-stable system or even 3.0.
also i wasn't albe to reproduce this on any other directory on the system.

--- snip ---
OpenBSD 2.9-stable (GENERIC) #1: Fri Nov 23 23:51:19 CET 2001
    dmake@pcb:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel Pentium III (Coppermine) ("GenuineIntel" 686-class) 869 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SYS,MTRR,PGE,MCA,CMOV,PAT,PSE36,SER,MMX,FXSR,SIMD
real mem  = 133738496 (130604K)
avail mem = 119078912 (116288K)
using 1658 buffers containing 6791168 bytes (6632K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(60) BIOS, date 12/18/00, BIOS32 rev. 0 @ 0xfd792
apm0 at bios0: Power Management spec V1.2
apm0: battery life expectancy 100%
apm0: AC on, battery charge high, charging
pcibios0 at bios0: rev. 2.1 @ 0xfd790/0x870
pcibios0: PCI IRQ Routing Table rev. 1.0 @ 0xfdf30/176 (9 entries)
pcibios0: PCI Interrupt Router at 000:07:0 ("Intel 82371FB PCI-ISA" rev 0x00)
pcibios0: PCI bus #3 is the last bus
bios0: ROM list: 0xc0000/0xc000
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel 82443BX PCI-AGP" rev 0x03
ppb0 at pci0 dev 1 function 0 "Intel 82443BX AGP" rev 0x03
pci1 at ppb0 bus 1
vga1 at pci1 dev 0 function 0 "S3 Savage/MX-MV" rev 0x11
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
vendor "ESS", unknown product 0x1988 (class multimedia, subclass audio, rev 0x12) at pci0 dev 6 function 0 not configured
vendor "ESS", unknown product 0x1989 (class communications, subclass miscellaneous, rev 0x12) at pci0 dev 6 function 1 not configured
pcib0 at pci0 dev 7 function 0 "Intel 82371AB PIIX4 ISA" rev 0x02
pciide0 at pci0 dev 7 function 1 "Intel 82371AB IDE" rev 0x01: DMA, channel 0 wired to compatibility, channel 1 wired to compatibility
atapiscsi0 at pciide0 channel 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 1 lun 0: <TOSHIBA, DVD-ROM SD-C2502, 1711> SCSI0 5/cdrom removable
wd0 at pciide0 channel 0 drive 0: <IBM-DJSA-220>
wd0: 16-sector PIO, LBA, 19077MB, 16383 cyl, 16 head, 63 sec, 39070080 sectors
pciide0: channel 0 interrupting at irq 14
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
cd0(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 2
pciide0: channel 1 ignored (disabled)
uhci0 at pci0 dev 7 function 2 "Intel 82371AB USB" rev 0x01: irq 9
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: vendor 0x0000 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
"Intel 82371AB Power Management" rev 0x03 at pci0 dev 7 function 3 not configured
rl0 at pci0 dev 8 function 0 "Realtek 8139" rev 0x10: irq 9 address 00:e0:18:0e:d0:a2
rlphy0 at rl0 phy 0: RTL internal phy
cbb0 at pci0 dev 10 function 0 "Ricoh 5C476 PCI-CardBus" rev 0x80: irq 9
cbb1 at pci0 dev 10 function 1 "Ricoh 5C476 PCI-CardBus" rev 0x80: irq 9
isa0 at pcib0
isadma0 at isa0
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
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
sysbeep0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
cardslot0 at cbb0 slot 0 flags 0
cardbus0 at cardslot0: bus 2 device 0 cacheline 0x0, lattimer 0x20
pcmcia0 at cardslot0
cardslot1 at cbb1 slot 1 flags 0
cardbus1 at cardslot1: bus 3 device 0 cacheline 0x0, lattimer 0x20
pcmcia1 at cardslot1
biomask 4240 netmask 4240 ttymask 52c2
pctr: 686-class user-level performance counters enabled
mtrr: Pentium Pro MTRR support
dkcsum: wd0 matched BIOS disk 80
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302
WARNING: / was not properly unmounted
--- snip ---

btw, there is a bug which seems to be fixed in 3.0, but still isn't in
2.9-stable (it was reported by ? raan a month ago or so) -
"panic: timeout_add: to_ticks < 0".

dmake.