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kernel: page fault @ uvm. (Hardware issue?)



I am administrating a server running OpenBSD 3.1-RELEASE, and now
I have run into trouble. I recently installed the system and while
doing that I also encountered a similar error but since it did not
appear again, I didn't bother to investigate it further (Yeah, very
clever...) :-|

Anyway, now, some weeks later, the server (which is co-located) just
stopped responding. When visiting the server the following
message was shown on the screen:

-------
uvm_fault(0xf3f1aef0, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at	_uvm_map+0x623: movl	0x20(%edx),%edx
-------

>From what I understand, uvm is the virtual memory manager,
and my first guess is that this would be a memory issue. Anyway,
in that case, it seems quite strange that ? have not run into?
troµble more frequently, if being able to start the server at all.
Another though is that we're dealing with some other kind of
hardware problem.

My last thought, which is what I _really_ hope, is that this
is a little tiny bug which is fixed in OpenBSD 3.2. I intend to
(as I've mentioned in earlier posts) upgrade.

My dmesg follows and I have the log files handy if necessary. I
would very much appreciate if someone could help me with this.

----DMESG----

OpenBSD 3.1 (GENERIC) #59: Sat Apr 13 15:28:52 MDT 2002
deraadt_(_at_)_i386_(_dot_)_openbsd_(_dot_)_org:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel Pentium III (Coppermine) ("GenuineIntel" 686-class) 852 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SYS,MTRR,PGE,MCA,CMOV,PAT,PSE36,SER,MMX,FXSR,SIMD
real mem = 267759616 (261484K)
avail mem = 242483200 (236800K)
using 3294 buffers containing 13492224 bytes (13176K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(00) BIOS, date 08/31/00, BIOS32 rev. 0 @ 0xfda74
apm0 at bios0: Power Management spec V1.2 (BIOS mgmt disabled)
apm0: AC on, battery charge unknown
pcibios0 at bios0: rev. 2.1 @ 0xf0000/0x10000
pcibios0: PCI IRQ Routing Table rev. 1.0 @ 0xf2bb0/144 (7 entries)
pcibios0: PCI Interrupt Router at 000:07:0 ("Intel 82371FB PCI-ISA" rev 0x00)
pcibios0: PCI bus #0 is the last bus
bios0: ROM list: 0xc0000/0x8000 0xc8000/0x1000 0xc9000/0x1000 0xdc000/0x4000!
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Intel 82443BX" rev 0x03
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
wd0 at pciide0 channel 0 drive 0: <IC35L120AVVA07-0>
wd0: 16-sector PIO, LBA, 117800MB, 16383 cyl, 16 head, 63 sec, 241254720 sectors
wd0(pciide0:0:0): 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 10
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 Mgmt" rev 0x02 at pci0 dev 7 function 3 not configured
fxp0 at pci0 dev 12 function 0 "Intel 82557" rev 0x08: irq 5, address 00:02:b3:35:f4:f2
inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 4
fxp1 at pci0 dev 13 function 0 "Intel 82557" rev 0x08: irq 5, address 00:02:b3:35:f4:f3
inphy1 at fxp1 phy 1: i82555 10/100 media interface, rev. 4
vga1 at pci0 dev 14 function 0 "SIS 6326 AGP Video" rev 0x0b
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
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
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
sysbeep0 at pcppi0
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
biomask 4440 netmask 4460 ttymask 4462
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

----END----