Re: 2.9-stable system freeze

[Andreas Östling <andreaso@it.su.se>]

On Sat, 1 Sep 2001 alex@unixdot.com wrote:

> When I was working remotely on my system (a mysql
> commandline session), it suddenly froze, more or
> less.
...
> Pinging the host still worked. The box is a NAT
> gateway, that too worked.
> At the console, Alt-F* still worked, but logging
> in didn't.
> No strange messages printed on the console either.
...

In case this could be of any help...

I experienced something similar a while ago on a 2.9 (+errata) machine.
About once a day it locked up just like you describe - still pingable
but not usable. No log messages. Only power cycle helped.
It happened with the GENERIC kernel as well as a minimized one with
all non-critical drivers disabled, often during heavy disk activity.

I was running 2.9 on machines with identical hardware without any
problems. Oh, identical except for the hard disks.
On wd0 I had an old Seagate. wd1 was an IBM disk with all my
OpenBSD partitions (lockups occurred both with wd0 mounted or unmounted,
and both with softupdates enabled or disabled).
Very well, the Seagate went out the window and so did the problem.
I have since then been running with many other disks as well without
any problem.

Since I assumed (and still assume(?)) it was a 100% hardware failure
problem in my case I don't have a dmesg from that time.
Current dmesg is below though. Same hardware as then except for the
hdd devices.

The machine had not been running anything else than OpenBSD 2.9 with that
particular hardware configuration so I can't tell if this was introduced
in 2.9 or even if it was OpenBSD-specific at all.

In other words, if it happens to you again it might be a good idea to
have a look at the hard disks...

/Andreas


OpenBSD 2.9 (GENERIC) #653: Sat Apr 28 13:57:59 MDT 2001
    deraadt@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel Pentium II ("GenuineIntel" 686-class, 512KB L2 cache) 401 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SYS,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR
real mem  = 402227200 (392800K)
avail mem = 367767552 (359148K)
using 4935 buffers containing 20213760 bytes (19740K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(a0) BIOS, date 02/03/99, BIOS32 rev. 0 @ 0xf0520
apm0 at bios0: Power Management spec V1.2 (BIOS mgmt disabled)
apm0: AC on, battery charge unknown
pcibios0 at bios0: rev. 2.1 @ 0xf0000/0xd92
pcibios0: PCI IRQ Routing Table rev. 1.0 @ 0xf0d10/128 (6 entries)
pcibios0: PCI Interrupt Router at 000:04:0 ("Intel 82371FB PCI-ISA" rev 0x00)
pcibios0: PCI bus #1 is the last bus
bios0: ROM list: 0xc0000/0x8000 0xc8000/0x800
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 "Matrox MGA G200 AGP" rev 0x01
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
pcib0 at pci0 dev 4 function 0 "Intel 82371AB PIIX4 ISA" rev 0x02
pciide0 at pci0 dev 4 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: <IBM-DJNA-371800>
wd0: 16-sector PIO, LBA, 17206MB, 16383 cyl, 16 head, 63 sec, 35239680 sectors
wd1 at pciide0 channel 0 drive 1: <IBM-DPTA-372050>
wd1: 16-sector PIO, LBA, 19574MB, 16383 cyl, 16 head, 63 sec, 40088160 sectors
pciide0: channel 0 interrupting at irq 14
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
wd1(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 2
wd2 at pciide0 channel 1 drive 0: <IBM-DJNA-351520>
wd2: 16-sector PIO, LBA, 14664MB, 16383 cyl, 16 head, 63 sec, 30033360 sectors
wd3 at pciide0 channel 1 drive 1: <ST39140A>
wd3: 16-sector PIO, LBA, 8693MB, 17662 cyl, 16 head, 63 sec, 17803440 sectors
pciide0: channel 1 interrupting at irq 15
wd2(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2
wd3(pciide0:1:1): using PIO mode 4, Ultra-DMA mode 2
uhci0 at pci0 dev 4 function 2 "Intel 82371AB USB" rev 0x01: irq 7
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 0x02 at pci0 dev 4 function 3 not configured
fxp0 at pci0 dev 10 function 0 "Intel 82557" rev 0x02: irq 9, address 00:a0:c9:81:bc:fa
inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 0
ahc1 at pci0 dev 11 function 0 "Adaptec AHA-2940U" rev 0x01: irq 7
ahc1: Wide Channel A, SCSI Id=7, 16/255 SCBs
scsibus0 at ahc1: 16 targets
ahc1: target 5 using 8bit transfers
ahc1: target 5 synchronous at 10.0MHz, offset = 0xf
st0 at scsibus0 targ 5 lun 0: <HP, C1537A, L610> SCSI2 1/sequential removable
st0: drive empty
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
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
isapnp0 at isa0 port 0x279: read port 0x203
isapnp0: No current device for tag, card 1
sb1 at isapnp0 "Creative SB AWE64 PnP, CTL0045, , Audio" port 0x220/16,0x330/2,0x388/4 irq 5 drq 1,5: dsp v4.16
midi1 at sb1: <SB MPU-401 UART>
audio0 at sb1
opl0 at sb1: model OPL3
midi2 at opl0: <SB Yamaha OPL3>
joy0 at isapnp0 "Creative SB AWE64 PnP, CTL7002, PNPB02F, Game" port 0x200/8
"Creative SB AWE64 PnP, CTL0022, , WaveTable" at isapnp0 port 0x620/4 not configured
biomask c0c0 netmask c2c0 ttymask d2c2
pctr: 686-class user-level performance counters enabled
mtrr: Pentium Pro MTRR support
dkcsum: wd0 matched BIOS disk 80
wd1: no disk label
dkcsum: wd1 matched BIOS disk 81
dkcsum: wd2 matched BIOS disk 82
dkcsum: wd3 matched BIOS disk 83
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302