3ware escalade fdisk/disklabel fine on 3.0 but NOT 3.1

[Simon Lok <simonlok@mac.com>]

Hi,

I was just wondering if anybody else out there might
have encountered a weird little problem.  I use 3ware
escalade controllers quite a bit with openbsd ... and
I ran into this strange issue.  It seems that whenever
I run fdisk or disklabel on a 3ware RAID10 volume
on a 3.1 the kernel panics.  I went nuts trying to figure
out the problem... finally I decided to see what happens
if I installed 3.0 because I could have swore the exact
same hardware configuration used to work, and indeed
it did.  I refomatted back to 3.1, ran disklabel, panic
again.  3.0 again, works fine.  Then with 3.0, you can do
a upgrade via recompiling source to 3.1 and things continue
to work fine (just don't run fdisk or disklabel)

Weird stuff.  Just wondering
if anybody is running into this same problem.  I am very
suspect because I am thinking that I am probably doing
something very stupid because it wouldn't make sense for
something like this to stop working from one version
to the next.

--SL

OpenBSD 3.1-stable (GENERIC) #0: Fri May 24 12:30:39 EDT 2002
     root@obsd31test:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel Pentium III (Coppermine) ("GenuineIntel" 686-class) 1.01 GHz
cpu0: 
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SYS,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,
FXSR,SIMD
real mem  = 535408640 (522860K)
avail mem = 490618880 (479120K)
using 5689 buffers containing 26873856 bytes (26244K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(00) BIOS, date 11/13/01, BIOS32 rev. 0 @ 
0xfdb80
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
pcibios0 at bios0: rev. 2.1 @ 0xf0000/0x10000
pcibios0: PCI IRQ Routing Table rev. 1.0 @ 0xf37c0/224 (12 entries)
pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82801AA LPC" rev 0x00)
pcibios0: PCI bus #1 is the last bus
bios0: ROM list: 0xc0000/0x8000 0xc8000/0x1000
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel 82815 Hub" rev 0x02: rng active, 
8Kb/sec
vga1 at pci0 dev 2 function 0 "Intel 82815 Graphics" rev 0x02
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
ppb0 at pci0 dev 30 function 0 "Intel 82801BA AGP" rev 0x11
pci1 at ppb0 bus 1
twe0 at pci1 dev 0 function 0 "3ware Escalade IDE RAID" rev 0x12: irq 11
twe0: Escalade V5.7
scsibus0 at twe0: 16 targets
sd0 at scsibus0 targ 0 lun 0: <3WARE, Host drive #00, > SCSI2 0/direct 
fixed
sd0: 95395MB, 12161 cyl, 255 head, 63 sec, 512 bytes/sec, 195369520 sec 
total
fxp0 at pci1 dev 4 function 0 "Intel 82557" rev 0x08: irq 11, address 
00:30:48:41:0d:5c
inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 4
fxp1 at pci1 dev 8 function 0 "Intel 82562" rev 0x03: irq 11, address 
00:30:48:41:0d:5d
inphy1 at fxp1 phy 1: i82562EM 10/100 media interface, rev. 0
pcib0 at pci0 dev 31 function 0 "Intel 82801BA LPC" rev 0x11
pciide0 at pci0 dev 31 function 1 "Intel 82801BA IDE" rev 0x11: DMA, 
channel 0 wired to compatibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 1: <QUANTUM FIREBALL1080A>
wd0: 8-sector PIO, LBA, 1039MB, 2112 cyl, 16 head, 63 sec, 2128896 
sectors
wd0(pciide0:0:1): using PIO mode 4, DMA mode 2
atapiscsi0 at pciide0 channel 1 drive 0
scsibus1 at atapiscsi0: 2 targets
cd0 at scsibus1 targ 0 lun 0: <MATSHITA, CD-ROM CR-177, 7T03> SCSI0 
5/cdrom removable
cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2
uhci0 at pci0 dev 31 function 2 "Intel 82801BA USB" rev 0x11: irq 11
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 82801BA SMBus" rev 0x11 at pci0 dev 31 function 3 not configured
uhci1 at pci0 dev 31 function 4 "Intel 82801BA USB2" rev 0x11: irq 10
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: vendor 0x0000 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
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
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
biomask cc40 netmask cc40 ttymask ccc2
pctr: 686-class user-level performance counters enabled
mtrr: Pentium Pro MTRR support
dkcsum: sd0 matched BIOS disk 81
dkcsum: wd0 matched BIOS disk 80
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302