ahc problems with recent kernel

[nick <nick_(_at_)_be_(_dot_)_wanadoo_(_dot_)_com>]

Hello,
After trying to upgrade a box to -current the today I ran into the following error with the new ahc code. The new kernel boots fine until the point where it should normally start checking the disks' checksums (this is a guess, the screen scrolls to fast but it's about there).
This is where I get the following error:

ahc1: PCI error Interrupt at seqaddr = 0xa
ahc1: Signal System Error Detected
ahc1: Recieved a Master Abort
ahc1: Received a Target Abort
ahc1: Signaled a Target Abort
ahc1: Data Parity Error has been reported via PERR#
ahc1: PCI error Interrupt at seqaddr = 0xb
ahc1: Signal System Error Detected
ahc1: Recieved a Master Abort
ahc1: Recieved a Target Abort
ahc1: Signaled a Target Abort
ahc1: Data Parity Error has been reported via PERR#
ahc1: PCI error Interrupt at seqaddr = 0x198
ahc1: Signal System Error detected
ahc1: Received a Master Abort
ahc1: Received a Target Abort
ahc1: Signaled a Target Abort
ahc1: Data Parity Error has been reported via PERR#
ahc1: PCI error Interrupt at seqaddr = 0x1a0
ahc1: Signal System Error detected
ahc1: Received a Master Abort
ahc1: Recieved a Target Abort
ahc1: Signaled a Target Abort
ahc1: Data Parity Error has been reported via PERR#

After this the console is dead and I can't scroll back up to see where exactly this happened. The code is just cvs'ed and fails with the same error message with a custom kernel as well with GENERIC. The system config is shown in the dmesg below from an older kernel with which it ran happily. Of note are 4 SCSI HDDs & the Adaptec 2940U2W. I can't play with the system any more today because it isn't mine.


OpenBSD 3.0-current (ACID) #0: Wed Jan 23 09:20:04 CET 2002
    root_(_at_)_acid:/sys/arch/i386/compile/ACID
cpu0: Intel Pentium III (Coppermine) ("GenuineIntel" 686-class, 128KB L2 cache) 808 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SYS,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SIMD
real mem  = 266883072 (260628K)
avail mem = 244301824 (238576K)
using 3283 buffers containing 13447168 bytes (13132K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(83) BIOS, date 08/03/01, BIOS32 rev. 0 @ 0xf0bf0
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
pcibios0 at bios0: rev. 2.1 @ 0xf0000/0x1422
pcibios0: PCI IRQ Routing Table rev. 1.0 @ 0xf1360/192 (10 entries)
pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82371FB PCI-ISA" rev 0x00)
pcibios0: PCI bus #1 is the last bus
bios0: ROM list: 0xc0000/0xc000 0xcc000/0x5800 0xd4000/0x2000
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel 82815 Hub" rev 0x02
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 0x02
pci1 at ppb0 bus 1
ahc0 at pci1 dev 9 function 0 "Adaptec AHA-2940U2 U2" rev 0x00: irq 9
ahc0: Wide Channel A, SCSI Id=7, 16/255 SCBs
scsibus0 at ahc0: 16 targets
ahc0: target 0 using 16bit transfers
ahc0: target 0 synchronous at 40.0MHz, offset = 0x1f
sd0 at scsibus0 targ 0 lun 0: <WDIGTL, WDE9150 ULTRA2, 1.20> SCSI2 0/direct fixed
sd0: 8727MB, 13614 cyl, 4 head, 328 sec, 512 bytes/sec, 17873040 sec total
ahc0: target 4 using 16bit transfers
ahc0: target 4 synchronous at 40.0MHz, offset = 0x1f
sd1 at scsibus0 targ 4 lun 0: <IBM, DNES-309170W, SA30> SCSI3 0/direct fixed
sd1: 8748MB, 11474 cyl, 5 head, 312 sec, 512 bytes/sec, 17916240 sec total
ahc0: target 6 using 16bit transfers
ahc0: target 6 synchronous at 40.0MHz, offset = 0x3f
sd2 at scsibus0 targ 6 lun 0: <QUANTUM, ATLAS_V__9_WLS, 0230> SCSI3 0/direct fixed
sd2: 8755MB, 20907 cyl, 2 head, 428 sec, 512 bytes/sec, 17930694 sec total
ahc0: target 8 using 16bit transfers
ahc0: target 8 synchronous at 40.0MHz, offset = 0x1f
sd3 at scsibus0 targ 8 lun 0: <WDIGTL, WDE18300 ULTRA2, 1.30> SCSI2 0/direct fixed
sd3: 17461MB, 9942 cyl, 12 head, 299 sec, 512 bytes/sec, 35761710 sec total
pciide0 at pci1 dev 10 function 0 "Promise PDC20262" rev 0x01: DMA, channel 0 configured to native-PCI, channel 1 configured to native-PCI
pciide0: using irq 9 for native-PCI interrupt
wd0 at pciide0 channel 0 drive 0: <WDC AC418000D>
wd0: 16-sector PIO, LBA, 17206MB, 16383 cyl, 16 head, 63 sec, 35239680 sectors
wd1 at pciide0 channel 0 drive 1: <ST328040A>
wd1: 16-sector PIO, LBA, 27199MB, 16383 cyl, 16 head, 63 sec, 55704096 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 4
wd1(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 4
wd2 at pciide0 channel 1 drive 0: <WDC AC420400D>
wd2: 16-sector PIO, LBA, 19470MB, 16383 cyl, 16 head, 63 sec, 39876480 sectors
wd3 at pciide0 channel 1 drive 1: <ST328040A>
wd3: 16-sector PIO, LBA, 27199MB, 16383 cyl, 16 head, 63 sec, 55704096 sectors
wd2(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 4
wd3(pciide0:1:1): using PIO mode 4, Ultra-DMA mode 4
ne0 at pci1 dev 12 function 0 "Realtek 8029" rev 0x00: irq 9
ne0: address 52:54:05:c0:4c:2f
rl0 at pci1 dev 13 function 0 "Realtek 8139" rev 0x10: irq 9 address 00:48:54:60:5f:69
rlphy0 at rl0 phy 0: RTL internal phy
pcib0 at pci0 dev 31 function 0 "Intel 82801BA LPC" rev 0x02
pciide1 at pci0 dev 31 function 1 "Intel 82801BA IDE" rev 0x02: DMA, channel 0 wired to compatibility, channel 1 wired to compatibility
uhci0 at pci0 dev 31 function 2 "Intel 82801BA USB" rev 0x02: 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 82801BA SMBus" rev 0x02 at pci0 dev 31 function 3 not configured
uhci1 at pci0 dev 31 function 4 "Intel 82801BA USB2" rev 0x02: irq 9
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
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
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 240 netmask 240 ttymask 1242
pctr: 686-class user-level performance counters enabled
mtrr: Pentium Pro MTRR support
dkcsum: sd0 matched BIOS disk 80
dkcsum: sd1 matched BIOS disk 81
dkcsum: sd2 matched BIOS disk 82
dkcsum: sd3 matched BIOS disk 83
dkcsum: wd0 matched BIOS disk 84
dkcsum: wd1 matched BIOS disk 85
dkcsum: wd2 matched BIOS disk 86
dkcsum: wd3 matched BIOS disk 87
root on sd0a
rootdev=0x400 rrootdev=0xd00 rawdev=0xd02
uhub2 at uhub1 port 2
uhub2: ALCOR Generic USB Hub, class 9/0, rev 1.10/1.00, addr 2
uhub2: 4 ports with 4 removable, self powered


(sorry if there is bad linewrap in this email)

// nick