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DMA error



	I bought a new motherboard: Chaintech 7VJD2 (VIA KT266). When I
tried to boot OpenBSD, I got the following:

wd0 (pciide0:0:0): timeout
	type: ata
	c_bcount: 1024
	c_skip: 0
pciide0:0:0: bus-master DMA error: missing interrupt, status=0x20
pciide0 channel0: reset failed for drive 0

	I disabled DMA in BIOS setup and this problem disappeared, but the
HDD works very slowly. My old M/B (Gigabyte 6LX4) works OK with DMA enabled.

	And another one: when I boot -a to set root partition, it prompts
`root device?' and hangs. On my old M/B it also worked OK.

	Here is my dmesg:

OpenBSD 2.9 (GENERIC) #0: Thu Oct  4 21:21:36 MSD 2001
    root_(_at_)_eldergod:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: AMD Duron ("AuthenticAMD" 686-class) 700 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SYS,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR
real mem  = 267956224 (261676K)
avail mem = 243535872 (237828K)
using 3296 buffers containing 13500416 bytes (13184K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(b7) BIOS, date 04/11/01, BIOS32 rev. 0 @ 0xfb1b0
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
pcibios0 at bios0: rev. 2.1 @ 0xf0000/0xdca4
pcibios0: PCI IRQ Routing Table rev. 1.0 @ 0xfdc10/144 (7 entries)
pcibios0: PCI Interrupt Router at 000:00:0
pcibios0: PCI Exclusive IRQs: 5 10 11 12
pcibios: no compatible PCI ICU found: ICU vendor 0x1106 product 0x3099
pcibios0: Warning, unable to fix up PCI interrupt routing
pcibios0: PCI bus #1 is the last bus
bios0: ROM list: 0xc0000/0x8000 0xc8000/0x4800
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 vendor "VIA", unknown product 0x3099 rev 0x00
ppb0 at pci0 dev 1 function 0 vendor "VIA", unknown product 0xb099 rev 0x00
pci1 at ppb0 bus 1
vga1 at pci1 dev 0 function 0 "Matrox MGA G400/G450 AGP" rev 0x03
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
ne3 at pci0 dev 10 function 0 "Realtek 8029" rev 0x00: irq 10
ne3: address 00:50:bf:69:4d:b4
ahc1 at pci0 dev 12 function 0 "Adaptec AHA-2940U" rev 0x00: irq 11
ahc1: Single Channel A, SCSI Id=7, 16/255 SCBs
scsibus0 at ahc1: 8 targets
ahc1: target 0 synchronous at 10.0MHz, offset = 0xf
sd0 at scsibus0 targ 0 lun 0: <DEC, RZ26L    (C) DEC, 440C> SCSI2 0/direct fixed
sd0: 1001MB, 3117 cyl, 8 head, 82 sec, 512 bytes/sec, 2050860 sec total
pcib0 at pci0 dev 17 function 0 vendor "VIA", unknown product 0x3074 rev 0x00
pciide0 at pci0 dev 17 function 1 "VIA VT82C571 IDE" rev 0x06: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility
wd0 at pciide0 channel 0 drive 0: <FUJITSU MPE3064AT>
wd0: 16-sector PIO, LBA, 6187MB, 13410 cyl, 15 head, 63 sec, 12672450 sectors
pciide0: channel 0 interrupting at irq 14
wd0(pciide0:0:0): using PIO mode 4, DMA mode 2
atapiscsi0 at pciide0 channel 1
scsibus1 at atapiscsi0: 2 targets
cd0 at scsibus1 targ 0 lun 0: <MATSHITA, CD-ROM CR-584, QS14> SCSI0 5/cdrom removable
pciide0: channel 1 interrupting at irq 15
cd0(pciide0:1:0): using PIO mode 3, DMA mode 1
uhci0 at pci0 dev 17 function 2 "VIA VT83C572 USB" rev 0x18: 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
uhci1 at pci0 dev 17 function 3 "VIA VT83C572 USB" rev 0x18: irq 11
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
uhci2 at pci0 dev 17 function 4 "VIA VT83C572 USB" rev 0x18: irq 11
usb2 at uhci2: USB revision 1.0
uhub2 at usb2
uhub2: vendor 0x0000 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
cmpci0 at pci0 dev 19 function 0 "C-Media Electronics Inc. CMI8738/C3DX Audio" rev 0x10: irq 11
audio0 at cmpci0
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 c840 netmask cc40 ttymask ccc2
pctr: user-level cycle counter 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

-- 
Alex Teldekov mailto:alext_(_at_)_parus_(_dot_)_Vistcom_(_dot_)_RU
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