The disk is 4 month old. After install of openbsd 4.2 it works. But now there are a lot of errors, while reading blocks.
Here is my dmesg 3 (wd2 bn 415199; cn 411 tn 14 sn 29), retrying wd2: soft error (corrected) wd2(pciide1:0:0): timeout type: ata c_bcount: 16384 c_skip: 0 pciide1:0:0: bus-master DMA error: missing interrupt, status=0x21 wd2: transfer error, downgrading to Ultra-DMA mode 4 wd2(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 4 wd2a: device timeout reading fsbn 1563968 of 1563968-1563999 (wd2 bn 1564031; cn 1551 tn 9 sn 56), retrying wd2: soft error (corrected) wd2(pciide1:0:0): timeout type: ata c_bcount: 16384 c_skip: 0 pciide1:0:0: bus-master DMA error: missing interrupt, status=0x21 wd2: transfer error, downgrading to Ultra-DMA mode 3 wd2(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 3 wd2a: device timeout reading fsbn 2674752 of 2674752-2674783 (wd2 bn 2674815; cn 2653 tn 9 sn 24), retrying wd2: soft error (corrected) wd2(pciide1:0:0): timeout type: ata c_bcount: 16384 c_skip: 0 pciide1:0:0: bus-master DMA error: missing interrupt, status=0x21 wd2: transfer error, downgrading to Ultra-DMA mode 2 wd2(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 2 wd2a: device timeout reading fsbn 4861216 of 4861216-4861247 (wd2 bn 4861279; cn 4822 tn 11 sn 10), retrying wd2: soft error (corrected) wd2(pciide1:0:0): timeout type: ata c_bcount: 65536 c_skip: 0 pciide1:0:0: bus-master DMA error: missing interrupt, status=0x21 wd2: transfer error, downgrading to Ultra-DMA mode 1 wd2(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 1 wd2a: device timeout reading fsbn 6221984 of 6221984-6222111 (wd2 bn 6222047; cn 6172 tn 10 sn 41), retrying wd2: soft error (corrected) wd2(pciide1:0:0): timeout type: ata c_bcount: 16384 c_skip: 0 pciide1:0:0: bus-master DMA error: missing interrupt, status=0x21 wd2a: device timeout reading fsbn 12794368 of 12794368-12794399 (wd2 bn 12794431; cn 12692 tn 14 sn 13), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error reading fsbn 19491104 of 19491104-19491231 (wd2 bn 19491167; cn 19336 tn 7 sn 38), retrying wd2: soft error (corrected) wd2(pciide1:0:0): timeout type: ata c_bcount: 2048 c_skip: 0 pciide1:0:0: bus-master DMA error: missing interrupt, status=0x21 wd2a: device timeout reading fsbn 8310856 of 8310856-8310859 (wd2 bn 8310919; cn 8244 tn 15 sn 22), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 15210720 of 15210720-15210847 (wd2 bn 47692512; cn 47314 tn 0 sn 0), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 31744864 of 31744864-31744991 (wd2 bn 64226656; cn 63716 tn 14 sn 46), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 48271712 of 48271712-48271839 (wd2 bn 80753504; cn 80112 tn 9 sn 41), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 99191776 of 99191776-99191903 (wd2 bn 131673568; cn 130628 tn 8 sn 40), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 131591904 of 131591904-131592031 (wd2 bn 164073696; cn 162771 tn 8 sn 24), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 159032096 of 159032096-159032223 (wd2 bn 191513888; cn 189993 tn 14 sn 62), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 174900768 of 174900768-174900895 (wd2 bn 207382560; cn 205736 tn 10 sn 42), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 184489952 of 184489952-184490079 (wd2 bn 216971744; cn 215249 tn 11 sn 59), retrying wd2: soft error (corrected) wd2(pciide1:0:0): timeout type: ata c_bcount: 65536 c_skip: 0 pciide1:0:0: bus-master DMA error: missing interrupt, status=0x21 wd2d: device timeout reading fsbn 373940128 of 373940128-373940255 (wd2 bn 406421920; cn 403196 tn 5 sn 37), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 381214624 of 381214624-381214751 (wd2 bn 413696416; cn 410413 tn 1 sn 49), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 384848608 of 384848608-384848735 (wd2 bn 417330400; cn 414018 tn 4 sn 4), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 398073184 of 398073184-398073311 (wd2 bn 430554976; cn 427137 tn 13 sn 61), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 399727648 of 399727648-399727775 (wd2 bn 432209440; cn 428779 tn 3 sn 19), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 400057568 of 400057568-400057695 (wd2 bn 432539360; cn 429106 tn 8 sn 8), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 413941568 of 413941568-413941599 (wd2 bn 446423360; cn 442880 tn 5 sn 5), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 427831392 of 427831392-427831519 (wd2 bn 460313184; cn 456659 tn 14 sn 30), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 433782624 of 433782624-433782751 (wd2 bn 466264416; cn 462563 tn 14 sn 30), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 436427232 of 436427232-436427359 (wd2 bn 468909024; cn 465187 tn 8 sn 24), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 442378848 of 442378848-442378975 (wd2 bn 474860640; cn 471091 tn 14 sn 30), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 444033184 of 444033184-444033311 (wd2 bn 476514976; cn 472733 tn 1 sn 49), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 447007584 of 447007584-447007711 (wd2 bn 479489376; cn 475683 tn 14 sn 30), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 456592928 of 456592928-456593055 (wd2 bn 489074720; cn 485193 tn 2 sn 50), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 212260800 of 212260800-212260831 (wd2 bn 244742592; cn 242800 tn 3 sn 3), retrying wd2: soft error (corrected) wd2d: aborted command, interface CRC error reading fsbn 316408064 of 316408064-316408095 (wd2 bn 348889856; cn 346120 tn 14 sn 14), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error writing fsbn 16 of 16-19 (wd2 bn 79; cn 0 tn 1 sn 16), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error writing fsbn 8709888 of 8709888-8709919 (wd2 bn 8709951; cn 8640 tn 13 sn 12), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error writing fsbn 24969120 of 24969120-24969147 (wd2 bn 24969183; cn 24771 tn 0 sn 15), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error writing fsbn 24953952 of 24953952-24953983 (wd2 bn 24954015; cn 24755 tn 15 sn 30), retrying wd2: soft error (corrected) wd2: transfer error, downgrading to Ultra-DMA mode 0 wd2(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 0 wd2a: aborted command, interface CRC error reading fsbn 56256 of 56256-56383 (wd2 bn 56319; cn 55 tn 13 sn 60), retrying wd2: soft error (corrected) wd2: transfer error, downgrading to PIO mode 4 wd2(pciide1:0:0): using PIO mode 4 wd2a: aborted command, interface CRC error writing fsbn 24879840 of 24879840-24879871 (wd2 bn 24879903; cn 24682 tn 7 sn 6), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error writing fsbn 24969056 of 24969056-24969079 (wd2 bn 24969119; cn 24770 tn 15 sn 14), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error writing fsbn 24879856 of 24879840-24879871 (wd2 bn 24879919; cn 24682 tn 7 sn 22), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error writing fsbn 24879744 of 24879744-24879775 (wd2 bn 24879807; cn 24682 tn 5 sn 36), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error writing fsbn 8293232 of 8293216-8293247 (wd2 bn 8293295; cn 8227 tn 7 sn 38), retrying wd2: soft error (corrected) syncing disks... OpenBSD 4.2 (GENERIC.MP) #1378: Tue Aug 28 10:48:58 MDT 2007 [EMAIL PROTECTED]:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 2146758656 (2047MB) avail mem = 2073456640 (1977MB) mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xfb630 (30 entries) bios0: vendor American Megatrends Inc. version "P1.40" date 08/23/2006 acpi0 at mainbus0: rev 0 acpi0: tables DSDT FACP APIC OEMB HPET acpitimer at acpi0 not configured acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD Athlon(tm) 64 X2 Dual Core Processor 4600+, 2412.04 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,CX16,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache cpu0: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu0: DTLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu0: apic clock running at 200MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: AMD Athlon(tm) 64 X2 Dual Core Processor 4600+, 2411.74 MHz cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,CX16,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu1: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache cpu1: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu1: DTLB 32 4KB entries fully associative, 8 4MB entries fully associative ioapic0 at mainbus0 apid 2 pa 0xfec00000, version 11, 24 pins ioapic0: misconfigured as apic 0, remapped to apid 2 acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 2 (P0P1) acpicpu at acpi0 not configured acpicpu at acpi0 not configured acpibtn at acpi0 not configured cpu0: PowerNow! K8 2411 MHz: speeds: 2400 2200 2000 1800 1000 MHz pci0 at mainbus0 bus 0: configuration mode 1 pchb0 at pci0 dev 0 function 0 "NVIDIA nForce3 250 PCI Host" rev 0xa1 pcib0 at pci0 dev 1 function 0 "NVIDIA nForce3 250 ISA" rev 0xa2 nviic0 at pci0 dev 1 function 1 "NVIDIA nForce3 250 SMBus" rev 0xa1 iic0 at nviic0 iic1 at nviic0 ohci0 at pci0 dev 2 function 0 "NVIDIA nForce3 250 USB" rev 0xa1: apic 2 int 9 (irq 9), version 1.0, legacy support ohci1 at pci0 dev 2 function 1 "NVIDIA nForce3 250 USB" rev 0xa1: apic 2 int 9 (irq 9), version 1.0, legacy support ehci0 at pci0 dev 2 function 2 "NVIDIA nForce3 250 USB2" rev 0xa2: apic 2 int 9 (irq 9) usb0 at ehci0: USB revision 2.0 uhub0 at usb0: NVIDIA EHCI root hub, rev 2.00/1.00, addr 1 nfe0 at pci0 dev 5 function 0 "NVIDIA nForce3 LAN" rev 0xa2: apic 2 int 9 (irq 9), address 00:13:8f:cb:d4:c5 rlphy0 at nfe0 phy 1: RTL8201L 10/100 PHY, rev. 1 pciide0 at pci0 dev 8 function 0 "NVIDIA nForce3 250 IDE" rev 0xa2: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility wd0 at pciide0 channel 0 drive 0: <SAMSUNG SV0411N> wd0: 16-sector PIO, LBA48, 38204MB, 78242976 sectors wd1 at pciide0 channel 0 drive 1: <IC35L060AVVA07-0> wd1: 16-sector PIO, LBA, 58644MB, 120103200 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 6 wd1(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 5 atapiscsi0 at pciide0 channel 1 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <HL-DT-ST, DVD-ROM GDR8163B, 0L15> SCSI0 5/cdrom removable atapiscsi1 at pciide0 channel 1 drive 1 scsibus1 at atapiscsi1: 2 targets cd1 at scsibus1 targ 0 lun 0: <HL-DT-ST, DVDRAM GSA-4163B, A102> SCSI0 5/cdrom removable cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2 cd1(pciide0:1:1): using PIO mode 4, Ultra-DMA mode 2 pciide1 at pci0 dev 10 function 0 "NVIDIA nForce3 250 SATA" rev 0xa2: DMA pciide1: using apic 2 int 10 (irq 10) for native-PCI interrupt wd2 at pciide1 channel 0 drive 0: <WDC WD2500YS-01SHB1> wd2: 16-sector PIO, LBA48, 239372MB, 490234752 sectors wd2(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 5 ppb0 at pci0 dev 11 function 0 "NVIDIA nForce3 250 AGP" rev 0xa2 pci1 at ppb0 bus 1 vga1 at pci1 dev 0 function 0 "NVIDIA GeForce 6600 GT AGP" rev 0xa2 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) ppb1 at pci0 dev 14 function 0 "NVIDIA nForce3 250 PCI-PCI" rev 0xa2 pci2 at ppb1 bus 2 xl0 at pci2 dev 7 function 0 "3Com 3c905B 10/100Mbps-Combo" rev 0x00: apic 2 int 11 (irq 11), address 00:04:76:14:ef:00 exphy0 at xl0 phy 24: 3Com internal media interface pchb1 at pci0 dev 24 function 0 "AMD AMD64 HyperTransport" rev 0x00 pchb2 at pci0 dev 24 function 1 "AMD AMD64 Address Map" rev 0x00 pchb3 at pci0 dev 24 function 2 "AMD AMD64 DRAM Cfg" rev 0x00 pchb4 at pci0 dev 24 function 3 "AMD AMD64 Misc Cfg" rev 0x00 isa0 at pcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo 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 mpu0 at isa0 port 0x330/2: generic MPU-401 compatible midi0 at mpu0: <MPU-401 MIDI UART> pcppi0 at isa0 port 0x61 midi1 at pcppi0: <PC speaker> spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 lm0 at isa0 port 0x290/8: W83627EHF fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 usb1 at ohci0: USB revision 1.0 uhub1 at usb1: NVIDIA OHCI root hub, rev 1.00/1.00, addr 1 usb2 at ohci1: USB revision 1.0 uhub2 at usb2: NVIDIA OHCI root hub, rev 1.00/1.00, addr 1 uaudio0 at uhub2 port 4 configuration 1 interface 0: ABC PnP Audio Device, rev 1.10/0.10, addr 2 uaudio0: audio rev 1.00, 17 mixer controls audio0 at uaudio0 dkcsum: wd0 matches BIOS drive 0x82 dkcsum: wd1 matches BIOS drive 0x81 dkcsum: wd2 matches BIOS drive 0x80 root on wd2a swap on wd2b dump on wd2b WARNING: NVRAM century is 32 but RTC year is 2007 wd2a: aborted command, interface CRC error writing fsbn 24879840 of 24879840-24879871 (wd2 bn 24879903; cn 24682 tn 7 sn 6), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error reading fsbn 1335240 of 1335240-1335271 (wd2 bn 1335303; cn 1324 tn 11 sn 18), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error writing fsbn 829408 of 829408-829439 (wd2 bn 829471; cn 822 tn 14 sn 13), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error reading fsbn 2220064 of 2220064-2220191 (wd2 bn 2220127; cn 2202 tn 8 sn 7), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error reading fsbn 2816384 of 2816384-2816415 (wd2 bn 2816447; cn 2794 tn 1 sn 32), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error reading fsbn 24899136 of 24899136-24899167 (wd2 bn 24899199; cn 24701 tn 9 sn 24), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error reading fsbn 2844224 of 2844224-2844255 (wd2 bn 2844287; cn 2821 tn 11 sn 26), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error reading fsbn 2788544 of 2788544-2788671 (wd2 bn 2788607; cn 2766 tn 7 sn 38), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error reading fsbn 3153600 of 3153600-3153727 (wd2 bn 3153663; cn 3128 tn 10 sn 9), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error reading fsbn 3152416 of 3152416-3152447 (wd2 bn 3152479; cn 3127 tn 7 sn 22), retrying wd2: soft error (corrected) wd2: transfer error, downgrading to Ultra-DMA mode 4 wd2(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 4 wd2a: aborted command, interface CRC error reading fsbn 2785568 of 2785568-2785695 (wd2 bn 2785631; cn 2763 tn 8 sn 23), retrying wd2: soft error (corrected) wd2: transfer error, downgrading to Ultra-DMA mode 3 wd2(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 3 wd2a: aborted command, interface CRC error reading fsbn 2733888 of 2733888-2733919 (wd2 bn 2733951; cn 2712 tn 4 sn 3), retrying wd2: soft error (corrected) wd2a: aborted command, interface CRC error reading fsbn 4394848 of 4394848-4394879 (wd2 bn 4394911; cn 4360 tn 0 sn 31), retrying wd2: soft error (corrected)