what does mean that problems?
it started after 2 days of uptime with heavy load.

rebooting give no fix, turning off "IDE SMART" in BIOS "fixed" it.

does it mean drive is broken (brand new) or other problem?

wd0 at pciide0 channel 0 drive 0: <FUJITSU MPG3204AH EF>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 19546 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 40031712
sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)



Jul  8 08:53:28 tata /netbsd: pciide0:0:0: lost interrupt
Jul  8 08:53:28 tata /netbsd:   type: ata tc_bcount: 8192 tc_skip: 0
Jul  8 08:53:28 tata /netbsd: pciide0:0:0: bus-master DMA error: missing
interrupt, status=3D0x21
Jul  8 08:53:28 tata /netbsd: pciide0:0:0: device timeout, c_bcount=3D8192,
c_skip0
Jul  8 08:53:28 tata /netbsd: wd0a: device timeout reading fsbn 21047616
of 21047616-21047631 (wd0 bn
22620880; cn 22441 tn 5 sn 37), retrying
Jul  8 08:53:28 tata /netbsd: wd0: soft error (corrected)
Jul  8 08:56:54 tata /netbsd: pciide0:0:0: lost interrupt
Jul  8 08:56:54 tata /netbsd:   type: ata tc_bcount: 65536 tc_skip: 0
Jul  8 08:56:54 tata /netbsd: pciide0:0:0: bus-master DMA error: missing
interrupt, status=3D0x20
Jul  8 08:56:54 tata /netbsd: pciide0:0:0: device timeout, c_bcount=3D65536=
,
c_skip0
Jul  8 08:56:54 tata /netbsd: wd0a: device timeout writing fsbn 22332816
of 22332816-22332943 (wd0 bn
23906080; cn 23716 tn 5 sn 37), retrying
Jul  8 08:56:54 tata /netbsd: wd0: soft error (corrected)
Jul  8 08:59:27 tata /netbsd: pciide0:0:0: lost interrupt
Jul  8 08:59:27 tata /netbsd:   type: ata tc_bcount: 8192 tc_skip: 0
Jul  8 08:59:27 tata /netbsd: pciide0:0:0: bus-master DMA error: missing
interrupt, status=3D0x21
Jul  8 08:59:27 tata /netbsd: pciide0:0:0: device timeout, c_bcount=3D8192,
c_skip0
Jul  8 08:59:27 tata /netbsd: wd0a: device timeout reading fsbn 20960688
of 20960688-20960703 (wd0 bn
22533952; cn 22355 tn 1 sn 49), retrying
Jul  8 08:59:27 tata /netbsd: wd0: soft error (corrected)
Jul  8 09:00:00 tata /USR/SBIN/CRON[20275]: (root) CMD
(/usr/bin/newsyslog)
Jul  8 09:00:00 tata /USR/SBIN/CRON[20276]: (root) CMD
(/usr/libexec/atrun)
Jul  8 09:01:12 tata /netbsd: pciide0:0:0: lost interrupt
Jul  8 09:01:12 tata /netbsd:   type: ata tc_bcount: 8192 tc_skip: 0
Jul  8 09:01:12 tata /netbsd: pciide0:0:0: bus-master DMA error: missing
interrupt, status=3D0x21
Jul  8 09:01:12 tata /netbsd: pciide0:0:0: device timeout, c_bcount=3D8192,
c_skip0
Jul  8 09:01:12 tata /netbsd: wd0: transfer error, downgrading to
Ultra-DMA mode 2
Jul  8 09:01:12 tata /netbsd: wd0(pciide0:0:0): using PIO mode 4,
Ultra-DMA mode 2 (Ultra/33) (using D
MA data transfers)
Jul  8 09:01:12 tata /netbsd: wd0a: device timeout writing fsbn 22029840
of 22029840-22029855 (wd0 bn
23603104; cn 23415 tn 12 sn 28), retrying
Jul  8 09:01:12 tata /netbsd: wd0: soft error (corrected)
Jul  8 09:02:31 tata /netbsd: pciide0:0:0: lost interrupt
Jul  8 09:02:32 tata /netbsd:   type: ata tc_bcount: 3072 tc_skip: 0
Jul  8 09:02:32 tata /netbsd: pciide0:0:0: bus-master DMA error: missing
interrupt, status=3D0x21
Jul  8 09:02:32 tata /netbsd: pciide0:0:0: device timeout, c_bcount=3D3072,
c_skip0
Jul  8 09:02:32 tata /netbsd: wd0: transfer error, downgrading to
Ultra-DMA mode 1
Jul  8 09:02:32 tata /netbsd: wd0(pciide0:0:0): using PIO mode 4,
Ultra-DMA mode 1 (using DMA data tra
nsfers)
Jul  8 09:02:32 tata /netbsd: wd0a: device timeout reading fsbn 20957226
of 20957226-20957231 (wd0 bn
22530490; cn 22351 tn 10 sn 52), retrying
Jul  8 09:02:32 tata /netbsd: wd0: soft error (corrected)
Jul  8 09:04:00 tata /netbsd: pciide0:0:0: lost interrupt
Jul  8 09:04:02 tata /netbsd:   type: ata tc_bcount: 8192 tc_skip: 0
Jul  8 09:04:02 tata /netbsd: pciide0:0:0: bus-master DMA error: missing
interrupt, status=3D0x20
Jul  8 09:04:02 tata /netbsd: pciide0:0:0: device timeout, c_bcount=3D8192,
c_skip0
Jul  8 09:04:02 tata /netbsd: wd0: transfer error, downgrading to DMA mode
2
Jul  8 09:04:02 tata /netbsd: wd0(pciide0:0:0): using PIO mode 4, DMA mode
2 (using DMA data transfers
)
Jul  8 09:04:02 tata /netbsd: pciide0 channel 0: reset failed for drive 0
Jul  8 09:04:02 tata /netbsd: wd0a: device timeout writing fsbn 22325360
of 22325360-22325375 (wd0 bn
23898624; cn 23708 tn 15 sn 15), retrying
Jul  8 09:04:02 tata /netbsd: wd0: soft error (corrected)
Jul  8 09:05:10 tata /netbsd: pciide0:0:0: lost interrupt
Jul  8 09:05:11 tata /netbsd:   type: ata tc_bcount: 8192 tc_skip: 0
Jul  8 09:05:11 tata /netbsd: pciide0:0:0: bus-master DMA error: missing
interrupt, status=3D0x21
Jul  8 09:05:11 tata /netbsd: pciide0:0:0: device timeout, c_bcount=3D8192,
c_skip0
Jul  8 09:05:11 tata /netbsd: wd0: transfer error, downgrading to PIO mode
4
Jul  8 09:05:11 tata /netbsd: wd0(pciide0:0:0): using PIO mode 4
Jul  8 09:05:11 tata /netbsd: pciide0 channel 0: reset failed for drive 0
Jul  8 09:05:11 tata /netbsd: wd0a: device timeout reading fsbn 10274096
of 10274096-10274111 (wd0 bn
11847360; cn 11753 tn 5 sn 21), retrying
Jul  8 09:05:11 tata /netbsd: wd0: soft error (corrected)


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Charakterystycznymi cechami rozwoju oprogramowania jest wyk=B3adniczy
wzrost wymaga=F1 sprz=EAtowych, kwadratowy wzrost ilo=B6ci b=B3=EAd=F3w, li=
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wzrost ilo=B6ci bajer=F3w przy mniej ni=BF liniowym wzro=B6cie funkcjonalno=
=B6ci