Yo,

I upgraded my laptop from a -current dated roughly March 2 to one
dated about March 15 and started seeing this in the logs:
--------
Mar 18 11:30:28 wanda /netbsd: pciide0:0:0: lost interrupt
Mar 18 11:30:28 wanda /netbsd:  type: ata
Mar 18 11:30:28 wanda /netbsd:  c_bcount: 8192
Mar 18 11:30:28 wanda /netbsd:  c_skip: 0
Mar 18 11:30:28 wanda /netbsd: pciide0:0:0: Bus-Master DMA error: missing i=
nterrupt, status=3D0x1
Mar 18 11:30:28 wanda /netbsd: wd0e: DMA error writing fsbn 514288 of 51428=
8-514303 (wd0 bn 5390488; cn 5704 tn 3 sn 19), retrying
Mar 18 11:30:28 wanda /netbsd: wd0: soft error (corrected)
Mar 18 11:32:03 wanda /netbsd: pciide0:0:0: lost interrupt
Mar 18 11:32:03 wanda /netbsd:  type: ata
Mar 18 11:32:03 wanda /netbsd:  c_bcount: 2048
Mar 18 11:32:03 wanda /netbsd:  c_skip: 0
Mar 18 11:32:03 wanda /netbsd: pciide0:0:0: Bus-Master DMA error: missing i=
nterrupt, status=3D0x1
Mar 18 11:32:03 wanda /netbsd: wd0a: DMA error writing fsbn 60944 of 60944-=
60959 (wd0 bn 4249184; cn 4496 tn 7 sn 23), retrying
Mar 18 11:32:03 wanda /netbsd: wd0: soft error (corrected)
--------
I didn't notice it immediately, because it doesn't seem to happen much
when the disk is busy...as far as I can tell it happens mostly when
the machine is idling an the update sweeps by every 30s. 

We also did not find any obvious changes in this area in the last two
weeks so I have no real clue as to what has changed that causes this.

Any hint would be welcome.

Regards,

Johan Ihr=E9n, <johani@pdc.kth.se>                  Center for Parallel Com=
puters
Tel: +46(8)790 6844, Royal Institute of Technology, SE-100 44 Stockholm, Sw=
eden