Very Computer

1. DMA error when writing to disk

When i try to write some data to disk i got a lot of

pciide0:1:0: bus-master DMA error: missing interrupt, status=0x21
wd1a: DMA error writing fsbn 457840 of 457840-457967 (wd1 bn 457840; cn 28
tn 127 sn 19), retrying
wd1: soft error (corrected)

my system is obsd 3.2 on sparc64

Where is the problem ?

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