(esp0:0:0): select; 1 left in DMA buffer [intr 18, stat 91, step 4]
(esp0:0:0): select; 1 left in DMA buffer [intr 18, stat 90, step 4]
(esp0:0:0): select; 1 left in DMA buffer [intr 18, stat 90, step 4]
(esp0:0:0): select; 1 left in DMA buffer [intr 18, stat 91, step 4]
(esp0:0:0): select; 1 left in DMA buffer [intr 18, stat 91, step 4]
(esp0:0:0): select; 1 left in DMA buffer [intr 18, stat 90, step 4]

It's on a busy, but otherwise happy macppc server running netbsd-2 with an 
80 MB/sec ATTO SCSI card:

esiop0 at pci0 dev 13 function 0: Symbios Logic 53c896 (ultra2-wide scsi)
esiop0: using on-board RAM
esiop0: interrupting at irq 23
scsibus0 at esiop0: 16 targets, 8 luns per target
esiop1 at pci0 dev 13 function 1: Symbios Logic 53c896 (ultra2-wide scsi)
esiop1: using on-board RAM
esiop1: interrupting at irq 23
scsibus1 at esiop1: 16 targets, 8 luns per target

and

sd0 at scsibus1 target 0 lun 0: <ATA, Maxtor   6L250R0, BAH4> disk fixed
sd0: 233 GB, 121586 cyl, 64 head, 63 sec, 512 bytes/sect x 490234752 sectors
sd0: sync (25.00ns offset 14), 16-bit (80.000MB/s) transfers
sd1 at scsibus1 target 1 lun 0: <ATA, Maxtor   6B250R0, BAH4> disk fixed
sd1: 233 GB, 121586 cyl, 64 head, 63 sec, 512 bytes/sect x 490234752 sectors
sd1: sync (25.00ns offset 14), 16-bit (80.000MB/s) transfers, tagged queueing
sd2 at scsibus1 target 2 lun 0: <ATA, HDS72252 25VLAT8, V36O> disk fixed
sd2: 232 GB, 121130 cyl, 64 head, 63 sec, 512 bytes/sect x 488397168 sectors
sd2: sync (25.00ns offset 14), 16-bit (80.000MB/s) transfers, tagged queueing
sd3 at scsibus1 target 3 lun 0: <ATA, Maxtor   6L250R0, BAH4> disk fixed
sd3: 233 GB, 121586 cyl, 64 head, 63 sec, 512 bytes/sect x 490234752 sectors
sd3: sync (25.00ns offset 14), 16-bit (80.000MB/s) transfers, tagged queueing

Is this something to worry about? I can't find any references to this.

Thanks,
John Klos