scsi0: device overrun (status a) on 0:0:0

NOTE: I am not on the list, please always keep me in CC.

Can anyone tell me what this means:

Apr 28 22:50:42 vegeta kernel: [179467.422680] scsi0: device overrun (status a) on 0:0:0
Apr 28 22:50:42 vegeta kernel: [179467.479433] scsi0: device overrun (status a) on 0:0:0
Apr 28 22:50:42 vegeta kernel: [179467.499404] scsi0: device overrun (status a) on 0:0:0
Apr 28 22:50:42 vegeta kernel: [179467.565196] scsi0: device overrun (status a) on 0:0:0
Apr 28 22:50:43 vegeta kernel: [179467.647090] scsi0: device overrun (status a) on 0:0:0

Kernel is 2.6.20.

I see this frequently in my logs/dmesg and have no clue what it really means. I have 2 disks that constantly give this, both are SEAGATE ST318404LW on an onboard AIC79xx controller (MB: SuperMicro X5DA8).

I see no noticable problems or speed issues. Kernel 2.6.17 did not show me this error.

A grep of the source shows this line is in drivers/scsi/aic7xxx/aic79xx_osm.c and nowhere else.

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 Got Gas???