wheeler@bistromath.mitre.org (Brien L. Wheeler) (06/28/91)
We are running a SPARCstation 2 with SunOS 4.1.1 Rev B. Our SCSI configuration is this:
esp0 - Emulex SCSI controller
sd0 - Internal Maxtor 207MB - SCSI ID 3
sd3 - External Sun 669MB - SCSI ID 0
st0 - External QIC-150 - SCSI ID 4
sr0 - External CD-ROM - SCSI ID 6
ss0 - External Scanner - SCSI ID 5
Occasionally the system will spit out error messages of a 'data transfer overrun' from the Maxtor 207MB:
esp0: data transfer overrun
State=DATA Last State=DATA_DONE
Latched stat=0x10<XZERO> intr=0x10<BUS> fifo 0x60
last msg out: <unknown msg 0xff>; last msg in: COMMAND COMPLETE
DMA csr=0x94400010<INTEN>
addr=ff072000 last=ff070000 last_count=2000
Cmd dump for Target 3 Lun 0:
cdb=[ 0xa 0x4 0xf9 0xe8 0x10 0x0 0x0 0x0 0x0 0x0 ]
pkt_state 0xf<XFER,CMD,SEL,ARB> pkt_flags 0x0 pkt_statistics 0x2
cmd_flags=0x27 cmd_timeout 35
Mapped Dma Space:
Base = 0xff070000 Count = 0x2000
Transfer History:
Base = 0xff070000 Count = 0x2000
sd0: SCSI transport failed: reason 'data_ovr': retrying command
esp0: Target 3 now Synchronous at 4.0 mb/s max transmit rate
Does anyone have any ideas on why this is happening?
--
Brien L. Wheeler | I don't speak for MITRE, and they
wheeler@bistromath.mitre.org | don't speak for me.
"When I think back on all the crap I learned in high school..."