I am trying to upgrade a sparc5 running 1.5H to 1.5U. my method for doing this
has been to attach an external drive, boot off that, then use tar to copy the
new binaries to my internal drive. I start the process, tar starts copying
files, and then this:


NMI: system interrupts: 40000000<VME=0,SBUS=0,ME>

dma0: error: csr=a4440212<ERR,DRAINING=0,IEN,ENDMA,BURST=1,FASTER,ALOADED>

esp0: DMA error; resetting

esp0: waiting for SCSI Bus Reset to happen

dma0: error: csr=a4440212<ERR,DRAINING=0,IEN,ENDMA,BURST=1,FASTER,ALOADED>

esp0: DMA error; resetting

<repeat ad-infinitum>

at which point the machine is dead and I have to power cycle, fsck all the
partitions, etc...

i also get this error occasionally on shutdown when syncing the disk.

basically this seems to happen whenever the scsi bus/disk gets heavily
exercised. but during day to day operation, everything is fine.

here's info on the internal drive:

sd0 at scsibus0 target 3 lun 0: <IBM, DCAS32160SUN2.1G, S65A> SCSI2 0/direct
fixed
sd0: 2063 MB, 8188 cyl, 3 head, 172 sec, 512 bytes/sect x 4226725 sectors

this is the OEM drive that came with the system.

any ideas? help would be appreciated

-matt