"scsi bus continuously busy"
pb at pbcl.net
Sat May 2 15:00:54 CDT 2020
On Sat, May 02, 2020 at 10:22:02AM -0700, Alan Perry via cctalk wrote:
> >sc0 at vme24d16 200000 vec 0x40
> >sd0 at sc0 slave 0
> >si0: sc_cmd: scsi bus continuously busy
> >sc0: resetting scsi bus
> >sd1 at sc0 slave 1
Not that I know these particular devices, but is it at all possible one
of the cables is in backwards? That sounds like the kind of behaviour
you get with 50-pin SCSI if an IDC connector is upside down.
But otherwise, this message presumably means the host controller is
sensing BSY# asserted when it didn't expect it. So the first order of
business would be to find out whether BSY# on the bus is genuinely
low. If not, it must be a controller fault. If yes, disconnect the
devices one at a time and see if the problem goes away. If it's still
stuck low with no devices attached, the issue is either in the
controller or termination.
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