Re: Crash in tme -- mm58167.c

> On Mar 5, 2020, at 12:37 AM, Jason Thorpe <[email protected]> wrote:
>=20
> I'm installing NetBSD 9 in TME and encountered a problem ... looks =
like NetBSD issues a read to the mm58167 GO register, which causes an =
abort in _tme_mm58167_bus_cycle().  I don't see off hand where the =
kernel actually issues this read (it does issue a write to GO in =
mm58167_settime_ymdhms()).  Anyway, I worked around this for now by =
making TME return a 0 for this register read and everything seems fine.  =
But I'm curious if this is new, and wondering if anyone's actually =
running NetBSD/sun2 in TME at the moment?

Well, I checked in the change TME in pkgsrc, and I left the system to =
(slowly) extract the install base and etc install sets (lol, not going =
to try and run anything else on this, for now anyway).  I still have not =
managed to find where the kernel is issuing this register read, so it =
might point to a different issue in TME itself (I have not spent a great =
deal of time analyzing how the bus cycle logic works).  But it seemed =
antisocial to abort the emulator in this case regardless (and I think =
the real hardware in this case would probably also simply return an =
undefined value -- at least, I can't think if any reason why it would =
cause a bus error or similar fault).

-- thorpej