Re: Z50 - "wsdisplay_console_initted < 2" panic on hpcmips HEAD

The panic should be fixed in sys/dev/hpc/hpcfb.c rev 1.62:

http://mail-index.netbsd.org/source-changes/2021/06/05/msg130014.html

However, userland is quite buggy unfortunately :(. sh reports
random signals when children exit, e.g.,

----
# cc
cc: fatal error: no input files
compilation terminated.
[1]   Window size changed (core dumped) cc
----

(core was not dumped actually...)

If this is due to cache management for VR41xx as pointed out
by Nick, HPCMIPS_L1CACHE_DISABLE option may be useful for
debug. However, this option has been left broken ~ 20 years...

Thanks,
rin

On 2021/06/01 0:11, David Brownlee wrote:
> Could you try booting
> http://sync.absd.org/hpcmips/netbsd-2021-05-31-extra-output.gz
> 
> It should still panic with the double console attachment, but
> hopefully may give more output (some DBGX lines) as it does
> 
> David
> 
> On Sun, 30 May 2021 at 13:31, Alexander Bochmann <[email protected]> wrote:
>>
>> ...on Fri, May 28, 2021 at 11:38:44PM +0200, Alexander Bochmann wrote:
>>
>>   > ...on Thu, May 27, 2021 at 10:04:37PM +0200, Alexander Bochmann wrote:
>>   >  > I think I'll quickly try to build a kernel with NBIVIDEO, just to see
>>   >  > what happens.
>>   > Heh no, that's not it.
>>
>> After some trial and error with kernel build options, it turns out
>> that the console doesn't seem to get initialized at all when bivideo
>> is excluded (and having pseudo-device biconsdev is required too).
>>
>> bicons doesn't seem to be used elsewhere besides hpc machines, so
>> if it's involved with the problem, it wouldn't show up anywhere else -
>> but on the other hand I can't see it calling *_cnattach, at least not
>> in an obvious way, so I'm most probably looking in the wrong direction
>> with this.
>>
>> I also built a HEAD kernel that drops anything that's not used by the
>> Z50 hardware, and the panic still occurs.
>>
>> Alex.
>>
>