Hi
 I tried as you suggested, and still get a kernel panic.

Chris

-----Original Message-----
From: Jarkko Teppo <jarkko.teppo@nfp.fi>
To: Chris Rupnik <chrisr@geeknet.montreal.qc.ca>; port-hp300@netbsd.org
<port-hp300@netbsd.org>
Date: Tuesday, July 06, 1999 3:52 AM
Subject: Re: hp425 kernel panic with DCM ports


>
>Chris Rupnik wrote..
>>Hi
>> Ok, made a lot of progress with the serial ports. I >am now able to run a
>>getty off the tty0 port and that port seems to work >perfectly, but not
the
>>tty00 ports (DCM)
>>
>> I can connect using tty00 via cu to my alpha >running a getty however,
and
>>i get this
>>
>>ptrap: bad kernel read access at 0xaa
>>trap type 8,code 0x525, v = 0xaa
>>kernel program counter = 0xca3ca
>>kernel: MMU fault trap
>>pid = -1 , pc = 000CA3CA, ps = 2304, sfc = 1, dfc = >1
>>
>>lots of numbers deleted
>
>
><snip>
>>dcm0 at dio0 scode 26 ipl 3
>>dcm1 at dio0 scode 27 ipl 3
>>dcm2 at dio0 scode 28 ipl 3
>>dcm3 at dio0 scode 29 ipl 3
>
>
>Try changing the ipl from three to five, worked for
>me. I got the same crash as you did and the
>backtrace looked similar. Changing the ipl
>made them work.
>
>btw, the dcm:s *seem* to work on distribution
>generic kernels with ipl3 but not if you
>try to compile a generic kernel.
>
>>interrupt levels: bio = 4, net = 5, tty = 5
>                                     =======?
>>Chris
>>
>
>--
>Jarkko Teppo jarkko.teppo@nfp.fi
>
>