Subject: Re: unexpected halt of system while trying to print
To: Martin Heller <mheller@student.uni-kl.de>
From: Kent Franken <franken@msn.com>
List: port-alpha
Date: 03/06/1998 16:13:08
How can I get off this listserv?  I don't have an Alpha.


-----Original Message-----
From: Martin Heller <mheller@student.uni-kl.de>
To: Chris G. Demetriou <cgd@pa.dec.com>
Cc: port-alpha@NetBSD.ORG <port-alpha@NetBSD.ORG>
Date: Friday, March 06, 1998 11:57 AM
Subject: Re: unexpected halt of system while trying to print 


>the way around this bug:
>After building serveral kernels with different options and using
>different devices, the following works:
>1) use /dev/lpa as device
>2) don't delete the 'irg ?' in the kernel config file
>printing should work then ...
>I'll investigate further, why /dev/lpt0 won't work ...
>EXAMINE on SRM after halt gave:
> PMEM: 0 000000000
>don't know if there were more or less zeros, but there was nothing
>else.
>Another interesting thing:
>if I do a 'ktrace -t iencs cat anytext > /dev/lpt0' the system won't
>halt! But it won't print anything either ... a ctrl-C terminates it
>...mmmh printcap os now OK .. 
>whoa !! this is curious - nearly absurd !!
>printer lpt is /dev/lpt
>printer lp is /dev/lpa
>
>'lpr -Plpt anytext' works !!!
>'lpr -Plp any' works (expected)
>BUT: lpr on lpt is AWFULL LAME -- 2 line per minute !!!
>QUESTION NOW ARISING: why is the polling device faster the 
>                      interrupt device OR HAVE THEY BEEN
>                      INTERCHANGED ???? this could perhaps
>                      explain, why a 'cat anything > /dev/lpt'
>                      doesn't work - cat puts to much things
>                      out to the polling device who gets 
>                      scrambled. lpr does a better job on
>                      this. This is just my guess ...
>MARTIN
>
>