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From: cgd@toe.CS.Berkeley.EDU (Chris G. Demetriou)
Newsgroups: comp.unix.bsd
Subject: Re: [386BSD] help: what is "com0: silo overflow" error?
Date: 26 Nov 92 17:49:08
Organization: Kernel Hackers 'r' Us
Lines: 51
Message-ID: <CGD.92Nov26174908@toe.CS.Berkeley.EDU>
References: <84358@ut-emx.uucp>
NNTP-Posting-Host: toe.cs.berkeley.edu
In-reply-to: vax@ccwf.cc.utexas.edu's message of 26 Nov 92 03:03:29 GMT
In article <84358@ut-emx.uucp> vax@ccwf.cc.utexas.edu (Vax) writes:
>I guess the title says it all, I get this error whenever I download
>using rz/sz, and I got it while online (reading a short text file)
>I'm running a 2400/v.42 modem (with MNP-5) to a Trailblazer, so compression
>-is- on (I think).
>No special UARTS, I just open /dev/com1 at 9600 baud and use the
>rts/cts handshaking - perhaps I don't have that set, could that be the error?
*FIRST* of all, install all of the patchkit patches.
(i *believe* that the latest version is in
agate.berkeley.edu:pub/386BSD/386bsd-0.1/unofficial/terry/beta.patch.kit)
install the patces.
second, get my serial driver hacks, from
agate.berkeley.edu:pub/386bsd/386bsd-0.1/unofficial/cgd
you've several problems here:
(1) the standard serial driver *DOES NOT* do the rts/cts handling right,
even *if* you "stty crtscts". The patched driver (a la the patchkit)
doesn't either.
(2) if you can replace your UART with a 16550, you'll really be better off.
My serial driver hacks should help a bit, but you a 550 is your
best solution...
what type of machine are you using? trying to pull 9600 out of a 16450
will be damned hard, w/ interrupt-driven operation, unless you've
a *fast* machine...
as for you scsi problems: the SCSI driver that comes with 0.1 can
be at best described asa hack.
get Julian E.'s SCSI driver from ref.tfs.com:~julian
(my serial driver can also be found in ref.tfs.com:~cgd...)
(also: ref.tfs.com == 140.145.254.251 and agate.berkeley.edu ==
128.32.155.1)
good luck!
Chris
(wearing my "happy, friendly hacker!" hat...)
--
Chris G. Demetriou cgd@cs.berkeley.edu
"Sometimes it is better to have twenty million instructions by
Friday than twenty million instructions per second." -- Wes Clark