From owner-freebsd-current  Sat May  1 11:11:17 1999
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Date: Sun, 2 May 1999 04:10:48 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199905011810.EAA04969@godzilla.zeta.org.au>
To: blaz@gold.amis.net, freebsd-current@FreeBSD.ORG
Subject: Re: sound and sio problems after newbus changes
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>Also, has anybody problems with sio buffer overflows? My machine is a
>Pentium 200MMX, which should be able to handle 115.2K on a com port just
>fine (my old 486 did, when I was running 2.2.x, 3.0 and 4.0 before
>newbus). But now I'm receiving lots of sio overflows, it is as simple as
>typing "ATI4" to my Courier, some characters get lost on output.

Fast interrupts were broken in early versions of new-bus.  Without
fast interrupts, sio interrupt latency is limited by the worst spl
hog in the system.

Bruce


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