Date: Sat, 22 Dec 2001 16:43:19 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: Josh Paetzel <friar_josh@webwarrior.net> Cc: Scott Lambert <lambert@lambertfam.org>, freebsd-stable@FreeBSD.ORG Subject: Re: My first 4.5-PRERELEASE Issue Message-ID: <200112230043.fBN0hJm98625@apollo.backplane.com> References: <20011221151520.A3202@twincat.vladsempire.net> <20011222051904.GA39924@laptop.lambertfam.org> <20011222161225.A223@twincat.vladsempire.net> <200112222230.fBMMUgX96404@apollo.backplane.com> <20011222183759.B223@twincat.vladsempire.net>
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:> :> > as well: sio0: 1 more silo overflow (total 1257)
:> :> > sio0: 1 more silo overflow (total 1258)
:> :> > sio0: 1 more silo overflow (total 1259)
:> :> > sio0: 1 more silo overflow (total 1260)
:> :>
:> :> Are you sure you haven't just previously overlooked these types of messages?
:> :
:> :Yes. They started when I indicated.
:>
:> Try changing the FIFO_RX_HIGH to FIFO_RX_MEDH in isa/sio.c line 2385,
:> recompile your kernel, and see if that helps.
:>
:> -Matt
:
:Done and done. Problem all gone. Thanks.
:
:Josh
Uh huh. I had this same exact problem years ago. *YEARS* ago, and
proposed something similar but got shot down. There isn't much of
a point of having a serial FIFO if you program it to interrupt you
a few bytes before it would otherwise overflow.
This time I'm going to commit the change. Nay sayers can fix the
serial fast interrupt or fix the system to not disable interrupts
for long periods of time, and change it back AFTER they've done
that.
-Matt
Matthew Dillon
<dillon@backplane.com>
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