From owner-freebsd-smp  Thu Sep  7 14:29:21 2000
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To: The Hermit Hacker <scrappy@hub.org>
Subject: Re: 'interrupt-level buffer overflows' for sio device? 
Cc: freebsd-current@FreeBSD.ORG, freebsd-smp@FreeBSD.ORG
In-reply-to: Your message of "Wed, 06 Sep 2000 21:06:26 -0300."
		<Pine.BSF.4.21.0009062102140.572-100000@thelab.hub.org> 
References: <Pine.BSF.4.21.0009062102140.572-100000@thelab.hub.org>  
Date: Thu, 07 Sep 2000 15:29:02 -0600
From: Warner Losh <imp@village.org>
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In message <Pine.BSF.4.21.0009062102140.572-100000@thelab.hub.org> The Hermit Hacker writes:
: sio1: 32 more interrupt-level buffer overflows (total 32)

From the man page:
     sio%d: interrupt-level buffer overflow.  Problem in the bottom half of
     the driver.

This likely means that the bottom half of sio isn't running fast
enough to harvest the characters in the interrupt level buffers.

Warner


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