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Date:      Fri, 8 Sep 2000 00:09:10 -0300 (ADT)
From:      The Hermit Hacker <scrappy@hub.org>
To:        Warner Losh <imp@village.org>
Cc:        Bruce Evans <bde@zeta.org.au>, freebsd-current@FreeBSD.ORG, freebsd-smp@FreeBSD.ORG
Subject:   Re: 'interrupt-level buffer overflows' for sio device? 
Message-ID:  <Pine.BSF.4.21.0009080008090.527-100000@thelab.hub.org>
In-Reply-To: <200009080302.VAA50459@harmony.village.org>

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On Thu, 7 Sep 2000, Warner Losh wrote:

> Also, this is interrupt level overflows.  We can run the fast
> interrupts fast enough to harvest characters from the hardware.
> What's not happening is that sio's bottom half isn't being run fast
> enough so the interrupt level buffers overflow.

Okay, I'm a little confused here ... from what I'm reading/following, this
isn't a new problem ... or is it?  If not, why has it suddenly manifested
itself with the new SMP code?




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