Date: Fri, 16 Jul 2004 23:15:49 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: green@freebsd.org Cc: current@freebsd.org Subject: Re: pccbb crashes when detaching (unsafe interrupt handler) Message-ID: <20040716.231549.58438445.imp@bsdimp.com> In-Reply-To: <20040715180854.GZ1626@green.homeunix.org> References: <20040715180854.GZ1626@green.homeunix.org>
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In message: <20040715180854.GZ1626@green.homeunix.org>
Brian Fundakowski Feldman <green@freebsd.org> writes:
: This is what I have so far, but I'm not happy with it because it
: seems like it would be so much nicer to increment a count on the
: ithread's intrhand and drain any current interrupt out of the
: ithread, but possibly making each interrupt a lot more expensive.
I don't like this. And I don't understand the problem at all. If the
device isn't there, we already handle it correctly. I think that it
is a lot of code to handle an extremely rare case. I don't like
taking out an sx lock on every single interrupt.
Please do not commit this. Thanks.
Warner
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