Date: Tue, 24 Jan 2006 18:34:05 -0600 From: Craig Boston <craig@tobuj.gank.org> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-hackers@freebsd.org, Scott Long <scottl@samsco.org> Subject: Re: Weird PCI interrupt delivery problem (resolution, sort of) Message-ID: <20060125003405.GA29970@nowhere> In-Reply-To: <200601241043.51094.jhb@freebsd.org> References: <20060120014307.GA3118@nowhere> <200601201542.23464.jhb@freebsd.org> <20060124022511.GA99552@nowhere> <200601241043.51094.jhb@freebsd.org>
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On Tue, Jan 24, 2006 at 10:43:49AM -0500, John Baldwin wrote: > What if you do a read of the lapic before the write? Maybe doing 'x = > lapic->eoi; lapic->eoi = 0;'? Reading the lapic before the write has no effect. Reading the lapic after the write makes it work. Craig
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