Date: Mon, 3 Apr 2006 11:52:25 -0400 From: John Baldwin <jhb@freebsd.org> To: "Conrad J. Sabatier" <conrads@cox.net> Cc: bms@spc.org, freebsd-current@freebsd.org Subject: Re: device atpic to be deprecated? Message-ID: <200604031152.27109.jhb@freebsd.org> In-Reply-To: <20060402060734.0cc8fdd0.conrads@cox.net> References: <20060329020527.f8f087a4.conrads@cox.net> <200603291315.56671.jhb@freebsd.org> <20060402060734.0cc8fdd0.conrads@cox.net>
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On Sunday 02 April 2006 07:07, Conrad J. Sabatier wrote: > On Wed, 29 Mar 2006 13:15:54 -0500 > John Baldwin <jhb@freebsd.org> wrote: > > On Wednesday 29 March 2006 12:08, Scott Long wrote: > > > John Baldwin wrote: > > > > > > > > I think that once the lapic timer stuff was added almost all of the APIC > > > > issues I was aware of went away on amd64 that were fixed by using device > > > > atpic instead. Most of the earlier problems were due to chipsets not > > > > setting up pin 0 as extint, etc. but all that is no longer relevant when > > > > we switched to using the lapic timer and stopped using irq0 and irq8 with > > > > APIC. This is the first I've heard since the lapic timer stuff that APIC > > > > didn't work on an amd64 box, and device atpic has been off by default in > > > > HEAD for quite a while now. If we were able to require APIC on amd64, then > > > > we might be able to try out some optimizations and other things I haven't > > > > bothered with since they wouldn't be feasible on i386. > > > > > > > > > > Fine, remove it. > > > > I have to make sure it really works for everyone first though before > > removing it would really be viable. :-/ > > So, would it be necessary to upgrade to HEAD in order to make sure that > this problem won't still occur on my box? Or has this stuff already > been merged to STABLE? This particular bunch of code is identical in HEAD and 6.x right now, so we can probably debug it on STABLE just fine. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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