Date: Thu, 11 Sep 2008 23:53:43 -0700 From: Jeremy Chadwick <koitsu@FreeBSD.org> To: Bruce M Simpson <bms@incunabulum.net> Cc: KAHO Toshikazu <vinwa@rocky.kais.kyoto-u.ac.jp>, FreeBSD stable <freebsd-stable@freebsd.org>, John Baldwin <jhb@freebsd.org> Subject: Re: alpm(4) I/O range is claimed by ACPI Message-ID: <20080912065343.GB49512@icarus.home.lan> In-Reply-To: <48C927D6.5020800@incunabulum.net> References: <48C8F684.8090409@incunabulum.net> <20080911110407.GC25493@icarus.home.lan> <48C927D6.5020800@incunabulum.net>
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On Thu, Sep 11, 2008 at 03:14:46PM +0100, Bruce M Simpson wrote: > Jeremy Chadwick wrote: >> ... >> Might mention this to jhb@ to see if it's related to the SMBus changes >> made 1.5 years ago: >> http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/pci/alpm.c >> > > Thanks for the pointers. The other reports sound like duplicate reports > of the same issue. > > I'm not sure that backing out the last change is going to help. The BIOS > has generally set up the I/O resource before FreeBSD boots; the > bus_set_resource() call might only be useful in those cases where that > hasn't happened. > In any event, in alpm_attach(), the rman is going to notice that the bus > space is already allocated by acpi(4), and will balk. > > I'm sure there has been some kind of override mechanism in place for > certain other drivers; but they seem to boil down to using an ACPI > attachment of some kind, which won't work here as alpm(4) is a PCI > function and needs to attach to the pcib parent. > > It would be really, really useful to have working SMBus drivers right > now on a machine I can actually touch... Interesting timing -- Toshikazu Kaho just reported the same issue with alpm(4) today: http://lists.freebsd.org/pipermail/freebsd-stable/2008-September/044989.html I've CC'd him, as he's probably unaware of this already-existing thread. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
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