Date: Thu, 17 Nov 2005 16:38:57 -0500 From: John Baldwin <jhb@freebsd.org> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: alan bryan <alanbryan1234@yahoo.com>, FreeBSD current mailing list <current@freebsd.org>, Mike Tancsa <mike@sentex.net>, freebsd-current@freebsd.org, "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>, Alexander Leidinger <Alexander@leidinger.net> Subject: Re: Side note on Shuttle XPC / AMD X2 (SN95G5V3) (Re: [PATCH] nve(4) locking cleanup) Message-ID: <200511171639.00807.jhb@freebsd.org> In-Reply-To: <200511171915.jAHJF0L6006229@apollo.backplane.com> References: <20051117010651.97608.qmail@web50303.mail.yahoo.com> <6.2.3.4.0.20051117120533.057ddae0@64.7.153.2> <200511171915.jAHJF0L6006229@apollo.backplane.com>
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On Thursday 17 November 2005 02:15 pm, Matthew Dillon wrote: > I haven't tried booting FreeBSD on my Shuttle XPC / AMD X2 based box, > but if you have users that are and are hitting either of the following > two problems, then I was able to implement a solution for DragonFly: I don't know if anyone has yet. > -- > > Problem #2: > > MPTable has an entry for IRQ 14 but not IRQ 15. This can cause > the ATA driver to lock the system up while attempting to access > the CD. > > Solution: > > If using the MPTable, a fixup is required. > > DragonFly Commit: > > http://leaf.dragonflybsd.org/mailarchive/commits/2005-10/msg00095.html Hmm, if the IRQ 15 is routed to intpin 15 as ISA (edge, active-hi), then FreeBSD will actually be ok with the missing entry as we assume ISA 1:1 mappings for pins 1-15 on the first I/O APIC. > -- > > Problem #3: > > ACPI and/or MPTable based interrupt routing is completely broken > for SMP builds. The tables report interrupt routing pins > 23 > on a motherboard which only has one IO APIC with only 24 bits (0-23). > Interrupts cannot be properly routed. That is truly odd. Windows and Linux must break on these boxes too then as they both depend on MP Table and/or _PRT to route interrupts as well. -- 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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