Date: Tue, 11 Mar 2008 10:03:58 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-acpi@freebsd.org, Leon Kos <leon.kos@lecad.uni-lj.si> Subject: Re: kern/121558: Supermicro X7SB4 Fatal trap 12 when ACPI disabled Message-ID: <200803111003.58445.jhb@freebsd.org> In-Reply-To: <200803111350.m2BDo3T2027051@freefall.freebsd.org> References: <200803111350.m2BDo3T2027051@freefall.freebsd.org>
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On Tuesday 11 March 2008 09:50:03 am Leon Kos wrote: > The following reply was made to PR kern/121558; it has been noted by GNATS. > > From: Leon Kos <leon.kos@lecad.uni-lj.si> > To: Dan Lukes <dan@obluda.cz> > Cc: freebsd-acpi@freebsd.org, bug-followup@freebsd.org > Subject: Re: kern/121558: Supermicro X7SB4 Fatal trap 12 when ACPI disabled > Date: Tue, 11 Mar 2008 14:45:40 +0100 (CET) > > mptable output of the system is located at: > http://www.lecad.uni-lj.si/~leon/other/x7sb4/mptable.txt Your MPTable is broken. It has 3 entries which use an I/O APIC ID of 0, but you don't have an I/O APIC with an ID of 0: I/O APICs: APIC ID Version State Address 2 0x20 usable 0xfec00000 3 0x20 usable 0xfecc0000 4 0x20 usable 0xfecc0400 -- I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN# ... INT active-lo level 13 0:A 0 16 INT active-lo level 15 0:A 0 17 INT active-lo level 5 0:A 0 19 You can work around this by manually specifying the routing for these devices with hints. E.g. to use I/O APIC 2, you would do: hw.pci13.0.INTA.irq=16 hw.pci15.0.INTA.irq=17 hw.pci5.0.INTA.irq=19 To use one of the other I/O APICs you will need to examine the dmesg to find the first IRQ for the I/O APIC (boot verbose might help) and add that to 16, 17, 19, etc. to come up with the appropriate IRQ number. In this case after looking at your dmesg, the BIOS uses the same GSI layout for the I/O APICs that FreeBSD's MP Table code uses, so you can just use the IRQs from the ACPI kernel. From your dmesg ACPI is using the settings above (i.e. all 3 devices are using I/O APIC 2). -- John Baldwin
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