Attempting to Get Xen FreeBSD Dom0 working

[David P. Discher]

Hey All -

Attempting to follow the directions over at : http://wiki.xenproject.org/wiki/FreeBSD_Dom0

I’ve confirmed the hard way, not all the bits in the pvh_dom0_v8 -head copy of FreeBSD have been merged into freebsd-head, so running with a working kernel from the repo over at xenbits.  However, I’m getting a panic in the AcpiNsWalkNamespace when the Dom0 is booting.  I’m willing and have time to do some testing and poking.  And suggestions or pointers at what to look at next ?

Hardware is:

	Supermicro X8STi
	Intel(R) Xeon(R) CPU  E5620  @ 2.40GHz

Panic is:


	Fatal trap 12: page fault while in kernel mode
	cpuid = 0; apic id = 00
	fault virtual address	= 0x18
	fault code		= supervisor read data, page not present
	instruction pointer	= 0x20:0xffffffff803376f1
	stack pointer	        = 0x28:0xffffffff823228d0
	frame pointer	        = 0x28:0xffffffff82322940
	code segment		= base 0x0, limit 0xfffff, type 0x1b
				= DPL 0, pres 1, long 1, def32 0, gran 1
	processor eflags	= interrupt enabled, resume, IOPL = 0
	current process		= 0 (swapper)
	[ thread pid 0 tid 100000 ]
	Stopped at      AcpiNsWalkNamespace+0x31:       movq    0x18(%rsi),%rax
	db> bt
	Tracing pid 0 tid 100000 td 0xffffffff8180bbf0
	AcpiNsWalkNamespace() at AcpiNsWalkNamespace+0x31/frame 0xffffffff82322940
	AcpiWalkNamespace() at AcpiWalkNamespace+0xa8/frame 0xffffffff823229a0
	acpi_pci_attach() at acpi_pci_attach+0x154/frame 0xffffffff823229f0
	device_attach() at device_attach+0x38f/frame 0xffffffff82322a50
	bus_generic_attach() at bus_generic_attach+0x4a/frame 0xffffffff82322a70
	qpi_pcib_attach() at qpi_pcib_attach+0x76/frame 0xffffffff82322aa0
	device_attach() at device_attach+0x38f/frame 0xffffffff82322b00
	bus_generic_attach() at bus_generic_attach+0x4a/frame 0xffffffff82322b20
	device_attach() at device_attach+0x38f/frame 0xffffffff82322b80
	bus_generic_attach() at bus_generic_attach+0x4a/frame 0xffffffff82322ba0
	nexus_xen_attach() at nexus_xen_attach+0xa9/frame 0xffffffff82322bc0
	device_attach() at device_attach+0x38f/frame 0xffffffff82322c20
	bus_generic_new_pass() at bus_generic_new_pass+0x116/frame 0xffffffff82322c50
	bus_set_pass() at bus_set_pass+0x8c/frame 0xffffffff82322c80
	configure() at configure+0xa/frame 0xffffffff82322c90
	mi_startup() at mi_startup+0x108/frame 0xffffffff82322cb0
	xen_start() at xen_start+0x1f
	db>



-
David P. Discher
http://davidpdischer.com/
AIM: DavidDPD | Y!M: daviddpdz 



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