port-xen/42167: XEN3_DOM0 kernel hangs at boot, GENERIC works fine

[snj%pobox.com@localhost]

>Number:         42167
>Category:       port-xen
>Synopsis:       XEN3_DOM0 kernel hangs at boot, GENERIC works fine
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    port-xen-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Oct 09 23:25:00 +0000 2009
>Originator:     Soren Jacobsen
>Release:        latest netbsd-5
>Organization:
>Environment:
NetBSD nimbus.blef.org 5.0_STABLE NetBSD 5.0_STABLE (GENERIC) #0: Fri Oct  9 
15:26:55 PDT 2009  
snj%nimbus.blef.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64
>Description:
My amd64 machine, running today's netbsd-5, boots a GENERIC kernel just fine.  
However, using xenkernel33-3.3.2 and XEN3_DOM0, I get stuck after

azalia0: codec[2]: Realtek ALC885 (rev. 1.1), HDA rev. 1.0

GENERIC dmesg:

NetBSD 5.0_STABLE (GENERIC) #0: Fri Oct  9 15:26:55 PDT 2009
        snj%nimbus.blef.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC
total memory = 4060 MB
avail memory = 3920 MB
timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
SMBIOS rev. 2.4 @ 0xf0100 (38 entries)
Gigabyte Technology Co., Ltd. EG45M-DS2H ( )
mainbus0 (root)
cpu0 at mainbus0 apid 0: Intel 686-class, 2999MHz, id 0x1067a
cpu1 at mainbus0 apid 1: Intel 686-class, 2999MHz, id 0x1067a
ioapic0 at mainbus0 apid 2: pa 0xfec00000, version 20, 24 pins
acpi0 at mainbus0: Intel ACPICA 20080321
acpi0: X/RSDT: OemId <GBT   ,GBTUACPI,42302e31>, AslId <GBTU,01010101>
acpi0: SCI interrupting at int 9
acpi0: fixed-feature power button present
timecounter: Timecounter "ACPI-Fast" frequency 3579545 Hz quality 1000
ACPI-Fast 24-bit timer
acpibut0 at acpi0 (PWRB, PNP0C0C): ACPI Power Button
attimer1 at acpi0 (TMR, PNP0100): io 0x40-0x43
hpet0 at acpi0 (HPET, PNP0103): mem 0xfed00000-0xfed003ff irq 0,8
timecounter: Timecounter "hpet0" frequency 14318179 Hz quality 2000
pcppi1 at acpi0 (SPKR, PNP0800): io 0x61
midi0 at pcppi1: PC speaker (CPU-intensive output)
sysbeep0 at pcppi1
UAR1 (PNP0501) at acpi0 not configured
LPT1 (PNP0400) at acpi0 not configured
FWH (INT0800) at acpi0 not configured
attimer1: attached to pcppi1
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: vendor 0x8086 product 0x2e20 (rev. 0x03)
agp0 at pchb0: detected 32764k stolen memory
agp0: aperture at 0xd0000000, size 0x10000000
vga0 at pci0 dev 2 function 0: vendor 0x8086 product 0x2e22 (rev. 0x03)
wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
drm at vga0 not configured
vendor 0x8086 product 0x2e23 (miscellaneous display, revision 0x03) at pci0 dev 
2 function 1 not configured
uhci0 at pci0 dev 26 function 0: vendor 0x8086 product 0x3a37 (rev. 0x00)
uhci0: interrupting at ioapic0 pin 16
usb0 at uhci0: USB revision 1.0
uhci1 at pci0 dev 26 function 1: vendor 0x8086 product 0x3a38 (rev. 0x00)
uhci1: interrupting at ioapic0 pin 21
usb1 at uhci1: USB revision 1.0
uhci2 at pci0 dev 26 function 2: vendor 0x8086 product 0x3a39 (rev. 0x00)
uhci2: interrupting at ioapic0 pin 18
usb2 at uhci2: USB revision 1.0
ehci0 at pci0 dev 26 function 7: vendor 0x8086 product 0x3a3c (rev. 0x00)
ehci0: interrupting at ioapic0 pin 18
ehci0: EHCI version 1.0
ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2
usb3 at ehci0: USB revision 2.0
azalia0 at pci0 dev 27 function 0: Generic High Definition Audio Controller
azalia0: interrupting at ioapic0 pin 22
azalia0: host: 0x8086/0x3a3e (rev. 0), HDA rev. 1.0
ppb0 at pci0 dev 28 function 0: vendor 0x8086 product 0x3a40 (rev. 0x00)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled, rd/line, wr/inv ok
ppb1 at pci0 dev 28 function 5: vendor 0x8086 product 0x3a4a (rev. 0x00)
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled, rd/line, wr/inv ok
re0 at pci2 dev 0 function 0: RealTek 8168/8111 PCIe Gigabit Ethernet (rev. 
0x02)
re0: interrupting at ioapic0 pin 17
re0: Ethernet address 00:1f:d0:2e:4b:c9
re0: using 256 tx descriptors
rgephy0 at re0 phy 7: RTL8169S/8110S/8211 1000BASE-T media interface, rev. 2
rgephy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 
1000baseT-FDX, auto
uhci3 at pci0 dev 29 function 0: vendor 0x8086 product 0x3a34 (rev. 0x00)
uhci3: interrupting at ioapic0 pin 23
usb4 at uhci3: USB revision 1.0
uhci4 at pci0 dev 29 function 1: vendor 0x8086 product 0x3a35 (rev. 0x00)
uhci4: interrupting at ioapic0 pin 19
usb5 at uhci4: USB revision 1.0
uhci5 at pci0 dev 29 function 2: vendor 0x8086 product 0x3a36 (rev. 0x00)
uhci5: interrupting at ioapic0 pin 18
usb6 at uhci5: USB revision 1.0
ehci1 at pci0 dev 29 function 7: vendor 0x8086 product 0x3a3a (rev. 0x00)
ehci1: interrupting at ioapic0 pin 23
ehci1: EHCI version 1.0
ehci1: companion controllers, 2 ports each: uhci3 uhci4 uhci5
usb7 at ehci1: USB revision 2.0
ppb2 at pci0 dev 30 function 0: vendor 0x8086 product 0x244e (rev. 0x90)
pci3 at ppb2 bus 3
pci3: i/o space, memory space enabled
pciide0 at pci3 dev 5 function 0
pciide0: vendor 0x1283 product 0x8213 (rev. 0x00)
pciide0: bus-master DMA support present, but unused (no driver support)
pciide0: primary channel wired to native-PCI mode
pciide0: using ioapic0 pin 21 for native-PCI interrupt
atabus0 at pciide0 channel 0
pciide0: secondary channel wired to native-PCI mode
atabus1 at pciide0 channel 1
fwohci0 at pci3 dev 7 function 0: vendor 0x104c product 0x8024 (rev. 0x00)
fwohci0: interrupting at ioapic0 pin 23
fwohci0: OHCI version 1.10 (ROM=0)
fwohci0: No. of Isochronous channels is 4.
fwohci0: EUI64 00:2f:c8:e9:00:00:1f:d0
fwohci0: Phy 1394a available S400, 3 ports.
fwohci0: Link S400, max_rec 2048 bytes.
ieee1394if0 at fwohci0: IEEE1394 bus
fwip0 at ieee1394if0: IP over IEEE1394
fwohci0: Initiate bus reset
pcib0 at pci0 dev 31 function 0
pcib0: vendor 0x8086 product 0x3a16 (rev. 0x00)
ahcisata0 at pci0 dev 31 function 2: vendor 0x8086 product 0x3a22
ahcisata0: interrupting at ioapic0 pin 19
ahcisata0: AHCI revision 1.2, 6 ports, 32 command slots, features 0xef22e0c0
atabus2 at ahcisata0 channel 0
atabus3 at ahcisata0 channel 1
atabus4 at ahcisata0 channel 2
atabus5 at ahcisata0 channel 3
atabus6 at ahcisata0 channel 4
atabus7 at ahcisata0 channel 5
ichsmb0 at pci0 dev 31 function 3: vendor 0x8086 product 0x3a30 (rev. 0x00)
ichsmb0: interrupting at ioapic0 pin 18
iic0 at ichsmb0: I2C bus
isa0 at pcib0
lpt0 at isa0 port 0x378-0x37b irq 7
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
fwohci0: BUS reset
fwohci0: node_id=0xc800ffc0, gen=1, CYCLEMASTER mode
ieee1394if0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
ieee1394if0: bus manager 0 (me)
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
azalia0: codec[2]: Realtek ALC885 (rev. 1.1), HDA rev. 1.0
azalia0: codec[3]: 0x8086/0x2803 (rev. 0.0), HDA rev. 1.0
audio0 at azalia0: full duplex, independent
atapibus0 at atabus0: 2 targets
uhub0 at usb0: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhub1 at usb1: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhub2 at usb2: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
uhub3 at usb3: vendor 0x8086 EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub3: 6 ports with 6 removable, self powered
cd0 at atapibus0 drive 1: <Pioneer DVD-ROM ATAPIModel DVD-106S 012, , E1.22> 
cdrom removable
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 4 (Ultra/66)
uhub4 at usb5: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub4: 2 ports with 2 removable, self powered
uhub5 at usb6: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub5: 2 ports with 2 removable, self powered
uhub6 at usb7: vendor 0x8086 EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub6: 6 ports with 6 removable, self powered
uhub7 at usb4: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub7: 2 ports with 2 removable, self powered
ahcisata0 port 0: device present, speed: 3.0Gb/s
wd0 at atabus2 drive 0: <WDC WD3200AAKS-00L9A0>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 298 GB, 620178 cyl, 16 head, 63 sec, 512 bytes/sect x 625140335 sectors
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
wd0(ahcisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133) 
(using DMA)
uhub8 at uhub3 port 3: Apple, Inc. Keyboard Hub, class 9/0, rev 2.00/96.15, 
addr 2
uhub8: single transaction translator
uhub8: 3 ports with 2 removable, bus powered
uhidev0 at uhub8 port 1 configuration 1 interface 0
uhidev0: Microsoft Microsoft 5-Button Mouse with IntelliEye(TM), rev 1.10/3.00, 
addr 3, iclass 3/1
ums0 at uhidev0: 5 buttons and Z dir.
wsmouse0 at ums0 mux 0
uhidev1 at uhub8 port 2 configuration 1 interface 0
uhidev1: Apple, Inc Apple Keyboard, rev 2.00/0.69, addr 4, iclass 3/1
ukbd0 at uhidev1
wskbd1 at ukbd0 mux 1
wskbd1: connecting to wsdisplay0
uhidev2 at uhub8 port 2 configuration 1 interface 1
uhidev2: Apple, Inc Apple Keyboard, rev 2.00/0.69, addr 4, iclass 3/0
uhid0 at uhidev2: input=1, output=0, feature=0
Kernelized RAIDframe activated
pad0: outputs: 44100Hz, 16-bit, stereo
audio1 at pad0: half duplex
>How-To-Repeat:
Have my hardware.  Try to be cool and use Xen like all the cool kids.  Lose.
>Fix: