[Xen-users] gentoo [amd64] - xen sata_promise PATA 20378 not found Neo MSI mobo

["Rene Pineda" <yositunel@xxxxxxxxx>]

Hi -
Xen cannot detect a PATA drive connected to my on-board promise 20378 K8T Neon MSI mobo.

When I boot using a non exen kernel, the PATA is dected accordingly.  Any thoughts?  

Following is dmesg from a regular non-exen kernel
#uname -a
Linux localhost 2.6.17-gentoo-r8 #1 Sun Oct 29 14:58:57 EST 2006 x86_64 AMD Athlon(tm) 64 Processor 3200+ AuthenticAMD GNU/Linux
#dmesg
Bootdata ok (command line is root=/dev/hdb3)
Linux version 
2.6.17-gentoo-r8 (root@localhost) (gcc version 4.1.1 (Gentoo 4.1.1)) #1 Sun Oct 29 14:58:57 EST 2006
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
 BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000003fff0000 (usable)
 BIOS-e820: 000000003fff0000 - 000000003fff8000 (ACPI data)
 BIOS-e820: 000000003fff8000 - 0000000040000000 (ACPI NVS)
 BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
 BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
 BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved)
DMI 2.3 present.
ACPI: RSDP (v000 AMI                                   ) @ 0x00000000000fa0c0
ACPI: RSDT (v001 AMIINT VIA_K8   0x00000010 MSFT 0x00000097) @ 0x000000003fff0000
ACPI: FADT (v001 AMIINT VIA_K8   0x00000011 MSFT 0x00000097) @ 0x000000003fff0030
ACPI: MADT (v001 AMIINT VIA_K8   0x00000009 MSFT 0x00000097) @ 0x000000003fff00c0
ACPI: DSDT (v001    VIA   VIA_K8 0x00001000 MSFT 0x0100000d) @ 0x0000000000000000
On node 0 totalpages: 257373
  DMA zone: 2868 pages, LIFO batch:0
  DMA32 zone: 254505 pages, LIFO batch:31
ACPI: PM-Timer IO Port: 0x808
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
Processor #0 15:4 APIC version 16
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 2, version 3, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Setting APIC routing to flat
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at 50000000 (gap: 40000000:bec00000)
Checking aperture...
CPU 0: aperture @ d0000000 size 128 MB
Built 1 zonelists
Kernel command line: root=/dev/hdb3
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 32768 bytes)
time.c: Using 3.579545 MHz WALL PM GTOD PIT/TSC timer.
time.c: Detected 2000.142
 MHz processor.
Console: colour VGA+ 80x25
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Memory: 1027512k/1048512k available (2036k kernel code, 20232k reserved, 756k data, 152k init)
Calibrating delay using timer specific routine.. 4002.41 BogoMIPS (lpj=2001205)
Mount-cache hash table entries: 256
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 1024K (64 bytes/line)
CPU: AMD Athlon(tm) 64 Processor 3200+ stepping 08
Using local APIC timer interrupts.
result 12500907
Detected 12.500 MHz APIC timer.
testing NMI watchdog ... OK.
NET: Registered protocol family 16
ACPI: bus type pci registered
PCI: Using configuration type 1
ACPI: Subsystem revision 20060127
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
PCI: Probing PCI hardware (bus 00)
PCI: Quirk-MSI-K8T Soundcard On
PCI: Unexpected Value in PCI-Register: no Change!
Boot video device is 0000:01:00.0
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: Power Resource [URP1] (off)
ACPI: Power Resource [URP2] (off)
ACPI: Power Resource [FDDP] (off)
ACPI: Power Resource [LPTP] (off)
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKC] (IRQs *3 4 5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 *5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI init
pnp: PnP ACPI: found 11 devices
SCSI subsystem initialized
usbcore: registered new driver usbfs
usbcore: registered new driver hub
PCI: Using ACPI for IRQ routing
PCI: If a device doesn't work, try "pci=routeirq".  If it helps, post a report
agpgart: Detected AGP bridge 0
agpgart: AGP aperture is 128M @ 0xd0000000
PCI-DMA: Disabling IOMMU.
PCI: Bridge: 0000:00:01.0
  IO window: 9000-9fff
  MEM window: cfe00000-cfefffff
  PREFETCH window: bfd00000-cfcfffff
PCI: Setting latency timer of device 0000:00:01.0 to 64
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 6, 262144 bytes)
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
IA32 emulation $Id: sys_ia32.c,v 1.32 2002/03/24 13:02:28 ak Exp $
Initializing Cryptographic API
io scheduler noop registered
io scheduler deadline registered (default)
io scheduler cfq registered
Linux agpgart interface v0.101 (c) Dave Jones
PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
mice: PS/2 mouse device common for all mice
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller at PCI slot 0000:00:0f.1
GSI 16 sharing vector 0xA9 and IRQ 16
ACPI: PCI Interrupt 0000:00:0f.1[A] -> GSI 20 (level, low) -> IRQ 16
PCI: VIA IRQ fixup for 0000:00:0f.1, from 255 to 0
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt8237 (rev 00) IDE UDMA133 controller on pci0000:00:0f.1
    ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:pio, hdb:DMA
    ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:DMA, hdd:DMA
Probing IDE interface ide0...
input: AT Translated Set 2 keyboard as /class/input/input0
hdb: HDS722525VLAT80, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
input: PS/2 Generic Mouse as /class/input/input1
input: AT Translated Set 2 keyboard as /class/input/input2
hdc: OEM CD-ROM F563E, ATAPI CD/DVD-ROM drive
hdd: DVD-RW IDE1008, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hdb: max request size: 512KiB
hdb: 390721968 sectors (200049 MB) w/7938KiB Cache, CHS=24321/255/63, UDMA(100)
hdb: cache flushes supported
 hdb: hdb1 hdb2 hdb3 hdb4 < hdb5 >
hdc: ATAPI 52X CD-ROM drive, 128kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 
3.20
hdd: ATAPI 40X DVD-ROM DVD-R CD-R/RW drive, 2048kB Cache, UDMA(33)
libata version 1.20 loaded.
sata_promise 0000:00:0d.0: version 1.04
GSI 17 sharing vector 0xB1 and IRQ 17
ACPI: PCI Interrupt 0000:00:
0d.0[A] -> GSI 17 (level, low) -> IRQ 17
sata_promise PATA port found
ata1: SATA max UDMA/133 cmd 0xFFFFC2000000E200 ctl 0xFFFFC2000000E238 bmdma 0x0 irq 17
ata2: SATA max UDMA/133 cmd 0xFFFFC2000000E280 ctl 0xFFFFC2000000E2B8 bmdma 0x0 irq 17
ata3: PATA max UDMA/133 cmd 0xFFFFC2000000E300 ctl 0xFFFFC2000000E338 bmdma 0x0 irq 17
ata1: SATA link down (SStatus 0)
scsi0 : sata_promise
ata2: SATA link down (SStatus 0)
scsi1 : sata_promise
ata3: dev 1 cfg 49:2f00 82:346b 83:7f01 84:4003 85:3468 86:3c01 87:4003 88:003f
ata3: dev 1 ATA-6, max UDMA/100, 234441648 sectors: LBA48
ata3: dev 1 configured for UDMA/100
scsi2 : sata_promise
  Vendor: ATA       Model: WDC WD1200JB-00D  Rev: 75.1
  Type:   Direct-Access                      ANSI SCSI revision: 05
SCSI device sda: 234441648 512-byte hdwr sectors (120034 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
SCSI device sda: 234441648 512-byte hdwr sectors (120034 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
 sda: sda1 sda2
sd 2:0:1:0: Attached scsi disk sda
GSI 18 sharing vector 0xB9 and IRQ 18
ACPI: PCI Interrupt 0000:00:
10.4[C] -> GSI 21 (level, low) -> IRQ 18
PCI: VIA IRQ fixup for 0000:00:10.4, from 3 to 2
ehci_hcd 0000:00:10.4: EHCI Host Controller
ehci_hcd 0000:00:10.4: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:10.4: irq 18, io mem 0xcfffed00
ehci_hcd 0000:00:10.4: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 8 ports detected
USB Universal Host Controller Interface driver v3.0
hub 1-0:1.0: over-current change on port 5
ACPI: PCI Interrupt 0000:00:10.0[A] -> GSI 21 (level, low) -> IRQ 18
PCI: VIA IRQ fixup for 0000:00:10.0, from 11 to 2
uhci_hcd 0000:00:10.0: UHCI Host Controller
uhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:10.0: irq 18, io base 0x0000b400
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
hub 1-0:1.0: over-current change on port 6
ACPI: PCI Interrupt 0000:00:10.1[A] -> GSI 21 (level, low) -> IRQ 18
PCI: VIA IRQ fixup for 0000:00:
10.1, from 11 to 2
uhci_hcd 0000:00:10.1: UHCI Host Controller
uhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:10.1: irq 18, io base 0x0000b800
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
hub 1-0:1.0: over-current change on port 7
ACPI: PCI Interrupt 0000:00:10.2[B] -> GSI 21 (level, low) -> IRQ 18
PCI: VIA IRQ fixup for 0000:00:
10.2, from 10 to 2
uhci_hcd 0000:00:10.2: UHCI Host Controller
uhci_hcd 0000:00:10.2: new USB bus registered, assigned bus number 4
uhci_hcd 0000:00:10.2: irq 18, io base 0x0000bc00
usb usb4: configuration #1 chosen from 1 choice
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
hub 1-0:1.0: over-current change on port 8
ACPI: PCI Interrupt 0000:00:10.3[B] -> GSI 21 (level, low) -> IRQ 18
PCI: VIA IRQ fixup for 0000:00:
10.3, from 10 to 2
uhci_hcd 0000:00:10.3: UHCI Host Controller
uhci_hcd 0000:00:10.3: new USB bus registered, assigned bus number 5
uhci_hcd 0000:00:10.3: irq 18, io base 0x0000c000
usb usb5: configuration #1 chosen from 1 choice
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 2 ports detected
device-mapper: 4.6.0-ioctl (2006-02-17) initialised: dm-devel@xxxxxxxxxx
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 15
ReiserFS: hdb3: found reiserfs format "3.6" with standard journal
ReiserFS: hdb3: using ordered data mode
ReiserFS: hdb3: journal params: device hdb3, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: hdb3: checking transaction log (hdb3)
ReiserFS: hdb3: Using r5 hash to sort names
VFS: Mounted root (reiserfs filesystem) readonly.
Freeing unused kernel memory: 152k freed
r8169 Gigabit Ethernet driver 
2.2LK loaded
GSI 19 sharing vector 0xC1 and IRQ 19
ACPI: PCI Interrupt 0000:00:0b.0[A] -> GSI 16 (level, low) -> IRQ 19
eth0: Identified chip type is 'RTL8169s/8110s'.
eth0: RTL8169 at 0xffffc20000040f00, 00:0c:76:b3:3d:7e, IRQ 19
ReiserFS: dm-1: found reiserfs format "3.6" with standard journal
ReiserFS: dm-1: using ordered data mode
ReiserFS: dm-1: journal params: device dm-1, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: dm-1: checking transaction log (dm-1)
ReiserFS: dm-1: Using r5 hash to sort names
ReiserFS: dm-0: found reiserfs format "3.6" with standard journal
ReiserFS: dm-0: using ordered data mode
ReiserFS: dm-0: journal params: device dm-0, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: dm-0: checking transaction log (dm-0)
ReiserFS: dm-0: Using r5 hash to sort names
ReiserFS: dm-2: found reiserfs format "3.6" with standard journal
ReiserFS: dm-2: using ordered data mode
ReiserFS: dm-2: journal params: device dm-2, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: dm-2: checking transaction log (dm-2)
ReiserFS: dm-2: Using r5 hash to sort names
ReiserFS: dm-3: found reiserfs format "3.6" with standard journal
ReiserFS: dm-3: using ordered data mode
ReiserFS: dm-3: journal params: device dm-3, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: dm-3: checking transaction log (dm-3)
ReiserFS: dm-3: Using r5 hash to sort names
Adding 2008116k swap on /dev/hdb2.  Priority:-1 extents:1 across:2008116k
Real Time Clock Driver v1.12ac

------------------------------------
The xen-enable kernel (linux-2.6.16.28-xen) dmesg shows:

Bootdata ok (command line is root=/dev/hdb3)
Linux version 2.6.16.28-xen (root@localhost) (gcc version 4.1.1 (Gentoo 4.1.1)) #1 Thu Nov 2 19:37:38 EST 2006
On node 0 totalpages: 34816
  DMA zone: 34816 pages, LIFO batch:7
  DMA32 zone: 0 pages, LIFO batch:0
  Normal zone: 0 pages, LIFO batch:0
  HighMem zone: 0 pages, LIFO batch:0
ACPI: RSDP (v000 AMI                                   ) @ 0x00000000000fa0c0
ACPI: RSDT (v001 AMIINT VIA_K8   0x00000010 MSFT 0x00000097) @ 0x000000003fff0000
ACPI: FADT (v001 AMIINT VIA_K8   0x00000011 MSFT 0x00000097) @ 0x000000003fff0030
ACPI: MADT (v001 AMIINT VIA_K8   0x00000009 MSFT 0x00000097) @ 0x000000003fff00c0
ACPI: DSDT (v001    VIA   VIA_K8 0x00001000 MSFT 0x0100000d) @ 0x0000000000000000
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 2, version 3, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Setting APIC routing to xen
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at 50000000 (gap: 40000000:bec00000)
Built 1 zonelists
Kernel command line: root=/dev/hdb3
Initializing CPU#0
PID hash table entries: 1024 (order: 10, 32768 bytes)
Xen reported: 2000.140 MHz processor.
Console: colour VGA+ 80x25
Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
Software IO TLB enabled: 
 Aperture:     2 megabytes
 Bus range:    0x0000000005e00000 - 0x0000000006000000
 Kernel range: 0xffff8800004e0000 - 0xffff8800006e0000
PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
Memory: 122472k/139264k available (2116k kernel code, 16636k reserved, 732k data, 128k init)
Calibrating delay using timer specific routine.. 4001.15 BogoMIPS (lpj=2000578)
Mount-cache hash table entries: 256
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 1024K (64 bytes/line)
CPU: AMD Athlon(tm) 64 Processor 3200+ stepping 08
DMI 2.3 present.
Grant table initialized
NET: Registered protocol family 16
ACPI: bus type pci registered
PCI: Using configuration type 1
ACPI: Subsystem revision 20060127
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
PCI: Probing PCI hardware (bus 00)
Boot video device is 0000:01:00.0
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: Power Resource [URP1] (off)
ACPI: Power Resource [URP2] (off)
ACPI: Power Resource [FDDP] (off)
ACPI: Power Resource [LPTP] (off)
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKC] (IRQs *3 4 5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 *5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI init
pnp: PnP ACPI: found 11 devices
xen_mem: Initialising balloon driver.
SCSI subsystem initialized
usbcore: registered new driver usbfs
usbcore: registered new driver hub
PCI: Using ACPI for IRQ routing
PCI: If a device doesn't work, try "pci=routeirq".  If it helps, post a report
PCI: Bridge: 0000:00:01.0
  IO window: 9000-9fff
  MEM window: cfe00000-cfefffff
  PREFETCH window: bfd00000-cfcfffff
PCI: Setting latency timer of device 0000:00:01.0 to 64
IA32 emulation $Id: sys_ia32.c,v 1.32 2002/03/24 13:02:28 ak Exp $
Initializing Cryptographic API
io scheduler noop registered
io scheduler deadline registered (default)
io scheduler cfq registered
Linux agpgart interface v0.101 (c) Dave Jones
PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
Xen virtual console successfully installed as ttyS0
Event-channel device installed.
blkif_init: reqs=64, pages=704, mmap_vstart=0xffff880007800000
Uniform Multi-Platform E-IDE driver Revision: 
7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller at PCI slot 0000:00:0f.1
GSI 16 sharing vector 0xA9 and IRQ 16
ACPI: PCI Interrupt 0000:00:0f.1[A] -> GSI 20 (level, low) -> IRQ 16
PCI: VIA IRQ fixup for 0000:00:0f.1, from 255 to 0
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt8237 (rev 00) IDE UDMA133 controller on pci0000:00:0f.1
    ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:pio, hdb:DMA
    ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:DMA, hdd:DMA
Probing IDE interface ide0...
hdb: HDS722525VLAT80, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
hdc: OEM CD-ROM F563E, ATAPI CD/DVD-ROM drive
hdd: DVD-RW IDE1008, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hdb: max request size: 512KiB
hdb: 390721968 sectors (200049 MB) w/7938KiB Cache, CHS=24321/255/63, UDMA(100)
hdb: cache flushes supported
 hdb: hdb1 hdb2 hdb3 hdb4 < hdb5 >
hdc: ATAPI 52X CD-ROM drive, 128kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
hdd: ATAPI 40X DVD-ROM DVD-R CD-R/RW drive, 2048kB Cache, UDMA(33)
libata version 
1.20 loaded.
sata_promise 0000:00:0d.0: version 1.03
GSI 17 sharing vector 0xB1 and IRQ 17
ACPI: PCI Interrupt 0000:00:0d.0[A] -> GSI 17 (level, low) -> IRQ 17
ata1: SATA max UDMA/133 cmd 0xFFFFC20000002200 ctl 0xFFFFC20000002238 bmdma 0x0 irq 17
ata2: SATA max UDMA/133 cmd 0xFFFFC20000002280 ctl 0xFFFFC200000022B8 bmdma 0x0 irq 17
ata1: SATA link down (SStatus 0)
scsi0 : sata_promise
ata2: SATA link down (SStatus 0)
scsi1 : sata_promise
GSI 18 sharing vector 0xB9 and IRQ 18
ACPI: PCI Interrupt 0000:00:10.4[C] -> GSI 21 (level, low) -> IRQ 18
ehci_hcd 0000:00:10.4: EHCI Host Controller
ehci_hcd 0000:00:10.4: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:10.4
: irq 18, io mem 0xcfffed00
ehci_hcd 0000:00:10.4: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 8 ports detected
USB Universal Host Controller Interface driver 
v2.3
hub 1-0:1.0: over-current change on port 5
ACPI: PCI Interrupt 0000:00:10.0[A] -> GSI 21 (level, low) -> IRQ 18
PCI: VIA IRQ fixup for 0000:00:10.0, from 11 to 2
uhci_hcd 0000:00:10.0: UHCI Host Controller
uhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:10.0: irq 18, io base 0x0000b400
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0
: 2 ports detected
hub 1-0:1.0: over-current change on port 6
ACPI: PCI Interrupt 0000:00:10.1[A] -> GSI 21 (level, low) -> IRQ 18
PCI: VIA IRQ fixup for 0000:00:10.1, from 11 to 2
uhci_hcd 0000:00:10.1: UHCI Host Controller
uhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:10.1: irq 18, io base 0x0000b800
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
hub 3-0:1.0
: 2 ports detected
hub 1-0:1.0: over-current change on port 7
ACPI: PCI Interrupt 0000:00:10.2[B] -> GSI 21 (level, low) -> IRQ 18
PCI: VIA IRQ fixup for 0000:00:10.2, from 10 to 2
uhci_hcd 0000:00:10.2: UHCI Host Controller
uhci_hcd 0000:00:10.2: new USB bus registered, assigned bus number 4
uhci_hcd 0000:00:10.2: irq 18, io base 0x0000bc00
usb usb4: configuration #1 chosen from 1 choice
hub 4-0:1.0: USB hub found
hub 4-0:1.0
: 2 ports detected
hub 1-0:1.0: over-current change on port 8
ACPI: PCI Interrupt 0000:00:10.3[B] -> GSI 21 (level, low) -> IRQ 18
PCI: VIA IRQ fixup for 0000:00:10.3, from 10 to 2
uhci_hcd 0000:00:10.3: UHCI Host Controller
uhci_hcd 0000:00:10.3: new USB bus registered, assigned bus number 5
uhci_hcd 0000:00:10.3: irq 18, io base 0x0000c000
usb usb5: configuration #1 chosen from 1 choice
hub 5-0:1.0: USB hub found
hub 5-0:1.0
: 2 ports detected
mice: PS/2 mouse device common for all mice
device-mapper: 4.5.0-ioctl (2005-10-04) initialised: dm-devel@xxxxxxxxxx
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 2, 16384 bytes)
TCP established hash table entries: 8192 (order: 4, 65536 bytes)
TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
TCP reno registered
IPv4 over IPv4 tunneling driver
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 15
input: AT Translated Set 2 keyboard as /class/input/input0
ReiserFS: hdb3: found reiserfs format "3.6" with standard journal
ReiserFS: hdb3: using ordered data mode
ReiserFS: hdb3: journal params: device hdb3, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: hdb3: checking transaction log (hdb3)
ReiserFS: hdb3: Using r5 hash to sort names
VFS: Mounted root (reiserfs filesystem).
input: PS/2 Generic Mouse as /class/input/input1
r8169 Gigabit Ethernet driver 
2.2LK loaded
GSI 19 sharing vector 0xC1 and IRQ 19
ACPI: PCI Interrupt 0000:00:0b.0[A] -> GSI 16 (level, low) -> IRQ 19
eth0: Identified chip type is 'RTL8169s/8110s'.
eth0: RTL8169 at 0xffffc20000160f00, 00:0c:76:b3:3d:7e, IRQ 19


Clearly, the non-xen regular kernel detects the PATA whereas the xen kernel does not.  Any thoughts?
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