SATA detect fails on ICH7 chipset / Dell Poweredge SC430

[Chris Bainbridge <chris.bainbridge@gmail.com>]

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Hi,

I have a Dell Poweredge SC420 and a SC430. The SC420 has an ICH6
chipset and works ok with Xen. The SC430 has an ICH7 chipset and the
SATA detection fails. I've tried 2.6.11.10 and 2.6.12.5 kernels, with
Xen 2.0.7, Xen-testing and Xen-unstable, all with the same results.
I'm using the same hypervisor and kernel binaries, so problems with
the compiler environment etc. have been ruled out.

Boot logs attached from Xen-unstable on 2.6.12.5 kernel. Any fixes
would be welcome :-)

Cheers,
Chris

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Linux version 2.6.12.5-xen (root@xenmaster) (gcc version 3.4.4 (Gentoo 3.4.4, ssp-3.4.4-1.0, pie-8.7.8)) #2 Mon Aug 29 18:56:29 GMT 2005
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000006000000 (usable)
0MB HIGHMEM available.
96MB LOWMEM available.
found SMP MP-table at 000fe710
DMI 2.3 present.
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x01] disabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x07] disabled)
ACPI: LAPIC_NMI (acpi_id[0xff] high level lint[0x1])
ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 8, version 32, 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 high level)
Enabling APIC mode:  Flat.  Using 1 I/O APICs
Using ACPI (MADT) for SMP configuration information
IRQ lockup detection disabled
Allocating PCI resources starting at 06000000 (gap: 06000000:fa000000)
Built 1 zonelists
Kernel command line: root=/dev/md1 noreboot console=ttyS0
Initializing CPU#0
PID hash table entries: 512 (order: 9, 8192 bytes)
Xen reported: 2793.128 MHz processor.
Console: colour VGA+ 80x25
Linux version 2.6.12.5-xen (root@xenmaster) (gcc version 3.4.4 (Gentoo 3.4.4, ssp-3.4.4-1.0, pie-8.7.8)) #2 Mon Aug 29 18:56:29 GMT 2005
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000006000000 (usable)
0MB HIGHMEM available.
96MB LOWMEM available.
found SMP MP-table at 000fe710
DMI 2.3 present.
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x01] disabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x07] disabled)
ACPI: LAPIC_NMI (acpi_id[0xff] high level lint[0x1])
ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 8, version 32, 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 high level)
Enabling APIC mode:  Flat.  Using 1 I/O APICs
Using ACPI (MADT) for SMP configuration information
IRQ lockup detection disabled
Allocating PCI resources starting at 06000000 (gap: 06000000:fa000000)
Built 1 zonelists
Kernel command line: root=/dev/md1 noreboot console=ttyS0
Initializing CPU#0
PID hash table entries: 512 (order: 9, 8192 bytes)
Xen reported: 2793.128 MHz processor.
Console: colour VGA+ 80x25
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
vmalloc area: c6800000-fb7fe000, maxmem 34000000
Memory: 94208k/98304k available (1931k kernel code, 4048k reserved, 618k data, 140k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Mount-cache hash table entries: 512
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz stepping 01
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... disabled
ENABLING IO-APIC IRQs
NET: Registered protocol family 16
PCI: Using MMCONFIG
ACPI: Subsystem revision 20050309
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
PCI: Probing PCI hardware (bus 00)
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
PCI: Transparent bridge - 0000:00:1e.0
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11 12 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 9 *10 11 12 15)
ACPI: PCI Interrupt Link [LNKC] (IRQs *3 4 5 6 7 9 10 11 12 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 9 10 11 12 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 *5 6 7 9 10 11 12 15)
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 *9 10 11 12 15)
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 *5 6 7 9 10 11 12 15)
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 *10 11 12 15)
xen_mem: Initialising balloon driver.
SCSI subsystem initialized
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
Grant table initialized
IA-32 Microcode Update Driver: v1.14-xen <tigran@veritas.com>
Simple Boot Flag value 0x87 read from CMOS RAM was invalid
Simple Boot Flag at 0x7a set to 0x1
ACPI: PCI Interrupt 0000:00:01.0[A] -> GSI 16 (level, low) -> IRQ 16
assign_interrupt_mode Found MSI capability
ACPI: PCI Interrupt 0000:00:1c.0[A] -> GSI 16 (level, low) -> IRQ 16
assign_interrupt_mode Found MSI capability
ACPI: PCI Interrupt 0000:00:1c.1[B] -> GSI 17 (level, low) -> IRQ 17
assign_interrupt_mode Found MSI capability
Linux agpgart interface v0.101 (c) Dave Jones
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing disabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 16 (level, low) -> IRQ 16
ttyS4: detected caps 00000700 should be 00000100
ttyS4 at I/O 0xd820 (irq = 16) is a 16C950/954
ttyS5: detected caps 00000700 should be 00000100
ttyS5 at I/O 0xd828 (irq = 16) is a 16C950/954
ttyS6: detected caps 00000700 should be 00000100
ttyS6 at I/O 0xd830 (irq = 16) is a 16C950/954
ttyS7: detected caps 00000700 should be 00000100
ttyS7 at I/O 0xd838 (irq = 16) is a 16C950/954
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
tg3.c:v3.31 (June 8, 2005)
ACPI: PCI Interrupt 0000:02:00.0[A] -> GSI 16 (level, low) -> IRQ 16
eth0: Tigon3 [partno(BCM95751) rev 4001 PHY(5750)] (PCIX:100MHz:32-bit) 10/100/1000BaseT Ethernet 00:11:11:cc:66:d1
eth0: RXcsums[1] LinkChgREG[1] MIirq[1] ASF[0] Split[0] WireSpeed[1] TSOcap[1]
eth0: dma_rwctrl[76180000]
WARNING: Failed to register Xen virtual console driver as 'ttyS0'
Event-channel device installed.
Initialising Xen netif backend
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH6: IDE controller at PCI slot 0000:00:1f.1
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 16 (level, low) -> IRQ 16
ICH6: chipset revision 3
ICH6: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:pio
hda: GCR-8483B, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ACPI: PCI Interrupt 0000:00:1f.2[C] -> GSI 20 (level, low) -> IRQ 20
ahci(0000:00:1f.2) AHCI 0001.0000 32 slots 4 ports 1.5 Gbps 0xf impl IDE mode
ahci(0000:00:1f.2) flags: 64bit ncq pm led slum part
ata1: SATA max UDMA/133 cmd 0xC6804D00 ctl 0x0 bmdma 0x0 irq 20
ata2: SATA max UDMA/133 cmd 0xC6804D80 ctl 0x0 bmdma 0x0 irq 20
ata3: SATA max UDMA/133 cmd 0xC6804E00 ctl 0x0 bmdma 0x0 irq 20
ata4: SATA max UDMA/133 cmd 0xC6804E80 ctl 0x0 bmdma 0x0 irq 20
ata1: dev 0 ATA, max UDMA/133, 156250000 sectors:
ata1: dev 0 configured for UDMA/133
scsi0 : ahci
ata2: dev 0 ATA, max UDMA/133, 160086528 sectors:
ata2: dev 0 configured for UDMA/133
scsi1 : ahci
ata3: no device found (phy stat 00000000)
scsi2 : ahci
ata4: no device found (phy stat 00000000)
scsi3 : ahci
  Vendor: ATA       Model: Maxtor 6Y080M0    Rev: YAR5
  Type:   Direct-Access                      ANSI SCSI revision: 05
  Vendor: ATA       Model: Maxtor 6Y080M0    Rev: YAR5
  Type:   Direct-Access                      ANSI SCSI revision: 05
SCSI device sda: 156250000 512-byte hdwr sectors (80000 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 156250000 512-byte hdwr sectors (80000 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sdb: 160086528 512-byte hdwr sectors (81964 MB)
SCSI device sdb: drive cache: write back
SCSI device sdb: 160086528 512-byte hdwr sectors (81964 MB)
SCSI device sdb: drive cache: write back
 sdb: sdb1 sdb2 sdb3
Attached scsi disk sdb at scsi1, channel 0, id 0, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 0
Attached scsi generic sg1 at scsi1, channel 0, id 0, lun 0,  type 0
USB Universal Host Controller Interface driver v2.2
ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 21 (level, low) -> IRQ 21
uhci_hcd 0000:00:1d.0: UHCI Host Controller
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 1
uhci_hcd 0000:00:1d.0: irq 21, io base 0x0000ff80
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 22 (level, low) -> IRQ 22
uhci_hcd 0000:00:1d.1: UHCI Host Controller
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:1d.1: irq 22, io base 0x0000ff60
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 18
uhci_hcd 0000:00:1d.2: UHCI Host Controller
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:1d.2: irq 18, io base 0x0000ff40
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.3[D] -> GSI 23 (level, low) -> IRQ 23
uhci_hcd 0000:00:1d.3: UHCI Host Controller
uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 4
uhci_hcd 0000:00:1d.3: irq 23, io base 0x0000ff20
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
mice: PS/2 mouse device common for all mice
md: raid1 personality registered as nr 3
md: md driver 0.90.1 MAX_MD_DEVS=256, MD_SB_DISKS=27
device-mapper: 4.4.0-ioctl (2005-01-12) initialised: dm-devel@redhat.com
NET: Registered protocol family 2
input: AT Translated Set 2 keyboard on isa0060/serio0
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
NET: Registered protocol family 1
NET: Registered protocol family 17
Bridge firewalling registered
md: Autodetecting RAID arrays.
md: autorun ...
md: considering sdb3 ...
md:  adding sdb3 ...
md: sdb1 has different UUID to sdb3
md:  adding sda3 ...
md: sda1 has different UUID to sdb3
md: created md1
md: bind<sda3>
md: bind<sdb3>
md: running: <sdb3><sda3>
raid1: raid set md1 active with 2 out of 2 mirrors
md: considering sdb1 ...
md:  adding sdb1 ...
md:  adding sda1 ...
md: created md0
md: bind<sda1>
md: bind<sdb1>
md: running: <sdb1><sda1>
raid1: raid set md0 active with 2 out of 2 mirrors
md: ... autorun DONE.
ReiserFS: md1: found reiserfs format "3.6" with standard journal

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Linux version 2.6.12.5-xen (root@xenmaster) (gcc version 3.4.4 (Gentoo 3.4.4, ssp-3.4.4-1.0, pie-8.7.8)) #2 Mon Aug 29 18:56:29 GMT 2005
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000006000000 (usable)
0MB HIGHMEM available.
96MB LOWMEM available.
found SMP MP-table at 000fe710
DMI 2.3 present.
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x06] disabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x07] disabled)
ACPI: LAPIC_NMI (acpi_id[0xff] high level lint[0x1])
ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 8, version 32, 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 high level)
Enabling APIC mode:  Flat.  Using 1 I/O APICs
Using ACPI (MADT) for SMP configuration information
IRQ lockup detection disabled
Allocating PCI resources starting at 06000000 (gap: 06000000:fa000000)
Built 1 zonelists
Kernel command line: root=/dev/md2 noreboot console=ttyS0
Initializing CPU#0
PID hash table entries: 512 (order: 9, 8192 bytes)
Xen reported: 2793.130 MHz processor.
Console: colour VGA+ 80x25
Linux version 2.6.12.5-xen (root@xenmaster) (gcc version 3.4.4 (Gentoo 3.4.4, ssp-3.4.4-1.0, pie-8.7.8)) #2 Mon Aug 29 18:56:29 GMT 2005
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000006000000 (usable)
0MB HIGHMEM available.
96MB LOWMEM available.
found SMP MP-table at 000fe710
DMI 2.3 present.
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x06] disabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x07] disabled)
ACPI: LAPIC_NMI (acpi_id[0xff] high level lint[0x1])
ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 8, version 32, 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 high level)
Enabling APIC mode:  Flat.  Using 1 I/O APICs
Using ACPI (MADT) for SMP configuration information
IRQ lockup detection disabled
Allocating PCI resources starting at 06000000 (gap: 06000000:fa000000)
Built 1 zonelists
Kernel command line: root=/dev/md2 noreboot console=ttyS0
Initializing CPU#0
PID hash table entries: 512 (order: 9, 8192 bytes)
Xen reported: 2793.130 MHz processor.
Console: colour VGA+ 80x25
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
vmalloc area: c6800000-fb7fe000, maxmem 34000000
Memory: 94208k/98304k available (1931k kernel code, 4048k reserved, 618k data, 140k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Mount-cache hash table entries: 512
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz stepping 01
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... disabled
ENABLING IO-APIC IRQs
NET: Registered protocol family 16
PCI: Using MMCONFIG
ACPI: Subsystem revision 20050309
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
PCI: Probing PCI hardware (bus 00)
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
PCI: Transparent bridge - 0000:00:1e.0
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11 12 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 9 *10 11 12 15)
ACPI: PCI Interrupt Link [LNKC] (IRQs *3 4 5 6 7 9 10 11 12 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 9 10 11 12 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 *5 6 7 9 10 11 12 15)
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 *9 10 11 12 15)
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 *5 6 7 9 10 11 12 15)
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 *10 11 12 15)
xen_mem: Initialising balloon driver.
SCSI subsystem initialized
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
Grant table initialized
IA-32 Microcode Update Driver: v1.14-xen <tigran@veritas.com>
Simple Boot Flag at 0x7a set to 0x1
ACPI: PCI Interrupt 0000:00:01.0[A] -> GSI 16 (level, low) -> IRQ 16
assign_interrupt_mode Found MSI capability
ACPI: PCI Interrupt 0000:00:1c.0[A] -> GSI 16 (level, low) -> IRQ 16
assign_interrupt_mode Found MSI capability
ACPI: PCI Interrupt 0000:00:1c.4[A] -> GSI 16 (level, low) -> IRQ 16
assign_interrupt_mode Found MSI capability
ACPI: PCI Interrupt 0000:00:1c.5[B] -> GSI 17 (level, low) -> IRQ 17
assign_interrupt_mode Found MSI capability
Linux agpgart interface v0.101 (c) Dave Jones
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing disabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
tg3.c:v3.31 (June 8, 2005)
ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 17 (level, low) -> IRQ 17
eth0: Tigon3 [partno(BCM95751) rev 4001 PHY(5750)] (PCIX:100MHz:32-bit) 10/100/1000BaseT Ethernet 00:12:3f:71:ed:be
eth0: RXcsums[1] LinkChgREG[1] MIirq[1] ASF[0] Split[0] WireSpeed[1] TSOcap[1]
eth0: dma_rwctrl[76180000]
WARNING: Failed to register Xen virtual console driver as 'ttyS0'
Event-channel device installed.
Initialising Xen netif backend
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH7: IDE controller at PCI slot 0000:00:1f.1
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 16 (level, low) -> IRQ 16
ICH7: chipset revision 1
ICH7: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:pio
hda: HL-DT-STDVD-ROM GDR8163B, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ata_piix: probe of 0000:00:1f.2 failed with error -12
USB Universal Host Controller Interface driver v2.2
ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 21 (level, low) -> IRQ 21
uhci_hcd 0000:00:1d.0: UHCI Host Controller
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 1
uhci_hcd 0000:00:1d.0: irq 21, io base 0x0000ff80
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 22 (level, low) -> IRQ 22
uhci_hcd 0000:00:1d.1: UHCI Host Controller
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:1d.1: irq 22, io base 0x0000ff60
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 18
uhci_hcd 0000:00:1d.2: UHCI Host Controller
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:1d.2: irq 18, io base 0x0000ff40
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.3[D] -> GSI 23 (level, low) -> IRQ 23
uhci_hcd 0000:00:1d.3: UHCI Host Controller
uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 4
uhci_hcd 0000:00:1d.3: irq 23, io base 0x0000ff20
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
mice: PS/2 mouse device common for all mice
md: raid1 personality registered as nr 3
md: md driver 0.90.1 MAX_MD_DEVS=256, MD_SB_DISKS=27
device-mapper: 4.4.0-ioctl (2005-01-12) initialised: dm-devel@redhat.com
NET: Registered protocol family 2
usb 4-1: new low speed USB device using uhci_hcd and address 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
NET: Registered protocol family 1
NET: Registered protocol family 17
Bridge firewalling registered
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
VFS: Cannot open root device "md2" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

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