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Re: [Xen-devel] Unable to boot dom0 - Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)

To: James Bulpin <james@xxxxxxxxxxxxx>
From: David F Barrera <dfbp@xxxxxxxxxx>
Date: Thu, 02 Feb 2006 10:43:05 -0600
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Thu, 02 Feb 2006 16:53:15 +0000
List-id: Xen developer discussion <xen-devel.lists.xensource.com>



James Bulpin wrote:

I don't see any obvious looking block device being found. What diskhardware are you using? Is the new default config enabling its driver?

The new default config is probably not enabling the drivers. There areseveral types of machines, and the old default configs had the driversenabled. A couple of machines have LSI53C1030 devices. Can you set thedefault configs the way they were before?


James

David F Barrera wrote:

I am unable to boot dom0 on any on my machines today, using changeset8729. This is happening in both x86 and x86_64, SLES 9 and FC4 basedplatforms. I will pull latest source and rebuild just in case it hasalready been fixed.



ACPI: IOAPIC (id[0x0e] address[0xfec01000] gsi_base[35])
IOAPIC[1]: apic_id 14, version 17, address 0xfec01000, GSI 35-70
ACPI: IOAPIC (id[0x0d] address[0xfec02000] gsi_base[70])
IOAPIC[2]: apic_id 13, version 17, address 0xfec02000, GSI 70-105
ACPI: IOAPIC (id[0x0c] address[0xfec03000] gsi_base[105])
IOAPIC[3]: apic_id 12, version 17, address 0xfec03000, GSI 105-140
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 8 global_irq 8 low edge)
ACPI: INT_SRC_OVR (bus 0 bus_irq 14 global_irq 14 low edge)
Setting APIC routing to xen
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at ea000000 (gap: e8000000:16c00000)
Built 1 zonelists

Kernel command line: ro root=/dev/sda2 adp94xx=attach_HostRAID:1console=ttyS0, 115200

Initializing CPU#0
PID hash table entries: 4096 (order: 12, 131072 bytes)
Xen reported: 3000.002 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)
Software IO TLB enabled:
Aperture:     64 megabytes
Bus range:    0x000000000c000000 - 0x0000000010000000
Kernel range: 0xffff88000216c000 - 0xffff88000616c000

Memory: 931584k/1032192k available (3457k kernel code, 99972kreserved, 1330k data, 292k init)Calibrating delay using timer specific routine.. 7508.64 BogoMIPS(lpj=15017281)

Mount-cache hash table entries: 256
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: L3 cache: 8192K
CPU:                Intel(R) Xeon(TM) MP CPU 3.00GHz stepping 01
Grant table initialized
NET: Registered protocol family 16
ACPI: bus type pci registered
PCI: Using configuration type 1
ACPI: Subsystem revision 20050902
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [VP00] (0000:00)
PCI: Ignoring BAR0-3 of IDE controller 0000:00:0f.1
ACPI: PCI Root Bridge [VP01] (0000:01)
ACPI: PCI Root Bridge [VP02] (0000:02)
ACPI: PCI Root Bridge [VP03] (0000:04)
ACPI: PCI Root Bridge [VP04] (0000:06)
ACPI: PCI Root Bridge [VP05] (0000:08)
ACPI: PCI Root Bridge [VP06] (0000:0a)
ACPI: PCI Root Bridge [VP07] (0000:0c)

ACPI: PCI Root Bridge [VP10] (0000:0e)
ACPI: PCI Root Bridge [VP11] (0000:0f)
ACPI: PCI Root Bridge [VP12] (0000:10)
ACPI: PCI Root Bridge [VP13] (0000:12)
ACPI: PCI Root Bridge [VP14] (0000:14)
ACPI: PCI Root Bridge [VP15] (0000:16)
ACPI: PCI Root Bridge [VP16] (0000:18)
ACPI: PCI Root Bridge [VP17] (0000:1a)
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, posta report

IA-32 Microcode Update Driver: v1.14-xen <tigran@xxxxxxxxxxx>
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 anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
Real Time Clock Driver v1.12
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
floppy0: no floppy controllers found
RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
loop: loaded (max 8 devices)
HP CISS Driver (v 2.6.8)
Intel(R) PRO/1000 Network Driver - version 6.1.16-k2
Copyright (c) 1999-2005 Intel Corporation.
pcnet32.c:v1.31c 01.Nov.2005 tsbogend@xxxxxxxxxxxxxxxx
e100: Intel(R) PRO/100 Network Driver, 3.4.14-k4-NAPI
e100: Copyright(c) 1999-2005 Intel Corporation
tg3.c:v3.47 (Dec 28, 2005)
GSI 16 sharing vector 0xA9 and IRQ 16
ACPI: PCI Interrupt 0000:01:01.0[A] -> GSI 24 (level, low) -> IRQ 16

eth0: Tigon3 [partno(BCM95704A6) rev 2100 PHY(5704)](PCIX:66MHz:64-bit) 10/100/1000BaseT Ethernet 00:14:5e:1b:03:e2eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] Split[0] WireSpeed[1]TSOcap[0]

eth0: dma_rwctrl[769f0000]
GSI 17 sharing vector 0xB1 and IRQ 17
ACPI: PCI Interrupt 0000:01:01.1[B] -> GSI 28 (level, low) -> IRQ 17

eth1: Tigon3 [partno(BCM95704A6) rev 2100 PHY(5704)](PCIX:66MHz:64-bit) 10/100/1000BaseT Ethernet 00:14:5e:1b:03:e3eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] Split[0] WireSpeed[1]TSOcap[1]

eth1: dma_rwctrl[769f0000]
GSI 18 sharing vector 0xB9 and IRQ 18
ACPI: PCI Interrupt 0000:0f:01.0[A] -> GSI 94 (level, low) -> IRQ 18

eth2: Tigon3 [partno(BCM95704A6) rev 2100 PHY(5704)](PCIX:66MHz:64-bit) 10/100/1000BaseT Ethernet 00:14:5e:1b:03:62eth2: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] Split[0] WireSpeed[1]TSOcap[0]

eth2: dma_rwctrl[769f0000]
GSI 19 sharing vector 0xC1 and IRQ 19
ACPI: PCI Interrupt 0000:0f:01.1[B] -> GSI 98 (level, low) -> IRQ 19

eth3: Tigon3 [partno(BCM95704A6) rev 2100 PHY(5704)](PCIX:66MHz:64-bit) 10/100/1000BaseT Ethernet 00:14:5e:1b:03:63eth3: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] Split[0] WireSpeed[1]TSOcap[1]

eth3: dma_rwctrl[769f0000]
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk@xxxxxxxxxxxx>
Xen virtual console successfully installed as ttyS0
Event-channel device installed.
blkif_init: reqs=64, pages=704, mmap_vstart=0xffff88003e400000
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2

ide: Assuming 33MHz system bus speed for PIO modes; override withidebus=xx

SvrWks CSB6: IDE controller at PCI slot 0000:00:0f.1
SvrWks CSB6: chipset revision 160
SvrWks CSB6: not 100% native mode: will probe irqs later
   ide0: BM-DMA at 0x0700-0x0707, BIOS settings: hda:DMA, hdb:DMA
SvrWks CSB6: simplex device: DMA disabled
ide1: SvrWks CSB6 Bus-Master DMA disabled (BIOS)
hda: HL-DT-STDVD-ROM GDR8082N, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: ATAPI 24X DVD-ROM drive, 256kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
Adaptec aacraid driver (1.1-4 Feb  2 2006 06:37:35)
3ware Storage Controller device driver for Linux v1.26.02.001.
usbmon: debugfs is not available
GSI 20 sharing vector 0xC9 and IRQ 20
ACPI: PCI Interrupt 0000:00:03.0[A] -> GSI 20 (level, low) -> IRQ 20
ohci_hcd 0000:00:03.0: OHCI Host Controller
ohci_hcd 0000:00:03.0: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:03.0: irq 20, io mem 0xf3410000
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:03.1[B] -> GSI 20 (level, low) -> IRQ 20
ohci_hcd 0000:00:03.1: OHCI Host Controller
ohci_hcd 0000:00:03.1: new USB bus registered, assigned bus number 2
ohci_hcd 0000:00:03.1: irq 20, io mem 0xf3411000
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
GSI 21 sharing vector 0xD1 and IRQ 21
ACPI: PCI Interrupt 0000:0e:03.0[A] -> GSI 90 (level, low) -> IRQ 21
ohci_hcd 0000:0e:03.0: OHCI Host Controller
ohci_hcd 0000:0e:03.0: new USB bus registered, assigned bus number 3
ohci_hcd 0000:0e:03.0: irq 21, io mem 0xf8000000
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:0e:03.1[B] -> GSI 90 (level, low) -> IRQ 21
ohci_hcd 0000:0e:03.1: OHCI Host Controller
ohci_hcd 0000:0e:03.1: new USB bus registered, assigned bus number 4
ohci_hcd 0000:0e:03.1: irq 21, io mem 0xf8001000
usb 2-1: new full speed USB device using ohci_hcd and address 2
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
USB Universal Host Controller Interface driver v2.3
input: IBM PPC I/F as /class/input/input0
input: USB HID v1.10 Keyboard [IBM PPC I/F] on usb-0000:00:03.1-1
input: IBM PPC I/F as /class/input/input1
input: USB HID v1.10 Mouse [IBM PPC I/F] on usb-0000:00:03.1-1
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
mice: PS/2 mouse device common for all mice
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: multipath personality registered as nr 7
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
device-mapper: 4.4.0-ioctl (2005-01-12) initialised: dm-devel@xxxxxxxxxx
device-mapper: dm-multipath version 1.0.4 loaded
device-mapper: dm-round-robin version 1.0.0 loaded
device-mapper: dm-emc version 0.0.3 loaded
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
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
input: AT Translated Set 2 keyboard as /class/input/input2
Bridge firewalling registered
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
Root-NFS: No NFS server available, giving up.
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Insert root floppy and press ENTER
usb 4-1: new full speed USB device using ohci_hcd and address 2
input: IBM PPC I/F as /class/input/input3
input: USB HID v1.10 Keyboard [IBM PPC I/F] on usb-0000:0e:03.1-1
input: IBM PPC I/F as /class/input/input4
input: USB HID v1.10 Mouse [IBM PPC I/F] on usb-0000:0e:03.1-1

VFS: Cannot open root device "sda2" or unknown-block(2,0)
Please append a correct "root=" boot option

Kernel panic - not syncing: VFS: Unable to mount root fs onunknown-block(2,0)


--
Regards,

David F Barrera
Linux Technology Center
Systems and Technology Group, IBM

"The wisest men follow their own direction. "
                                                       Euripides




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References:
- [Xen-devel] Unable to boot dom0 - Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
  - From: David F Barrera
- Re: [Xen-devel] Unable to boot dom0 - Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
  - From: James Bulpin

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