[Xen-users] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(3, 1)

[Julien TOUCHE <julien.touche@xxxxxxxxx>]

i'm currently trying to install xen 2.0.6 on debian sarge/x86. i take
package from "deb http://www.option-c.com/debian unstable main"
+ tools

i boot xen dom0 with the following in grub menu.lst

title           Xen 2.0
root            (hd0,1)
kernel          /xen.gz dom0_mem=65536 noacpi max_loop=32 com1=19200,8n1
module          /xen-linux-2.6.11-ocxen0 root=/dev/hda1 ro 
console=ttyS0,19200 console=tty0
module          /initrd.img-2.6.11-ocxen0

===
  Booting 'Xen 2.0'

root            (hd0,1)
 Filesystem type is ext2fs, partition type 0x83
kernel          /xen.gz dom0_mem=65536 noacpi max_loop=32 com1=19200,8n1
   [Multiboot-elf, <0x100000:0x3f070:0x35f90>, shtab=0x175078, 
entry=0x100000]
module          /xen-linux-2.6.11-ocxen0 root=/dev/hda5 ro 
console=ttyS0,19200
console=tty0
   [Multiboot-module @ 0x176000, 0x3fc808 bytes]
module  /initrd.img-2.6.11-ocxen0
   [Multiboot-module @ 0x573000, 0xfa000 bytes]

 __  __            ____    ___   __
 \ \/ /___ _ __   |___ \  / _ \ / /_
  \  // _ \ '_ \    __) || | | | '_ \
  /  \  __/ | | |  / __/ | |_| | (_) |
 /_/\_\___|_| |_| |_____(_)___(_)___/

 http://www.cl.cam.ac.uk/netos/xen
 University of Cambridge Computer Laboratory

 Xen version 2.0.6 (root@[unknown]) (gcc version 3.3.5 (Debian 
1:3.3.5-13)) Mon
Jun 13 23:39:47 UTC 2005
 Latest ChangeSet: information unavailable

(XEN) Physical RAM map:
(XEN)  0000000000000000 - 00000000000a0000 (usable)
(XEN)  00000000000f0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 0000000010000000 (usable)
(XEN)  00000000ffff0000 - 0000000100000000 (reserved)
(XEN) System RAM: 255MB (261760kB)
(XEN) Xen heap: 10MB (10788kB)
(XEN) CPU0: Before vendor init, caps: 0183f9ff 00000000 00000000, vendor = 0
(XEN) CPU caps: 0183f9ff 00000000 00000000 00000000
(XEN) Using scheduler: Borrowed Virtual Time (bvt)
(XEN) Initializing CPU#0
(XEN) Detected 300.689 MHz processor.
(XEN) Local APIC disabled by BIOS -- reenabling.
(XEN) Found and enabled local APIC!
(XEN) CPU0: Before vendor init, caps: 0183fbff 00000000 00000000, vendor = 0
(XEN) CPU caps: 0183fbff 00000000 00000000 00000000
(XEN) CPU0 booted
(XEN) SMP motherboard not detected.
(XEN) enabled ExtINT on CPU#0
(XEN) ESR value before enabling vector: 00000000
(XEN) ESR value after enabling vector: 00000000
(XEN) Using local APIC timer interrupts.
(XEN) Calibrating APIC timer for CPU0...
(XEN) ..... CPU speed is 300.6919 MHz.
(XEN) ..... Bus speed is 66.8202 MHz.
(XEN) ..... bus_scale = 0x0000446D
(XEN) Time init:
(XEN) .... System Time: 20002673ns
(XEN) .... cpu_freq:    00000000:11EC27F8
(XEN) .... scale:       00000003:53607A81
(XEN) .... Wall Clock:  1120402538s 60000us
(XEN) PCI: PCI BIOS revision 2.10 entry at 0xfb380, last bus=1
(XEN) PCI: Using configuration type 1
(XEN) PCI: Probing PCI hardware
(XEN) PCI: Probing PCI hardware (bus 00)
(XEN) PCI: Using IRQ router PIIX/ICH [8086/7110] at 00:07.0
(XEN) Limiting direct PCI/PCI transfers.
(XEN) mtrr: v2.0 (20020519)
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen-ELF header found: 
'GUEST_OS=linux,GUEST_VER=2.6,XEN_VER=2.0,VIRT_BASE=
0xC0000000,LOADER=generic,PT_MODE_WRITABLE'
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Kernel image:  00c00000->00ffc808
(XEN)  Initrd image:  00ffd000->010f7000
(XEN)  Dom0 alloc.:   01400000->05400000
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: c0100000->c0532044
(XEN)  Init. ramdisk: c0533000->c062d000
(XEN)  Phys-Mach map: c062d000->c063d000
(XEN)  Page tables:   c063d000->c0640000
(XEN)  Start info:    c0640000->c0641000
(XEN)  Boot stack:    c0641000->c0642000
(XEN)  TOTAL:         c0000000->c0800000
(XEN)  ENTRY ADDRESS: c0100000
(XEN) Scrubbing DOM0 RAM: .done.
(XEN) Initrd len 0xfa000, start at 0xc0533000
(XEN) Scrubbing Free RAM: ...done.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch 
input to Xen
).
Linux version 2.6.11-ocxen0 (root@debian_build) (gcc version 3.3.5 
(Debian 1:3.3
.5-13)) #1 Thu Jun 16 15:44:37 UTC 2005
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000004000000 (usable)
0MB HIGHMEM available.
64MB LOWMEM available.
DMI 2.3 present.
IRQ lockup detection disabled
Allocating PCI resources starting at 04000000 (gap: 04000000:fc000000)
Built 1 zonelists
Kernel command line: root=/dev/hda5 ro console=ttyS0,19200 console=tty0
Initializing CPU#0
PID hash table entries: 512 (order: 9, 8192 bytes)
Xen reported: 300.689 MHz processor.
Using tsc for high-res timesource
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: c4800000-fb7fe000, maxmem 34000000
Memory: 59360k/65536k available (2944k kernel code, 6084k reserved, 894k 
data, 2
04k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 128K
CPU: Intel Celeron (Mendocino) stepping 00
Enabling fast FPU save and restore... done.
Checking 'hlt' instruction... disabled
checking if image is initramfs...it isn't (bad gzip magic numbers); 
looks like a
n initrd
Freeing initrd memory: 1000k freed
NET: Registered protocol family 16
PCI: Using configuration type Xen
xen_mem: Initialising balloon driver.
SCSI subsystem initialized
usbcore: registered new driver hub
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
PCI: Probing PCI hardware (bus 01)
PCI: Probing PCI hardware
IA-32 Microcode Update Driver: v1.14-xen <tigran@xxxxxxxxxxx>
Initializing Cryptographic API
Limiting direct PCI/PCI transfers.
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
HP CISS Driver (v 2.6.4)
Intel(R) PRO/1000 Network Driver - version 5.6.10.1-k2
Copyright (c) 1999-2004 Intel Corporation.
pcnet32.c:v1.30i 06.28.2004 tsbogend@xxxxxxxxxxxxxxxx
e100: Intel(R) PRO/100 Network Driver, 3.3.6-k2-NAPI
e100: Copyright(c) 1999-2004 Intel Corporation
8139too Fast Ethernet driver 0.9.27
(XEN) PCI: Found IRQ 10 for device 00:0d.0
PCI: Obtained IRQ 10 for device 0000:00:0d.0
eth0: RealTek RTL8139 at 0xa800, 00:50:fc:1f:1f:52, IRQ 10
Xen virtual console successfully installed as ttyS
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
PIIX4: IDE controller at PCI slot 0000:00:07.1
PIIX4: chipset revision 1
PIIX4: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:DMA, hdd:DMA
hda: IBM-DJNA-351520, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hdc: CRD-8322B, ATAPI CD/DVD-ROM drive
hdd: SONY CD-RW CRX160E, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 128KiB
hda: 30033360 sectors (15377 MB) w/430KiB Cache, CHS=29795/16/63, UDMA(33)
 hda: hda1 hda2 hda3 < hda5 hda6 hda7 hda8 hda9 hda10 hda11 hda12 >
hdc: ATAPI 32X CD-ROM drive, 128kB Cache, DMA
Uniform CD-ROM driver Revision: 3.20
hdd: ATAPI 32X CD-ROM CD-R/RW drive, 4096kB Cache, UDMA(33)
Red Hat/Adaptec aacraid driver (1.1.2-lk2 Jun 16 2005)
3ware Storage Controller device driver for Linux v1.26.02.000.
Fusion MPT base driver 3.01.18
Copyright (c) 1999-2004 LSI Logic Corporation
Fusion MPT SCSI Host driver 3.01.18
USB Universal Host Controller Interface driver v2.2
(XEN) PCI: Found IRQ 12 for device 00:07.2
(XEN) PCI: Sharing IRQ 12 with 00:09.0
PCI: Obtained IRQ 12 for device 0000:00:07.2
uhci_hcd 0000:00:07.2: UHCI Host Controller
uhci_hcd 0000:00:07.2: irq 12, io base 0xa000
uhci_hcd 0000:00:07.2: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
mice: PS/2 mouse device common for all mice
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :   554.800 MB/sec
   8regs_prefetch:   466.000 MB/sec
   32regs    :   278.400 MB/sec
   32regs_prefetch:   261.600 MB/sec
   pII_mmx   :   466.000 MB/sec
   p5_mmx    :   486.000 MB/sec
raid5: using function: 8regs (554.800 MB/sec)
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@xxxxxxxxxx
NET: Registered protocol family 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.
RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 1000KiB [1 disk] into ram disk... done.
Kernel panic - not syncing: VFS: Unable to mount root fs on 
unknown-block(3,1)
 (XEN) Domain 0 shutdown: rebooting machine.
===

# mount
/dev/hda1 on / type ext3 (rw,errors=remount-ro)
proc on /proc type proc (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/hda2 on /boot type ext3 (rw,noexec,nosuid,nodev)
/dev/hda5 on /usr type ext3 (rw,nodev)
/dev/hda6 on /tmp type ext3 (rw,noexec,nosuid,nodev)
/dev/hda7 on /home type ext3 (rw,nosuid,nodev)
/dev/hda8 on /var type ext3 (rw,nosuid,nodev)
/dev/hda9 on /var/log type ext3 (rw,noexec,nosuid,nodev)
usbfs on /proc/bus/usb type usbfs (rw)

i've checked xen-users archive but
$ egrep -in ext3 /boot/config-2.6.11-ocxen0
1003:CONFIG_EXT3_FS=y
1004:CONFIG_EXT3_FS_XATTR=y
1005:# CONFIG_EXT3_FS_POSIX_ACL is not set
1006:# CONFIG_EXT3_FS_SECURITY is not set

any ideas ?

thanks
Regards

                Julien

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