[Xen-users] Boot failure of DomU in Dom0 with software Raid1 configuration - Debian Squeeze

["Marc Ulfig" <m.ulfig@xxxxxxxxxxxxx>]

Hi all,

i have a strange problem getting DomU's running on my Dom0.

As you can see the DomU stops booting, because the /dev/xvda2 is not found. 
Instead it tries to
mount a Raid partion.

System: Debian Squeeze (last update and upgrade todoay) amd64
HDD: in Software Raid 1
Here is my mount:
/dev/md1 on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
/dev/md0 on /boot type ext3 (rw)
/dev/md3 on /data type ext3 (rw,grpquota,usrquota)
rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
nfsd on /proc/fs/nfsd type nfsd (rw)
xenfs on /proc/xen type xenfs (rw)

This is the console output:
zeus:~# xm create -c dns.shadownet.local.cfg
Using config file "/etc/xen/dns.shadownet.local.cfg".
Started domain dns.shadownet.local (id=16)
                                          [    0.000000] Initializing cgroup 
subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.32-5-xen-amd64 (Debian 2.6.32-38) 
(ben@xxxxxxxxxxxxxxx) (gcc
version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Mon Oct 3 07:53:54 UTC 2011
[    0.000000] Command line: root=/dev/xvda2 ro
[    0.000000] KERNEL supported cpus:
[    0.000000]   Intel GenuineIntel
[    0.000000]   AMD AuthenticAMD
[    0.000000]   Centaur CentaurHauls
[    0.000000] Atom PSE erratum detected, BIOS microcode update recommended
[    0.000000] ACPI in unprivileged domain disabled
[    0.000000] released 0 pages of unused memory
[    0.000000] BIOS-provided physical RAM map:
[    0.000000]  Xen: 0000000000000000 - 00000000000a0000 (usable)
[    0.000000]  Xen: 00000000000a0000 - 0000000000100000 (reserved)
[    0.000000]  Xen: 0000000000100000 - 0000000008000000 (usable)
[    0.000000] DMI not present or invalid.
[    0.000000] last_pfn = 0x8000 max_arch_pfn = 0x400000000
[    0.000000] init_memory_mapping: 0000000000000000-0000000008000000
[    0.000000] RAMDISK: 016b9000 - 021db000
[    0.000000] No NUMA configuration found
[    0.000000] Faking a node at 0000000000000000-0000000008000000
[    0.000000] Bootmem setup node 0 0000000000000000-0000000008000000
[    0.000000]   NODE_DATA [0000000000032000 - 0000000000039fff]
[    0.000000]   bootmap [000000000003a000 -  000000000003afff] pages 1
[    0.000000] (7 early reservations) ==> bootmem [0000000000 - 0008000000]
[    0.000000]   #0 [0000000000 - 0000001000]   BIOS data page ==> [0000000000 
- 0000001000]
[    0.000000]   #1 [000221e000 - 0002233000]   XEN PAGETABLES ==> [000221e000 
- 0002233000]
[    0.000000]   #2 [0000006000 - 0000008000]       TRAMPOLINE ==> [0000006000 
- 0000008000]
[    0.000000]   #3 [0001000000 - 0001698b14]    TEXT DATA BSS ==> [0001000000 
- 0001698b14]
[    0.000000]   #4 [00016b9000 - 00021db000]          RAMDISK ==> [00016b9000 
- 00021db000]
[    0.000000]   #5 [00021db000 - 000221e000]   XEN START INFO ==> [00021db000 
- 000221e000]
[    0.000000]   #6 [0000008000 - 0000032000]          PGTABLE ==> [0000008000 
- 0000032000]
[    0.000000] Zone PFN ranges:
[    0.000000]   DMA      0x00000000 -> 0x00001000
[    0.000000]   DMA32    0x00001000 -> 0x00100000
[    0.000000]   Normal   0x00100000 -> 0x00100000
[    0.000000] Movable zone start PFN for each node
[    0.000000] early_node_map[2] active PFN ranges
[    0.000000]     0: 0x00000000 -> 0x000000a0
[    0.000000]     0: 0x00000100 -> 0x00008000
[    0.000000] SFI: Simple Firmware Interface v0.7 http://simplefirmware.org
[    0.000000] SMP: Allowing 1 CPUs, 0 hotplug CPUs
[    0.000000] No local APIC present
[    0.000000] APIC: disable apic facility
[    0.000000] PM: Registered nosave memory: 00000000000a0000 - 0000000000100000
[    0.000000] Allocating PCI resources starting at 8000000 (gap: 
8000000:f8000000)
[    0.000000] Booting paravirtualized kernel on Xen
[    0.000000] Xen version: 4.0.1 (preserve-AD)
[    0.000000] NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:1 nr_node_ids:1
[    0.000000] PERCPU: Embedded 30 pages/cpu @ffff880002269000 s90328 r8192 
d24360 u122880
[    0.000000] pcpu-alloc: s90328 r8192 d24360 u122880 alloc=30*4096
[    0.000000] pcpu-alloc: [0] 0
[    0.000000] Xen: using vcpu_info placement
[    0.000000] Built 1 zonelists in Node order, mobility grouping on.  Total 
pages: 32179
[    0.000000] Policy zone: DMA32
[    0.000000] Kernel command line: root=/dev/xvda2 ro
[    0.000000] PID hash table entries: 512 (order: 0, 4096 bytes)
[    0.000000] Initializing CPU#0
[    0.000000] Checking aperture...
[    0.000000] No AGP bridge found
[    0.000000] Memory: 109796k/131072k available (3149k kernel code, 384k 
absent, 20892k reserved,
1906k data, 604k init)
[    0.000000] SLUB: Genslabs=14, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, 
Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS:4352 nr_irqs:512
[    0.000000] Console: colour dummy device 80x25
[    0.000000] console [tty0] enabled
[    0.000000] console [hvc0] enabled
[    0.000000] installing Xen timer for CPU 0
[    0.000000] Detected 1596.114 MHz processor.
[    0.004000] Calibrating delay loop (skipped), value calculated using timer 
frequency.. 3192.22
BogoMIPS (lpj=6384456)
[    0.004000] Security Framework initialized
[    0.004000] SELinux:  Disabled at boot.
[    0.004000] Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.004000] Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
[    0.004000] Mount-cache hash table entries: 256
[    0.004000] Initializing cgroup subsys ns
[    0.004000] Initializing cgroup subsys cpuacct
[    0.004000] Initializing cgroup subsys devices
[    0.004000] Initializing cgroup subsys freezer
[    0.004000] Initializing cgroup subsys net_cls
[    0.004000] Atom PSE erratum detected, BIOS microcode update recommended
[    0.004000] CPU: L1 I cache: 32K, L1 D cache: 24K
[    0.004000] CPU: L2 cache: 512K
[    0.004000] CPU 0/0x2 -> Node 0
[    0.004000] CPU: Unsupported number of siblings 4
[    0.004000] Performance Events: unsupported p6 CPU model 28 no PMU driver, 
software events only.
[    0.004000] SMP alternatives: switching to UP code
[    0.004470] Freeing SMP alternatives: 28k freed
[    0.005199] Brought up 1 CPUs
[    0.005717] devtmpfs: initialized
[    0.011877] Grant table initialized
[    0.011910] regulator: core version 0.5
[    0.012123] NET: Registered protocol family 16
[    0.013920] PCI: setting up Xen PCI frontend stub
[    0.015770] bio: create slab <bio-0> at 0
[    0.016087] ACPI: Interpreter disabled.
[    0.016225] xen_balloon: Initialising balloon driver with page order 0.
[    0.016404] vgaarb: loaded
[    0.016658] PCI: System does not support PCI
[    0.016680] PCI: System does not support PCI
[    0.016950] Switching to clocksource xen
[    0.020608] pnp: PnP ACPI: disabled
[    0.021540] NET: Registered protocol family 2
[    0.021774] IP route cache hash table entries: 1024 (order: 1, 8192 bytes)
[    0.022444] TCP established hash table entries: 4096 (order: 4, 65536 bytes)
[    0.022573] TCP bind hash table entries: 4096 (order: 4, 65536 bytes)
[    0.022635] TCP: Hash tables configured (established 4096 bind 4096)
[    0.022660] TCP reno registered
[    0.022870] NET: Registered protocol family 1
[    0.023062] Unpacking initramfs...
[    0.055829] Freeing initrd memory: 11400k freed
[    0.068252] platform rtc_cmos: registered platform RTC device (no PNP device 
found)
[    0.068915] audit: initializing netlink socket (disabled)
[    0.068967] type=2000 audit(1318184071.697:1): initialized
[    0.075245] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    0.080385] VFS: Disk quotas dquot_6.5.2
[    0.080598] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.080877] msgmni has been set to 236
[    0.081601] alg: No test for stdrng (krng)
[    0.081810] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 
253)
[    0.081843] io scheduler noop registered
[    0.081861] io scheduler anticipatory registered
[    0.081880] io scheduler deadline registered
[    0.082013] io scheduler cfq registered (default)
[    0.098841] registering netback
[    0.104653] Linux agpgart interface v0.103
[    0.104784] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.105463] input: Macintosh mouse button emulation as 
/devices/virtual/input/input0
[    0.105643] PNP: No PS/2 controller found. Probing ports directly.
[    0.108030] i8042.c: No controller found.
[    0.121563] mice: PS/2 mouse device common for all mice
[    0.121894] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0
[    0.122112] cpuidle: using governor ladder
[    0.122135] cpuidle: using governor menu
[    0.122176] No iBFT detected.
[    0.122974] TCP cubic registered
[    0.123382] NET: Registered protocol family 10
[    0.125376] Mobile IPv6
[    0.125408] NET: Registered protocol family 17
[    0.125780] registered taskstats version 1
[    0.125831] XENBUS: Device with no driver: device/vbd/51714
[    0.125852] XENBUS: Device with no driver: device/vbd/51713
[    0.125872] XENBUS: Device with no driver: device/vif/0
[    0.125890] XENBUS: Device with no driver: device/console/0
[    0.125950]
/build/buildd-linux-2.6_2.6.32-38-amd64-bk66e4/linux-2.6-2.6.32/debian/build/source_amd64_xen/drivers/rtc/hctosys.c:
unable to open rtc device (rtc0)
[    0.126068] Initalizing network drop monitor service
[    0.126354] Freeing unused kernel memory: 604k freed
[    0.126893] Write protecting the kernel read-only data: 4332k
Loading, please wait...
^[OR[    0.276422] udev[49]: starting version 164
Begin: Loading essential drivers ... [    0.546050] SCSI subsystem initialized
done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... 
Begin: Loading[   
0.660984] md: raid1 personality registered for level 1
Success: loaded module raid1.
done.
Begin: Assembling all MD arrays ... mdadm: No devices listed in conf file were 
found.
Failure: failed to assemble all arrays.
done.
[    0.706149] device-mapper: uevent: version 1.0.3
[    0.708372] device-mapper: ioctl: 4.15.0-ioctl (2009-04-01) initialised: 
dm-devel@xxxxxxxxxx
done.
Begin: Waiting for root file system ... done.
Gave up waiting for root device.  Common problems:
 - Boot args (cat /proc/cmdline)
   - Check rootdelay= (did the system wait long enough?)
   - Check root= (did the system wait for the right device?)
 - Missing modules (cat /proc/modules; ls /dev)
ALERT!  /dev/xvda2 does not exist.  Dropping to a shell!


I found in this list some inspiration where to look at. But none helped me 
soliving this problem.

A testsystem on an old 32bit system with same Debian Version runs well.

Is here someone who can help me with an idea?

greetz from Germany
Marc



_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users