Re: [Xen-users] RE: RedHat DomU hanging

[Charlie Farinella <cfarinella@xxxxxxxxxxxxxxxxxxxxxxxx>]

On Wednesday 05 November 2008, AZZOPARDI Konrad wrote:
>  Hello,
> 
> Maybe someone can help me.... I have a guest XEN image that ran well 
until today. I use an LVM partition to host the guest and today on Dom0 
I added another LVM to be available to this domU.

Forgive the top posting.

I have had very similar issues in a very similar scenario.  I have 
searched the web for a solution and asked here to no avail.
I had about 8 virtual servers running Xen on 2 host machines at one 
point but because of this issue have reduced it to 4, moving the others 
to VMWare images until I can sort out what I've done wrong that would 
create this problem.  I also cannot install new file based domU's, they 
also hang mid-install.

If anyone out there knows what can cause this, I'd love to hear about 
it.  My servers are all CentOS 5 based running a 2.6.18-53.1.14.el5xen 
i686 kernel.

--charlie

> This were all the commands I issued :
> 
> On hypervisor 
> 
> lvcreate -n lintra02data -L 30G rootvg
>  
> vi /etc/xen/lintra02 and add volume to file like this :
> disk = 
[ 
"phy:/dev/mapper/rootvg-lintra02,xvda,w","phy:/dev/mapper/rootvg-lintra02data,xvdb,w"
 ]
> 
> Reboot virtual machine
>  
> On lintra02
>  
> pvcreate /dev/xvdb
> vgcreate datavg /dev/xvdb
> lvcreate --extents 100%VG -n lv_data1 datavg
>  
> 
> mkfs.ext3 /dev/datavg/lv_data1
>  
> created /data folder
> edit fstab and added /data 
> 
> 
> When I rebooted the machine again , unfortunately the guest gets stuck 
here :
> 
> Started domain lintra02
> Bootdata ok (command line is  ro root=/dev/rootvg/lv_root rhgb)
> Linux version 2.6.18-53.1.13.el5xen 
(brewbuilder@xxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.1.2 20070626 
(Red Hat 4.1.2-14)) #1 SMP Mon Feb 11 13:41:50 EST 2008
> BIOS-provided physical RAM map:
>  Xen: 0000000000000000 - 0000000030800000 (usable)
> No mptable found.
> Built 1 zonelists.  Total pages: 198656
> Kernel command line:  ro root=/dev/rootvg/lv_root rhgb
> Initializing CPU#0
> PID hash table entries: 4096 (order: 12, 32768 bytes)
> Xen reported: 2792.578 MHz processor.
> Console: colour dummy device 80x25
> Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
> Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
> Software IO TLB disabled
> Memory: 758016k/794624k available (2357k kernel code, 27720k reserved, 
1326k data, 172k init)
> Calibrating delay using timer specific routine.. 6983.67 BogoMIPS 
(lpj=13967358)
> Security Framework v1.0.0 initialized
> SELinux:  Initializing.
> selinux_register_security:  Registering secondary module capability
> Capability LSM initialized as secondary
> 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: Physical Processor ID: 0
> CPU: Processor Core ID: 0
> (SMP-)alternatives turned off
> Brought up 1 CPUs
> checking if image is initramfs... it is
> Grant table initialized
> NET: Registered protocol family 16
> ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread 3E7A0 could 
not acquire Mutex [2] [20060707]
> ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread 3E7A0 could 
not acquire Mutex [2] [20060707]
> Initializing CPU#1
> migration_cost=880
> Brought up 2 CPUs
> PCI: setting up Xen PCI frontend stub
> ACPI: Interpreter disabled.
> Linux Plug and Play Support v0.97 (c) Adam Belay
> pnp: PnP ACPI: disabled
> xen_mem: Initialising balloon driver.
> usbcore: registered new driver usbfs
> usbcore: registered new driver hub
> PCI: System does not support PCI
> PCI: System does not support PCI
> NetLabel: Initializing
> NetLabel:  domain hash size = 128
> NetLabel:  protocols = UNLABELED CIPSOv4
> NetLabel:  unlabeled traffic allowed by default
> NET: Registered protocol family 2
> IP route cache hash table entries: 32768 (order: 6, 262144 bytes)
> TCP established hash table entries: 131072 (order: 9, 2097152 bytes)
> TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
> TCP: Hash tables configured (established 131072 bind 65536)
> TCP reno registered
> audit: initializing netlink socket (disabled)
> audit(1225909559.099:1): initialized
> VFS: Disk quotas dquot_6.5.1
> Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> Initializing Cryptographic API
> ksign: Installing public key data
> Loading keyring
> - Added public key F3D873412BBC54B9
> - User ID: Red Hat, Inc. (Kernel Module GPG key)
> io scheduler noop registered
> io scheduler anticipatory registered
> io scheduler deadline registered
> io scheduler cfq registered (default)
> pci_hotplug: PCI Hot Plug PCI Core version: 0.5
> rtc: IRQ 8 is not free.
> Non-volatile memory driver v1.2
> Linux agpgart interface v0.101 (c) Dave Jones
> RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize
> Xen virtual console successfully installed as xvc0
> Event-channel device installed.
> Console: switching to colour frame buffer device 100x37
> input: Xen Virtual Keyboard/Mouse as /class/input/input0
> Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
> ide: Assuming 50MHz system bus speed for PIO modes; override with 
idebus=xx
> ide-floppy driver 0.99.newide
> usbcore: registered new driver hiddev
> usbcore: registered new driver usbhid
> drivers/usb/input/hid-core.c: v2.6:USB HID core driver
> PNP: No PS/2 controller found. Probing ports directly.
> i8042.c: No controller found.
> mice: PS/2 mouse device common for all mice
> md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
> md: bitmap version 4.39
> TCP bic registered
> Initializing IPsec netlink socket
> NET: Registered protocol family 1
> NET: Registered protocol family 17
> XENBUS: Device with no driver: device/vbd/51712
> XENBUS: Device with no driver: device/vbd/51728
> XENBUS: Device with no driver: device/vif/0
> Write protecting the kernel read-only data: 445k
> USB Universal Host Controller Interface driver v3.0
> Registering block device major 202
>  xvda: xvda1 xvda2
>  xvdb: unknown partition table
> device-mapper: ioctl: 4.11.0-ioctl (2006-09-14) initialised: 
dm-devel@xxxxxxxxxx
> kjournald starting.  Commit interval 5 seconds
> EXT3-fs: mounted filesystem with ordered data mode.
> SELinux:  Disabled at runtime.
> audit(1225909563.751:2): selinux=0 auid=4294967295
> 
> If someone has any hints I would appreciate, thanks
> 
> Konrad



-- 
------------------------------------------------------------------------
Charles Farinella 
Appropriate Solutions, Inc. (www.AppropriateSolutions.com)
cfarinella@xxxxxxxxxxxxxxxxxxxxxxxx
voice: 603.924.6079   fax: 603.924.8668


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