Hi, i created a domU MAchine (debian Sarge)on an lvm patition under Xen3 with actual kernel 2.6.12. This worked verry well and fast. I decided to move this domU to an other machine running Xen 2.0.7. After copying the lvm on this machine and creating the config file I booted this domU up with Kernle 2.6.11.12 which seems to be the most actual kernel fpr xen2.0.7 in a domU. My Problem ist that the domU is verrrrry slow it need more than 4 Minutes to boot into a debian base system. And starting an application is quiete impossible with this week performance. To be shure that xen dom0 works fine I created a new domU on this machine with an lvm drive an a debian base system. This works verry well an fast... Has someone any idea what causes this problem? Or how I can fix it? Here are my logfiles: Greetings Armin xen-server:~# xm dmesg ERROR: cannot use unconfigured serial port COM1 __ __ ____ ___ _____ \ \/ /___ _ __ |___ \ / _ \|___ | \ // _ \ ''_ \ __) || | | | / / / \ __/ | | | / __/ | |_| | / / /_/\_\___|_| |_| |_____(_)___(_)_/ http://www.cl.cam.ac.uk/netos/xen University of Cambridge Computer Laboratory Xen version 2.0.7 (root@localdomain) (gcc-Version 3.3.5 (Debian 1:3.3.5-13)) Mo Apr 10 18:14:49 CEST 2006 Latest ChangeSet: (XEN) Physical RAM map: (XEN) 0000000000000000 - 000000000009fc00 (usable) (XEN) 000000000009fc00 - 00000000000a0000 (reserved) (XEN) 00000000000e0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 000000007fff0000 (usable) (XEN) 000000007fff0000 - 000000007ffff000 (ACPI data) (XEN) 000000007ffff000 - 0000000080000000 (ACPI NVS) (XEN) 00000000ffb80000 - 0000000100000000 (reserved) (XEN) System RAM: 2047MB (2096700kB) (XEN) Xen heap: 10MB (10732kB) (XEN) CPU0: Before vendor init, caps: bfebfbff 00000000 00000000, vendor = 0 (XEN) CPU#0: Physical ID: 0, Logical ID: 0 (XEN) CPU caps: bfebfbff 00000000 00000000 00000000 (XEN) found SMP MP-table at 000ff780 (XEN) ACPI: RSDP (v002 ACPIAM ) @ 0x000f6fb0 (XEN) ACPI: XSDT (v001 A M I OEMXSDT 0x04000429 MSFT 0x00000097) @ 0x7fff0100 (XEN) ACPI: FADT (v003 A M I OEMFACP 0x04000429 MSFT 0x00000097) @ 0x7fff0200 (XEN) ACPI: MADT (v001 A M I OEMAPIC 0x04000429 MSFT 0x00000097) @ 0x7fff0300 (XEN) ACPI: OEMB (v001 A M I OEMBIOS 0x04000429 MSFT 0x00000097) @ 0x7ffff040 (XEN) ACPI: DSDT (v001 PSCHL PSCHL017 0x00000017 INTL 0x02002026) @ 0x00000000 (XEN) ACPI: Local APIC address 0xfee00000 (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) (XEN) Processor #0 Unknown CPU [15:3] APIC version 20 (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled) (XEN) Processor #1 Unknown CPU [15:3] APIC version 20 (XEN) ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1]) (XEN) Using ACPI for processor (LAPIC) configuration information (XEN) Intel MultiProcessor Specification v1.4 (XEN) Virtual Wire compatibility mode. (XEN) OEM ID: TEMPLATE Product ID: PSCH-L APIC at: 0xFEE00000 (XEN) I/O APIC #2 Version 32 at 0xFEC00000. (XEN) I/O APIC #3 Version 32 at 0xFEC10000. (XEN) Enabling APIC mode: Flat. Using 2 I/O APICs (XEN) Processors: 2 (XEN) Using scheduler: Borrowed Virtual Time (bvt) (XEN) Initializing CPU#0 (XEN) Detected 2992.627 MHz processor. (XEN) CPU0: Before vendor init, caps: bfebfbff 00000000 00000000, vendor = 0 (XEN) CPU#0: Physical ID: 0, Logical ID: 0 (XEN) CPU caps: bfebfbff 00000000 00000000 00000000 (XEN) CPU0 booted (XEN) enabled ExtINT on CPU#0 (XEN) ESR value before enabling vector: 00000000 (XEN) ESR value after enabling vector: 00000000 (XEN) Booting processor 1/1 eip 90000 (XEN) Initializing CPU#1 (XEN) masked ExtINT on CPU#1 (XEN) ESR value before enabling vector: 00000000 (XEN) ESR value after enabling vector: 00000000 (XEN) CPU1: Before vendor init, caps: bfebfbff 00000000 00000000, vendor = 0 (XEN) CPU#1: Physical ID: 0, Logical ID: 1 (XEN) CPU caps: bfebfbff 00000000 00000000 00000000 (XEN) CPU1 has booted. (XEN) Total of 2 processors activated. (XEN) ENABLING IO-APIC IRQs (XEN) Setting 2 in the phys_id_present_map (XEN) ...changing IO-APIC physical APIC ID to 2 ... ok. (XEN) Setting 3 in the phys_id_present_map (XEN) ...changing IO-APIC physical APIC ID to 3 ... ok. (XEN) init IO_APIC IRQs (XEN) ..TIMER: vector=0x41 pin1=2 pin2=0 (XEN) Using local APIC timer interrupts. (XEN) Calibrating APIC timer for CPU0... (XEN) ..... CPU speed is 2992.5230 MHz. (XEN) ..... Bus speed is 199.5014 MHz. (XEN) ..... bus_scale = 0x0000CC4F (XEN) checking TSC synchronization across CPUs: passed. (XEN) Time init: (XEN) .... System Time: 20001009ns (XEN) .... cpu_freq: 00000000:B25FDF2C (XEN) .... scale: 00000001:562C9A1B (XEN) .... Wall Clock: 1144690464s 130000us (XEN) PCI: PCI BIOS revision 2.10 entry at 0xf0031, last bus=4 (XEN) PCI: Using configuration type 1 (XEN) PCI: Probing PCI hardware (XEN) PCI: Probing PCI hardware (bus 00) (XEN) PCI: Ignoring BAR0-3 of IDE controller 00:1f.1 (XEN) Transparent bridge - PCI device 8086:244e (XEN) PCI: Using IRQ router default [8086/25a1] at 00:1f.0 (XEN) PCI->APIC IRQ transform: (B0,I29,P0) -> 16 (XEN) PCI->APIC IRQ transform: (B0,I29,P1) -> 19 (XEN) PCI->APIC IRQ transform: (B0,I29,P3) -> 23 (XEN) PCI->APIC IRQ transform: (B0,I31,P0) -> 18 (XEN) PCI->APIC IRQ transform: (B0,I31,P1) -> 17 (XEN) PCI->APIC IRQ transform: (B1,I1,P0) -> 18 (XEN) PCI->APIC IRQ transform: (B2,I3,P0) -> 25 (XEN) PCI->APIC IRQ transform: (B2,I5,P0) -> 27 (XEN) PCI->APIC IRQ transform: (B3,I4,P0) -> 24 (XEN) PCI->APIC IRQ transform: (B3,I4,P1) -> 25 (XEN) PCI->APIC IRQ transform: (B3,I6,P0) -> 26 (XEN) PCI->APIC IRQ transform: (B3,I6,P1) -> 27 (XEN) PCI->APIC IRQ transform: (B4,I4,P0) -> 20 (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=generi c,PT_MODE_WRITABLE'' (XEN) PHYSICAL MEMORY ARRANGEMENT: (XEN) Kernel image: 00c00000->0104a87c (XEN) Initrd image: 00000000->00000000 (XEN) Dom0 alloc.: 01400000->11400000 (XEN) VIRTUAL MEMORY ARRANGEMENT: (XEN) Loaded kernel: c0100000->c057ffc4 (XEN) Init. ramdisk: c0580000->c0580000 (XEN) Phys-Mach map: c0580000->c05c0000 (XEN) Page tables: c05c0000->c05c3000 (XEN) Start info: c05c3000->c05c4000 (XEN) Boot stack: c05c4000->c05c5000 (XEN) TOTAL: c0000000->c0800000 (XEN) ENTRY ADDRESS: c0100000 (XEN) Scrubbing DOM0 RAM: ...done. (XEN) Scrubbing Free RAM: .....................done. (XEN) *** Serial input -> DOM0 (type ''CTRL-a'' three times to switch input to Xen). xen-server:/srv/xen# cat bootlog radius1 Linux version 2.6.11.12-xenU (root@xen-server) (gcc-Version 3.3.5 (Debian 1:3.3. 5-13)) #1 Mon Apr 10 17:40:41 CEST 2006 BIOS-provided physical RAM map: Xen: 0000000000000000 - 0000000019000000 (usable) 400MB LOWMEM available. DMI not present. IRQ lockup detection disabled Allocating PCI resources starting at 19000000 (gap: 19000000:e7000000) Built 1 zonelists Kernel command line: root=/dev/sda ro 4 Initializing CPU#0 PID hash table entries: 2048 (order: 11, 32768 bytes) Xen reported: 2992.627 MHz processor. Using tsc for high-res timesource Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) vmalloc area: d9800000-fbff9000, maxmem 34000000 Memory: 402560k/409600k available (1631k kernel code, 6756k reserved, 439k data, 112k 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: Trace cache: 12K uops, L1 D cache: 16K CPU: L2 cache: 1024K CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 04 Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Checking ''hlt'' instruction... disabled NET: Registered protocol family 16 xen_mem: Initialising balloon driver. Initializing Cryptographic API io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize Xen virtual console successfully installed as tty Event-channel device installed. xen_blk: Initialising virtual block device driver sda:<6>xen_net: Initialising virtual ethernet driver. unknown partition table NET: Registered protocol family 2 IP: routing cache hash table of 4096 buckets, 32Kbytes TCP established hash table entries: 16384 (order: 5, 131072 bytes) TCP bind hash table entries: 16384 (order: 4, 65536 bytes) TCP: Hash tables configured (established 16384 bind 16384) NET: Registered protocol family 1 NET: Registered protocol family 17 EXT3-fs: INFO: recovery required on readonly filesystem. EXT3-fs: write access will be enabled during recovery. EXT3-fs: recovery complete. kjournald starting. Commit interval 5 seconds EXT3-fs: mounted filesystem with ordered data mode. VFS: Mounted root (ext3 filesystem) readonly. Freeing unused kernel memory: 112k freed INIT: version 2.86 booting Activating swap. EXT3 FS on sda, internal journal hwclock is unable to get I/O port access: the iopl(3) call failed. System time was Mon Apr 10 19:12:48 UTC 2006. Setting the System Clock using the Hardware Clock as reference... hwclock is unable to get I/O port access: the iopl(3) call failed. System Clock set. System local time is now Mon Apr 10 19:12:48 UTC 2006. Cleaning up ifupdown...done. Checking all file systems... fsck 1.37 (21-Mar-2005) WARNING: Your /etc/fstab does not contain the fsck passno field. I will kludge around things for you, but you should fix your /etc/fstab file as soon as you can. Setting kernel variables ... ... done. Mounting local filesystems... Cleaning /tmp /var/run /var/lock. Running 0dns-down to make sure resolv.conf is ok...done. Setting up networking...done. Setting up IP spoofing protection: rp_filter. Configuring network interfaces...done. Setting the System Clock using the Hardware Clock as reference... hwclock is unable to get I/O port access: the iopl(3) call failed. System Clock set. Local time: Mon Apr 10 21:12:49 CEST 2006 Initializing random number generator...done. Recovering nvi editor sessions... done. Setting up X server socket directory /tmp/.X11-unix...done. Setting up ICE socket directory /tmp/.ICE-unix...done. INIT: Entering runlevel: 4 Starting system log daemon: syslogd. Starting kernel log daemon: klogd. Starting OpenLDAP: running BDB recovery, slapd slurpd. Starting MTA: ^[[Aexim4. Starting internet superserver: inetd. Starting OpenBSD Secure Shell server: sshd. Starting FreeRADIUS daemon: Mon Apr 10 21:15:51 2006 : Info: Starting - reading configuration files ... freeradius. Starting deferred execution scheduler: atd. Starting periodic command scheduler: cron. Debian GNU/Linux 3.1 radius1 tty1 xen-server:/srv/xen# xen-server:~# cat /srv/xen/radius1 # -*- mode: python; -*- #==========================================================================# Python configuration setup for ''xm create''. # This script sets the parameters used when a domain is created using ''xm create''. # You use a separate script for each domain you want to create, or # you can set the parameters for the domain on the xm command line. #========================================================================== #--------------------------------------------------------------------------- - # Kernel image file. kernel = "/boot/vmlinuz-2.6.11.12-xenU" # Optional ramdisk. #ramdisk = "/boot/initrd.gz" # The domain build function. Default is ''linux''. #builder=''linux'' # Initial memory allocation (in megabytes) for the new domain. memory = 400 # A name for your domain. All domains must have different names. name = "radius1" # Which CPU to start domain on? #cpu = -1 # leave to Xen to pick #--------------------------------------------------------------------------- - # Define network interfaces. # Number of network interfaces. Default is 1. nics=1 # Optionally define mac and/or bridge for the network interfaces. # Random MACs are assigned if not given. #vif = [ ''''] vif = [ ''mac=aa:00:00:00:1b:11, bridge=xen-br0'' ] #--------------------------------------------------------------------------- - # Define the disk devices you want the domain to have access to, and # what you want them accessible as. # Each disk entry is of the form phy:UNAME,DEV,MODE # where UNAME is the device, DEV is the device name the domain will see, # and MODE is r for read-only, w for read-write. disk = [ ''phy:volg1/radius1,sda,w'' ] #--------------------------------------------------------------------------- - # Set the kernel command line for the new domain. # You only need to define the IP parameters and hostname if the domain''s # IP config doesn''t, e.g. in ifcfg-eth0 or via DHCP. # You can use ''extra'' to set the runlevel and custom environment # variables used by custom rc scripts (e.g. VMID=, usr= ). # Set if you want dhcp to allocate the IP address. #dhcp="dhcp" # Set netmask. #netmask# Set default gateway. #gateway# Set the hostname. #hostname= "vm%d" % vmid # Set root device. root = "/dev/sda ro" # Root device for nfs. #root = "/dev/nfs" # The nfs server. #nfs_server = ''169.254.1.0'' # Root directory on the nfs server. #nfs_root = ''/full/path/to/root/directory'' # Sets runlevel 4. extra = "4" #--------------------------------------------------------------------------- - # Set according to whether you want the domain restarted when it exits. # The default is ''onreboot'', which restarts the domain when it shuts down # with exit code reboot. # Other values are ''always'', and ''never''. #restart = ''onreboot'' #==========================================================================xen-server:~# _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi, i created a domU MAchine (debian Sarge)on an lvm patition under Xen3 with actual kernel 2.6.12. This worked verry well and fast. I decided to move this domU to an other machine running Xen 2.0.7. After copying the lvm on this machine and creating the config file I booted this domU up with Kernle 2.6.11.12 which seems to be the most actual kernel fpr xen2.0.7 in a domU. My Problem ist that the domU is verrrrry slow it need more than 4 Minutes to boot into a debian base system. And starting an application is quiete impossible with this week performance. To be shure that xen dom0 works fine I created a new domU on this machine with an lvm drive an a debian base system. This works verry well an fast... Has someone any idea what causes this problem? Or how I can fix it? Here are my logfiles: Greetings Armin xen-server:~# xm dmesg ERROR: cannot use unconfigured serial port COM1 __ __ ____ ___ _____ \ \/ /___ _ __ |___ \ / _ \|___ | \ // _ \ ''_ \ __) || | | | / / / \ __/ | | | / __/ | |_| | / / /_/\_\___|_| |_| |_____(_)___(_)_/ http://www.cl.cam.ac.uk/netos/xen University of Cambridge Computer Laboratory Xen version 2.0.7 (root@localdomain) (gcc-Version 3.3.5 (Debian 1:3.3.5-13)) Mo Apr 10 18:14:49 CEST 2006 Latest ChangeSet: (XEN) Physical RAM map: (XEN) 0000000000000000 - 000000000009fc00 (usable) (XEN) 000000000009fc00 - 00000000000a0000 (reserved) (XEN) 00000000000e0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 000000007fff0000 (usable) (XEN) 000000007fff0000 - 000000007ffff000 (ACPI data) (XEN) 000000007ffff000 - 0000000080000000 (ACPI NVS) (XEN) 00000000ffb80000 - 0000000100000000 (reserved) (XEN) System RAM: 2047MB (2096700kB) (XEN) Xen heap: 10MB (10732kB) (XEN) CPU0: Before vendor init, caps: bfebfbff 00000000 00000000, vendor = 0 (XEN) CPU#0: Physical ID: 0, Logical ID: 0 (XEN) CPU caps: bfebfbff 00000000 00000000 00000000 (XEN) found SMP MP-table at 000ff780 (XEN) ACPI: RSDP (v002 ACPIAM ) @ 0x000f6fb0 (XEN) ACPI: XSDT (v001 A M I OEMXSDT 0x04000429 MSFT 0x00000097) @ 0x7fff0100 (XEN) ACPI: FADT (v003 A M I OEMFACP 0x04000429 MSFT 0x00000097) @ 0x7fff0200 (XEN) ACPI: MADT (v001 A M I OEMAPIC 0x04000429 MSFT 0x00000097) @ 0x7fff0300 (XEN) ACPI: OEMB (v001 A M I OEMBIOS 0x04000429 MSFT 0x00000097) @ 0x7ffff040 (XEN) ACPI: DSDT (v001 PSCHL PSCHL017 0x00000017 INTL 0x02002026) @ 0x00000000 (XEN) ACPI: Local APIC address 0xfee00000 (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) (XEN) Processor #0 Unknown CPU [15:3] APIC version 20 (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled) (XEN) Processor #1 Unknown CPU [15:3] APIC version 20 (XEN) ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1]) (XEN) Using ACPI for processor (LAPIC) configuration information (XEN) Intel MultiProcessor Specification v1.4 (XEN) Virtual Wire compatibility mode. (XEN) OEM ID: TEMPLATE Product ID: PSCH-L APIC at: 0xFEE00000 (XEN) I/O APIC #2 Version 32 at 0xFEC00000. (XEN) I/O APIC #3 Version 32 at 0xFEC10000. (XEN) Enabling APIC mode: Flat. Using 2 I/O APICs (XEN) Processors: 2 (XEN) Using scheduler: Borrowed Virtual Time (bvt) (XEN) Initializing CPU#0 (XEN) Detected 2992.627 MHz processor. (XEN) CPU0: Before vendor init, caps: bfebfbff 00000000 00000000, vendor = 0 (XEN) CPU#0: Physical ID: 0, Logical ID: 0 (XEN) CPU caps: bfebfbff 00000000 00000000 00000000 (XEN) CPU0 booted (XEN) enabled ExtINT on CPU#0 (XEN) ESR value before enabling vector: 00000000 (XEN) ESR value after enabling vector: 00000000 (XEN) Booting processor 1/1 eip 90000 (XEN) Initializing CPU#1 (XEN) masked ExtINT on CPU#1 (XEN) ESR value before enabling vector: 00000000 (XEN) ESR value after enabling vector: 00000000 (XEN) CPU1: Before vendor init, caps: bfebfbff 00000000 00000000, vendor = 0 (XEN) CPU#1: Physical ID: 0, Logical ID: 1 (XEN) CPU caps: bfebfbff 00000000 00000000 00000000 (XEN) CPU1 has booted. (XEN) Total of 2 processors activated. (XEN) ENABLING IO-APIC IRQs (XEN) Setting 2 in the phys_id_present_map (XEN) ...changing IO-APIC physical APIC ID to 2 ... ok. (XEN) Setting 3 in the phys_id_present_map (XEN) ...changing IO-APIC physical APIC ID to 3 ... ok. (XEN) init IO_APIC IRQs (XEN) ..TIMER: vector=0x41 pin1=2 pin2=0 (XEN) Using local APIC timer interrupts. (XEN) Calibrating APIC timer for CPU0... (XEN) ..... CPU speed is 2992.5230 MHz. (XEN) ..... Bus speed is 199.5014 MHz. (XEN) ..... bus_scale = 0x0000CC4F (XEN) checking TSC synchronization across CPUs: passed. (XEN) Time init: (XEN) .... System Time: 20001009ns (XEN) .... cpu_freq: 00000000:B25FDF2C (XEN) .... scale: 00000001:562C9A1B (XEN) .... Wall Clock: 1144690464s 130000us (XEN) PCI: PCI BIOS revision 2.10 entry at 0xf0031, last bus=4 (XEN) PCI: Using configuration type 1 (XEN) PCI: Probing PCI hardware (XEN) PCI: Probing PCI hardware (bus 00) (XEN) PCI: Ignoring BAR0-3 of IDE controller 00:1f.1 (XEN) Transparent bridge - PCI device 8086:244e (XEN) PCI: Using IRQ router default [8086/25a1] at 00:1f.0 (XEN) PCI->APIC IRQ transform: (B0,I29,P0) -> 16 (XEN) PCI->APIC IRQ transform: (B0,I29,P1) -> 19 (XEN) PCI->APIC IRQ transform: (B0,I29,P3) -> 23 (XEN) PCI->APIC IRQ transform: (B0,I31,P0) -> 18 (XEN) PCI->APIC IRQ transform: (B0,I31,P1) -> 17 (XEN) PCI->APIC IRQ transform: (B1,I1,P0) -> 18 (XEN) PCI->APIC IRQ transform: (B2,I3,P0) -> 25 (XEN) PCI->APIC IRQ transform: (B2,I5,P0) -> 27 (XEN) PCI->APIC IRQ transform: (B3,I4,P0) -> 24 (XEN) PCI->APIC IRQ transform: (B3,I4,P1) -> 25 (XEN) PCI->APIC IRQ transform: (B3,I6,P0) -> 26 (XEN) PCI->APIC IRQ transform: (B3,I6,P1) -> 27 (XEN) PCI->APIC IRQ transform: (B4,I4,P0) -> 20 (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=generi c,PT_MODE_WRITABLE'' (XEN) PHYSICAL MEMORY ARRANGEMENT: (XEN) Kernel image: 00c00000->0104a87c (XEN) Initrd image: 00000000->00000000 (XEN) Dom0 alloc.: 01400000->11400000 (XEN) VIRTUAL MEMORY ARRANGEMENT: (XEN) Loaded kernel: c0100000->c057ffc4 (XEN) Init. ramdisk: c0580000->c0580000 (XEN) Phys-Mach map: c0580000->c05c0000 (XEN) Page tables: c05c0000->c05c3000 (XEN) Start info: c05c3000->c05c4000 (XEN) Boot stack: c05c4000->c05c5000 (XEN) TOTAL: c0000000->c0800000 (XEN) ENTRY ADDRESS: c0100000 (XEN) Scrubbing DOM0 RAM: ...done. (XEN) Scrubbing Free RAM: .....................done. (XEN) *** Serial input -> DOM0 (type ''CTRL-a'' three times to switch input to Xen). xen-server:/srv/xen# cat bootlog radius1 Linux version 2.6.11.12-xenU (root@xen-server) (gcc-Version 3.3.5 (Debian 1:3.3. 5-13)) #1 Mon Apr 10 17:40:41 CEST 2006 BIOS-provided physical RAM map: Xen: 0000000000000000 - 0000000019000000 (usable) 400MB LOWMEM available. DMI not present. IRQ lockup detection disabled Allocating PCI resources starting at 19000000 (gap: 19000000:e7000000) Built 1 zonelists Kernel command line: root=/dev/sda ro 4 Initializing CPU#0 PID hash table entries: 2048 (order: 11, 32768 bytes) Xen reported: 2992.627 MHz processor. Using tsc for high-res timesource Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) vmalloc area: d9800000-fbff9000, maxmem 34000000 Memory: 402560k/409600k available (1631k kernel code, 6756k reserved, 439k data, 112k 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: Trace cache: 12K uops, L1 D cache: 16K CPU: L2 cache: 1024K CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 04 Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Checking ''hlt'' instruction... disabled NET: Registered protocol family 16 xen_mem: Initialising balloon driver. Initializing Cryptographic API io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize Xen virtual console successfully installed as tty Event-channel device installed. xen_blk: Initialising virtual block device driver sda:<6>xen_net: Initialising virtual ethernet driver. unknown partition table NET: Registered protocol family 2 IP: routing cache hash table of 4096 buckets, 32Kbytes TCP established hash table entries: 16384 (order: 5, 131072 bytes) TCP bind hash table entries: 16384 (order: 4, 65536 bytes) TCP: Hash tables configured (established 16384 bind 16384) NET: Registered protocol family 1 NET: Registered protocol family 17 EXT3-fs: INFO: recovery required on readonly filesystem. EXT3-fs: write access will be enabled during recovery. EXT3-fs: recovery complete. kjournald starting. Commit interval 5 seconds EXT3-fs: mounted filesystem with ordered data mode. VFS: Mounted root (ext3 filesystem) readonly. Freeing unused kernel memory: 112k freed INIT: version 2.86 booting Activating swap. EXT3 FS on sda, internal journal hwclock is unable to get I/O port access: the iopl(3) call failed. System time was Mon Apr 10 19:12:48 UTC 2006. Setting the System Clock using the Hardware Clock as reference... hwclock is unable to get I/O port access: the iopl(3) call failed. System Clock set. System local time is now Mon Apr 10 19:12:48 UTC 2006. Cleaning up ifupdown...done. Checking all file systems... fsck 1.37 (21-Mar-2005) WARNING: Your /etc/fstab does not contain the fsck passno field. I will kludge around things for you, but you should fix your /etc/fstab file as soon as you can. Setting kernel variables ... ... done. Mounting local filesystems... Cleaning /tmp /var/run /var/lock. Running 0dns-down to make sure resolv.conf is ok...done. Setting up networking...done. Setting up IP spoofing protection: rp_filter. Configuring network interfaces...done. Setting the System Clock using the Hardware Clock as reference... hwclock is unable to get I/O port access: the iopl(3) call failed. System Clock set. Local time: Mon Apr 10 21:12:49 CEST 2006 Initializing random number generator...done. Recovering nvi editor sessions... done. Setting up X server socket directory /tmp/.X11-unix...done. Setting up ICE socket directory /tmp/.ICE-unix...done. INIT: Entering runlevel: 4 Starting system log daemon: syslogd. Starting kernel log daemon: klogd. Starting OpenLDAP: running BDB recovery, slapd slurpd. Starting MTA: ^[[Aexim4. Starting internet superserver: inetd. Starting OpenBSD Secure Shell server: sshd. Starting FreeRADIUS daemon: Mon Apr 10 21:15:51 2006 : Info: Starting - reading configuration files ... freeradius. Starting deferred execution scheduler: atd. Starting periodic command scheduler: cron. Debian GNU/Linux 3.1 radius1 tty1 xen-server:/srv/xen# xen-server:~# cat /srv/xen/radius1 # -*- mode: python; -*- #==========================================================================# Python configuration setup for ''xm create''. # This script sets the parameters used when a domain is created using ''xm create''. # You use a separate script for each domain you want to create, or # you can set the parameters for the domain on the xm command line. #========================================================================== #--------------------------------------------------------------------------- - # Kernel image file. kernel = "/boot/vmlinuz-2.6.11.12-xenU" # Optional ramdisk. #ramdisk = "/boot/initrd.gz" # The domain build function. Default is ''linux''. #builder=''linux'' # Initial memory allocation (in megabytes) for the new domain. memory = 400 # A name for your domain. All domains must have different names. name = "radius1" # Which CPU to start domain on? #cpu = -1 # leave to Xen to pick #--------------------------------------------------------------------------- - # Define network interfaces. # Number of network interfaces. Default is 1. nics=1 # Optionally define mac and/or bridge for the network interfaces. # Random MACs are assigned if not given. #vif = [ ''''] vif = [ ''mac=aa:00:00:00:1b:11, bridge=xen-br0'' ] #--------------------------------------------------------------------------- - # Define the disk devices you want the domain to have access to, and # what you want them accessible as. # Each disk entry is of the form phy:UNAME,DEV,MODE # where UNAME is the device, DEV is the device name the domain will see, # and MODE is r for read-only, w for read-write. disk = [ ''phy:volg1/radius1,sda,w'' ] #--------------------------------------------------------------------------- - # Set the kernel command line for the new domain. # You only need to define the IP parameters and hostname if the domain''s # IP config doesn''t, e.g. in ifcfg-eth0 or via DHCP. # You can use ''extra'' to set the runlevel and custom environment # variables used by custom rc scripts (e.g. VMID=, usr= ). # Set if you want dhcp to allocate the IP address. #dhcp="dhcp" # Set netmask. #netmask# Set default gateway. #gateway# Set the hostname. #hostname= "vm%d" % vmid # Set root device. root = "/dev/sda ro" # Root device for nfs. #root = "/dev/nfs" # The nfs server. #nfs_server = ''169.254.1.0'' # Root directory on the nfs server. #nfs_root = ''/full/path/to/root/directory'' # Sets runlevel 4. extra = "4" #--------------------------------------------------------------------------- - # Set according to whether you want the domain restarted when it exits. # The default is ''onreboot'', which restarts the domain when it shuts down # with exit code reboot. # Other values are ''always'', and ''never''. #restart = ''onreboot'' #==========================================================================xen-server:~# _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi, i created a domU MAchine (debian Sarge)on an lvm patition under Xen3 with actual kernel 2.6.12. This worked verry well and fast. I decided to move this domU to an other machine running Xen 2.0.7. After copying the lvm on this machine and creating the config file I booted this domU up with Kernle 2.6.11.12 which seems to be the most actual kernel fpr xen2.0.7 in a domU. My Problem ist that the domU is verrrrry slow it need more than 4 Minutes to boot into a debian base system. And starting an application is quiete impossible with this week performance. To be shure that xen dom0 works fine I created a new domU on this machine with an lvm drive an a debian base system. This works verry well an fast... Has someone any idea what causes this problem? Or how I can fix it? Here are my logfiles: Greetings Armin xen-server:~# xm dmesg ERROR: cannot use unconfigured serial port COM1 __ __ ____ ___ _____ \ \/ /___ _ __ |___ \ / _ \|___ | \ // _ \ ''_ \ __) || | | | / / / \ __/ | | | / __/ | |_| | / / /_/\_\___|_| |_| |_____(_)___(_)_/ http://www.cl.cam.ac.uk/netos/xen University of Cambridge Computer Laboratory Xen version 2.0.7 (root@localdomain) (gcc-Version 3.3.5 (Debian 1:3.3.5-13)) Mo Apr 10 18:14:49 CEST 2006 Latest ChangeSet: (XEN) Physical RAM map: (XEN) 0000000000000000 - 000000000009fc00 (usable) (XEN) 000000000009fc00 - 00000000000a0000 (reserved) (XEN) 00000000000e0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 000000007fff0000 (usable) (XEN) 000000007fff0000 - 000000007ffff000 (ACPI data) (XEN) 000000007ffff000 - 0000000080000000 (ACPI NVS) (XEN) 00000000ffb80000 - 0000000100000000 (reserved) (XEN) System RAM: 2047MB (2096700kB) (XEN) Xen heap: 10MB (10732kB) (XEN) CPU0: Before vendor init, caps: bfebfbff 00000000 00000000, vendor = 0 (XEN) CPU#0: Physical ID: 0, Logical ID: 0 (XEN) CPU caps: bfebfbff 00000000 00000000 00000000 (XEN) found SMP MP-table at 000ff780 (XEN) ACPI: RSDP (v002 ACPIAM ) @ 0x000f6fb0 (XEN) ACPI: XSDT (v001 A M I OEMXSDT 0x04000429 MSFT 0x00000097) @ 0x7fff0100 (XEN) ACPI: FADT (v003 A M I OEMFACP 0x04000429 MSFT 0x00000097) @ 0x7fff0200 (XEN) ACPI: MADT (v001 A M I OEMAPIC 0x04000429 MSFT 0x00000097) @ 0x7fff0300 (XEN) ACPI: OEMB (v001 A M I OEMBIOS 0x04000429 MSFT 0x00000097) @ 0x7ffff040 (XEN) ACPI: DSDT (v001 PSCHL PSCHL017 0x00000017 INTL 0x02002026) @ 0x00000000 (XEN) ACPI: Local APIC address 0xfee00000 (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) (XEN) Processor #0 Unknown CPU [15:3] APIC version 20 (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled) (XEN) Processor #1 Unknown CPU [15:3] APIC version 20 (XEN) ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1]) (XEN) Using ACPI for processor (LAPIC) configuration information (XEN) Intel MultiProcessor Specification v1.4 (XEN) Virtual Wire compatibility mode. (XEN) OEM ID: TEMPLATE Product ID: PSCH-L APIC at: 0xFEE00000 (XEN) I/O APIC #2 Version 32 at 0xFEC00000. (XEN) I/O APIC #3 Version 32 at 0xFEC10000. (XEN) Enabling APIC mode: Flat. Using 2 I/O APICs (XEN) Processors: 2 (XEN) Using scheduler: Borrowed Virtual Time (bvt) (XEN) Initializing CPU#0 (XEN) Detected 2992.627 MHz processor. (XEN) CPU0: Before vendor init, caps: bfebfbff 00000000 00000000, vendor = 0 (XEN) CPU#0: Physical ID: 0, Logical ID: 0 (XEN) CPU caps: bfebfbff 00000000 00000000 00000000 (XEN) CPU0 booted (XEN) enabled ExtINT on CPU#0 (XEN) ESR value before enabling vector: 00000000 (XEN) ESR value after enabling vector: 00000000 (XEN) Booting processor 1/1 eip 90000 (XEN) Initializing CPU#1 (XEN) masked ExtINT on CPU#1 (XEN) ESR value before enabling vector: 00000000 (XEN) ESR value after enabling vector: 00000000 (XEN) CPU1: Before vendor init, caps: bfebfbff 00000000 00000000, vendor = 0 (XEN) CPU#1: Physical ID: 0, Logical ID: 1 (XEN) CPU caps: bfebfbff 00000000 00000000 00000000 (XEN) CPU1 has booted. (XEN) Total of 2 processors activated. (XEN) ENABLING IO-APIC IRQs (XEN) Setting 2 in the phys_id_present_map (XEN) ...changing IO-APIC physical APIC ID to 2 ... ok. (XEN) Setting 3 in the phys_id_present_map (XEN) ...changing IO-APIC physical APIC ID to 3 ... ok. (XEN) init IO_APIC IRQs (XEN) ..TIMER: vector=0x41 pin1=2 pin2=0 (XEN) Using local APIC timer interrupts. (XEN) Calibrating APIC timer for CPU0... (XEN) ..... CPU speed is 2992.5230 MHz. (XEN) ..... Bus speed is 199.5014 MHz. (XEN) ..... bus_scale = 0x0000CC4F (XEN) checking TSC synchronization across CPUs: passed. (XEN) Time init: (XEN) .... System Time: 20001009ns (XEN) .... cpu_freq: 00000000:B25FDF2C (XEN) .... scale: 00000001:562C9A1B (XEN) .... Wall Clock: 1144690464s 130000us (XEN) PCI: PCI BIOS revision 2.10 entry at 0xf0031, last bus=4 (XEN) PCI: Using configuration type 1 (XEN) PCI: Probing PCI hardware (XEN) PCI: Probing PCI hardware (bus 00) (XEN) PCI: Ignoring BAR0-3 of IDE controller 00:1f.1 (XEN) Transparent bridge - PCI device 8086:244e (XEN) PCI: Using IRQ router default [8086/25a1] at 00:1f.0 (XEN) PCI->APIC IRQ transform: (B0,I29,P0) -> 16 (XEN) PCI->APIC IRQ transform: (B0,I29,P1) -> 19 (XEN) PCI->APIC IRQ transform: (B0,I29,P3) -> 23 (XEN) PCI->APIC IRQ transform: (B0,I31,P0) -> 18 (XEN) PCI->APIC IRQ transform: (B0,I31,P1) -> 17 (XEN) PCI->APIC IRQ transform: (B1,I1,P0) -> 18 (XEN) PCI->APIC IRQ transform: (B2,I3,P0) -> 25 (XEN) PCI->APIC IRQ transform: (B2,I5,P0) -> 27 (XEN) PCI->APIC IRQ transform: (B3,I4,P0) -> 24 (XEN) PCI->APIC IRQ transform: (B3,I4,P1) -> 25 (XEN) PCI->APIC IRQ transform: (B3,I6,P0) -> 26 (XEN) PCI->APIC IRQ transform: (B3,I6,P1) -> 27 (XEN) PCI->APIC IRQ transform: (B4,I4,P0) -> 20 (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=generi c,PT_MODE_WRITABLE'' (XEN) PHYSICAL MEMORY ARRANGEMENT: (XEN) Kernel image: 00c00000->0104a87c (XEN) Initrd image: 00000000->00000000 (XEN) Dom0 alloc.: 01400000->11400000 (XEN) VIRTUAL MEMORY ARRANGEMENT: (XEN) Loaded kernel: c0100000->c057ffc4 (XEN) Init. ramdisk: c0580000->c0580000 (XEN) Phys-Mach map: c0580000->c05c0000 (XEN) Page tables: c05c0000->c05c3000 (XEN) Start info: c05c3000->c05c4000 (XEN) Boot stack: c05c4000->c05c5000 (XEN) TOTAL: c0000000->c0800000 (XEN) ENTRY ADDRESS: c0100000 (XEN) Scrubbing DOM0 RAM: ...done. (XEN) Scrubbing Free RAM: .....................done. (XEN) *** Serial input -> DOM0 (type ''CTRL-a'' three times to switch input to Xen). xen-server:/srv/xen# cat bootlog radius1 Linux version 2.6.11.12-xenU (root@xen-server) (gcc-Version 3.3.5 (Debian 1:3.3. 5-13)) #1 Mon Apr 10 17:40:41 CEST 2006 BIOS-provided physical RAM map: Xen: 0000000000000000 - 0000000019000000 (usable) 400MB LOWMEM available. DMI not present. IRQ lockup detection disabled Allocating PCI resources starting at 19000000 (gap: 19000000:e7000000) Built 1 zonelists Kernel command line: root=/dev/sda ro 4 Initializing CPU#0 PID hash table entries: 2048 (order: 11, 32768 bytes) Xen reported: 2992.627 MHz processor. Using tsc for high-res timesource Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) vmalloc area: d9800000-fbff9000, maxmem 34000000 Memory: 402560k/409600k available (1631k kernel code, 6756k reserved, 439k data, 112k 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: Trace cache: 12K uops, L1 D cache: 16K CPU: L2 cache: 1024K CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 04 Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Checking ''hlt'' instruction... disabled NET: Registered protocol family 16 xen_mem: Initialising balloon driver. Initializing Cryptographic API io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize Xen virtual console successfully installed as tty Event-channel device installed. xen_blk: Initialising virtual block device driver sda:<6>xen_net: Initialising virtual ethernet driver. unknown partition table NET: Registered protocol family 2 IP: routing cache hash table of 4096 buckets, 32Kbytes TCP established hash table entries: 16384 (order: 5, 131072 bytes) TCP bind hash table entries: 16384 (order: 4, 65536 bytes) TCP: Hash tables configured (established 16384 bind 16384) NET: Registered protocol family 1 NET: Registered protocol family 17 EXT3-fs: INFO: recovery required on readonly filesystem. EXT3-fs: write access will be enabled during recovery. EXT3-fs: recovery complete. kjournald starting. Commit interval 5 seconds EXT3-fs: mounted filesystem with ordered data mode. VFS: Mounted root (ext3 filesystem) readonly. Freeing unused kernel memory: 112k freed INIT: version 2.86 booting Activating swap. EXT3 FS on sda, internal journal hwclock is unable to get I/O port access: the iopl(3) call failed. System time was Mon Apr 10 19:12:48 UTC 2006. Setting the System Clock using the Hardware Clock as reference... hwclock is unable to get I/O port access: the iopl(3) call failed. System Clock set. System local time is now Mon Apr 10 19:12:48 UTC 2006. Cleaning up ifupdown...done. Checking all file systems... fsck 1.37 (21-Mar-2005) WARNING: Your /etc/fstab does not contain the fsck passno field. I will kludge around things for you, but you should fix your /etc/fstab file as soon as you can. Setting kernel variables ... ... done. Mounting local filesystems... Cleaning /tmp /var/run /var/lock. Running 0dns-down to make sure resolv.conf is ok...done. Setting up networking...done. Setting up IP spoofing protection: rp_filter. Configuring network interfaces...done. Setting the System Clock using the Hardware Clock as reference... hwclock is unable to get I/O port access: the iopl(3) call failed. System Clock set. Local time: Mon Apr 10 21:12:49 CEST 2006 Initializing random number generator...done. Recovering nvi editor sessions... done. Setting up X server socket directory /tmp/.X11-unix...done. Setting up ICE socket directory /tmp/.ICE-unix...done. INIT: Entering runlevel: 4 Starting system log daemon: syslogd. Starting kernel log daemon: klogd. Starting OpenLDAP: running BDB recovery, slapd slurpd. Starting MTA: ^[[Aexim4. Starting internet superserver: inetd. Starting OpenBSD Secure Shell server: sshd. Starting FreeRADIUS daemon: Mon Apr 10 21:15:51 2006 : Info: Starting - reading configuration files ... freeradius. Starting deferred execution scheduler: atd. Starting periodic command scheduler: cron. Debian GNU/Linux 3.1 radius1 tty1 xen-server:/srv/xen# xen-server:~# cat /srv/xen/radius1 # -*- mode: python; -*- #==========================================================================# Python configuration setup for ''xm create''. # This script sets the parameters used when a domain is created using ''xm create''. # You use a separate script for each domain you want to create, or # you can set the parameters for the domain on the xm command line. #========================================================================== #--------------------------------------------------------------------------- - # Kernel image file. kernel = "/boot/vmlinuz-2.6.11.12-xenU" # Optional ramdisk. #ramdisk = "/boot/initrd.gz" # The domain build function. Default is ''linux''. #builder=''linux'' # Initial memory allocation (in megabytes) for the new domain. memory = 400 # A name for your domain. All domains must have different names. name = "radius1" # Which CPU to start domain on? #cpu = -1 # leave to Xen to pick #--------------------------------------------------------------------------- - # Define network interfaces. # Number of network interfaces. Default is 1. nics=1 # Optionally define mac and/or bridge for the network interfaces. # Random MACs are assigned if not given. #vif = [ ''''] vif = [ ''mac=aa:00:00:00:1b:11, bridge=xen-br0'' ] #--------------------------------------------------------------------------- - # Define the disk devices you want the domain to have access to, and # what you want them accessible as. # Each disk entry is of the form phy:UNAME,DEV,MODE # where UNAME is the device, DEV is the device name the domain will see, # and MODE is r for read-only, w for read-write. disk = [ ''phy:volg1/radius1,sda,w'' ] #--------------------------------------------------------------------------- - # Set the kernel command line for the new domain. # You only need to define the IP parameters and hostname if the domain''s # IP config doesn''t, e.g. in ifcfg-eth0 or via DHCP. # You can use ''extra'' to set the runlevel and custom environment # variables used by custom rc scripts (e.g. VMID=, usr= ). # Set if you want dhcp to allocate the IP address. #dhcp="dhcp" # Set netmask. #netmask# Set default gateway. #gateway# Set the hostname. #hostname= "vm%d" % vmid # Set root device. root = "/dev/sda ro" # Root device for nfs. #root = "/dev/nfs" # The nfs server. #nfs_server = ''169.254.1.0'' # Root directory on the nfs server. #nfs_root = ''/full/path/to/root/directory'' # Sets runlevel 4. extra = "4" #--------------------------------------------------------------------------- - # Set according to whether you want the domain restarted when it exits. # The default is ''onreboot'', which restarts the domain when it shuts down # with exit code reboot. # Other values are ''always'', and ''never''. #restart = ''onreboot'' #==========================================================================xen-server:~# _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Am Dienstag 11 April 2006 14:19 schrieb Krämer Armin:> <snip>Don''t repost in such short intervals... That doesn''t make it more likely for you to get an answer, but less likely... --- Heiko. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Okay, i found my mistake on my own. The mistake was a wrong configured lo Interface and the wrong defined nameservers In this environment. This causes my DomU running impossible slowly (5 minuttes to open mc :-) ) A correction of this and all works fine now. Greeting Armin Message: 1 Date: Tue, 11 Apr 2006 11:21:27 +0200 From: Kr?mer Armin <Kraemer.Armin@web.de> Subject: [Xen-users] Verry Slow domU performance To: <xen-users@lists.xensource.com> Message-ID: <002f01c65d49$4fcb7f10$152ea8c0@workstationak> Content-Type: text/plain; charset="iso-8859-1" Hi, i created a domU MAchine (debian Sarge)on an lvm patition under Xen3 with actual kernel 2.6.12. This worked verry well and fast. I decided to move this domU to an other machine running Xen 2.0.7. After copying the lvm on this machine and creating the config file I booted this domU up with Kernle 2.6.11.12 which seems to be the most actual kernel fpr xen2.0.7 in a domU. My Problem ist that the domU is verrrrry slow it need more than 4 Minutes to boot into a debian base system. And starting an application is quiete impossible with this week performance. To be shure that xen dom0 works fine I created a new domU on this machine with an lvm drive an a debian base system. This works verry well an fast... Has someone any idea what causes this problem? Or how I can fix it? Here are my logfiles: Greetings Armin _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users