Name | CMS_3423717_1736545209.772909_0 |
Workunit | 229743000 |
Created | 10 Jan 2025, 21:40:14 UTC |
Sent | 10 Jan 2025, 22:27:47 UTC |
Report deadline | 10 Feb 2025, 22:27:47 UTC |
Received | 11 Jan 2025, 2:25:31 UTC |
Server state | Over |
Outcome | Computation error |
Client state | Compute error |
Exit status | -2147467259 (0x80004005) Unknown error code |
Computer ID | 10834524 |
Run time | 27 sec |
CPU time | |
Validate state | Invalid |
Credit | 0.00 |
Device peak FLOPS | 23.74 GFLOPS |
Application version | CMS Simulation v70.30 (vbox64_mt_mcore_cms) windows_x86_64 |
Peak working set size | 10.71 MB |
Peak swap size | 5.27 MB |
Peak disk usage | 0.01 MB |
<core_client_version>7.24.1</core_client_version> <![CDATA[ <message> Unspecified error (0x80004005) - exit code 2147500037 (0x80004005)</message> <stderr_txt> 2025-01-10 14:28:16 (3692): vboxwrapper version 26207 2025-01-10 14:28:16 (3692): BOINC client version: 7.24.1 2025-01-10 14:28:17 (3692): Detected: VirtualBox VboxManage Interface (Version: 7.0.6) 2025-01-10 14:28:17 (3692): Detected: Heartbeat check (file: 'heartbeat' every 1200.000000 seconds) 2025-01-10 14:28:17 (3692): Successfully copied 'init_data.xml' to the shared directory. 2025-01-10 14:28:17 (3692): Create VM. (boinc_a0b93f5b244a527d, slot#20) 2025-01-10 14:28:18 (3692): Setting Memory Size for VM. (4584MB) 2025-01-10 14:28:18 (3692): Setting CPU Count for VM. (4) 2025-01-10 14:28:19 (3692): Setting Chipset Options for VM. 2025-01-10 14:28:19 (3692): Setting Graphics Controller Options for VM. 2025-01-10 14:28:19 (3692): Setting Boot Options for VM. 2025-01-10 14:28:19 (3692): Setting Network Configuration for NAT. 2025-01-10 14:28:20 (3692): Enabling VM Network Access. 2025-01-10 14:28:20 (3692): Disabling USB Support for VM. 2025-01-10 14:28:20 (3692): Disabling COM Port Support for VM. 2025-01-10 14:28:20 (3692): Disabling LPT Port Support for VM. 2025-01-10 14:28:21 (3692): Disabling Audio Support for VM. 2025-01-10 14:28:21 (3692): Disabling Clipboard Support for VM. 2025-01-10 14:28:21 (3692): Disabling Drag and Drop Support for VM. 2025-01-10 14:28:21 (3692): Adding storage controller(s) to VM. 2025-01-10 14:28:22 (3692): Adding virtual disk drive to VM. (CMS_2024_04_29_prod.vdi) 2025-01-10 14:28:26 (3692): Attempts: 4 2025-01-10 14:28:27 (3692): Adding VirtualBox Guest Additions to VM. 2025-01-10 14:28:27 (3692): Adding network bandwidth throttle group to VM. (Defaulting to 1024GB) 2025-01-10 14:28:27 (3692): forwarding host port 63895 to guest port 80 2025-01-10 14:28:28 (3692): Enabling remote desktop for VM. 2025-01-10 14:28:28 (3692): Required extension pack not installed, remote desktop not enabled. 2025-01-10 14:28:28 (3692): Enabling shared directory for VM. 2025-01-10 14:28:28 (3692): Starting VM using VBoxManage interface. (boinc_a0b93f5b244a527d, slot#20) 2025-01-10 14:28:33 (3692): Error in start VM for VM: -2147467259 Command: VBoxManage -q startvm "boinc_a0b93f5b244a527d" --type headless Output: VBoxManage.exe: error: Not in a hypervisor partition (HVP=0) (VERR_NEM_NOT_AVAILABLE). VBoxManage.exe: error: AMD-V is disabled in the BIOS (or by the host OS) (VERR_SVM_DISABLED) VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component ConsoleWrap, interface IConsole Waiting for VM "boinc_a0b93f5b244a527d" to power on... 2025-01-10 14:28:33 (3692): VM failed to start. 2025-01-10 14:28:33 (3692): Could not start 2025-01-10 14:28:33 (3692): ERROR: VM failed to start 2025-01-10 14:28:33 (3692): Powering off VM. 2025-01-10 14:28:33 (3692): Deregistering VM. (boinc_a0b93f5b244a527d, slot#20) 2025-01-10 14:28:33 (3692): Removing network bandwidth throttle group from VM. 2025-01-10 14:28:33 (3692): Removing VM from VirtualBox. Hypervisor System Log: 00:00:16.572475 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:16.572689 ERROR [COM]: aRC=VBOX_E_INVALID_OBJECT_STATE (0x80bb0007) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={Cannot unregister the machine 'boinc_a0b93f5b244a527d' while it is locked}, preserve=false aResultDetail=0 00:00:16.743539 Saving settings file "C:\ProgramData\BOINC\slots\21\boinc_b34605d674ce86b2\boinc_b34605d674ce86b2.vbox" with version "1.19-windows" 00:00:16.749077 Finished saving settings file "C:\ProgramData\BOINC\slots\21\boinc_b34605d674ce86b2\boinc_b34605d674ce86b2.vbox" 00:00:16.841318 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:16.841435 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:16.841455 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:16.845742 ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0 00:00:16.936977 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:16.937081 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:16.937098 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.864492 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.864597 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.864618 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.865171 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.865221 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.865241 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.865458 Saving settings file "C:\Users\Ryzen\.VirtualBox\VirtualBox.xml" with version "1.12-windows" 00:00:17.872401 Finished saving settings file "C:\Users\Ryzen\.VirtualBox\VirtualBox.xml" 00:00:17.872553 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.872596 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.872607 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.873005 Saving settings file "C:\ProgramData\BOINC\slots\21\boinc_b34605d674ce86b2\boinc_b34605d674ce86b2.vbox" with version "1.19-windows" 00:00:17.877693 Finished saving settings file "C:\ProgramData\BOINC\slots\21\boinc_b34605d674ce86b2\boinc_b34605d674ce86b2.vbox" 00:00:17.879639 DeleteVM ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.879706 DeleteVM ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.879717 DeleteVM ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:17.880131 DeleteVM Saving settings file "C:\ProgramData\BOINC\slots\21\boinc_b34605d674ce86b2\boinc_b34605d674ce86b2.vbox" with version "1.19-windows" 00:00:17.885083 DeleteVM Finished saving settings file "C:\ProgramData\BOINC\slots\21\boinc_b34605d674ce86b2\boinc_b34605d674ce86b2.vbox" 00:00:19.816436 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:19.816541 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:19.816555 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:19.817108 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:19.817152 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:19.817168 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={300763af-5d6b-46e6-aa96-273eac15538a} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0 00:00:19.817429 Saving settings file "C:\Users\Ryzen\.VirtualBox\VirtualBox.xml" with version "1.12-windows" 00:00:19.825250 Finished saving settings file "C:\Users\Ryzen\.VirtualBox\VirtualBox.xml" 00:00:19.825618 Saving settings file "C:\Users\Ryzen\.VirtualBox\VirtualBox.xml" with version "1.12-windows" 00:00:19.830281 Finished saving settings file "C:\Users\Ryzen\.VirtualBox\VirtualBox.xml" 00:00:19.832675 DeleteVM Saving settings file "C:\Users\Ryzen\.VirtualBox\VirtualBox.xml" with version "1.12-windows" 00:00:19.837694 DeleteVM Finished saving settings file "C:\Users\Ryzen\.VirtualBox\VirtualBox.xml" 00:00:24.845023 main VirtualBox: object deletion starts 00:00:24.847134 main HostDnsMonitor: shutting down ... 00:00:24.847235 main HostDnsMonitor: shut down 00:00:24.849593 Watcher ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={7682d5eb-f00e-44f1-8ca2-99d08b1cd607} aComponent={VirtualBoxWrap} aText={The object is not ready}, preserve=false aResultDetail=0 00:00:24.850337 main VirtualBox: object deleted VM Execution Log: VM Startup Log: VM Trace Log: ocessor Processor#17 speed: unknown Processor#17 description: AMD Ryzen 9 5950X 16-Core Processor Processor#18 speed: unknown Processor#18 description: AMD Ryzen 9 5950X 16-Core Processor Processor#19 speed: unknown Processor#19 description: AMD Ryzen 9 5950X 16-Core Processor Processor#20 speed: unknown Processor#20 description: AMD Ryzen 9 5950X 16-Core Processor Processor#21 speed: unknown Processor#21 description: AMD Ryzen 9 5950X 16-Core Processor Processor#22 speed: unknown Processor#22 description: AMD Ryzen 9 5950X 16-Core Processor Processor#23 speed: unknown Processor#23 description: AMD Ryzen 9 5950X 16-Core Processor Processor#24 speed: unknown Processor#24 description: AMD Ryzen 9 5950X 16-Core Processor Processor#25 speed: unknown Processor#25 description: AMD Ryzen 9 5950X 16-Core Processor Processor#26 speed: unknown Processor#26 description: AMD Ryzen 9 5950X 16-Core Processor Processor#27 speed: unknown Processor#27 description: AMD Ryzen 9 5950X 16-Core Processor Processor#28 speed: unknown Processor#28 description: AMD Ryzen 9 5950X 16-Core Processor Processor#29 speed: unknown Processor#29 description: AMD Ryzen 9 5950X 16-Core Processor Processor#30 speed: unknown Processor#30 description: AMD Ryzen 9 5950X 16-Core Processor Processor#31 speed: unknown Processor#31 description: AMD Ryzen 9 5950X 16-Core Processor Memory size: 32670 MByte Memory available: 27368 MByte Operating system: Windows 11 Operating system version: 10.0.22631 2025-01-10 14:28:17 (3692): Command: VBoxManage -q showvminfo "boinc_a0b93f5b244a527d" --machinereadable Exit Code: -2135228415 Output: VBoxManage.exe: error: Could not find a registered machine named 'boinc_a0b93f5b244a527d' VBoxManage.exe: error: Details: code VBOX_E_OBJECT_NOT_FOUND (0x80bb0001), component VirtualBoxWrap, interface IVirtualBox, callee IUnknown VBoxManage.exe: error: Context: "FindMachine(Bstr(VMNameOrUuid).raw(), machine.asOutParam())" at line 3139 of file VBoxManageInfo.cpp 2025-01-10 14:28:18 (3692): Command: VBoxManage -q createvm --name "boinc_a0b93f5b244a527d" --basefolder "C:\ProgramData\BOINC\slots\20" --ostype "Linux26_64" --register Exit Code: 0 Output: Virtual machine 'boinc_a0b93f5b244a527d' is created and registered. UUID: 4c8e6739-c92c-495a-b2e5-37593ea4bf0d Settings file: 'C:\ProgramData\BOINC\slots\20\boinc_a0b93f5b244a527d\boinc_a0b93f5b244a527d.vbox' 2025-01-10 14:28:18 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --description "CMS_3423717_1736545209.772909_0" Exit Code: 0 Output: 2025-01-10 14:28:18 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --memory 4584 Exit Code: 0 Output: 2025-01-10 14:28:19 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --cpus 4 Exit Code: 0 Output: 2025-01-10 14:28:19 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --acpi on --ioapic on --rtcuseutc off Exit Code: 0 Output: 2025-01-10 14:28:19 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --vram 16 --graphicscontroller VBoxVGA Exit Code: 0 Output: 2025-01-10 14:28:19 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --boot1 disk --boot2 dvd --boot3 none --boot4 none Exit Code: 0 Output: 2025-01-10 14:28:20 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --nic1 nat --natdnsproxy1 on --cableconnected1 off Exit Code: 0 Output: 2025-01-10 14:28:20 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --cableconnected1 on Exit Code: 0 Output: 2025-01-10 14:28:20 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --usb off Exit Code: 0 Output: 2025-01-10 14:28:20 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --uart1 off --uart2 off Exit Code: 0 Output: 2025-01-10 14:28:21 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --lpt1 off --lpt2 off Exit Code: 0 Output: 2025-01-10 14:28:21 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --audio-enabled off Exit Code: 0 Output: 2025-01-10 14:28:21 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --clipboard disabled Exit Code: 0 Output: 2025-01-10 14:28:21 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --draganddrop disabled Exit Code: 0 Output: 2025-01-10 14:28:22 (3692): Command: VBoxManage -q storagectl "boinc_a0b93f5b244a527d" --name "Hard Disk Controller" --add "sata" --controller "IntelAHCI" --hostiocache off --portcount 3 Exit Code: 0 Output: 2025-01-10 14:28:27 (3692): Command: VBoxManage -q showhdinfo "C:\ProgramData\BOINC/projects/lhcathome.cern.ch_lhcathome/CMS_2024_04_29_prod.vdi" Exit Code: 0 Output: UUID: 461abfaf-39ef-4b91-89ba-53cae0787c5e Parent UUID: base State: created Type: multiattach Location: C:\ProgramData\BOINC\projects\lhcathome.cern.ch_lhcathome\CMS_2024_04_29_prod.vdi Storage format: VDI Format variant: dynamic default Capacity: 20480 MBytes Size on disk: 3853 MBytes Encryption: disabled Property: AllocationBlockSize=1048576 Child UUIDs: dd57a3c4-d1f2-4ff9-ac42-4a735e1dc964 5d9f43e8-046b-4de5-9533-7895b11aa050 2025-01-10 14:28:27 (3692): Command: VBoxManage -q storageattach "boinc_a0b93f5b244a527d" --storagectl "Hard Disk Controller" --port 0 --device 0 --type hdd --mtype multiattach --medium "C:\ProgramData\BOINC/projects/lhcathome.cern.ch_lhcathome/CMS_2024_04_29_prod.vdi" Exit Code: 0 Output: 2025-01-10 14:28:27 (3692): Command: VBoxManage -q storageattach "boinc_a0b93f5b244a527d" --storagectl "Hard Disk Controller" --port 1 --device 0 --type dvddrive --medium "C:\Program Files\Oracle\VirtualBox/VBoxGuestAdditions.iso" Exit Code: 0 Output: 2025-01-10 14:28:27 (3692): Command: VBoxManage -q bandwidthctl "boinc_a0b93f5b244a527d" add "boinc_a0b93f5b244a527d_net" --type network --limit 1024G Exit Code: 0 Output: 2025-01-10 14:28:28 (3692): Command: VBoxManage -q modifyvm "boinc_a0b93f5b244a527d" --natpf1 ",tcp,127.0.0.1,63895,,80" Exit Code: 0 Output: 2025-01-10 14:28:28 (3692): Command: VBoxManage -q list extpacks Exit Code: 0 Output: Extension Packs: 0 2025-01-10 14:28:28 (3692): Command: VBoxManage -q sharedfolder add "boinc_a0b93f5b244a527d" --name "shared" --hostpath "C:\ProgramData\BOINC\slots\20/shared" Exit Code: 0 Output: 2025-01-10 14:28:33 (3692): Command: VBoxManage -q startvm "boinc_a0b93f5b244a527d" --type headless Exit Code: -2147467259 Output: VBoxManage.exe: error: Not in a hypervisor partition (HVP=0) (VERR_NEM_NOT_AVAILABLE). VBoxManage.exe: error: AMD-V is disabled in the BIOS (or by the host OS) (VERR_SVM_DISABLED) VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component ConsoleWrap, interface IConsole Waiting for VM "boinc_a0b93f5b244a527d" to power on... 2025-01-10 14:28:33 (3692): Command: VBoxManage -q snapshot "boinc_a0b93f5b244a527d" list Exit Code: -108 Output: This machine does not have any snapshots 2025-01-10 14:28:33 (3692): Command: VBoxManage -q bandwidthctl "boinc_a0b93f5b244a527d" remove "boinc_a0b93f5b244a527d_net" Exit Code: 0 Output: VBoxManage.exe: error: Bandwidth groups cannot be deleted while the VM is running 2025-01-10 14:28:33 (3692): Command: VBoxManage -q unregistervm "boinc_a0b93f5b244a527d" --delete Exit Code: -2135228409 Output: VBoxManage.exe: error: Cannot unregister the machine 'boinc_a0b93f5b244a527d' while it is locked VBoxManage.exe: error: Details: code VBOX_E_INVALID_OBJECT_STATE (0x80bb0007), component MachineWrap, interface IMachine, callee IUnknown VBoxManage.exe: error: Context: "Unregister(fDeleteAll ? CleanupMode_DetachAllReturnHardDisksAndVMRemovable :CleanupMode_DetachAllReturnHardDisksOnly, ComSafeArrayAsOutParam(aMedia))" at line 236 of file VBoxManageMisc.cpp 2025-01-10 14:28:35 (3692): Command: VBoxManage -q unregistervm "boinc_a0b93f5b244a527d" --delete Exit Code: 0 Output: 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100% 2025-01-10 14:28:42 (3692): called boinc_finish(-2147467259) </stderr_txt> ]]>
©2025 CERN