Task 11003249

Name 08396606_27_0
Workunit 8537747
Created 8 Jul 2021, 21:35:50 UTC
Sent 9 Jul 2021, 8:05:16 UTC
Report deadline 14 Jul 2021, 8:05:16 UTC
Received 9 Jul 2021, 10:17:38 UTC
Server state Over
Outcome Computation error
Client state Compute error
Exit status -1073741819 (0xC0000005) STATUS_ACCESS_VIOLATION
Computer ID 7936
Run time 19 sec
CPU time
Validate state Invalid
Credit 0.00
Device peak FLOPS 4.46 GFLOPS
Application version boinc2docker v1.14 (vbox64_mt)
windows_x86_64
Peak working set size 10.56 MB
Peak swap size 6.42 MB
Peak disk usage 499.00 MB

Stderr output

<core_client_version>7.16.11</core_client_version>
<![CDATA[
<message>
(unknown error) - exit code 3221225477 (0xc0000005)</message>
<stderr_txt>
2021-07-09 11:16:45 (16856): Detected: vboxwrapper 26202
2021-07-09 11:16:45 (16856): Detected: BOINC client v7.16.11
2021-07-09 11:16:46 (16856): Detected: VirtualBox VboxManage Interface (Version: 5.2.8)
2021-07-09 11:16:47 (16856): Create VM. (boinc_29ec299f7c58eca0, slot#4)
2021-07-09 11:16:47 (16856): Updating drive controller type and model for desired configuration.
2021-07-09 11:16:48 (16856): Setting Memory Size for VM. (3072MB)
2021-07-09 11:16:48 (16856): Setting CPU Count for VM. (1)
2021-07-09 11:16:48 (16856): Setting Chipset Options for VM.
2021-07-09 11:16:48 (16856): Setting Boot Options for VM.
2021-07-09 11:16:49 (16856): Setting Network Configuration for NAT.
2021-07-09 11:16:49 (16856): Enabling VM Network Access.
2021-07-09 11:16:49 (16856): Disabling USB Support for VM.
2021-07-09 11:16:49 (16856): Disabling COM Port Support for VM.
2021-07-09 11:16:50 (16856): Disabling LPT Port Support for VM.
2021-07-09 11:16:50 (16856): Disabling Audio Support for VM.
2021-07-09 11:16:50 (16856): Disabling Clipboard Support for VM.
2021-07-09 11:16:50 (16856): Disabling Drag and Drop Support for VM.
2021-07-09 11:16:52 (16856): Adding storage controller(s) to VM.
2021-07-09 11:16:53 (16856): Adding virtual ISO 9660 disk drive to VM. (vm_isocontext.iso)
2021-07-09 11:16:53 (16856): Adding VirtualBox Guest Additions to VM.
2021-07-09 11:16:54 (16856): Adding network bandwidth throttle group to VM. (Defaulting to 1024GB)
2021-07-09 11:16:55 (16856): Enabling shared directory for VM.
2021-07-09 11:16:55 (16856): Starting VM using VBoxManage interface. (boinc_29ec299f7c58eca0, slot#4)
2021-07-09 11:16:57 (16856): Error in start VM for VM: -1073741819
Command:
VBoxManage -q startvm "boinc_29ec299f7c58eca0" --type headless
Output:
Waiting for VM "boinc_29ec299f7c58eca0" to power on...
VBoxManage.exe: error: The virtual machine 'boinc_29ec299f7c58eca0' has terminated unexpectedly during startup with exit code -1073741819 (0xc0000005)
VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component MachineWrap, interface IMachine

2021-07-09 11:16:57 (16856): VM failed to start.
2021-07-09 11:16:57 (16856): Could not start 
2021-07-09 11:16:57 (16856): ERROR: VM failed to start
2021-07-09 11:16:57 (16856): Powering off VM.
2021-07-09 11:16:57 (16856): Deregistering VM. (boinc_29ec299f7c58eca0, slot#4)
2021-07-09 11:16:57 (16856): Removing network bandwidth throttle group from VM.
2021-07-09 11:16:57 (16856): Removing VM from VirtualBox.
2021-07-09 11:16:57 (16856): Removing virtual ISO 9660 disk from VirtualBox.

    Hypervisor System Log:

00:00:08.080149          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 1 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:08.090123          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:08.336464          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:08.549893          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:08.551888          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 2 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:08.551888          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 2 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:08.551888          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:08.552885          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:08.552885          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:08.552885          Saving settings file "C:\ProgramData\BOINC\slots\4\boinc_29ec299f7c58eca0\boinc_29ec299f7c58eca0.vbox" with version "1.16-windows"
00:00:08.821168          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:08.824159          Saving settings file "C:\ProgramData\BOINC\slots\4\boinc_29ec299f7c58eca0\boinc_29ec299f7c58eca0.vbox" with version "1.16-windows"
00:00:09.084479          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:09.086473          Saving settings file "C:\ProgramData\BOINC\slots\4\boinc_29ec299f7c58eca0\boinc_29ec299f7c58eca0.vbox" with version "1.16-windows"
00:00:09.338588          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:09.344778          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 1 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:09.344778          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 1 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:09.351355          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:09.613191          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:09.948638 Watcher  ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The virtual machine 'boinc_82ee3c3a5c2b79fd' has terminated unexpectedly during startup with exit code -1073741819 (0xc0000005)}, preserve=false aResultDetail=0
00:00:09.949635 Watcher  Reaper: Pid 18088 (46a8) exited normally: -1073741819 (0xc0000005)
00:00:09.998548          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:10.000542          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:10.047212          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:10.049579          Saving settings file "C:\ProgramData\BOINC\slots\7\boinc_82ee3c3a5c2b79fd\boinc_82ee3c3a5c2b79fd.vbox" with version "1.16-windows"
00:00:10.319905          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:10.319905          Saving settings file "C:\Users\cla\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:10.582204          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:11.112316 Watcher  ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The virtual machine 'boinc_29ec299f7c58eca0' has terminated unexpectedly during startup with exit code -1073741819 (0xc0000005)}, preserve=false aResultDetail=0
00:00:11.112316 Watcher  Reaper: Pid 17524 (4474) exited normally: -1073741819 (0xc0000005)
00:00:11.179137          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:11.182129          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:11.241478          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:11.244471          Saving settings file "C:\ProgramData\BOINC\slots\4\boinc_29ec299f7c58eca0\boinc_29ec299f7c58eca0.vbox" with version "1.16-windows"
00:00:11.499787          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:11.499787          Saving settings file "C:\Users\cla\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:11.768981          ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={85cd948e-a71f-4289-281e-0ca7ad48cd89} aComponent={MachineWrap} aText={The object functionality is limited}, preserve=false aResultDetail=0
00:00:16.777471 main     VirtualBox: object deletion starts
00:00:16.779466 Watcher  ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={9570b9d5-f1a1-448a-10c5-e12f5285adad} aComponent={VirtualBoxWrap} aText={The object is not ready}, preserve=false aResultDetail=0
00:00:16.779466 main     VirtualBox: object deleted

    VM Execution Log:


    VM Startup Log:


    VM Trace Log:

uth
Remote desktop ExtPack:          
Log history count:               3
Default frontend:                
Default audio driver:            DirectSound
Autostart database path:         
Default Guest Additions ISO:     C:\Program Files\Oracle\VirtualBox/VBoxGuestAdditions.iso
Logging Level:                   all

2021-07-09 11:16:46 (16856): 
Command: VBoxManage -q list hostinfo 
Exit Code: 0
Output:
Host Information:

Host time: 2021-07-09T09:16:46.752000000Z
Processor online count: 8
Processor count: 8
Processor online core count: 4
Processor core count: 4
Processor supports HW virtualization: yes
Processor supports PAE: yes
Processor supports long mode: yes
Processor supports nested paging: yes
Processor#0 speed: unknown
Processor#0 description: Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
Processor#1 speed: unknown
Processor#1 description: Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
Processor#2 speed: unknown
Processor#2 description: Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
Processor#3 speed: unknown
Processor#3 description: Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
Processor#4 speed: unknown
Processor#4 description: Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
Processor#5 speed: unknown
Processor#5 description: Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
Processor#6 speed: unknown
Processor#6 description: Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
Processor#7 speed: unknown
Processor#7 description: Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
Memory size: 16347 MByte
Memory available: 9855 MByte
Operating system: Windows 10
Operating system version: 10.0.19041

2021-07-09 11:16:47 (16856): 
Command: VBoxManage -q showvminfo "boinc_29ec299f7c58eca0" --machinereadable 
Exit Code: -2135228415
Output:
VBoxManage.exe: error: Could not find a registered machine named 'boinc_29ec299f7c58eca0'
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 2834 of file VBoxManageInfo.cpp

2021-07-09 11:16:47 (16856): 
Command: VBoxManage -q showhdinfo "C:\ProgramData\BOINC\slots\4/vm_image.vdi" 
Exit Code: -2135228412
Output:
VBoxManage.exe: error: Could not find file for the medium 'C:\ProgramData\BOINC\slots\4\vm_image.vdi' (VERR_FILE_NOT_FOUND)
VBoxManage.exe: error: Details: code VBOX_E_FILE_ERROR (0x80bb0004), component MediumWrap, interface IMedium, callee IUnknown
VBoxManage.exe: error: Context: "OpenMedium(Bstr(pszFilenameOrUuid).raw(), enmDevType, enmAccessMode, fForceNewUuidOnOpen, pMedium.asOutParam())" at line 179 of file VBoxManageDisk.cpp

2021-07-09 11:16:47 (16856): 
Command: VBoxManage -q createvm --name "boinc_29ec299f7c58eca0" --basefolder "C:\ProgramData\BOINC\slots\4" --ostype "Linux26_64" --register
Exit Code: 0
Output:
Virtual machine 'boinc_29ec299f7c58eca0' is created and registered.
UUID: 4b1faeee-ab86-455a-b725-df3c951bb2b0
Settings file: 'C:\ProgramData\BOINC\slots\4\boinc_29ec299f7c58eca0\boinc_29ec299f7c58eca0.vbox'

2021-07-09 11:16:48 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --description "08396606_27_0" 
Exit Code: 0
Output:

2021-07-09 11:16:48 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --memory 3072 
Exit Code: 0
Output:

2021-07-09 11:16:48 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --cpus 1 
Exit Code: 0
Output:

2021-07-09 11:16:48 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --acpi on --ioapic on 
Exit Code: 0
Output:

2021-07-09 11:16:49 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --boot1 disk --boot2 dvd --boot3 none --boot4 none 
Exit Code: 0
Output:

2021-07-09 11:16:49 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --nic1 nat --natdnsproxy1 on --cableconnected1 off 
Exit Code: 0
Output:

2021-07-09 11:16:49 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --cableconnected1 on 
Exit Code: 0
Output:

2021-07-09 11:16:49 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --usb off 
Exit Code: 0
Output:

2021-07-09 11:16:50 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --uart1 off --uart2 off 
Exit Code: 0
Output:

2021-07-09 11:16:50 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --lpt1 off --lpt2 off 
Exit Code: 0
Output:

2021-07-09 11:16:50 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --audio none 
Exit Code: 0
Output:

2021-07-09 11:16:50 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --clipboard disabled 
Exit Code: 0
Output:

2021-07-09 11:16:52 (16856): 
Command: VBoxManage -q modifyvm "boinc_29ec299f7c58eca0" --draganddrop disabled 
Exit Code: 0
Output:

2021-07-09 11:16:53 (16856): 
Command: VBoxManage -q storagectl "boinc_29ec299f7c58eca0" --name "Hard Disk Controller" --add "sata" --controller "IntelAHCI" --hostiocache off --portcount 3
Exit Code: 0
Output:

2021-07-09 11:16:53 (16856): 
Command: VBoxManage -q storageattach "boinc_29ec299f7c58eca0" --storagectl "Hard Disk Controller" --port 0 --device 0 --type dvddrive --medium "C:\ProgramData\BOINC\slots\4/vm_isocontext.iso" 
Exit Code: 0
Output:

2021-07-09 11:16:53 (16856): 
Command: VBoxManage -q storageattach "boinc_29ec299f7c58eca0" --storagectl "Hard Disk Controller" --port 2 --device 0 --type dvddrive --medium "C:\Program Files\Oracle\VirtualBox/VBoxGuestAdditions.iso" 
Exit Code: -2147024809
Output:
VBoxManage.exe: error: Cannot register the DVD image 'C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions.iso' {31b29280-c35a-4c14-adba-941ca19a2c1e} because a CD/DVD image 'C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions.iso' with UUID {8cde8514-e5e6-4057-af81-c141229ca1ff} already exists
VBoxManage.exe: error: Details: code E_INVALIDARG (0x80070057), component VirtualBoxWrap, interface IVirtualBox, callee IUnknown
VBoxManage.exe: error: Context: "OpenMedium(Bstr(pszFilenameOrUuid).raw(), enmDevType, enmAccessMode, fForceNewUuidOnOpen, pMedium.asOutParam())" at line 179 of file VBoxManageDisk.cpp
VBoxManage.exe: error: Invalid UUID or filename "C:\Program Files\Oracle\VirtualBox/VBoxGuestAdditions.iso"

2021-07-09 11:16:54 (16856): 
Command: VBoxManage -q storageattach "boinc_29ec299f7c58eca0" --storagectl "Hard Disk Controller" --port 2 --device 0 --type dvddrive --medium "C:\Program Files\Oracle\VirtualBox/VBoxGuestAdditions.iso" 
Exit Code: 0
Output:

2021-07-09 11:16:55 (16856): 
Command: VBoxManage -q bandwidthctl "boinc_29ec299f7c58eca0" add "boinc_29ec299f7c58eca0_net" --type network --limit 1024G 
Exit Code: 0
Output:

2021-07-09 11:16:55 (16856): 
Command: VBoxManage -q sharedfolder add "boinc_29ec299f7c58eca0" --name "shared" --hostpath "C:\ProgramData\BOINC\slots\4/shared"
Exit Code: 0
Output:

2021-07-09 11:16:57 (16856): 
Command: VBoxManage -q startvm "boinc_29ec299f7c58eca0" --type headless
Exit Code: -1073741819
Output:
Waiting for VM "boinc_29ec299f7c58eca0" to power on...
VBoxManage.exe: error: The virtual machine 'boinc_29ec299f7c58eca0' has terminated unexpectedly during startup with exit code -1073741819 (0xc0000005)
VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component MachineWrap, interface IMachine

2021-07-09 11:16:57 (16856): 
Command: VBoxManage -q snapshot "boinc_29ec299f7c58eca0" list 
Exit Code: -108
Output:
This machine does not have any snapshots

2021-07-09 11:16:57 (16856): 
Command: VBoxManage -q bandwidthctl "boinc_29ec299f7c58eca0" remove "boinc_29ec299f7c58eca0_net" 
Exit Code: 0
Output:

2021-07-09 11:16:57 (16856): 
Command: VBoxManage -q unregistervm "boinc_29ec299f7c58eca0" --delete 
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

2021-07-09 11:16:58 (16856): 
Command: VBoxManage -q closemedium dvd "C:\ProgramData\BOINC\slots\4/vm_isocontext.iso" --delete 
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

11:17:03 (16856): called boinc_finish(-1073741819)

</stderr_txt>
]]>


©2025 COPYRIGHT 2017-2018 NCN