Task 2072269

Name	07219182_080_2
Workunit	1500354
Created	19 May 2019, 20:48:23 UTC
Sent	19 May 2019, 20:50:08 UTC
Report deadline	24 May 2019, 20:50:08 UTC
Received	20 May 2019, 4:20:01 UTC
Server state	Over
Outcome	Computation error
Client state	Compute error
Exit status	196 (0x000000C4) EXIT_DISK_LIMIT_EXCEEDED
Computer ID	218
Run time	4 min 44 sec
CPU time	2 min 40 sec
Validate state	Invalid
Credit	0.00
Device peak FLOPS	2.24 GFLOPS
Application version	boinc2docker v1.12 (vbox64_mt) x86_64-pc-linux-gnu
Peak working set size	93.55 MB
Peak swap size	3.43 GB
Peak disk usage	3.05 GB
Stderr output

<core_client_version>7.4.23</core_client_version>
<![CDATA[
<message>
Maximum disk usage exceeded
</message>
<stderr_txt>
2019-05-19 23:14:42 (8308): vboxwrapper (7.7.26197): starting
2019-05-19 23:14:42 (8308): Feature: Checkpoint interval offset (240 seconds)
2019-05-19 23:14:42 (8308): Detected: VirtualBox VboxManage Interface (Version: 5.1.8)
2019-05-19 23:14:42 (8308): Detected: Minimum checkpoint interval (600.000000 seconds)
2019-05-19 23:14:42 (8308): Create VM. (boinc_c2857b7e60112307, slot#2)
2019-05-19 23:14:42 (8308): Updating drive controller type and model for desired configuration.
2019-05-19 23:14:55 (8308): Setting Memory Size for VM. (3072MB)
2019-05-19 23:14:55 (8308): Setting CPU Count for VM. (1)
2019-05-19 23:14:55 (8308): Setting Chipset Options for VM.
2019-05-19 23:14:55 (8308): Setting Boot Options for VM.
2019-05-19 23:14:55 (8308): Setting Network Configuration for NAT.
2019-05-19 23:14:55 (8308): Enabling VM Network Access.
2019-05-19 23:14:55 (8308): Disabling USB Support for VM.
2019-05-19 23:14:55 (8308): Disabling COM Port Support for VM.
2019-05-19 23:14:55 (8308): Disabling LPT Port Support for VM.
2019-05-19 23:14:55 (8308): Disabling Audio Support for VM.
2019-05-19 23:14:55 (8308): Disabling Clipboard Support for VM.
2019-05-19 23:14:56 (8308): Disabling Drag and Drop Support for VM.
2019-05-19 23:14:56 (8308): Adding storage controller(s) to VM.
2019-05-19 23:14:56 (8308): Adding virtual ISO 9660 disk drive to VM. (vm_isocontext.iso)
2019-05-19 23:14:56 (8308): Adding network bandwidth throttle group to VM. (Defaulting to 1024GB)
2019-05-19 23:14:56 (8308): Enabling shared directory for VM.
2019-05-19 23:14:56 (8308): Starting VM. (boinc_c2857b7e60112307, slot#2)
2019-05-19 23:14:58 (8308): Successfully started VM. (PID = '9453')
2019-05-19 23:14:58 (8308): Reporting VM Process ID to BOINC.
2019-05-19 23:14:58 (8308): Guest Log: BIOS: VirtualBox 5.1.8
2019-05-19 23:14:58 (8308): VM state change detected. (old = 'poweroff', new = 'running')
2019-05-19 23:14:58 (8308): Preference change detected
2019-05-19 23:14:58 (8308): Setting CPU throttle for VM. (75%)
2019-05-19 23:14:59 (8308): Setting checkpoint interval to 600 seconds. (Higher value of (Preference: 60 seconds) or (Vbox_job.xml: 600 seconds))
2019-05-19 23:15:00 (8308): Guest Log: BIOS: Boot : bseqnr=1, bootseq=0032
2019-05-19 23:15:00 (8308): Guest Log: int13_harddisk: function 02, unmapped device for ELDL=80
2019-05-19 23:15:00 (8308): Guest Log: BIOS: Boot from Hard Disk 0 failed
2019-05-19 23:15:00 (8308): Guest Log: BIOS: Boot : bseqnr=2, bootseq=0003
2019-05-19 23:15:00 (8308): Guest Log: BIOS: Booting from CD-ROM...
2019-05-19 23:15:02 (8308): Guest Log: BIOS: KBD: unsupported int 16h function 03
2019-05-19 23:15:02 (8308): Guest Log: BIOS: AX=0305 BX=0000 CX=0000 DX=0000 
2019-05-19 23:15:22 (8308): Guest Log: vgdrvHeartbeatInit: Setting up heartbeat to trigger every 2000 milliseconds
2019-05-19 23:15:22 (8308): Guest Log: vboxguest: misc device minor 56, IRQ 20, I/O port d020, MMIO at 00000000f0400000 (size 0x400000)
2019-05-19 23:15:23 (8308): Guest Log: net.ipv4.ip_forward = 1
2019-05-19 23:15:23 (8308): Guest Log: sysctl: cannot stat /proc/sys/net/ipv6/conf/all/forwarding: No such file or directory
2019-05-19 23:15:23 (8308): Guest Log: sysctl: setting key "cannot stat %s": No such file or directory
2019-05-19 23:15:23 (8308): Guest Log: sysctl: "cannot stat %s" is an unknown key
2019-05-19 23:15:23 (8308): Guest Log: sysctl: setting key "cannot stat %s": No such file or directory
2019-05-19 23:15:23 (8308): Guest Log: Segmentation fault
2019-05-19 23:15:23 (8308): Guest Log: automount ...
2019-05-19 23:15:24 (8308): Guest Log: Is the disk unpartitioned?, test for the 'boot2docker format-me' string
2019-05-19 23:15:24 (8308): Guest Log: automount over.
2019-05-19 23:15:24 (8308): Guest Log: [1;32mSetting hostname to [1;35mboot2docker[0;39m [1;32mDone.[0;39m
2019-05-19 23:15:24 (8308): Guest Log: Sun May 19 23:15:22 UTC 2019 dhcp -------------------------------
2019-05-19 23:15:30 (8308): Guest Log: udevadm settle - timeout of 5 seconds reached, the event queue contains:
2019-05-19 23:15:30 (8308): Guest Log:   /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/LNXVIDEO:00/input/input6 (1296)
2019-05-19 23:15:30 (8308): Guest Log:   /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/LNXVIDEO:00/input/input6/event5 (1297)
2019-05-19 23:15:30 (8308): Guest Log:   /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:00/PNP0700:00 (1314)
2019-05-19 23:15:31 (8308): Guest Log: Sun May 19 23:15:28 UTC 2019 dhcp -------------------------------
2019-05-19 23:15:31 (8308): Guest Log: VBoxService 5.0.16 r105871 (verbosity: 0) linux.amd64 (Mar  4 2016 17:38:55) release log
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.000823 main     Log opened 2019-05-19T23:15:29.632136000Z
2019-05-19 23:15:31 (8308): Guest Log: VBoxService 5.0.16 r105871 (verbosity: 0) linux.amd64 (Mar  4 2016 17:38:55) release log
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.000823 main     Log opened 2019-05-100:00:00.005638 main     OS Product: Linux
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.005715 main     OS Release: 4.1.19-boot2docker
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.005781 main     OS Version: #1 SMP Sun Apr 17 19:40:54 UTC 2016
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.005844 main     Executable: /sbin/VBoxService
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.005846 main     Process ID: 745
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.005847 main     Package type: LINUX_64BITS_GENERIC
2019-05-19 23:15:31 (8308): Guest Log: 9T23:15:29.632136000Z
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.039377 main     5.0.16 r105871 started. Verbose level = 0
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.005638 main     OS Product: Linux
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00:00:00.060556 vminfo   rtldrNativeLoad: dlopen('libdbus-1.so.3', RTLD_NOW | RTLD_LOCAL) failed: libdbus-1.so.3: cannot open shared object file: No such file or directory
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.060690 vminfo   Error: Unable to connect to system D-Bus (1/3): D-Bus not installed
2019-05-19 23:15:31 (8308): Guest Log: 00.005715 main     OS Release: 4.1.19-boot2docker
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.005844 main     Executable: /sbin/VBoxService
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.005846 main     Process ID: 745
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.005847 main     Package type: LINUX_64BITS_GENERIC
2019-05-19 23:15:31 (8308): Guest Log: 00:00:00.039377 main     5.0.16 r105871 started. Verbose level = 0
2019-05-19 23:15:32 (8308): Guest Log: Mounting BOINC shared/...
2019-05-19 23:15:32 (8308): Guest Log: -------------------
2019-05-19 23:15:32 (8308): Guest Log: Mon May 20 03:15:31 UTC 2019
2019-05-19 23:15:36 (8308): Guest Log: 00:00:05.066564 vminfo   Error: Unable to connect to system D-Bus (2/3): D-Bus not installed
2019-05-19 23:15:37 (8308): Guest Log: Mon May 20 03:15:36 UTC 2019
2019-05-19 23:15:37 (8308): Guest Log: 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
2019-05-19 23:15:37 (8308): Guest Log:     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2019-05-19 23:15:37 (8308): Guest Log:     inet 127.0.0.1/8 scope host lo
2019-05-19 23:15:37 (8308): Guest Log:        valid_lft forever preferred_lft forever
2019-05-19 23:15:37 (8308): Guest Log: 2: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default 
2019-05-19 23:15:37 (8308): Guest Log:     link/ether d6:1b:7d:45:03:b9 brd ff:ff:ff:ff:ff:ff
2019-05-19 23:15:37 (8308): Guest Log: 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
2019-05-19 23:15:37 (8308): Guest Log:     link/ether 08:00:27:76:ae:e3 brd ff:ff:ff:ff:ff:ff
2019-05-19 23:15:37 (8308): Guest Log:     inet 10.0.2.15/24 brd 10.0.2.255 scope global eth0
2019-05-19 23:15:37 (8308): Guest Log:        valid_lft forever preferred_lft forever
2019-05-19 23:15:37 (8308): Guest Log: -------------------
2019-05-19 23:15:37 (8308): Guest Log: Linking /etc/docker to /var/lib/boot2docker for persistence
2019-05-19 23:15:37 (8308): Guest Log: Waiting for Docker daemon to start...
2019-05-19 23:15:40 (8308): Guest Log: REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
2019-05-19 23:15:40 (8308): Guest Log: Running boinc_app...
2019-05-19 23:15:40 (8308): Guest Log: Importing Docker image from BOINC...
2019-05-19 23:15:40 (8308): Guest Log: Filesystem                Size      Used Available Use% Mounted on
2019-05-19 23:15:40 (8308): Guest Log: tmpfs                     2.6G    164.1M      2.5G   6% /
2019-05-19 23:15:40 (8308): Guest Log: tmpfs                     1.5G         0      1.5G   0% /dev/shm
2019-05-19 23:15:40 (8308): Guest Log: cgroup                    1.5G         0      1.5G   0% /sys/fs/cgroup
2019-05-19 23:15:40 (8308): Guest Log: shared                  916.3G     87.1G    829.2G  10% /root/shared
2019-05-19 23:15:40 (8308): Guest Log: tmpfs                     2.6G    164.1M      2.5G   6% /var/lib/docker/aufs
2019-05-19 23:15:41 (8308): Guest Log: 00:00:10.079117 vminfo   Error: Unable to connect to system D-Bus (3/3): D-Bus not installed
2019-05-19 23:15:57 (8308): Guest Log: doing docker load...
2019-05-19 23:16:21 (8308): Guest Log: Filesystem                Size      Used Available Use% Mounted on
2019-05-19 23:16:21 (8308): Guest Log: tmpfs                     2.6G    663.1M      2.0G  24% /
2019-05-19 23:16:21 (8308): Guest Log: tmpfs                     1.5G         0      1.5G   0% /dev/shm
2019-05-19 23:16:21 (8308): Guest Log: cgroup                    1.5G         0      1.5G   0% /sys/fs/cgroup
2019-05-19 23:16:21 (8308): Guest Log: shared                  916.3G     87.7G    828.6G  10% /root/shared
2019-05-19 23:16:21 (8308): Guest Log: tmpfs                     2.6G    663.1M      2.0G  24% /var/lib/docker/aufs
2019-05-19 23:16:21 (8308): Guest Log:               total        used        free      shared  buff/cache   available
2019-05-19 23:16:21 (8308): Guest Log: Mem:           3007          51        2254         663         701        2254
2019-05-19 23:16:21 (8308): Guest Log: Swap:           702           0         702
2019-05-19 23:16:21 (8308): Guest Log: Building apps directory...
2019-05-19 23:19:18 (8308): Powering off VM.
2019-05-19 23:19:19 (8308): Successfully stopped VM.
2019-05-19 23:19:19 (8308): Deregistering VM. (boinc_c2857b7e60112307, slot#2)
2019-05-19 23:19:19 (8308): Removing network bandwidth throttle group from VM.
2019-05-19 23:19:19 (8308): Removing storage controller(s) from VM.
2019-05-19 23:19:19 (8308): Removing VM from VirtualBox.
2019-05-19 23:19:19 (8308): Removing virtual ISO 9660 disk from VirtualBox.

    Hypervisor System Log:


    VM Execution Log:


    VM Startup Log:


    VM Trace Log:

Maximum Floppy Port count:       1
Maximum Devices per Floppy Port: 2
Default machine folder:          /var/lib/boinc-client/VirtualBox VMs
Raw-mode Supported:              yes
Exclusive HW virtualization use: on
Default hard disk format:        VDI
VRDE auth library:               VBoxAuth
Webservice auth. library:        VBoxAuth
Remote desktop ExtPack:          VNC
Log history count:               3
Default frontend:                
Default audio driver:            ALSA
Autostart database path:         
Default Guest Additions ISO:     
Logging Level:                   all

2019-05-19 23:14:42 (8308): 
Command: VBoxManage -q list hostinfo 
Exit Code: 0
Output:
Host Information:

Host time: 2019-05-20T03:14:42.590000000Z
Processor online count: 8
Processor count: 8
Processor online core count: 8
Processor core count: 8
Processor supports HW virtualization: yes
Processor supports PAE: yes
Processor supports long mode: yes
Processor supports nested paging: yes
Processor#0 speed: 2327 MHz
Processor#0 description: Intel(R) Xeon(R) CPU           E5410  @ 2.33GHz
Processor#1 speed: 2327 MHz
Processor#1 description: Intel(R) Xeon(R) CPU           E5410  @ 2.33GHz
Processor#2 speed: 2327 MHz
Processor#2 description: Intel(R) Xeon(R) CPU           E5410  @ 2.33GHz
Processor#3 speed: 2327 MHz
Processor#3 description: Intel(R) Xeon(R) CPU           E5410  @ 2.33GHz
Processor#4 speed: 2327 MHz
Processor#4 description: Intel(R) Xeon(R) CPU           E5410  @ 2.33GHz
Processor#5 speed: 2327 MHz
Processor#5 description: Intel(R) Xeon(R) CPU           E5410  @ 2.33GHz
Processor#6 speed: 2327 MHz
Processor#6 description: Intel(R) Xeon(R) CPU           E5410  @ 2.33GHz
Processor#7 speed: 2327 MHz
Processor#7 description: Intel(R) Xeon(R) CPU           E5410  @ 2.33GHz
Memory size: 16046 MByte
Memory available: 5619 MByte
Operating system: Linux
Operating system version: 4.9.0-0.bpo.8-amd64

2019-05-19 23:14:42 (8308): 
Command: VBoxManage -q showvminfo "boinc_c2857b7e60112307" --machinereadable 
Exit Code: -2135228415
Output:
VBoxManage: error: Could not find a registered machine named 'boinc_c2857b7e60112307'
VBoxManage: error: Details: code VBOX_E_OBJECT_NOT_FOUND (0x80bb0001), component VirtualBoxWrap, interface IVirtualBox, callee nsISupports
VBoxManage: error: Context: "FindMachine(Bstr(VMNameOrUuid).raw(), machine.asOutParam())" at line 2781 of file VBoxManageInfo.cpp

2019-05-19 23:14:42 (8308): 
Command: VBoxManage -q showhdinfo "/var/lib/boinc-client/slots/2/vm_image.vdi" 
Exit Code: -2135228412
Output:
VBoxManage: error: Could not find file for the medium '/var/lib/boinc-client/slots/2/vm_image.vdi' (VERR_FILE_NOT_FOUND)
VBoxManage: error: Details: code VBOX_E_FILE_ERROR (0x80bb0004), component MediumWrap, interface IMedium, callee nsISupports
VBoxManage: error: Context: "OpenMedium(Bstr(pszFilenameOrUuid).raw(), enmDevType, enmAccessMode, fForceNewUuidOnOpen, pMedium.asOutParam())" at line 179 of file VBoxManageDisk.cpp

2019-05-19 23:14:54 (8308): 
Command: VBoxManage -q createvm --name "boinc_c2857b7e60112307" --basefolder "/var/lib/boinc-client/slots/2" --ostype "Linux26_64" --register
Exit Code: 0
Output:
Virtual machine 'boinc_c2857b7e60112307' is created and registered.
UUID: 96b81a00-04c0-473f-b2fb-78e43dc541a4
Settings file: '/var/lib/boinc-client/slots/2/boinc_c2857b7e60112307/boinc_c2857b7e60112307.vbox'

2019-05-19 23:14:55 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --description "07219182_080_2" 
Exit Code: 0
Output:

2019-05-19 23:14:55 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --memory 3072 
Exit Code: 0
Output:

2019-05-19 23:14:55 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --cpus 1 
Exit Code: 0
Output:

2019-05-19 23:14:55 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --acpi on --ioapic on 
Exit Code: 0
Output:

2019-05-19 23:14:55 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --boot1 disk --boot2 dvd --boot3 none --boot4 none 
Exit Code: 0
Output:

2019-05-19 23:14:55 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --nic1 nat --natdnsproxy1 on --cableconnected1 off 
Exit Code: 0
Output:

2019-05-19 23:14:55 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --cableconnected1 on 
Exit Code: 0
Output:

2019-05-19 23:14:55 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --usb off 
Exit Code: 0
Output:

2019-05-19 23:14:55 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --uart1 off --uart2 off 
Exit Code: 0
Output:

2019-05-19 23:14:55 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --lpt1 off --lpt2 off 
Exit Code: 0
Output:

2019-05-19 23:14:55 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --audio none 
Exit Code: 0
Output:

2019-05-19 23:14:56 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --clipboard disabled 
Exit Code: 0
Output:

2019-05-19 23:14:56 (8308): 
Command: VBoxManage -q modifyvm "boinc_c2857b7e60112307" --draganddrop disabled 
Exit Code: 0
Output:

2019-05-19 23:14:56 (8308): 
Command: VBoxManage -q storagectl "boinc_c2857b7e60112307" --name "Hard Disk Controller" --add "sata" --controller "IntelAHCI" --hostiocache off --portcount 3
Exit Code: 0
Output:

2019-05-19 23:14:56 (8308): 
Command: VBoxManage -q storageattach "boinc_c2857b7e60112307" --storagectl "Hard Disk Controller" --port 0 --device 0 --type dvddrive --medium "/var/lib/boinc-client/slots/2/vm_isocontext.iso" 
Exit Code: 0
Output:

2019-05-19 23:14:56 (8308): 
Command: VBoxManage -q bandwidthctl "boinc_c2857b7e60112307" add "boinc_c2857b7e60112307_net" --type network --limit 1024G 
Exit Code: 0
Output:

2019-05-19 23:14:56 (8308): 
Command: VBoxManage -q sharedfolder add "boinc_c2857b7e60112307" --name "shared" --hostpath "/var/lib/boinc-client/slots/2/shared"
Exit Code: 0
Output:

2019-05-19 23:14:57 (8308): 
Command: VBoxManage -q startvm "boinc_c2857b7e60112307" --type headless
Exit Code: 0
Output:
Waiting for VM "boinc_c2857b7e60112307" to power on...
VM "boinc_c2857b7e60112307" has been successfully started.

2019-05-19 23:14:59 (8308): 
Command: VBoxManage -q controlvm "boinc_c2857b7e60112307" cpuexecutioncap 75 
Exit Code: 0
Output:

2019-05-19 23:19:19 (8308): 
Command: VBoxManage -q controlvm "boinc_c2857b7e60112307" poweroff
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

2019-05-19 23:19:19 (8308): 
Command: VBoxManage -q snapshot "boinc_c2857b7e60112307" list 
Exit Code: 0
Output:
This machine does not have any snapshots

2019-05-19 23:19:19 (8308): 
Command: VBoxManage -q bandwidthctl "boinc_c2857b7e60112307" remove "boinc_c2857b7e60112307_net" 
Exit Code: 0
Output:

2019-05-19 23:19:19 (8308): 
Command: VBoxManage -q storagectl "boinc_c2857b7e60112307" --name "Hard Disk Controller" --remove 
Exit Code: 0
Output:

2019-05-19 23:19:19 (8308): 
Command: VBoxManage -q unregistervm "boinc_c2857b7e60112307" --delete 
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

2019-05-19 23:19:19 (8308): 
Command: VBoxManage -q closemedium dvd "/var/lib/boinc-client/slots/2/vm_isocontext.iso" --delete 
Exit Code: -2135228404
Output:
VBoxManage: error: Cannot delete storage: medium '/var/lib/boinc-client/slots/2/vm_isocontext.iso' is still attached to the following 2 virtual machine(s): 85f1434e-601e-4c41-8cba-3a9c0c8a4866, 76d14220-3897-4c83-b73e-ad326173fa19
VBoxManage: error: Details: code VBOX_E_OBJECT_IN_USE (0x80bb000c), component MediumWrap, interface IMedium, callee nsISupports
VBoxManage: error: Context: "DeleteStorage(pProgress.asOutParam())" at line 1578 of file VBoxManageDisk.cpp
VBoxManage: error: Failed to delete medium. Error code Unknown Status -2135228404 (0x80bb000c)
VBoxManage: error: Medium '/var/lib/boinc-client/slots/2/vm_isocontext.iso' cannot be closed because it is still attached to 2 virtual machines
VBoxManage: error: Details: code VBOX_E_OBJECT_IN_USE (0x80bb000c), component MediumWrap, interface IMedium, callee nsISupports
VBoxManage: error: Context: "Close()" at line 1587 of file VBoxManageDisk.cpp

23:19:24 (8308): called boinc_finish(194)

</stderr_txt>
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