[  181.335227] systemd-logind[1423]: Watching system buttons on /dev/input/event2 (Power Button)
[  181.335322] systemd-logind[1423]: Watching system buttons on /dev/input/event9 (Video Bus)
[  181.335411] systemd-logind[1423]: Watching system buttons on /dev/input/event0 (Power Button)
[  181.335497] systemd-logind[1423]: Watching system buttons on /dev/input/event1 (Lid Switch)
[  181.721228] r8169 0000:02:00.0 eth0: link down
[  181.721284] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[  181.724987] r8169 0000:02:00.0 eth0: link down
[  181.735030] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  183.312718] r8169 0000:02:00.0 eth0: link up
[  183.312731] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[  198.299819] vboxdrv: module verification failed: signature and/or  required key missing - tainting kernel
[  198.303752] vboxdrv: Found 2 processor cores.
[  198.303997] vboxdrv: fAsync=0 offMin=0x1fe offMax=0x794
[  198.304169] vboxdrv: TSC mode is 'synchronous', kernel timer mode is 'normal'.
[  198.304172] vboxdrv: Successfully loaded version 4.3.16 (interface 0x001a0007).
[  198.663102] vboxpci: IOMMU not found (not registered)
[  203.091698] audit: type=1400 audit(1416297204.292:37): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=2106 comm="apparmor_parser"
[  203.091712] audit: type=1400 audit(1416297204.292:38): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2106 comm="apparmor_parser"
[  203.116169] audit: type=1400 audit(1416297204.320:39): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="third_party" pid=2106 comm="apparmor_parser"
[  206.808197] init: plymouth-upstart-bridge main process ended, respawning
[  206.815102] init: plymouth-upstart-bridge main process (2139) terminated with status 1
[  206.815120] init: plymouth-upstart-bridge main process ended, respawning
[  207.012111] systemd-logind[1423]: Failed to start unit user@110.service: Unknown unit: user@110.service
[  207.012121] systemd-logind[1423]: Failed to start user service: Unknown unit: user@110.service
[  207.019289] systemd-logind[1423]: New session c1 of user lightdm.
[  207.019321] systemd-logind[1423]: Linked /tmp/.X11-unix/X0 to /run/user/110/X11-display.
[  224.341699] systemd-logind[1423]: Failed to start unit user@1000.service: Unknown unit: user@1000.service
[  224.341708] systemd-logind[1423]: Failed to start user service: Unknown unit: user@1000.service
[  224.349938] systemd-logind[1423]: New session c2 of user caiofior.
[  224.349970] systemd-logind[1423]: Linked /tmp/.X11-unix/X0 to /run/user/1000/X11-display.
[  250.832707] init: bootchart post-stop process (2508) terminated with status 1
[  284.666368] systemd-logind[1423]: New session c3 of user caiofior.
[  403.372187] init: tty1 main process ended, respawning
[  404.156460] usb 5-1: USB disconnect, device number 4
[  405.752200] usb 5-1: new low-speed USB device number 5 using uhci_hcd
[  405.929238] usb 5-1: New USB device found, idVendor=045e, idProduct=0737
[  405.929243] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[  405.929247] usb 5-1: Product: Compact Optical Mouse 500
[  405.929250] usb 5-1: Manufacturer: Microsoft 
[  405.957330] input: Microsoft  Compact Optical Mouse 500 as /devices/pci0000:00/0000:00:1d.0/usb5/5-1/5-1:1.0/0003:045E:0737.0004/input/input14
[  405.957564] hid-generic 0003:045E:0737.0004: input,hidraw0: USB HID v1.11 Mouse [Microsoft  Compact Optical Mouse 500] on usb-0000:00:1d.0-1/input0
[  534.950529] perf interrupt took too long (2502 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
[ 1677.987305] perf interrupt took too long (5008 > 5000), lowering kernel.perf_event_max_sample_rate to 25000
[ 1911.583658] systemd-logind[1423]: New session c4 of user caiofior.
[ 1930.524338] init: lightdm main process (2076) killed by KILL signal
[ 1944.969036] systemd-logind[1423]: New session c5 of user lightdm.
[ 1957.961706] init: tty1 main process ended, respawning
[ 1962.857796] systemd-logind[1423]: New session c6 of user caiofior.
[ 2297.123051] systemd-logind[1423]: Failed to start unit user@65534.service: Unknown unit: user@65534.service
[ 2297.123062] systemd-logind[1423]: Failed to start user service: Unknown unit: user@65534.service
[ 2297.131719] systemd-logind[1423]: New session c7 of user nobody.
[ 2297.323789] systemd-logind[1423]: New session c8 of user nobody.
[ 2297.363121] systemd-logind[1423]: New session c9 of user nobody.