[ 347.463977] vboxdrv: fAsync=0 offMin=0x5e8 offMax=0x5ef0 [ 347.464212] vboxdrv: TSC mode is 'synchronous', kernel timer mode is 'normal'. [ 347.464217] vboxdrv: Successfully loaded version 4.1.18_Ubuntu (interface 0x00190000). [ 347.496605] vboxpci: IOMMU not found (not registered) [ 348.948770] init: plymouth-stop pre-start process (2199) terminated with status 1 [ 366.760102] end_request: I/O error, dev fd0, sector 0 [ 366.784060] end_request: I/O error, dev fd0, sector 0 [ 423.657245] update-notifier[2880]: segfault at 20 ip b6ead0ce sp bffb6c80 error 4 in libgobject-2.0.so.0.3400.0[b6e9b000+4e000]