[ 2.764257] vboxdrv: Found 4 processor cores [ 2.791858] vboxdrv: TSC mode is Invariant, tentative frequency 3310801727 Hz [ 2.791860] vboxdrv: Successfully loaded version 5.1.8 (interface 0x00280000) [ 2.793025] VBoxPciLinuxInit [ 2.804288] vboxpci: IOMMU not found (not registered) [ 2.804953] VBoxNetAdp: Successfully started. [ 2.806435] VBoxNetFlt: Successfully started. [ 160.725969] vboxdrv: ffffffffa0c09020 VMMR0.r0 [ 160.926887] vboxdrv: ffffffffa0d0b020 VBoxDDR0.r0 [ 161.004929] vboxdrv: ffffffffa0006020 VBoxEhciR0.r0 [12192.812421] NAT[5141]: segfault at 1c ip 00007fe5e7705601 sp 00007fe5e4501aa0 error 4 in VBoxDD.so[7fe5e75f1000+194000] [31350.744767] vboxdrv: ffffffffa0c09020 VMMR0.r0 [31350.948674] vboxdrv: ffffffffa0d0b020 VBoxDDR0.r0 [31351.029015] vboxdrv: ffffffffa0006020 VBoxEhciR0.r0