Spectre Mitigation/lfence not serializing on VM Startup












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I just a download Ubuntu 18.04.1 disk image to run off of Virtual Box, and whenever I start the VM it gives me the message "spectre v2 mitigation: lfence not serializing. switching to generic retpoline". After this it runs a trace and then stops. I'm not sure what to do about this. The other blog posts I saw where people had this issue were due to older GPU hardware (I'm running an Nvidia GTX 1060, so I wouldn't consider that too old) or because they were using an older version of Ubuntu. As far as I know, 18.04.1 is the latest version. Anyone know why this is happening?










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    I just a download Ubuntu 18.04.1 disk image to run off of Virtual Box, and whenever I start the VM it gives me the message "spectre v2 mitigation: lfence not serializing. switching to generic retpoline". After this it runs a trace and then stops. I'm not sure what to do about this. The other blog posts I saw where people had this issue were due to older GPU hardware (I'm running an Nvidia GTX 1060, so I wouldn't consider that too old) or because they were using an older version of Ubuntu. As far as I know, 18.04.1 is the latest version. Anyone know why this is happening?










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      I just a download Ubuntu 18.04.1 disk image to run off of Virtual Box, and whenever I start the VM it gives me the message "spectre v2 mitigation: lfence not serializing. switching to generic retpoline". After this it runs a trace and then stops. I'm not sure what to do about this. The other blog posts I saw where people had this issue were due to older GPU hardware (I'm running an Nvidia GTX 1060, so I wouldn't consider that too old) or because they were using an older version of Ubuntu. As far as I know, 18.04.1 is the latest version. Anyone know why this is happening?










      share|improve this question














      I just a download Ubuntu 18.04.1 disk image to run off of Virtual Box, and whenever I start the VM it gives me the message "spectre v2 mitigation: lfence not serializing. switching to generic retpoline". After this it runs a trace and then stops. I'm not sure what to do about this. The other blog posts I saw where people had this issue were due to older GPU hardware (I'm running an Nvidia GTX 1060, so I wouldn't consider that too old) or because they were using an older version of Ubuntu. As far as I know, 18.04.1 is the latest version. Anyone know why this is happening?







      boot virtualbox






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      asked Sep 14 '18 at 15:12









      mxb1999mxb1999

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          I am having the same problem with this version on Ubuntu in VirtualBox. I'm running on a new computer and I have SVM enabled in the bios.



          Edit: Ubuntu 18.04 lts freezes while in boot, in wndows Virtual box. Solution?



          This answer led me to try turning on an additional core in Settings -> System -> Processor which then would show the "Spectre v2..." text but still boot.






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            I am having the same problem with this version on Ubuntu in VirtualBox. I'm running on a new computer and I have SVM enabled in the bios.



            Edit: Ubuntu 18.04 lts freezes while in boot, in wndows Virtual box. Solution?



            This answer led me to try turning on an additional core in Settings -> System -> Processor which then would show the "Spectre v2..." text but still boot.






            share|improve this answer






























              0














              I am having the same problem with this version on Ubuntu in VirtualBox. I'm running on a new computer and I have SVM enabled in the bios.



              Edit: Ubuntu 18.04 lts freezes while in boot, in wndows Virtual box. Solution?



              This answer led me to try turning on an additional core in Settings -> System -> Processor which then would show the "Spectre v2..." text but still boot.






              share|improve this answer




























                0












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                0







                I am having the same problem with this version on Ubuntu in VirtualBox. I'm running on a new computer and I have SVM enabled in the bios.



                Edit: Ubuntu 18.04 lts freezes while in boot, in wndows Virtual box. Solution?



                This answer led me to try turning on an additional core in Settings -> System -> Processor which then would show the "Spectre v2..." text but still boot.






                share|improve this answer















                I am having the same problem with this version on Ubuntu in VirtualBox. I'm running on a new computer and I have SVM enabled in the bios.



                Edit: Ubuntu 18.04 lts freezes while in boot, in wndows Virtual box. Solution?



                This answer led me to try turning on an additional core in Settings -> System -> Processor which then would show the "Spectre v2..." text but still boot.







                share|improve this answer














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                edited Sep 15 '18 at 20:14

























                answered Sep 15 '18 at 19:50









                Windows 10 UserWindows 10 User

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