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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    Thanks everyone for the replies. I will simply wait and follow this thread.
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    Xubuntu 18.04 (Proposed enabled)


    $ uname -a
    Linux xubuntu 4.15.0-9-generic #10-Ubuntu SMP Thu Feb 8 20:22:38 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux


    $ sudo sh spectre-meltdown-checker.sh...
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    Before installing microcode


    $ sudo sh spectre-meltdown-checker.sh
    [sudo] password for xubuntu:
    Spectre and Meltdown mitigation detection tool v0.21

    Checking for vulnerabilities against...
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    I am getting this


    $ apt policy intel-microcode
    intel-microcode:
    Installed: (none)
    Candidate: 3.20180108.1+really20171117.1
    Version table:
    3.20180108.1+really20171117.1 500
    ...
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    How do I patch against Spectre ? By installing the microcode firmware ?
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    $ sudo sh spectre-meltdown-checker.sh
    [sudo] password for xubuntu:
    Spectre and Meltdown mitigation detection tool v0.21

    Checking for vulnerabilities against live running kernel Linux...
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    Thats a big relief. Thanks a lot.

    BTW, I dont notice any slow down.
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    I am using 18.04 using kernel.


    4.14.0-16-generic #19-Ubuntu SMP Mon Jan 8 17:50:31 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

    I am still getting "pti"


    $ lscpu | grep pti
    Flags: ...
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    Under 16.04 I was facing issues with pulseaudio. I had to use
    pulseaudio -k a lot to recover from failed audio.

    18.04 has no such issue.


    I enabled proposed due to this...
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    lscpu | grep pti
    Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm...
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    @DuckHook
    Got it. Thanks
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    So what do you think I should do ? Remove 18.04 ? Installed 16.04 ?

    Frankly I do not want to reinstall.
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    I see pti here

    https://paste.ubuntu.com/26355474/

    Does that mean I am okay ?
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    I am using
    4.14.0-16-generic

    So I am safe ?
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    I too want to know the same thing.
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    Frankly I am yet to understand clearly what Meltdown and Spectre is.

    I am running

    4.14.0-16-generic

    Do you think I am safe ?
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    I am running 18.04 with bionic-proposed enabled. Just received a kernel update. Rebooted the system. Now when I run the Intel tool I still get

    "This system is vulnerable".


    $ uname -a
    Linux...
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    I have managed to run the tool. Here's the result :


    $ sudo python ./intel_sa00086.py
    [sudo] password for xubuntu:
    INTEL-SA-00086 Detection Tool
    Copyright(C) 2017, Intel Corporation, All...
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    Sticky: [ubuntu] Re: Meltdown and Spectre Discussion Sticky

    I have downloaded the tool, extracted it. How do I run it ?
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