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Thread: Error opening console in virt-manager

  1. #1
    Join Date
    Apr 2017
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    Germany
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    Exclamation Error opening console in virt-manager

    Hello everyone,

    I am using virt-manager and qemu/KVM to run a few virtual machines on my desktop.
    Recently, I started getting an error message when trying to open the console of a VM (this happens for all VMs):
    Internal error: failed to parse JSON 1:59: too big integer near '18446744073709551615'

    I found a thread in the Arch Linux forums describing the same error message: https://bbs.archlinux.org/viewtopic.php?pid=1802642

    Apparently the bug is due to virt-manager switching to a different JSON library. The problems appears to be resolved upstream, so I am optimistic it will be fixed in Tumbleweed soon, as well.
    For the time being, has anyone found a workaround?

    Fortunately, I mostly just ssh into my VMs, so it is not a huge deal, but still.

    Thank you very much,
    Benjamin

  2. #2

    Default Re: Error opening console in virt-manager

    I would guess maybe one of the configuration files for the VMs have a max
    amount of virtual memory in them, and that number happens to be 2^64-1, so
    it is probably coded in there If that's the case, perhaps you can just go
    to the file, make it some more-reasonable number, and then try it at that
    point.

    You mentioned it is fixed upstream; perhaps you could incorporate the fix
    directly into your system. If you share the link to the upstream fix,
    that may help us confirm that suspicion.

    --
    Good luck.

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  3. #3
    Join Date
    Apr 2017
    Location
    Germany
    Posts
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    Thumbs up Re: Error opening console in virt-manager

    Quote Originally Posted by ab View Post
    I would guess maybe one of the configuration files for the VMs have a max
    amount of virtual memory in them, and that number happens to be 2^64-1, so
    it is probably coded in there If that's the case, perhaps you can just go
    to the file, make it some more-reasonable number, and then try it at that
    point..
    Thank you!

    Whatever it was, I ran zypper dup today which updated ~150 packages, and now it is working again. ;-)

  4. #4

    Default Re: Error opening console in virt-manager

    I am glad to hear it. That detail may help others in your situation in
    the future, particularly since it was a known issue fixed upstream. Nice
    to know Tumbleweed is rolling as quickly as we believe it is.


    --
    Good luck.

    If you find this post helpful and are logged into the web interface,
    show your appreciation and click on the star below.

    If you want to send me a private message, please let me know in the
    forum as I do not use the web interface often.

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