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Blocking userfaultfd() kernel-fault handling

Blocking userfaultfd() kernel-fault handling

Posted May 9, 2020 5:27 UTC (Sat) by kccqzy (guest, #121854)
In reply to: Blocking userfaultfd() kernel-fault handling by NYKevin
Parent article: Blocking userfaultfd() kernel-fault handling

I don't understand the cloud provider argument. It does seem like this feature can help with live VM migration, but when you are a cloud provider, you don't necessarily require all users to run unmodified Linux kernels. If a user runs a non-Linux VM, how can the cloud provider migrate that VM?


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Blocking userfaultfd() kernel-fault handling

Posted May 9, 2020 5:37 UTC (Sat) by Cyberax (✭ supporter ✭, #52523) [Link]

The virtual machine that runs client's code (KVM) looks like a regular process to the host Linux.


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