Post #1797921
2026-04-23 01:12 UTC
Anyone have experience running nested VMs on Arm64? When I start an L2 guest inside an L1 hypervisor with virsh, one or two host cores (not cores being used by the L1 hypervisor) get pegged at 100% and I get warnings from the kernel about a core getting stuck - not sure how to debug it and characterize the issue.
Replies (2)
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@purpleidea@mastodon.social 2026-04-23 03:44
@dneary@mastodon.ie I've not experienced this, but if you want to give me root on the machine, I'm happy to debug it a bit and see what's happening with you.
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@hrw@society.oftrolls.com 2026-04-23 06:04
@dneary@mastodon.ie do you run it on system with FEAT_NV2 or without it? AArch64 lacks nested virtualization on almost all core designs.