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Support Qemu 9.2 #14916

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Igorgro opened this issue Feb 3, 2025 · 3 comments · May be fixed by #15154
Open

Support Qemu 9.2 #14916

Igorgro opened this issue Feb 3, 2025 · 3 comments · May be fixed by #15154
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@nmezhenskyi

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@Igorgro
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Igorgro commented Feb 3, 2025 •
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I'm facing the same issue as the this one https://discuss.linuxcontainers.org/t/qemu-arch-and-vms-that-dont-start/21639/16 reported for Incus. When I'm trying to start a VM on latest Arch Linux with LXD 6.2 and Qemu 9.2, I'm getting the following error:

$ lxc start somevm
Error: Failed to add CPUs: Failed to add device: Invalid parameter type for 'core-id', expected: integer
Try `lxc info --show-log somevm` for more info

Looks like there missing support for Qemu 9.2. Downgrading to Qemu 9.1 makes everything works again
@zazizou
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zazizou commented Feb 4, 2025

Yep,

Having the same issue here. Incus has been fixed for this bug lxc/incus#1531

@tomponline
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Hi,

Yes we will indeed support QEMU 9.2.

I believe we need at least these fixes from Incus

lxc/incus#1531
lxc/incus#1601

However we may also need to remove our dependency on virtfs-proxy-helper if that has been removed from QEMU by then.

lxc/incus#1547
lxc/incus#1594

The latter PRs have more significant ramifications though as we rely on that service for 9p passthrough.

@tomponline
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@nmezhenskyi want to try cherry-picking the first 2 PRs into LXD?

@nmezhenskyi nmezhenskyi linked a pull request Mar 11, 2025 that will close this issue
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VM: Fix QMP arguments typing to support QEMU 9.2 (from Incus) nmezhenskyi/lxd
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@tomponline @zazizou @Igorgro @nmezhenskyi