What were you trying to do that didn't work?

Migrate vm from RHEL10.0 to RHEL 10.1 with 64k kernel

What is the impact of this issue to you?

Please provide the package NVR for which the bug is seen:

source host:
kernel-6.12.0-55.31.1.el10_0.aarch64+64k
qemu-kvm-9.1.0-15.el10_0.4.aarch64
target host:
kernel-6.12.0-124.el10.aarch64+64k
qemu-kvm-10.0.0-13.el10_1.aarch64

guest kernel: 6.12.0-55.9.1.el10_0.aarch64+64k

How reproducible is this bug?:

100%

Steps to reproduce

1. Setup migration environment
2. Run command:

   virsh -c 'qemu:///system' migrate --live --p2p --verbose --domain avocado-vt-vm1 --desturi qemu+ssh://10.26.1.121/system

   #

Expected results

migration succeeds

Actual results

Migration: [100.00 %]^M[stdlog] Migration: [100.00 %]error: operation failed: job 'migration out' failed: Unable to read from socket: Connection reset by peer

Source host qemu log:
2025-09-11 02:48:05.368+0000: Domain id=2 is tainted: custom-monitor
2025-09-11 02:49:41.801+0000: initiating migration
2025-09-11T02:49:51.604012Z qemu-kvm: Unable to read from socket: Connection reset by peer
2025-09-11T02:49:53.320992Z qemu-kvm: terminating on signal 15 from pid 218204 (/usr/sbin/virtqemud)
2025-09-11 02:49:53.921+0000: shutting down, reason=destroyed

Target host qemu log:
2025-09-11 06:24:46.755+0000: Domain id=1 is tainted: host-cpu
char device redirected to /dev/pts/0 (label charserial0)
2025-09-11T06:25:39.729325Z qemu-kvm: error while loading state for instance 0x0 of device 'cpu'
2025-09-11T06:25:39.729475Z qemu-kvm: Failed to put registers after init: Invalid argument
2025-09-11 06:25:40.404+0000: shutting down, reason=crashed