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Bug
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Resolution: Won't Do
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Major
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None
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rhel-9.5
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No
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Moderate
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1
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rhel-virt-hwe-arm-1
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ssg_virtualization
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5
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False
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False
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None
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Virt ARM 25-4
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None
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None
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Unspecified
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Unspecified
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Unspecified
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aarch64
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None
What were you trying to do that didn't work?
Live migrate an Aarch64 guest from one host to the other.
Host-1: hpe-apollo-cn99xx-16.khw.eng.rdu2.dc.redhat.com
Host-2: hpe-apollo-cn99xx-22.khw.eng.rdu2.dc.redhat.com
[root@hpe-apollo-cn99xx-16 ~]# uname -r
5.14.0-503.11.1.el9_5.aarch64
[root@hpe-apollo-cn99xx-22 ~]# uname -r
5.14.0-503.11.1.el9_5.aarch64
- virsh migrate --verbose --live --auto-converge --parallel --parallel-connections 4 r91vm qemu+ssh://hpe-apollo-cn99xx-22.khw.eng.rdu2.dc.redhat.com/system
What is the impact of this issue to you?
- Guest live migration fails with an error about invalid vCPU register
Please provide the package NVR for which the bug is seen:
[root@hpe-apollo-cn99xx-16 ~]# rpm -q qemu-kvm libvirt kernel
qemu-kvm-9.0.0-10.el9_5.aarch64
libvirt-10.5.0-7.el9_5.aarch64
kernel-5.14.0-503.11.1.el9_5.aarch64
[root@hpe-apollo-cn99xx-16 ~]#
[root@hpe-apollo-cn99xx-22 ~]# rpm -q qemu-kvm libvirt kernel
qemu-kvm-9.0.0-10.el9_5.aarch64
libvirt-10.5.0-7.el9_5.aarch64
kernel-5.14.0-503.11.1.el9_5.aarch64
[root@hpe-apollo-cn99xx-22 ~]#
How reproducible is this bug?:
- 100%
Steps to reproduce
- Set up NFS shares between above two machines
- Created an Aarch64 guest
- Live migrate the guest with the above virsh(1) command
Expected results
- Migration should complete successfully
Actual results
- Migration fails with an error message about invalid vCPU register
2025-03-27T10:59:26.813434Z qemu-system-aarch64: error while loading state for instance 0x0 of device 'cpu' 2025-03-27T10:59:26.816150Z qemu-system-aarch64: Failed to put registers after init: Invalid argument 2025-03-27 10:59:27.220+0000: shutting down, reason=crashed #0 write_list_to_kvmstate (cpu=0xaaaad68747b0, level=3) at ../target/arm/kvm.c:950 #1 cpu_post_load (opaque=0xaaaad68747b0, version_id=22) at ../target/arm/machine.c:830 #2 vmstate_load_state (f=0xaaaad7774400, vmsd=0xaaaacea62860 <vmstate_arm_cpu>, opaque=0xaaaad68747b0, version_id=22) at ../migration/vmstate.c:186 #3 vmstate_load (f=0xaaaad7774400, se=0xaaaad688b6f0) at ../migration/savevm.c:957 #4 qemu_loadvm_section_start_full (f=0xaaaad7774400, mis=0xaaaad6668410, type=4 '\004') at ../migration/savevm.c:2635 #5 qemu_loadvm_state_main (f=0xaaaad7774400, mis=0xaaaad6668410) at ../migration/savevm.c:2890 #6 qemu_loadvm_state (f=0xaaaad7774400) at ../migration/savevm.c:2973 #7 process_incoming_migration_co (opaque=0x0) at ../migration/migration.c:779 #8 coroutine_trampoline (i0=-696287840, i1=43690) at ../util/coroutine-ucontext.c:175 #9 0x0000ffff7fe36780 in ?? () from target:/lib64/libc.so.6 Thread 1 "qemu-system-aar": i=252, 253, Thread 5 "CPU 0/KVM": i=252, 253 write_list_to_kvmstate case KVM_REG_SIZE_U64: ret = kvm_set_one_reg(cs, regidx, cpu->cpreg_values + i);
- is duplicated by
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- Closed
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