Package: libvirt-daemon-driver-qemu
Version: 11.3.0-3+deb13u2
Severity: important
Dear Maintainer,
After upgrading our VM hosts from Debian 12 to Debian 13 (trixie),
live migration of VMs from the upgraded hosts started failing.
The affected hosts use:
libvirt 11.3.0-3+deb13u2
qemu-system-x86 1:11.0.2+ds-2~bpo13+1
The QEMU processes were restarted after the Debian upgrade, so all
running VMs were using the new QEMU version.
I attempted a normal live migration using virsh, for example:
virsh -c qemu+ssh://SOURCE/system migrate \
--live --persistent --undefinesource \
VMNAME \
qemu+ssh://DEST/system \
tcp://migrate.DEST/
The migration fails with:
error: internal error: unable to execute QEMU command 'migrate':
Parameter 'detach' is unexpected
The problem can also be reproduced directly through QMP:
virsh qemu-monitor-command VMNAME --pretty \
'{"execute":"migrate","arguments":{"detach":true}}'
QEMU 11 responds with:
Parameter 'detach' is unexpected
I locally backported the upstream libvirt change
"qemuMonitorJSONMigrate: Drop 'detach' QMP option" to
11.3.0-3+deb13u2.
After rebuilding and installing the modified libvirt package,
live migration works successfully again.
I therefore believe the Debian trixie libvirt package needs the
upstream fix for compatibility with QEMU 11.
Please consider backporting this upstream fix to the trixie package.
Alternatively, a newer libvirt version could be made available
through trixie-backports.
Upstream patch:
https://www.mail-archive.com/[email protected]/msg10575.html
-- System Information:
Debian Release: 13.6
APT prefers stable-security
APT policy: (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 7.1.8+deb13-amd64 (SMP w/24 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE
not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages libvirt-daemon-driver-qemu depends on:
ii adduser 3.152
ii debconf [debconf-2.0] 1.5.91
ii libc6 2.41-12+deb13u3
ii libgcc-s1 14.2.0-19
ii libglib2.0-0t64 2.84.4-3~deb13u3
ii libgnutls30t64 3.8.9-3+deb13u4
ii libselinux1 3.8.1-1
ii libvirt-common 11.3.0-3+deb13u2
ii libvirt-daemon-log 11.3.0-3+deb13u2
ii libvirt0 11.3.0-3+deb13u2
ii libxml2 2.12.7+dfsg+really2.9.14-2.1+deb13u3
ii logrotate 3.22.0-1
ii qemu-system 1:11.0.2+ds-2~bpo13+1
ii qemu-system-x86 [qemu-kvm] 1:11.0.2+ds-2~bpo13+1
ii systemd-container 257.13-1~deb13u1
Versions of packages libvirt-daemon-driver-qemu recommends:
ii passt 0.0~git20250503.587980c-2+deb13u1
pn swtpm <none>
pn swtpm-tools <none>
Versions of packages libvirt-daemon-driver-qemu suggests:
pn numad <none>
-- Configuration Files:
/etc/logrotate.d/libvirtd.qemu changed [not included]
-- debconf information:
libvirt-daemon-driver-qemu/id_warning: true
