Greetings,
my windows vm stoop working, I think it is related kernel version, 6.14.1 works
but 6.14.2 seems not to
looking at the libvirt-qemu log file shows this:
2025-04-22 17:28:52.082+0000: starting up libvirt version: 11.2.0, qemu
version: 9.2.3, kernel: 6.14.3-gentoo, hostname: NCC-5001D.lan
LC_ALL=C \
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/usr/lib/llvm/19/bin:/etc/eselect/wine/bin:/opt/cuda/bin
\
HOME=/var/lib/libvirt/qemu/domain-1-windows \
USER=root \
XDG_DATA_HOME=/var/lib/libvirt/qemu/domain-1-windows/.local/share \
XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain-1-windows/.cache \
XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain-1-windows/.config \
/usr/bin/qemu-system-x86_64 \
-name guest=windows,debug-threads=on \
-S \
-object
'{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain-1-windows/master-key.aes"}'
\
-blockdev
'{"driver":"file","filename":"/usr/share/edk2/OvmfX64/OVMF_CODE_4M.secboot.qcow2","node-name":"libvirt-pflash0-storage","auto-read-only":true,"discard":"unmap"}'
\
-blockdev
'{"node-name":"libvirt-pflash0-format","read-only":true,"driver":"qcow2","file":"libvirt-pflash0-storage","backing":null}'
\
-blockdev
'{"driver":"file","filename":"/var/lib/libvirt/qemu/nvram/windows_VARS.qcow2","node-name":"libvirt-pflash1-storage","auto-read-only":true,"discard":"unmap"}'
\
-blockdev
'{"node-name":"libvirt-pflash1-format","read-only":false,"driver":"qcow2","file":"libvirt-pflash1-storage","backing":null}'
\
-machine
pc-q35-8.1,usb=off,smm=on,dump-guest-core=off,pflash0=libvirt-pflash0-format,pflash1=libvirt-pflash1-format,hpet=off,acpi=on
\
-accel kvm \
-cpu
host,migratable=on,topoext=on,hv-time=on,hv-relaxed=on,hv-vapic=on,hv-spinlocks=0x1fff,hv-vendor-id=wateverr,kvm=off,host-cache-info=on,l3-cache=off
\
-global driver=cfi.pflash01,property=secure,value=on \
-m size=31457280k \
-overcommit mem-lock=off \
-smp 16,sockets=1,dies=1,clusters=1,cores=8,threads=2 \
-object
'{"qom-type":"memory-backend-memfd","id":"ram-node0","share":true,"size":32212254720}'
\
-numa node,nodeid=0,cpus=0-15,memdev=ram-node0 \
-uuid e8fc4f01-5b87-4e2d-a30f-fb72318688f7 \
-display none \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,fd=27,server=on,wait=off \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=localtime,driftfix=slew \
-global kvm-pit.lost_tick_policy=delay \
-no-shutdown \
-global ICH9-LPC.disable_s3=1 \
-global ICH9-LPC.disable_s4=1 \
-boot strict=on \
-device
'{"driver":"pcie-root-port","port":16,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x2"}'
\
-device
'{"driver":"pcie-root-port","port":17,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x2.0x1"}'
\
-device
'{"driver":"pcie-root-port","port":18,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x2.0x2"}'
\
-device
'{"driver":"pcie-root-port","port":19,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x2.0x3"}'
\
-device
'{"driver":"pcie-root-port","port":20,"chassis":5,"id":"pci.5","bus":"pcie.0","addr":"0x2.0x4"}'
\
-device
'{"driver":"pcie-root-port","port":21,"chassis":6,"id":"pci.6","bus":"pcie.0","addr":"0x2.0x5"}'
\
-device
'{"driver":"pcie-root-port","port":22,"chassis":7,"id":"pci.7","bus":"pcie.0","addr":"0x2.0x6"}'
\
-device
'{"driver":"pcie-root-port","port":23,"chassis":8,"id":"pci.8","bus":"pcie.0","addr":"0x2.0x7"}'
\
-device
'{"driver":"pcie-root-port","port":24,"chassis":9,"id":"pci.9","bus":"pcie.0","multifunction":true,"addr":"0x3"}'
\
-device
'{"driver":"pcie-root-port","port":25,"chassis":10,"id":"pci.10","bus":"pcie.0","addr":"0x3.0x1"}'
\
-device
'{"driver":"pcie-root-port","port":26,"chassis":11,"id":"pci.11","bus":"pcie.0","addr":"0x3.0x2"}'
\
-device
'{"driver":"pcie-root-port","port":27,"chassis":12,"id":"pci.12","bus":"pcie.0","addr":"0x3.0x3"}'
\
-device
'{"driver":"pcie-root-port","port":28,"chassis":13,"id":"pci.13","bus":"pcie.0","addr":"0x3.0x4"}'
\
-device
'{"driver":"pcie-root-port","port":29,"chassis":14,"id":"pci.14","bus":"pcie.0","addr":"0x3.0x5"}'
\
-device
'{"driver":"qemu-xhci","p2":15,"p3":15,"id":"usb","bus":"pci.2","addr":"0x0"}' \
-device '{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pcie.0","addr":"0xc"}'
\
-blockdev
'{"driver":"file","filename":"/usr/share/drivers/windows/virtio-win.iso","node-name":"libvirt-1-storage","read-only":true}'
\
-device
'{"driver":"ide-cd","bus":"ide.1","drive":"libvirt-1-storage","id":"sata0-0-1"}'
\
-chardev
socket,id=chr-vu-fs0,path=/var/lib/libvirt/qemu/domain-1-windows/fs0-fs.sock \
-device
'{"driver":"vhost-user-fs-pci","id":"fs0","chardev":"chr-vu-fs0","queue-size":1024,"tag":"home@linux","bus":"pci.6","addr":"0x0"}'
\
-netdev '{"type":"tap","fd":"29","vhost":true,"vhostfd":"31","id":"hostnet0"}' \
-device
'{"driver":"virtio-net-pci","netdev":"hostnet0","id":"net0","mac":"52:54:00:43:79:55","bus":"pci.1","addr":"0x0"}'
\
-chardev pty,id=charserial0 \
-device
'{"driver":"isa-serial","chardev":"charserial0","id":"serial0","index":0}' \
-chardev socket,id=chrtpm,path=/run/libvirt/qemu/swtpm/1-windows-swtpm.sock \
-tpmdev emulator,id=tpm-tpm0,chardev=chrtpm \
-device '{"driver":"tpm-tis","tpmdev":"tpm-tpm0","id":"tpm0"}' \
-object
'{"qom-type":"input-linux","id":"input0","evdev":"/var/lib/libvirt/helpers_state/windows/mouse-event"}'
\
-object
'{"qom-type":"input-linux","id":"input1","evdev":"/var/lib/libvirt/helpers_state/windows/keyboard-event","repeat":true,"grab_all":true,"grab-toggle":"ctrl-ctrl"}'
\
-audiodev '{"id":"audio1","driver":"none"}' \
-global ICH9-LPC.noreboot=off \
-watchdog-action reset \
-device
'{"driver":"vfio-pci","host":"0000:06:00.0","id":"hostdev0","bus":"pci.5","multifunction":true,"addr":"0x0","romfile":"/var/lib/libvirt/roms/gpu-10de:1c82-uefi.rom"}'
\
-device
'{"driver":"vfio-pci","host":"0000:06:00.1","id":"hostdev1","bus":"pci.5","addr":"0x0.0x1"}'
\
-device
'{"driver":"vfio-pci","host":"0000:04:00.1","id":"hostdev2","bus":"pci.7","addr":"0x0"}'
\
-device
'{"driver":"vfio-pci","host":"0000:08:00.4","id":"hostdev3","bus":"pci.4","addr":"0x0"}'
\
-device
'{"driver":"vfio-pci","host":"0000:03:00.0","id":"hostdev4","bus":"pci.9","addr":"0x0"}'
\
-device
'{"driver":"usb-host","hostdevice":"/dev/bus/usb/003/002","id":"hostdev5","bus":"usb.0","port":"1"}'
\
-device '{"driver":"usb-host","id":"hostdev6","bus":"usb.0","port":"2"}' \
-device
'{"driver":"usb-host","hostdevice":"/dev/bus/usb/001/002","id":"hostdev7","bus":"usb.0","port":"3"}'
\
-device
'{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.3","addr":"0x0"}' \
-sandbox
on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
-msg timestamp=on
2025-04-22 17:28:52.084+0000: 5390: debug : virProcessSetMaxMemLock:923 :
Locked memory for process 5390 limited to 33285996544 bytes
2025-04-22 17:28:52.084+0000: 5390: debug : virExec:881 : Run hook
0x7fb3b82902a0 0x7fb3bb4435d0
2025-04-22 17:28:52.084+0000: 5390: debug : qemuProcessHook:3136 : Obtaining
domain lock
2025-04-22 17:28:52.084+0000: 5390: debug : virDomainLockProcessStart:175 :
plugin=0x7fb37016de00 dom=0x7fb3704b9bd0 paused=1 fd=0x7fb3bb4432f0
2025-04-22 17:28:52.084+0000: 5390: debug : virDomainLockManagerNew:130 :
plugin=0x7fb37016de00 dom=0x7fb3704b9bd0 withResources=1
2025-04-22 17:28:52.084+0000: 5390: debug : virLockManagerPluginGetDriver:275 :
plugin=0x7fb37016de00
2025-04-22 17:28:52.084+0000: 5390: debug : virLockManagerNew:298 :
driver=0x7fb3c09e5440 type=0 nparams=5 params=0x7fb3bb4431d0 flags=0x1
2025-04-22 17:28:52.084+0000: 5390: debug : virLockManagerLogParams:96 :
key=uuid type=uuid value=e8fc4f01-5b87-4e2d-a30f-fb72318688f7
2025-04-22 17:28:52.084+0000: 5390: debug : virLockManagerLogParams:89 :
key=name type=string value=windows
2025-04-22 17:28:52.084+0000: 5390: debug : virLockManagerLogParams:77 :
key=id type=uint value=1
2025-04-22 17:28:52.084+0000: 5390: debug : virLockManagerLogParams:77 :
key=pid type=uint value=5390
2025-04-22 17:28:52.084+0000: 5390: debug : virLockManagerLogParams:92 :
key=uri type=cstring value=qemu:///system
2025-04-22 17:28:52.084+0000: 5390: debug : virDomainLockManagerNew:143 :
Adding leases
2025-04-22 17:28:52.084+0000: 5390: debug : virDomainLockManagerNew:148 :
Adding disks
2025-04-22 17:28:52.084+0000: 5390: debug : virDomainLockManagerAddImage:87 :
Add disk /usr/share/drivers/windows/virtio-win.iso
2025-04-22 17:28:52.084+0000: 5390: debug : virLockManagerAddResource:324 :
lock=0x7fb3b0044350 type=0 name=/usr/share/drivers/windows/virtio-win.iso
nparams=0 params=(nil) flags=0x1
2025-04-22 17:28:52.084+0000: 5390: debug : virLockManagerAcquire:342 :
lock=0x7fb3b0044350 state='<null>' flags=0x3 action=0 fd=0x7fb3bb4432f0
2025-04-22 17:28:52.084+0000: 5390: debug : virLockManagerFree:380 :
lock=0x7fb3b0044350
2025-04-22 17:28:52.084+0000: 5390: info : virObjectUnref:378 : OBJECT_UNREF:
obj=0x7fb370114eb0
2025-04-22 17:28:52.084+0000: 5390: debug : qemuProcessHook:3181 : Hook
complete ret=0
2025-04-22 17:28:52.084+0000: 5390: debug : virExec:883 : Done hook 0
2025-04-22 17:28:52.084+0000: 5390: debug : virExecCommon:456 : Setting child
uid:gid to 77:77 with caps 0
2025-04-22 17:28:52.084+0000: 5390: debug : virCommandHandshakeChild:402 :
Notifying parent for handshake start on 33
2025-04-22 17:28:52.084+0000: 5390: debug : virCommandHandshakeChild:410 :
Waiting on parent for handshake complete on 34
2025-04-22 17:28:52.100+0000: 5390: error : virCommandHandshakeChild:418 :
libvirtd quit during handshake: Input/output error
libvirt: error : libvirtd quit during handshake: Input/output error
2025-04-22 17:28:52.100+0000: shutting down, reason=failed
any hints on what can cause the handshake error?
