Bug 2007640

Description of problem:
Guys from #virt channel who helped me with debugging wanted me to mention this:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993145
also:
<jtomko> mprivozn: fixed by 118d527f2e4baec5fe8060b22a6212468b8e4d3f

Version-Release number of selected component (if applicable):
qemu-kvm-6.1.0-3.el9.x86_64
virt-manager-3.2.0-9.el9.noarch

How reproducible:
always

Steps to Reproduce:
1.Open virt-manager
2.start vm
3.Open vm console

1. virt-viewer --attach rhel9.0

Actual results:
blank window is opened, vm shuts down, windows just show message guest is not running

Expected results:
VM console should be loaded

Additional info:
The VM is not restarted when I use other vnc client to connect to VM.


Contents of /var/log/libvirt/qemu/rhel9.0.log:
2021-09-24 12:17:17.647+0000: starting up libvirt version: 7.6.0, package: 2.el9 (Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>, 2021-08-10-04:33:30, ), qemu version: 6.1.0qemu-kvm-6.1.0-2.el9, kernel: 5.14.0-2.el9.x86_64, hostname: localhost.localdomain
LC_ALL=C \
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin \
HOME=/var/lib/libvirt/qemu/domain-1-rhel9.0 \
XDG_DATA_HOME=/var/lib/libvirt/qemu/domain-1-rhel9.0/.local/share \
XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain-1-rhel9.0/.cache \
XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain-1-rhel9.0/.config \
/usr/libexec/qemu-kvm \
-name guest=rhel9.0,debug-threads=on \
-S \
-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain-1-rhel9.0/master-key.aes"}' \
-machine pc-q35-rhel8.5.0,accel=kvm,usb=off,dump-guest-core=off,memory-backend=pc.ram \
-cpu Skylake-Client-IBRS,ss=on,vmx=on,pdcm=on,hypervisor=on,tsc-adjust=on,clflushopt=on,umip=on,md-clear=on,stibp=on,arch-capabilities=on,ssbd=on,xsaves=on,pdpe1gb=on,ibpb=on,ibrs=on,amd-stibp=on,amd-ssbd=on,rdctl-no=on,ibrs-all=on,skip-l1dfl-vmentry=on,mds-no=on,pschange-mc-no=on,tsx-ctrl=on,hle=off,rtm=off \
-m 4096 \
-object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":4294967296}' \
-overcommit mem-lock=off \
-smp 2,sockets=2,cores=1,threads=1 \
-uuid 3e8fbf23-5245-4cd2-8bfe-52e36a9ebe35 \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,fd=32,server=on,wait=off \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc,driftfix=slew \
-global kvm-pit.lost_tick_policy=delay \
-no-hpet \
-no-shutdown \
-global ICH9-LPC.disable_s3=1 \
-global ICH9-LPC.disable_s4=1 \
-boot strict=on \
-device pcie-root-port,port=0x10,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x2 \
-device pcie-root-port,port=0x11,chassis=2,id=pci.2,bus=pcie.0,addr=0x2.0x1 \
-device pcie-root-port,port=0x12,chassis=3,id=pci.3,bus=pcie.0,addr=0x2.0x2 \
-device pcie-root-port,port=0x13,chassis=4,id=pci.4,bus=pcie.0,addr=0x2.0x3 \
-device pcie-root-port,port=0x14,chassis=5,id=pci.5,bus=pcie.0,addr=0x2.0x4 \
-device pcie-root-port,port=0x15,chassis=6,id=pci.6,bus=pcie.0,addr=0x2.0x5 \
-device pcie-root-port,port=0x16,chassis=7,id=pci.7,bus=pcie.0,addr=0x2.0x6 \
-device qemu-xhci,p2=15,p3=15,id=usb,bus=pci.2,addr=0x0 \
-device virtio-serial-pci,id=virtio-serial0,bus=pci.3,addr=0x0 \
-blockdev '{"driver":"file","filename":"/home/mkrajnak/storage/RHEL-9.0.0-20210107.0-BaseOS-x86_64.qcow2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage","backing":null}' \
-device virtio-blk-pci,bus=pci.4,addr=0x0,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
-netdev tap,fd=34,id=hostnet0,vhost=on,vhostfd=35 \
-device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:8e:59:a4,bus=pci.1,addr=0x0 \
-chardev pty,id=charserial0 \
-device isa-serial,chardev=charserial0,id=serial0 \
-chardev socket,id=charchannel0,fd=36,server=on,wait=off \
-device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 \
-device usb-tablet,id=input0,bus=usb.0,port=1 \
-audiodev id=audio1,driver=none \
-vnc 127.0.0.1:0,audiodev=audio1 \
-device VGA,id=video0,vgamem_mb=16,bus=pcie.0,addr=0x1 \
-device virtio-balloon-pci,id=balloon0,bus=pci.5,addr=0x0 \
-object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/urandom"}' \
-device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.6,addr=0x0 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
-msg timestamp=on
char device redirected to /dev/pts/3 (label charserial0)
qemu-kvm: ../util/qemu-sockets.c:1349: SocketAddress *socket_sockaddr_to_address_unix(struct sockaddr_storage *, socklen_t, Error **): Assertion `salen >= sizeof(su->sun_family) + 1 && salen <= sizeof(struct sockaddr_un)' failed.
2021-09-24 12:17:22.758+0000: shutting down, reason=crashed



Output of virt-manager --debug:
[Fri, 24 Sep 2021 14:04:25 virt-manager 3982] DEBUG (vmmenu:230) Starting vm 'rhel9.0'
[Fri, 24 Sep 2021 14:04:26 virt-manager 3982] DEBUG (connection:706) node device lifecycle event: nodedev=net_vnet1_fe_54_00_8e_59_a4 state=VIR_NODE_DEVICE_EVENT_CREATED reason=0
[Fri, 24 Sep 2021 14:04:26 virt-manager 3982] DEBUG (connection:646) domain agent lifecycle event: domain=rhel9.0 state=VIR_CONNECT_DOMAIN_EVENT_AGENT_LIFECYCLE_STATE_DISCONNECTED reason=1
[Fri, 24 Sep 2021 14:04:26 virt-manager 3982] DEBUG (connection:631) domain lifecycle event: domain=rhel9.0 state=VIR_DOMAIN_EVENT_RESUMED reason=VIR_DOMAIN_EVENT_RESUMED_UNPAUSED
[Fri, 24 Sep 2021 14:04:26 virt-manager 3982] DEBUG (connection:631) domain lifecycle event: domain=rhel9.0 state=VIR_DOMAIN_EVENT_STARTED reason=VIR_DOMAIN_EVENT_STARTED_BOOTED
[Fri, 24 Sep 2021 14:04:31 virt-manager 3982] DEBUG (connection:646) domain agent lifecycle event: domain=rhel9.0 state=VIR_CONNECT_DOMAIN_EVENT_AGENT_LIFECYCLE_STATE_CONNECTED reason=2
[Fri, 24 Sep 2021 14:04:34 virt-manager 3982] DEBUG (serialcon:17) Using VTE API 2.91
[Fri, 24 Sep 2021 14:04:34 virt-manager 3982] DEBUG (xmleditor:12) Using GtkSource 4
[Fri, 24 Sep 2021 14:04:35 virt-manager 3982] DEBUG (vmwindow:184) Showing VM details: <vmmDomain name=rhel9.0 id=0x7efcec2734c0>
[Fri, 24 Sep 2021 14:04:35 virt-manager 3982] DEBUG (engine:316) window counter incremented to 2
[Fri, 24 Sep 2021 14:04:35 virt-manager 3982] DEBUG (console:721) Starting connect process for proto=vnc trans= connhost=127.0.0.1 connuser= connport= gaddr=127.0.0.1 gport=5900 gtlsport=None gsocket=None
[Fri, 24 Sep 2021 14:04:35 virt-manager 3982] ERROR (console:736) Error connecting to graphical console
Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/details/console.py", line 734, in _init_viewer
    self._viewer.console_open()
  File "/usr/share/virt-manager/virtManager/details/viewers.py", line 215, in console_open
    return self._open()
  File "/usr/share/virt-manager/virtManager/details/viewers.py", line 429, in _open
    return Viewer._open(self)
  File "/usr/share/virt-manager/virtManager/details/viewers.py", line 134, in _open
    fd = self._get_fd_for_open()
  File "/usr/share/virt-manager/virtManager/details/viewers.py", line 128, in _get_fd_for_open
    return self._vm.open_graphics_fd()
  File "/usr/share/virt-manager/virtManager/object/domain.py", line 1095, in open_graphics_fd
    return self._backend.openGraphicsFD(0, flags)
  File "/usr/lib64/python3.9/site-packages/libvirt.py", line 2240, in openGraphicsFD
    raise libvirtError('virDomainOpenGraphicsFD() failed')
libvirt.libvirtError: Unable to read from monitor: Connection reset by peer
[Fri, 24 Sep 2021 14:04:35 virt-manager 3982] DEBUG (console:592) Viewer disconnected
[Fri, 24 Sep 2021 14:04:35 virt-manager 3982] DEBUG (connection:706) node device lifecycle event: nodedev=net_vnet1_fe_54_00_8e_59_a4 state=VIR_NODE_DEVICE_EVENT_DELETED reason=0
[Fri, 24 Sep 2021 14:04:35 virt-manager 3982] DEBUG (connection:1050) nodedev=net_vnet1_fe_54_00_8e_59_a4 removed
[Fri, 24 Sep 2021 14:04:35 virt-manager 3982] DEBUG (connection:631) domain lifecycle event: domain=rhel9.0 state=VIR_DOMAIN_EVENT_STOPPED reason=VIR_DOMAIN_EVENT_STOPPED_FAILED