[Bug 1924494] Re: Systemd shutdown order unmounts filesystem used by qemu/kvm guest before shutting down the guest

[Dan Streetman]

** Package changed: systemd (Ubuntu) => libvirt (Ubuntu)

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Title:
  Systemd shutdown order unmounts filesystem used by qemu/kvm guest
  before shutting down the guest

Status in libvirt package in Ubuntu:
  New

Bug description:
  Last night I started a reboot without manually shutting down a
  qemu/kvm guest first.   After X went down a bunch of I/O errors
  associated with a network block device that contains a NTFS filesystem
  showed up on the console.   I noticed that the umount.target had been
  reached but the virt-guest-shutdown.target was still waiting for the
  guest to shut down, until it timed out.

  Wouldn't it be beneficial for all guests to be shutdown before
  unmounting all filesystems?

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: systemd 246.6-1ubuntu1.3
  ProcVersionSignature: Ubuntu 5.8.0-49.55-generic 5.8.18
  Uname: Linux 5.8.0-49-generic x86_64
  ApportVersion: 2.20.11-0ubuntu50.5
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Thu Apr 15 08:35:48 2021
  InstallationDate: Installed on 2021-01-17 (88 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  MachineType: HP HP ZBook 15u G6
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-49-generic root=UUID=25df7fed-1baf-421e-941e-7f7c280db6e8 ro iommu=pt intel_iommu=on default_hugepagesz=1G hugepagesz=1G hugepages=6 pcie_aspm.policy=performance
  SourcePackage: systemd
  UpgradeStatus: Upgraded to groovy on 2021-04-08 (6 days ago)
  dmi.bios.date: 01/08/2021
  dmi.bios.release: 8.1
  dmi.bios.vendor: HP
  dmi.bios.version: R70 Ver. 01.08.01
  dmi.board.name: 8549
  dmi.board.vendor: HP
  dmi.board.version: KBC Version 52.67.00
  dmi.chassis.type: 10
  dmi.chassis.vendor: HP
  dmi.ec.firmware.release: 82.103
  dmi.modalias: dmi:bvnHP:bvrR70Ver.01.08.01:bd01/08/2021:br8.1:efr82.103:svnHP:pnHPZBook15uG6:pvr:rvnHP:rn8549:rvrKBCVersion52.67.00:cvnHP:ct10:cvr:
  dmi.product.family: 103C_5336AN HP ZBook
  dmi.product.name: HP ZBook 15u G6
  dmi.product.sku: 9AP56LP#ABA
  dmi.sys.vendor: HP

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