Public bug reported:

Starting a few days ago, my jammy desktop hangs for several minutes when
trying to reboot or shut down. The console always seems to report the
problem is:

  systemd-shutdown[1]: Waiting for process pulseaudio

Followed by repeated SIGTERM and SIGKILL retries. Although the system
log (journalctl -b-1) does not seem to show the same kernel messages or
show the same multi-minute delay that I suffer every time.

It seems unlikely pulseaudio is actually the cause since that's been
unchanged for months. More likely a kernel or systemd change, both of
which received updates in the past few days.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-18-generic 5.15.0-18.18
ProcVersionSignature: Ubuntu 5.15.0-18.18-generic 5.15.12
Uname: Linux 5.15.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu76
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', 
'/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D2', 
'/dev/snd/pcmC0D5p', '/dev/snd/pcmC0D4p', '/dev/snd/pcmC0D3p', 
'/dev/snd/pcmC0D1c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', 
'/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D7c', '/dev/snd/pcmC0D6c', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
CasperMD5CheckResult: pass
Date: Tue Feb  1 14:19:43 2022
InstallationDate: Installed on 2021-11-05 (87 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Alpha amd64 (20211103)
MachineType: Intel(R) Client Systems NUC9i7QNX
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-18-generic 
root=UUID=70e2069c-a553-4c6d-abfc-c65e52cb3b43 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.15.0-18-generic N/A
 linux-backports-modules-5.15.0-18-generic  N/A
 linux-firmware                             20220124.git0c6a7b3b-0ubuntu1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/25/2019
dmi.bios.release: 5.13
dmi.bios.vendor: Intel Corp.
dmi.bios.version: QXCFL579.0034.2019.1125.1436
dmi.board.name: NUC9i7QNB
dmi.board.vendor: Intel Corporation
dmi.board.version: K49245-402
dmi.chassis.type: 35
dmi.chassis.vendor: Intel Corporation
dmi.chassis.version: 2.0
dmi.ec.firmware.release: 24.33
dmi.modalias: 
dmi:bvnIntelCorp.:bvrQXCFL579.0034.2019.1125.1436:bd11/25/2019:br5.13:efr24.33:svnIntel(R)ClientSystems:pnNUC9i7QNX:pvrK49244-403:rvnIntelCorporation:rnNUC9i7QNB:rvrK49245-402:cvnIntelCorporation:ct35:cvr2.0:skuBXNUC9i7QNX:
dmi.product.family: QN
dmi.product.name: NUC9i7QNX
dmi.product.sku: BXNUC9i7QNX
dmi.product.version: K49244-403
dmi.sys.vendor: Intel(R) Client Systems

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug jammy performance regression-release

** Also affects: systemd (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1959652

Title:
  [regression] Jammy reboot/shutdown hangs for several minutes

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