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[Bug 1754584] Re: zfs system process hung on container stop/delete

To: group.of.nepali.translators@xxxxxxxxxxxxxxxxxxx
From: Colin Ian King <1754584@xxxxxxxxxxxxxxxxxx>
Date: Wed, 28 Mar 2018 14:57:07 -0000
Reply-to: Bug 1754584 <1754584@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Information type changed from Private to Public

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: zfs-linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Xenial)
       Status: New => Triaged

** Changed in: zfs-linux (Ubuntu Xenial)
       Status: New => Invalid

** Changed in: zfs-linux (Ubuntu Artful)
       Status: New => In Progress

** Changed in: zfs-linux (Ubuntu Xenial)
       Status: Invalid => In Progress

** Changed in: linux (Ubuntu Xenial)
       Status: Triaged => In Progress

** Changed in: linux (Ubuntu Artful)
       Status: Triaged => In Progress

** Changed in: linux (Ubuntu Xenial)
   Importance: Undecided => High

** Changed in: zfs-linux (Ubuntu Xenial)
   Importance: Undecided => High

** Changed in: zfs-linux (Ubuntu Xenial)
     Assignee: (unassigned) => Colin Ian King (colin-king)

** Changed in: linux (Ubuntu Xenial)
     Assignee: (unassigned) => Colin Ian King (colin-king)

** Changed in: linux (Ubuntu Artful)
     Assignee: (unassigned) => Colin Ian King (colin-king)

** Changed in: linux (Ubuntu Bionic)
     Assignee: (unassigned) => Colin Ian King (colin-king)

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https://bugs.launchpad.net/bugs/1754584

Title:
  zfs system process hung on container stop/delete

Status in Native ZFS for Linux:
  New
Status in linux package in Ubuntu:
  Fix Committed
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  In Progress
Status in zfs-linux source package in Xenial:
  In Progress
Status in linux source package in Artful:
  In Progress
Status in zfs-linux source package in Artful:
  In Progress
Status in linux source package in Bionic:
  Fix Committed
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  Summary:
  On a Bionic system running 4.15.0-10-generic, after attempting to build libaio in a Bionic daily container I cannot stop or delete the container. dmesg shows a variety of hung tasks

  Steps to Reproduce:
  Use the following script and watch for the the hang. At that point attempt to stop or delete the container: http://paste.ubuntu.com/p/SxfgbxM8v7/

  Originally filed against LXD: https://github.com/lxc/lxd/issues/4314

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-4.15.0-10-generic 4.15.0-10.11
  ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3
  Uname: Linux 4.15.0-10-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.8-0ubuntu10
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  powersj    2414 F.... pulseaudio
   /dev/snd/controlC0:  powersj    2414 F.... pulseaudio
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Mar  9 09:19:11 2018
  HibernationDevice: RESUME=UUID=40a4eb28-4454-44f0-a377-ea611ce685bb
  InstallationDate: Installed on 2018-02-19 (17 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180214)
  Lsusb:
   Bus 001 Device 002: ID 8087:8001 Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 002 Device 002: ID 04f2:b45d Chicony Electronics Co., Ltd 
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 20BSCTO1WW
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-10-generic root=/dev/mapper/ubuntu--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.15.0-10-generic N/A
   linux-backports-modules-4.15.0-10-generic  N/A
   linux-firmware                             1.172
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/13/2017
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N14ET42W (1.20 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20BSCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50512 STD
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN14ET42W(1.20):bd09/13/2017:svnLENOVO:pn20BSCTO1WW:pvrThinkPadX1Carbon3rd:rvnLENOVO:rn20BSCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad X1 Carbon 3rd
  dmi.product.name: 20BSCTO1WW
  dmi.product.version: ThinkPad X1 Carbon 3rd
  dmi.sys.vendor: LENOVO
  --- 
  ApportVersion: 2.20.8-0ubuntu10
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  powersj    1878 F.... pulseaudio
   /dev/snd/controlC0:  powersj    1878 F.... pulseaudio
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 18.04
  HibernationDevice: RESUME=UUID=40a4eb28-4454-44f0-a377-ea611ce685bb
  InstallationDate: Installed on 2018-02-19 (17 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180214)
  Lsusb:
   Bus 001 Device 002: ID 8087:8001 Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 002 Device 002: ID 04f2:b45d Chicony Electronics Co., Ltd 
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 20BSCTO1WW
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-12-generic root=/dev/mapper/ubuntu--vg-root ro
  ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
  RelatedPackageVersions:
   linux-restricted-modules-4.15.0-12-generic N/A
   linux-backports-modules-4.15.0-12-generic  N/A
   linux-firmware                             1.172
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  Tags:  bionic
  Uname: Linux 4.15.0-12-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip libvirt lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 09/13/2017
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N14ET42W (1.20 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20BSCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50512 STD
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN14ET42W(1.20):bd09/13/2017:svnLENOVO:pn20BSCTO1WW:pvrThinkPadX1Carbon3rd:rvnLENOVO:rn20BSCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad X1 Carbon 3rd
  dmi.product.name: 20BSCTO1WW
  dmi.product.version: ThinkPad X1 Carbon 3rd
  dmi.sys.vendor: LENOVO

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