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[Bug 1531934] [NEW] OSError: [Errno 16] Device or resource busy: 'home'

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Public bug reported:

On a fresh Xenial install, with encrypted home (ecryptfs) creation of
click chroots always fails:

$ sudo click chroot -aamd64 -fubuntu-sdk-15.10 create
[...]
E: 10mount: umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892/home/cris: target is busy
E: 10mount:         (In some cases useful info about processes that
E: 10mount:          use the device is found by lsof(8) or fuser(1).)
E: click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892: Chroot setup failed: stage=setup-stop
Command returned 1: schroot -u root -c source:click-ubuntu-sdk-15.10-amd64 -- /finish.sh
umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892/home/cris: target is busy
        (In some cases useful info about processes that
         use the device is found by lsof(8) or fuser(1).)
umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892/home: target is busy
        (In some cases useful info about processes that
         use the device is found by lsof(8) or fuser(1).)
umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892: target is busy
        (In some cases useful info about processes that
         use the device is found by lsof(8) or fuser(1).)
Traceback (most recent call last):
  File "/usr/bin/click", line 110, in <module>
    sys.exit(main())
  File "/usr/bin/click", line 106, in main
    return mod.run(args)
  File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 266, in run
    return args.func(parser, args)
  File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 68, in create
    return chroot.create(args.keep_broken_chroot)
  File "/usr/lib/python3/dist-packages/click/chroot.py", line 596, in create
    self.destroy()
  File "/usr/lib/python3/dist-packages/click/chroot.py", line 694, in destroy
    shutil.rmtree(chroot_dir)
  File "/usr/lib/python3.5/shutil.py", line 474, in rmtree
    _rmtree_safe_fd(fd, path, onerror)
  File "/usr/lib/python3.5/shutil.py", line 416, in _rmtree_safe_fd
    onerror(os.rmdir, fullname, sys.exc_info())
  File "/usr/lib/python3.5/shutil.py", line 414, in _rmtree_safe_fd
    os.rmdir(name, dir_fd=topfd)
OSError: [Errno 16] Device or resource busy: 'home'

This leaves me in an inconsistent state where a subsequent exists will
claim the chroot doesn't exist, but both create and destroy fail:

$ sudo click chroot -aamd64 -fubuntu-sdk-15.10 create
FileExistsError: [Errno 17] File exists: '/var/lib/schroot/chroots/click-ubuntu-sdk-15.04-amd64'

$ sudo click chroot -aamd64 -fubuntu-sdk-15.04 destroy
umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-amd64-137f095e-b0eb-4b4b-b4b0-a45d6de4ed53/home/cris: target is busy
        (In some cases useful info about processes that
         use the device is found by lsof(8) or fuser(1).)
umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-amd64-137f095e-b0eb-4b4b-b4b0-a45d6de4ed53/home: target is busy
        (In some cases useful info about processes that
         use the device is found by lsof(8) or fuser(1).)
umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-amd64-137f095e-b0eb-4b4b-b4b0-a45d6de4ed53: target is busy
        (In some cases useful info about processes that
         use the device is found by lsof(8) or fuser(1).)
Traceback (most recent call last):
  File "/usr/bin/click", line 110, in <module>
    sys.exit(main())
  File "/usr/bin/click", line 106, in main
    return mod.run(args)
  File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 266, in run
    return args.func(parser, args)
  File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 91, in destroy
    return chroot.destroy()
  File "/usr/lib/python3/dist-packages/click/chroot.py", line 694, in destroy
    shutil.rmtree(chroot_dir)
  File "/usr/lib/python3.5/shutil.py", line 474, in rmtree
    _rmtree_safe_fd(fd, path, onerror)
  File "/usr/lib/python3.5/shutil.py", line 416, in _rmtree_safe_fd
    onerror(os.rmdir, fullname, sys.exc_info())
  File "/usr/lib/python3.5/shutil.py", line 414, in _rmtree_safe_fd
    os.rmdir(name, dir_fd=topfd)
OSError: [Errno 16] Device or resource busy: 'home'

It's not the same as bug 1427264 and the work-around doesn't affect it.

** Affects: click (Ubuntu)
     Importance: Critical
         Status: New

** Description changed:

  On a fresh Xenial install, with encrypted home (ecryptfs) creation of
  click chroots always fails:
  
  $ sudo click chroot -aamd64 -fubuntu-sdk-15.10 create
  [...]
  E: 10mount: umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892/home/cris: target is busy
  E: 10mount:         (In some cases useful info about processes that
  E: 10mount:          use the device is found by lsof(8) or fuser(1).)
  E: click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892: Chroot setup failed: stage=setup-stop
  Command returned 1: schroot -u root -c source:click-ubuntu-sdk-15.10-amd64 -- /finish.sh
  umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892/home/cris: target is busy
-         (In some cases useful info about processes that
-          use the device is found by lsof(8) or fuser(1).)
+         (In some cases useful info about processes that
+          use the device is found by lsof(8) or fuser(1).)
  umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892/home: target is busy
-         (In some cases useful info about processes that
-          use the device is found by lsof(8) or fuser(1).)
+         (In some cases useful info about processes that
+          use the device is found by lsof(8) or fuser(1).)
  umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892: target is busy
-         (In some cases useful info about processes that
-          use the device is found by lsof(8) or fuser(1).)
+         (In some cases useful info about processes that
+          use the device is found by lsof(8) or fuser(1).)
  Traceback (most recent call last):
-   File "/usr/bin/click", line 110, in <module>
-     sys.exit(main())
-   File "/usr/bin/click", line 106, in main
-     return mod.run(args)
-   File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 266, in run
-     return args.func(parser, args)
-   File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 68, in create
-     return chroot.create(args.keep_broken_chroot)
-   File "/usr/lib/python3/dist-packages/click/chroot.py", line 596, in create
-     self.destroy()
-   File "/usr/lib/python3/dist-packages/click/chroot.py", line 694, in destroy
-     shutil.rmtree(chroot_dir)
-   File "/usr/lib/python3.5/shutil.py", line 474, in rmtree
-     _rmtree_safe_fd(fd, path, onerror)
-   File "/usr/lib/python3.5/shutil.py", line 416, in _rmtree_safe_fd
-     onerror(os.rmdir, fullname, sys.exc_info())
-   File "/usr/lib/python3.5/shutil.py", line 414, in _rmtree_safe_fd
-     os.rmdir(name, dir_fd=topfd)
+   File "/usr/bin/click", line 110, in <module>
+     sys.exit(main())
+   File "/usr/bin/click", line 106, in main
+     return mod.run(args)
+   File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 266, in run
+     return args.func(parser, args)
+   File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 68, in create
+     return chroot.create(args.keep_broken_chroot)
+   File "/usr/lib/python3/dist-packages/click/chroot.py", line 596, in create
+     self.destroy()
+   File "/usr/lib/python3/dist-packages/click/chroot.py", line 694, in destroy
+     shutil.rmtree(chroot_dir)
+   File "/usr/lib/python3.5/shutil.py", line 474, in rmtree
+     _rmtree_safe_fd(fd, path, onerror)
+   File "/usr/lib/python3.5/shutil.py", line 416, in _rmtree_safe_fd
+     onerror(os.rmdir, fullname, sys.exc_info())
+   File "/usr/lib/python3.5/shutil.py", line 414, in _rmtree_safe_fd
+     os.rmdir(name, dir_fd=topfd)
  OSError: [Errno 16] Device or resource busy: 'home'
  
  This leaves me in an inconsistent state where a subsequent exists will
  claim the chroot doesn't exist, but both create and destroy fail:
  
  $ sudo click chroot -aamd64 -fubuntu-sdk-15.10 create
  FileExistsError: [Errno 17] File exists: '/var/lib/schroot/chroots/click-ubuntu-sdk-15.04-amd64'
  
  $ sudo click chroot -aamd64 -fubuntu-sdk-15.04 destroy
  umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-amd64-137f095e-b0eb-4b4b-b4b0-a45d6de4ed53/home/cris: target is busy
-         (In some cases useful info about processes that
-          use the device is found by lsof(8) or fuser(1).)
+         (In some cases useful info about processes that
+          use the device is found by lsof(8) or fuser(1).)
  umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-amd64-137f095e-b0eb-4b4b-b4b0-a45d6de4ed53/home: target is busy
-         (In some cases useful info about processes that
-          use the device is found by lsof(8) or fuser(1).)
+         (In some cases useful info about processes that
+          use the device is found by lsof(8) or fuser(1).)
  umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-amd64-137f095e-b0eb-4b4b-b4b0-a45d6de4ed53: target is busy
-         (In some cases useful info about processes that
-          use the device is found by lsof(8) or fuser(1).)
+         (In some cases useful info about processes that
+          use the device is found by lsof(8) or fuser(1).)
  Traceback (most recent call last):
-   File "/usr/bin/click", line 110, in <module>
-     sys.exit(main())
-   File "/usr/bin/click", line 106, in main
-     return mod.run(args)
-   File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 266, in run
-     return args.func(parser, args)
-   File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 91, in destroy
-     return chroot.destroy()
-   File "/usr/lib/python3/dist-packages/click/chroot.py", line 694, in destroy
-     shutil.rmtree(chroot_dir)
-   File "/usr/lib/python3.5/shutil.py", line 474, in rmtree
-     _rmtree_safe_fd(fd, path, onerror)
-   File "/usr/lib/python3.5/shutil.py", line 416, in _rmtree_safe_fd
-     onerror(os.rmdir, fullname, sys.exc_info())
-   File "/usr/lib/python3.5/shutil.py", line 414, in _rmtree_safe_fd
-     os.rmdir(name, dir_fd=topfd)
+   File "/usr/bin/click", line 110, in <module>
+     sys.exit(main())
+   File "/usr/bin/click", line 106, in main
+     return mod.run(args)
+   File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 266, in run
+     return args.func(parser, args)
+   File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 91, in destroy
+     return chroot.destroy()
+   File "/usr/lib/python3/dist-packages/click/chroot.py", line 694, in destroy
+     shutil.rmtree(chroot_dir)
+   File "/usr/lib/python3.5/shutil.py", line 474, in rmtree
+     _rmtree_safe_fd(fd, path, onerror)
+   File "/usr/lib/python3.5/shutil.py", line 416, in _rmtree_safe_fd
+     onerror(os.rmdir, fullname, sys.exc_info())
+   File "/usr/lib/python3.5/shutil.py", line 414, in _rmtree_safe_fd
+     os.rmdir(name, dir_fd=topfd)
  OSError: [Errno 16] Device or resource busy: 'home'
+ 
+ It's not the same as bug 1427264 and the work-around doesn't affect it.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to click in Ubuntu.
https://bugs.launchpad.net/bugs/1531934

Title:
  OSError: [Errno 16] Device or resource busy: 'home'

Status in click package in Ubuntu:
  New

Bug description:
  On a fresh Xenial install, with encrypted home (ecryptfs) creation of
  click chroots always fails:

  $ sudo click chroot -aamd64 -fubuntu-sdk-15.10 create
  [...]
  E: 10mount: umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892/home/cris: target is busy
  E: 10mount:         (In some cases useful info about processes that
  E: 10mount:          use the device is found by lsof(8) or fuser(1).)
  E: click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892: Chroot setup failed: stage=setup-stop
  Command returned 1: schroot -u root -c source:click-ubuntu-sdk-15.10-amd64 -- /finish.sh
  umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892/home/cris: target is busy
          (In some cases useful info about processes that
           use the device is found by lsof(8) or fuser(1).)
  umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892/home: target is busy
          (In some cases useful info about processes that
           use the device is found by lsof(8) or fuser(1).)
  umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.10-amd64-296e9eec-3d02-48a1-98e9-939c77d11892: target is busy
          (In some cases useful info about processes that
           use the device is found by lsof(8) or fuser(1).)
  Traceback (most recent call last):
    File "/usr/bin/click", line 110, in <module>
      sys.exit(main())
    File "/usr/bin/click", line 106, in main
      return mod.run(args)
    File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 266, in run
      return args.func(parser, args)
    File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 68, in create
      return chroot.create(args.keep_broken_chroot)
    File "/usr/lib/python3/dist-packages/click/chroot.py", line 596, in create
      self.destroy()
    File "/usr/lib/python3/dist-packages/click/chroot.py", line 694, in destroy
      shutil.rmtree(chroot_dir)
    File "/usr/lib/python3.5/shutil.py", line 474, in rmtree
      _rmtree_safe_fd(fd, path, onerror)
    File "/usr/lib/python3.5/shutil.py", line 416, in _rmtree_safe_fd
      onerror(os.rmdir, fullname, sys.exc_info())
    File "/usr/lib/python3.5/shutil.py", line 414, in _rmtree_safe_fd
      os.rmdir(name, dir_fd=topfd)
  OSError: [Errno 16] Device or resource busy: 'home'

  This leaves me in an inconsistent state where a subsequent exists will
  claim the chroot doesn't exist, but both create and destroy fail:

  $ sudo click chroot -aamd64 -fubuntu-sdk-15.10 create
  FileExistsError: [Errno 17] File exists: '/var/lib/schroot/chroots/click-ubuntu-sdk-15.04-amd64'

  $ sudo click chroot -aamd64 -fubuntu-sdk-15.04 destroy
  umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-amd64-137f095e-b0eb-4b4b-b4b0-a45d6de4ed53/home/cris: target is busy
          (In some cases useful info about processes that
           use the device is found by lsof(8) or fuser(1).)
  umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-amd64-137f095e-b0eb-4b4b-b4b0-a45d6de4ed53/home: target is busy
          (In some cases useful info about processes that
           use the device is found by lsof(8) or fuser(1).)
  umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-amd64-137f095e-b0eb-4b4b-b4b0-a45d6de4ed53: target is busy
          (In some cases useful info about processes that
           use the device is found by lsof(8) or fuser(1).)
  Traceback (most recent call last):
    File "/usr/bin/click", line 110, in <module>
      sys.exit(main())
    File "/usr/bin/click", line 106, in main
      return mod.run(args)
    File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 266, in run
      return args.func(parser, args)
    File "/usr/lib/python3/dist-packages/click/commands/chroot.py", line 91, in destroy
      return chroot.destroy()
    File "/usr/lib/python3/dist-packages/click/chroot.py", line 694, in destroy
      shutil.rmtree(chroot_dir)
    File "/usr/lib/python3.5/shutil.py", line 474, in rmtree
      _rmtree_safe_fd(fd, path, onerror)
    File "/usr/lib/python3.5/shutil.py", line 416, in _rmtree_safe_fd
      onerror(os.rmdir, fullname, sys.exc_info())
    File "/usr/lib/python3.5/shutil.py", line 414, in _rmtree_safe_fd
      os.rmdir(name, dir_fd=topfd)
  OSError: [Errno 16] Device or resource busy: 'home'

  It's not the same as bug 1427264 and the work-around doesn't affect
  it.

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