[Bug 1235189] [NEW] adt-run broken except when used with adt-virt-null

[Robie Basak]

Public bug reported:

2.3.6 does, in adt-run:run:

os.mkfifo(fifo_out) (and fifo_err)
fifo_out uses the testtmp path.

testtmp is created above that, in the guest.

But os.mkfifo runs in the host.

This causes the traceback:

adt-run: unexpected, exceptional, error:
Traceback (most recent call last):
  File "/usr/bin/adt-run", line 2205, in main
    process_actions()
  File "/usr/bin/adt-run", line 2177, in process_actions
    run_tests(stanzas, act.tests_tree)
  File "/usr/bin/adt-run", line 1315, in run_tests
    t.run(tree)
  File "/usr/bin/adt-run", line 1428, in run
    os.mkfifo(fifo_out)
OSError: [Errno 2] No such file or directory

This is with adt-virt-lxc (which has yet to land), but I believe it will
do it with anything but adt-virt-null.

Version 2.3.3 is not affected.

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

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https://bugs.launchpad.net/bugs/1235189

Title:
  adt-run broken except when used with adt-virt-null

Status in “autopkgtest” package in Ubuntu:
  New

Bug description:
  2.3.6 does, in adt-run:run:

  os.mkfifo(fifo_out) (and fifo_err)
  fifo_out uses the testtmp path.

  testtmp is created above that, in the guest.

  But os.mkfifo runs in the host.

  This causes the traceback:

  adt-run: unexpected, exceptional, error:
  Traceback (most recent call last):
    File "/usr/bin/adt-run", line 2205, in main
      process_actions()
    File "/usr/bin/adt-run", line 2177, in process_actions
      run_tests(stanzas, act.tests_tree)
    File "/usr/bin/adt-run", line 1315, in run_tests
      t.run(tree)
    File "/usr/bin/adt-run", line 1428, in run
      os.mkfifo(fifo_out)
  OSError: [Errno 2] No such file or directory

  This is with adt-virt-lxc (which has yet to land), but I believe it
  will do it with anything but adt-virt-null.

  Version 2.3.3 is not affected.

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