[Bug 1915431] [NEW] QEMU processes started by Acceptance Tests are left running

[Cleber Rosa]

Public bug reported:

Every now and then, QEMU processes started by the Acceptance Tests (thus
by Avocado) will be left running.

>From Avocado's perspective, when everything "goes well" and a test
reaches completion, there's no attempt to terminate any processes it
indirectly started.  Some frameworks and tests built on top of Avocado,
for instance Avocado-VT, will keep processes running between various
tests.

When a job (and consequently a test) is manually interrupted, then
Avocado tries to terminate the entire process tree.

It may be possible to improve the situation in which, at the very least, the 
user is:
 * notified of left over processes
 * have a configuration option that will attempt to kill all processes at the 
end of the test execution

** Affects: qemu
     Importance: Undecided
         Status: New


** Tags: acceptance avocado test

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https://bugs.launchpad.net/bugs/1915431

Title:
  QEMU processes started by Acceptance Tests are left running

Status in QEMU:
  New

Bug description:
  Every now and then, QEMU processes started by the Acceptance Tests
  (thus by Avocado) will be left running.

  From Avocado's perspective, when everything "goes well" and a test
  reaches completion, there's no attempt to terminate any processes it
  indirectly started.  Some frameworks and tests built on top of
  Avocado, for instance Avocado-VT, will keep processes running between
  various tests.

  When a job (and consequently a test) is manually interrupted, then
  Avocado tries to terminate the entire process tree.

  It may be possible to improve the situation in which, at the very least, the 
user is:
   * notified of left over processes
   * have a configuration option that will attempt to kill all processes at the 
end of the test execution

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