Re: [Qemu-devel] [PATCH v2 for-2.10 1/1] qemu-iotests: _cleanup_qemu must be called on exit

[Eric Blake]

On 04/18/2017 02:31 PM, Jeff Cody wrote:
> On Tue, Apr 18, 2017 at 01:44:43PM -0500, Eric Blake wrote:
>> On 04/18/2017 12:45 PM, Jeff Cody wrote:
>>> For the tests that use the common.qemu functions for running a QEMU
>>> process, _cleanup_qemu must be called in the exit function.
>>>
>>> If it is not, if the qemu process aborts, then not all of the droppings
>>> are cleaned up (e.g. pidfile, fifos).
>>>

>>
>> Looks like you missed (at least?) 063
>>
> 
> I did miss 156.  But unless I am missing something, 063 does not use
> common.qemu...

Good point. 063 does litter, even on success, however:

$ rm -rf scratch/
$ ./check -raw 063
...
$ ls scratch/
t.raw.raw1

One idea presented in an earlier thread was that common.rc should create
a subdirectory per test (rather than all tests sharing scratch/), and
then common.rc itself install the cleanup hook that wipes out the entire
subdirectory (or maybe even add a command-line option to ./check to
suppress wiping when it is desirable to debug a test failure by seeing
the droppings left behind).

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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