Re: [Qemu-devel] testsuite spurious failure due to leftover files

[Markus Armbruster]

Eric Blake <address@hidden> writes:

> iotests ./check -qcow2 failed for me today:
>
> 191      fail       [10:46:04] [10:46:13]   0s (last: 7s)    output
> mismatch (see 191.out.bad)
> --- /home/eblake/qemu/tests/qemu-iotests/191.out      2019-05-24
> 09:27:46.449348997 -0500
> +++ /home/eblake/qemu/tests/qemu-iotests/191.out.bad  2019-06-13
> 10:46:13.906004319 -0500
> @@ -8,6 +8,8 @@
>  Formatting 'TEST_DIR/t.IMGFMT.ovl2', fmt=IMGFMT size=67108864
> backing_file=TEST_DIR/t.IMGFMT.mid
>  wrote 65536/65536 bytes at offset 1048576
>  64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +mkfifo: cannot create fifo
> '/home/eblake/qemu/tests/qemu-iotests/scratch/qmp-out-17782_0': File exists
> +mkfifo: cannot create fifo
> '/home/eblake/qemu/tests/qemu-iotests/scratch/qmp-in-17782_0': File exists
>  {
>      "return": {
>      }
>
> If someone wants a good project to take on - it would be nice to revive
> Jeff Cody's initial work on refactoring the iotests to operate with one
> directory per test, allowing things to be run in parallel, and allowing
> cleanup to be much easier (nuke the temp directories, rather than trying
> to track down which test left a possibly-colliding file name behind)

The non-iotests could use the same treatment.

Too big for <https://wiki.qemu.org/BiteSizedTasks>, I'm afraid.