On 08/30/2017 12:52 PM, Jeff Cody wrote:
> Right now, all qemu-iotests output data into the same scratch directory,
> and so each test needs to be responsible for cleaning up its own files.
> 
> Have each test use 'scratch/$seq' as its temp directory, so the check
> script can do simple cleanup of removing the whole temporary directory.
> 
> Reviewed-by: Eric Blake <ebl...@redhat.com>
> Signed-off-by: Jeff Cody <jc...@redhat.com>
> ---
>  tests/qemu-iotests/check | 21 +++++++++++++++++----
>  1 file changed, 17 insertions(+), 4 deletions(-)
> 
> diff --git a/tests/qemu-iotests/check b/tests/qemu-iotests/check
> index d504b6e..f6ca85d 100755
> --- a/tests/qemu-iotests/check
> +++ b/tests/qemu-iotests/check
> @@ -243,6 +243,7 @@ seq="check"
>  
>  for seq in $list
>  do
> +    TEST_DIR_SEQ=$TEST_DIR/$seq
>      err=false
>      printf %s "$seq"
>      if [ -n "$TESTS_REMAINING_LOG" ] ; then
> @@ -289,13 +290,23 @@ do
>          fi
>          export OUTPUT_DIR=$PWD
>          if $debug; then
> -            (cd "$source_iotests";
> +            (
> +            export TEST_DIR=$TEST_DIR_SEQ
> +            . "$source_iotests/common.config"
> +            . "$source_iotests/common.rc"

What purpose do these serve?

> +            cd "$source_iotests" &&
>              MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(($RANDOM % 255 + 1))} \
> -                    $run_command -d 2>&1 | tee $tmp.out)
> +                    $run_command -d 2>&1 | tee $tmp.out
> +            )
>          else
> -            (cd "$source_iotests";
> +            (
> +            export TEST_DIR=$TEST_DIR_SEQ
> +            . "$source_iotests/common.config"
> +            . "$source_iotests/common.rc"
> +             cd "$source_iotests" &&
>              MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(($RANDOM % 255 + 1))} \
> -                    $run_command >$tmp.out 2>&1)
> +                    $run_command >$tmp.out 2>&1
> +            )
>          fi
>          sts=$?
>          $timestamp && _timestamp
> @@ -359,6 +370,8 @@ do
>              fi
>          fi
>  
> +        rm -rf "$TEST_DIR_SEQ"
> +
>      fi
>  
>      # come here for each test, except when $showme is true
> 

Seems OK to me, though I am not able to answer all doubts about exactly
how this may effect the strange pipe/subshell arrangements that occur
deeper in the bowels of the included files for launching QEMU and so
on.. I suppose that might be related to the inclusion of those
common.XYZ files?

Tested-by: John Snow <js...@redhat.com>
Reviewed-by: John Snow <js...@redhat.com>

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