On Fri, April 26, 2013 at 07:29 (+0200), Eric Sandeen wrote:
> Tests after 276 were failing because the background fsstress
> hadn't quit prior to exit, devices couldn't be unmounted, etc.
I don't see how that would happen. Any further insight?
> Just use the same trick as generic/068 does, and use
> a tmpfile to control whether the background loop keeps
> running.
I like that trick :-)
Thanks,
-Jan
> Also, no need to umount scratch at cleanup time, the scripts
> do that for us.
>
> Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
> ---
>
> (nobody else ran into this? really?)
>
> diff --git a/tests/btrfs/276 b/tests/btrfs/276
> index 0a5ce36..9d68b54 100755
> --- a/tests/btrfs/276
> +++ b/tests/btrfs/276
> @@ -36,14 +36,8 @@ noise_pid=0
>
> _cleanup()
> {
> - if [ $noise_pid -ne 0 ]; then
> - echo "background noise kill $noise_pid" >>$seqres.full
> - kill $noise_pid
> - noise_pid=0
> - wait
> - fi
> - echo "*** unmount"
> - umount $SCRATCH_MNT 2>/dev/null
> + rm $tmp.running
> + wait
> rm -f $tmp.*
> }
> trap "_cleanup; exit \$status" 0 1 2 3 15
> @@ -210,7 +204,7 @@ workout()
>
> if [ $do_bg_noise -ne 0 ]; then
> # make background noise while backrefs are being walked
> - while /bin/true; do
> + while [ -f "$tmp.running" ]; do
> echo background fsstress >>$seqres.full
> run_check $FSSTRESS_PROG -d $SCRATCH_MNT/bgnoise -n 999
> echo background rm >>$seqres.full
> @@ -263,6 +257,8 @@ nfiles=4
> numprocs=1
> do_bg_noise=1
>
> +touch $tmp.running
> +
> workout $filesize $nfiles $numprocs $snap_name $do_bg_noise
>
> echo "*** done"
> diff --git a/tests/btrfs/276.out b/tests/btrfs/276.out
> index 2032dea..5113164 100644
> --- a/tests/btrfs/276.out
> +++ b/tests/btrfs/276.out
> @@ -1,4 +1,3 @@
> QA output created by 276
> *** test backref walking
> *** done
> -*** unmount
>
> --
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