From: Filipe Manana <fdmanana@xxxxxxxx>
If there are no failures in the middle of test while the 3rd scratch
device is mounted (at $seq_mnt), the unmount call in the _cleanup
function will result in a test failure since the unmount already
happened, making the test fail:
$ ./check btrfs/254
FSTYP -- btrfs
PLATFORM -- Linux/x86_64 debian0 6.14.0-rc4-btrfs-next-188+ #1 SMP PREEMPT_DYNAMIC Wed Feb 26 17:38:41 WET 2025
MKFS_OPTIONS -- /dev/sdc
MOUNT_OPTIONS -- /dev/sdc /home/fdmanana/btrfs-tests/scratch_1
btrfs/254 2s ... - output mismatch (see /home/fdmanana/git/hub/xfstests/results//btrfs/254.out.bad)
--- tests/btrfs/254.out 2024-10-07 12:36:15.532225987 +0100
+++ /home/fdmanana/git/hub/xfstests/results//btrfs/254.out.bad 2025-02-27 12:53:30.848728429 +0000
@@ -3,3 +3,4 @@
Total devices <NUM> FS bytes used <SIZE>
devid <DEVID> size <SIZE> used <SIZE> path SCRATCH_DEV
*** Some devices missing
+umount: /home/fdmanana/btrfs-tests/dev/254.mnt: not mounted.
...
(Run 'diff -u /home/fdmanana/git/hub/xfstests/tests/btrfs/254.out /home/fdmanana/git/hub/xfstests/results//btrfs/254.out.bad' to see the entire diff)
HINT: You _MAY_ be missing kernel fix:
770c79fb6550 btrfs: harden identification of a stale device
Ran: btrfs/254
Failures: btrfs/254
Failed 1 of 1 tests
This is a recent regression because the _unmount function used to redirect
stdout and stderr to $seqres.full, but not anymore since the recent commit
identified in the Fixes tag below. So redirect stdout and stderr of the
call to _unmount in the _cleanup function to /dev/null.
Fixes: f43da58ef936 ("unmount: resume logging of stdout and stderr for filtering")
Signed-off-by: Filipe Manana <fdmanana@xxxxxxxx>
---
tests/btrfs/254 | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/btrfs/254 b/tests/btrfs/254
index 33fdf059..e1b4fb01 100755
--- a/tests/btrfs/254
+++ b/tests/btrfs/254
@@ -21,7 +21,7 @@ _cleanup()
{
cd /
rm -f $tmp.*
- _unmount $seq_mnt
+ _unmount $seq_mnt > /dev/null 2>&1
rm -rf $seq_mnt > /dev/null 2>&1
cleanup_dmdev
}
--
2.45.2
