Re: [PATCH 2/8] generic/561: hide assertions when duperemove is killed

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On 7/6/21 5:21 PM, Darrick J. Wong wrote:
From: Darrick J. Wong <djwong@xxxxxxxxxx>

Use some bash redirection trickery to capture in $seqres.full all of
bash's warnings about duperemove being killed due to assertions
triggering.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
  tests/generic/561 |    9 +++++++--
  1 file changed, 7 insertions(+), 2 deletions(-)


diff --git a/tests/generic/561 b/tests/generic/561
index bfd4443d..85037e50 100755
--- a/tests/generic/561
+++ b/tests/generic/561
@@ -62,8 +62,13 @@ dupe_run=$TEST_DIR/${seq}-running
  touch $dupe_run
  for ((i = 0; i < $((2 * LOAD_FACTOR)); i++)); do
  	while [ -e $dupe_run ]; do
-		$DUPEREMOVE_PROG -dr --dedupe-options=same $testdir \
-			>>$seqres.full 2>&1
+		# Employ shell trickery here so that the golden output does not
nit:
I think I'd be more more specific with the commentary:

                # We run cmd in a bash shell so that the golden output ...
+		# capture assertions that trigger when killall shoots down
+		# dupremove processes in an arbitrary order, which leaves the
+		# memory in an inconsistent state long enough for the assert
+		# to trip.
+		cmd="$DUPEREMOVE_PROG -dr --dedupe-options=same $testdir"
+		bash -c "$cmd" >> $seqres.full 2>&1
  	done 2>&1 | sed -e '/Terminated/d' &
  	dedup_pids="$! $dedup_pids"
  done

Otherwise looks fine to me
Reviewed-by: Allison Henderson <allison.henderson@xxxxxxxxxx>



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