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[49.195.10.63]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c0c2b9d9d6bsm13394493a12.24.2025.12.15.14.57.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Dec 2025 14:57:17 -0800 (PST) Received: from dave by dread.disaster.area with local (Exim 4.98.2) (envelope-from ) id 1vVHVC-00000003KkS-2MjH; Tue, 16 Dec 2025 09:57:14 +1100 Date: Tue, 16 Dec 2025 09:57:14 +1100 From: Dave Chinner To: Luca Di Maio Cc: linux-xfs@vger.kernel.org, djwong@kernel.org Subject: Re: [PATCH v4] xfs: test reproducible builds Message-ID: References: <20251215193313.2098088-1-luca.dimaio1@gmail.com> Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251215193313.2098088-1-luca.dimaio1@gmail.com> On Mon, Dec 15, 2025 at 08:33:13PM +0100, Luca Di Maio wrote: > With the addition of the `-p` populate option, SOURCE_DATE_EPOCH and > DETERMINISTIC_SEED support, it is possible to create fully reproducible > pre-populated filesystems. We should test them here. > > v1 -> v2: > - Changed test group from parent to mkfs > - Fixed PROTO_DIR to point to a new dir > - Populate PROTO_DIR with relevant file types > - Move from md5sum to sha256sum > v2 -> v3 > - Properly check if mkfs.xfs supports SOURCE_DATE_EPOCH and > DETERMINISTIC_SEED > - use fsstress program to generate the PROTO_DIR content > - simplify test output > v3 -> v4 > - Add _cleanup function > > Signed-off-by: Luca Di Maio > --- > tests/xfs/841 | 171 ++++++++++++++++++++++++++++++++++++++++++++++ > tests/xfs/841.out | 3 + > 2 files changed, 174 insertions(+) > create mode 100755 tests/xfs/841 > create mode 100644 tests/xfs/841.out > > diff --git a/tests/xfs/841 b/tests/xfs/841 > new file mode 100755 > index 00000000..a75f5879 > --- /dev/null > +++ b/tests/xfs/841 > @@ -0,0 +1,171 @@ > +#! /bin/bash > +# SPDX-License-Identifier: GPL-2.0 > +# Copyright (c) 2025 Chainguard, Inc. All Rights Reserved. > +# > +# FS QA Test No. 841 > +# > +# Test that XFS filesystems created with reproducibility options produce > +# identical images across multiple runs. This verifies that the combination > +# of SOURCE_DATE_EPOCH, DETERMINISTIC_SEED, and -m uuid= options result in > +# bit-for-bit reproducible filesystem images. > + > +. ./common/preamble > +_begin_fstest auto quick mkfs > + > +# Image file settings > +IMG_SIZE="512M" > +IMG_FILE="$TEST_DIR/xfs_reproducible_test.img" > +PROTO_DIR="$TEST_DIR/proto" > + > +# Fixed values for reproducibility > +FIXED_UUID="12345678-1234-1234-1234-123456789abc" > +FIXED_EPOCH="1234567890" > + > +_cleanup() { > + rm -r -f "$PROTO_DIR" "$IMG_FILE" > +} After test specific cleanup, this needs to call _generic_cleanup() to handle all the internal test state cleanup requirements. -Dave. -- Dave Chinner david@fromorbit.com