generic/774: turn off lfsr
This test fails mostly-predictably across my testing fleet with:
--- /run/fstests/bin/tests/generic/774.out 2025-10-20 10:03:43.432910446 -0700
+++ /var/tmp/fstests/generic/774.out.bad 2025-11-10 01:14:58.941775866 -0800
@@ -1,2 +1,11 @@
QA output created by 774
+fio: failed initializing LFSR
+verify: bad magic header 0, wanted acca at file /opt/test-file offset 0, length 33554432 (requested block: offset=0, length=33554432)
+verify: bad magic header 0, wanted acca at file /opt/test-file offset 33554432, length 33554432 (requested block: offset=33554432, length=33554432)
+verify: bad magic header 0, wanted acca at file /opt/test-file offset 67108864, length 33554432 (requested block: offset=67108864, length=33554432)
+verify: bad magic header 0, wanted acca at file /opt/test-file offset 100663296, length 33554432 (requested block: offset=100663296, length=33554432)
+verify: bad magic header 0, wanted acca at file /opt/test-file offset 134217728, length 33554432 (requested block: offset=134217728, length=33554432)
+verify: bad magic header 0, wanted acca at file /opt/test-file offset 167772160, length 33554432 (requested block: offset=167772160, length=33554432)
+verify: bad magic header 0, wanted acca at file /opt/test-file offset 201326592, length 33554432 (requested block: offset=201326592, length=33554432)
+verify: bad magic header 0, wanted acca at file /opt/test-file offset 234881024, length 33554432 (requested block: offset=234881024, length=33554432)
Silence is golden
I'm not sure why the linear feedback shift register algorithm is
specifically needed for this test.
Cc: fstests@vger.kernel.org # v2025.10.20
Fixes: 9117fb93b41c38 ("generic: Add atomic write test using fio verify on file mixed mappings")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>
1 file changed
