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Wong wrote: > > Lukas Herbolt posted some fixes for a few of the fstests to inject > > concurrency=0 into mkfs. IIRC there weren't any changes for 078, but > > you might ask him if he has more bugs to address. > > Shin'ichiro, can you check if inserting concurrency=0 fixes xfs/078 > and xfs/216 for you? (and IIRC xfs/217 which lingers in some reports). I tried mkfs.xfs options "-d concurrency=0 -l concurrency=0 -r concurrency=0", specifying all three options together, but it did not avoid the failures at xfs/078 and xfs/216 in my test environments (I checked my recent test run records, but did not find xfs/217 failure). Just FYI, here's my command line logs. nullb0 and nullb1 are 8GiB memory backed null_blk devices. I also tried each of "-d concurrency=0", "-l concurrency=0" and "-r concurrency=0" seperately, and observed the same failures. I used the kernel at xfs/for-next on Jun/12 and fstests tag v2026.05.17. The fstests alraday has the commit by Lukas ffc8bad17e5b ("xfs/21{6,7} Use default -l concurrency=0 on mkfs.xfs that supports it"). $ cat ./local.config export TEST_DIR=/var/kts/test export TEST_DEV="/dev/nullb0" export KEEP_DMESG=yes export FSTYP=xfs export MKFS_OPTIONS="-d concurrency=0 -l concurrency=0 -r concurrency=0" export SCRATCH_MNT=/var/kts/scratch export SCRATCH_DEV="/dev/nullb1" export FSX_AVOID=-a $ sudo mkfs.xfs -f -d concurrency=0 -l concurrency=0 -r concurrency=0 /dev/nullb0 meta-data=/dev/nullb0 isize=512 agcount=4, agsize=524288 blks = sectsz=512 attr=2, projid32bit=1 = crc=1 finobt=1, sparse=1, rmapbt=1 = reflink=1 bigtime=1 inobtcount=1 nrext64=1 = exchange=1 metadir=0 data = bsize=4096 blocks=2097152, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0, ftype=1, parent=1 log =internal log bsize=4096 blocks=16384, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 = rgcount=0 rgsize=0 extents = zoned=0 start=0 reserved=0 $ sudo ./check xfs/078 xfs/216 FSTYP -- xfs (non-debug) PLATFORM -- Linux/x86_64 redsun71q 7.1.0-rc4-kts-xfs-g804826eac53+ #1 SMP PREEMPT_DYNAMIC Mon Jun 15 09:31:13 JST 2026 MKFS_OPTIONS -- -f -d concurrency=0 -l concurrency=0 -r concurrency=0 /dev/nullb1 MOUNT_OPTIONS -- -o context=system_u:object_r:root_t:s0 /dev/nullb1 /var/kts/scratch xfs/078 - output mismatch (see /home/shin/kts/kernel-test-suite/src/xfstests/results//xfs/078.out.bad) --- tests/xfs/078.out 2026-06-15 09:49:28.616774560 +0900 +++ /home/shin/kts/kernel-test-suite/src/xfstests/results//xfs/078.out.bad 2026-06-17 10:19:09.364881845 +0900 @@ -68,8 +68,8 @@ wrote 4096/4096 bytes at offset 2684354560000 *** mount loop filesystem *** grow loop filesystem -xfs_growfs --BlockSize=4096 --Blocks=268435456 -data blocks changed from 268435456 to 655360001 +xfs_growfs --BlockSize=4096 --Blocks=268435440 +data blocks changed from 268435440 to 655360001 ... (Run 'diff -u /home/shin/kts/kernel-test-suite/src/xfstests/tests/xfs/078.out /home/shin/kts/kernel-test-suite/src/xfstests/results//xfs/078.out.bad' to see the entire diff) xfs/216 - output mismatch (see /home/shin/kts/kernel-test-suite/src/xfstests/results//xfs/216.out.bad) --- tests/xfs/216.out 2026-06-15 09:49:28.794774318 +0900 +++ /home/shin/kts/kernel-test-suite/src/xfstests/results//xfs/216.out.bad 2026-06-17 10:19:17.643595048 +0900 @@ -7,4 +7,4 @@ fssize=32g log =internal log bsize=4096 blocks=16384, version=2 fssize=64g log =internal log bsize=4096 blocks=16384, version=2 fssize=128g log =internal log bsize=4096 blocks=16384, version=2 -fssize=256g log =internal log bsize=4096 blocks=32768, version=2 +fssize=256g log =internal log bsize=4096 blocks=32767, version=2 ... (Run 'diff -u /home/shin/kts/kernel-test-suite/src/xfstests/tests/xfs/216.out /home/shin/kts/kernel-test-suite/src/xfstests/results//xfs/216.out.bad' to see the entire diff) Ran: xfs/078 xfs/216 Failures: xfs/078 xfs/216 Failed 2 of 2 tests