On Thu, Jun 27, 2024 at 04:20:22PM -0400, Theodore Ts'o wrote: > This patch is causing ext4/020 (which tests the EXT4_IOC_MOVE_EXT > ioctl used by e4defrag). This can be easily reproduced via: > "kvm-xfstests -c ext4/4k ext4/020". From > /results/ext4/results-4k/ext4/020.out.bad: > > QA output created by 020 > wrote 1048576/1048576 bytes at offset 0 > XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) > wrote 1023/1023 bytes at offset 0 > XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) > md5sum: WARNING: 1 computed checksum did NOT match > SCRATCH_MNT/020.orig: FAILED > > I'm going to drop both this patch and the preceeding patch in this > series ("ext4: reduce stack usage in ext4_mpage_readpages()") pending > further investigation. Thanks. I couldn't get kvm-xfstests to work, but I was able to run ext4/020 using Kent's testsuite. I found two bugs and fixed them. I split this second patch into three patches for v2.