Hello, On Wed 20-09-23 11:40:24, Mathieu Othacehe wrote: > I also encountered that specific issue while migrating from 4.14 to 5.15 > with data=journal. The proposed patch fixes the issue for me. The 6.1 > branch seems to be affected as well. Would it be an option to have that > patch applied to stable branches? Well, Greg is rather reluctant to merge into stable tree patches that were not included upstream. But with a good reason he could do that. I guess the easiest is to try - take the backported fix and officially submit it to stable@xxxxxxxxxxxxxxx with the explanation why you are submitting non-upstream patch - in particular that upstream solution is some 14 patch series. Alternative solution is to backport and test the upstream solution: bd159398a2d2 ("jdb2: Don't refuse invalidation of already invalidated buffers") d84c9ebdac1e ("ext4: Mark pages with journalled data dirty") 265e72efa99f ("ext4: Keep pages with journalled data dirty") 5e1bdea6391d ("ext4: Clear dirty bit from pages without data to write") 1f1a55f0bf06 ("ext4: Commit transaction before writing back pages in data=journal mode") e360c6ed7274 ("ext4: Drop special handling of journalled data from ext4_sync_file()") c000dfec7e88 ("ext4: Drop special handling of journalled data from extent shifting operations") 783ae448b7a2 ("ext4: Fix special handling of journalled data from extent zeroing") 56c2a0e3d90d ("ext4: Drop special handling of journalled data from ext4_evict_inode()") 7c375870fdc5 ("ext4: Drop special handling of journalled data from ext4_quota_on()") 951cafa6b80e ("ext4: Simplify handling of journalled data in ext4_bmap()") ab382539adcb ("ext4: Update comment in mpage_prepare_extent_to_map()") d0ab8368c175 ("Revert "ext4: Fix warnings when freezing filesystem with journaled data"") 1077b2d53ef5 ("ext4: fix fsync for non-directories") Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR