Hi folks! I learned about Nilfs2 many years ago and was impressed by its capabilities. The idea is brilliant! But due to glitches, I returned back to reiserfs3, which works like a charm, although it will be removed from the kernel in 2025. Now, after several years, I decided to return to Nilfs2, hoping that the bugs have been corrected. To my greatest regret, I received errors in all kernels and the system went into read-only state. Luckily I didn't lose any data. The texts of the errors will be below in the letter. In this regard, I have 2 questions: 1. What is the reason that after so many years, Nilfs2 still cannot work stably? 2. Are the errors I sent corrected? If fixed, then starting with what version of the kernel? Bugs: Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty page: offset=2579136512, ino=3 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=0, size=4096 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty page: offset=4329472, ino=6 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81375872, size=4096 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty page: offset=5189632, ino=1593910 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=0, size=4096 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty page: offset=45056, ino=33745 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81477095, size=4096 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty page: offset=0, ino=1594060 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=0, size=4096 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty page: offset=2580111360, ino=3 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=0, size=4096 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty page: offset=6815744, ino=6 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81370706, size=4096 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty page: offset=2580316160, ino=3 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=0, size=4096 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty page: offset=7106560, ino=6 Apr 14 15:10:10 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=5320006, size=4096 Apr 14 15:10:15 MainPC kernel: NILFS (dm-5): discard dirty page: offset=7139328, ino=6 Apr 14 15:10:15 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=5320014, size=4096 Apr 14 15:10:15 MainPC kernel: NILFS (dm-5): discard dirty page: offset=45056, ino=33745 Apr 14 15:10:15 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81477095, size=4096 Apr 14 15:10:15 MainPC kernel: NILFS (dm-5): discard dirty page: offset=7282688, ino=6 Apr 14 15:10:15 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=80559629, size=4096 Apr 14 15:10:20 MainPC kernel: NILFS (dm-5): discard dirty page: offset=2580275200, ino=3 Apr 14 15:10:20 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=0, size=4096 Apr 14 15:10:20 MainPC kernel: NILFS (dm-5): discard dirty page: offset=12890112, ino=6 Apr 14 15:10:20 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81369152, size=4096 Apr 14 15:10:20 MainPC kernel: NILFS (dm-5): discard dirty page: offset=0, ino=54311 Apr 14 15:10:20 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=0, size=4096 Apr 14 15:10:20 MainPC kernel: NILFS (dm-5): discard dirty page: offset=5189632, ino=1593910 Apr 14 15:10:20 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81477110, size=4096 Apr 14 15:10:20 MainPC kernel: NILFS (dm-5): discard dirty page: offset=45056, ino=33745 Apr 14 15:10:20 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81477095, size=4096 Apr 14 15:10:20 MainPC kernel: NILFS (dm-5): discard dirty page: offset=20029440, ino=6 Apr 14 15:10:20 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81370709, size=4096 -- Apr 14 15:10:24 MainPC kernel: NILFS (dm-5): nilfs_get_block (ino=55694): a race condition while inserting a data block at offset=0 Apr 14 15:10:24 MainPC kernel: NILFS (dm-5): nilfs_get_block (ino=55694): a race condition while inserting a data block at offset=0 Apr 14 15:10:24 MainPC kernel: NILFS (dm-5): nilfs_get_block (ino=55694): a race condition while inserting a data block at offset=0 Apr 14 15:10:25 MainPC kernel: NILFS (dm-5): discard dirty page: offset=20369408, ino=6 Apr 14 15:10:25 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81375846, size=4096 Apr 14 15:10:25 MainPC kernel: NILFS (dm-5): discard dirty page: offset=45056, ino=33745 Apr 14 15:10:25 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81477095, size=4096 Apr 14 15:10:25 MainPC kernel: NILFS (dm-5): discard dirty page: offset=0, ino=55694 Apr 14 15:10:25 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=0, size=4096 Apr 14 15:10:25 MainPC kernel: NILFS (dm-5): discard dirty page: offset=22556672, ino=6 Apr 14 15:10:25 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81370389, size=4096 -- Apr 14 15:10:30 MainPC kernel: NILFS (dm-5): discard dirty page: offset=84746240, ino=6 Apr 14 15:10:30 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=58879578, size=4096 Apr 14 15:10:30 MainPC kernel: NILFS (dm-5): discard dirty page: offset=45056, ino=33745 Apr 14 15:10:30 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81477095, size=4096 Apr 14 15:10:30 MainPC kernel: NILFS (dm-5): discard dirty page: offset=201527296, ino=6 Apr 14 15:10:30 MainPC kernel: NILFS (dm-5): discard dirty block: blocknr=81375118, size=4096 Sincerely yours, Veter Kamenev
