Public bug reported: Hello,
I noticed that kernel which was used in ubuntu 22.04 (hwe-5.13) does not contain fixes for IO statistics for md devices. IO statistics for md devices were added to kernel 5.10 (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=41d2d848e5c09209bdb57ff9c0ca34075e22783d) but then bug for double fault was reported and this patch was reverted by Guoqing Jiang (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ad3fc798800fb7ca04c1dfc439dba946818048d8). Guoqing Jiang added series of patches which fixes problem and adds IO stats for md devices on top on the revert patch: - first commit from series: 10764815ff4728d2c57da677cd5d3dd6f446cf5f (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=10764815ff4728d2c57da677cd5d3dd6f446cf5f) - last one: de3ea66e9d23a34eef5e17f960d6473f78a1c54b (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=de3ea66e9d23a34eef5e17f960d6473f78a1c54b) I checked that kernel used in ubuntu 22.04 contains only patch with revert - iostat does not report for md devices (https://kernel.ubuntu.com/git/ubuntu/ubuntu-focal.git/log/?h=hwe-5.13&qt=author&q=Guoqing+Jiang) Please consider adding series of patches described above. Regards, Kinga Tanska ** Affects: linux-hwe-5.13 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1960324 Title: Kernel does not contain fixes for iostat for md devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.13/+bug/1960324/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
