Public bug reported: While tracking down a lockup while running `lvremove` on a 2TB sized LV with 4.15.0-58.64, I noticed that upgrading to 4.15.0-62.69 makes the operation succeed, but still print: ``` /dev/mapper/test: BLKDISCARD ioctl at offset 1048576 size 6442450944000 failed: Operation not supported. ```
Looking into the commits before 4.15.0-58.64 it seems that the issue got introduced with 3c2f83d8bcbedeb89efcaf55ae64a99dce9d7e34 in ubuntu- bionic. AFAIS the commit did not make it into 4.14 or 4.19 stable, but got pulled from 4.18. see https://www.mail-archive.com/[email protected]/msg1897789.html for a short discussion why it did not got pulled into the LTS series upstream. While a55264933f12c2fdc28a66841c4724021e8c1caf fixes the infinite loop on `lvremove` it seems that a backport of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4800bf7bc8c725e955fcbc6191cc872f43f506d3 would correctly address the issue. Glad to provide further information and help testing! Thanks! ** Affects: linux (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/1843324 Title: Bionic (4.15.0-62.69): lvremove of 2TB LV reports: 'BLKDISCARD ioctl operation not supported' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1843324/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
