Public bug reported: dmsetup: there is no any warning about 4K logical block size (no warning by programm, no warning in man page).
How to reproduce: Followed page 7 of http://mbroz.fedorapeople.org/talks/DeviceMapperBasics/dm.pdf I tried following: dmsetup-test.sh: ----------------------------------------- #!/bin/sh sudo dmsetup create bad_disk << EOF 0 8 linear /dev/sda1 0 8 1 error 9 100 linear /dev/sda1 9 EOF sudo badblocks /dev/mapper/bad_disk ----------------------------------------- Actual result: Script output is: 4 5 6 7 In /var/log/kernel.log (tail -f, then press ENTER to make a gap and run script in another console). Following was added during this script worked: Jun 29 16:08:54 HP-635 kernel: [33498.146296] Buffer I/O error on device dm-1, logical block 8 Jun 29 16:08:54 HP-635 kernel: [33498.147299] Buffer I/O error on device dm-1, logical block 8 Jun 29 16:08:54 HP-635 kernel: [33498.147614] Buffer I/O error on device dm-1, logical block 8 Jun 29 16:08:54 HP-635 kernel: [33498.147981] Buffer I/O error on device dm-1, logical block 8 Jun 29 16:08:54 HP-635 kernel: [33498.148276] Buffer I/O error on device dm-1, logical block 8 Jun 29 16:08:54 HP-635 kernel: [33498.148639] Buffer I/O error on device dm-1, logical block 8 Expected result: 1. Warning from dmsetup: sectors in mapping table is not aligned by 8 2. Warning about aligment in 'man dmsetup' in section TABLE FORMAT. Additional info: $ sudo dmsetup table /dev/mapper/bad_disk 0 8 linear 8:1 0 8 1 error 9 100 linear 8:1 9 $ sudo blockdev --report /dev/mapper/bad_disk RO RA SSZ BSZ StartSec Size Device rw 256 512 512 0 55808 /dev/mapper/bad_disk $ sudo blockdev --report /dev/sda RO RA SSZ BSZ StartSec Size Device rw 256 512 4096 0 320072933376 /dev/sda ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: dmsetup 2:1.02.74-6ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-25.37-generic 3.8.13 Uname: Linux 3.8.0-25-generic i686 ApportVersion: 2.9.2-0ubuntu8.1 Architecture: i386 Date: Sat Jun 29 15:47:24 2013 InstallationDate: Installed on 2013-05-02 (58 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release i386 (20130424) MarkForUpload: True SourcePackage: lvm2 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: lvm2 (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 raring -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1195980 Title: dmsetup: there is no any warning about 4K logical block size To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1195980/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
