[Kernel-packages] [Bug 2084979] [NEW] Device Mapper accepts writes even when the underlying devices are dead (offline or transport-offline)

Public bug reported: ** Steps to reproduce ** root@ubusrv:~# lsblk /dev/sda NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS sda 8:00 2G 0 disk └─sda1 8:10 2G 0 part root@ubusrv:~# root@ubusrv:~# pvcreate /dev/sda1 Physical volume "/dev/sda1" successfully

[Kernel-packages] [Bug 2084979] Re: Device Mapper accepts writes even when the underlying devices are dead (offline or transport-offline)

No ideas? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2084979 Title: Device Mapper accepts writes even when the underlying devices are dead (offline or transport-offline) Status in

[Kernel-packages] [Bug 2084979] Re: Device Mapper accepts writes even when the underlying devices are dead (offline or transport-offline)

## It gets even worse - DM accepts writes even if the underlying disk has been removed Here is an example root@ubusrv:~# l /dev/sda* brw-rw 1 root disk 8, 0 Oct 26 09:06 /dev/sda brw-rw 1 root disk 8, 1 Oct 26 09:06 /dev/sda1 root@ubusrv:~# pvs PV VG

[Kernel-packages] [Bug 2084979] Re: Device Mapper accepts writes even when the underlying devices are dead (offline or transport-offline)

Hi, I have already reported this on kernel.org: https://bugzilla.kernel.org/show_bug.cgi?id=219486 BTW, if I use the O_DIRECT flag, dd returns I/O error. For example: root@ubutest:~# pvs;lvs PV VGFmt Attr PSize PFree /dev/sda3 ubuntu-vg lvm2 a-- <17.32g 4.00m /dev/sdb1