Hm, it was helping in my case. So here from my re-run with utopic KVM host:
# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 16G 0 disk └─bcache0 251:0 0 8G 0 disk /mnt sdb 8:16 0 8G 0 disk └─bcache0 251:0 0 8G 0 disk /mnt # bcache-super-show /dev/sda sb.magic ok sb.first_sector 8 [match] sb.csum 29533C7B4D0F16EA [match] sb.version 3 [cache device] dev.label (empty) dev.uuid 91706fc8-39ae-4cbd-b0a0-8a202ee6a377 dev.sectors_per_block 1 dev.sectors_per_bucket 1024 dev.cache.first_sector 1024 dev.cache.cache_sectors 33553408 dev.cache.total_sectors 33554432 dev.cache.ordered yes dev.cache.discard yes dev.cache.pos 0 dev.cache.replacement 0 [lru] cset.uuid a8f70bd1-48df-462f-9a2c-ca4b8af9059c # bcache-super-show /dev/sdb sb.magic ok sb.first_sector 8 [match] sb.csum 81BB0342C7270559 [match] sb.version 1 [backing device] dev.label (empty) dev.uuid 4ae46f48-d11d-45ca-a1ec-905eaf8e1da8 dev.sectors_per_block 1 dev.sectors_per_bucket 1024 dev.data.first_sector 16 dev.data.cache_mode 1 [writeback] dev.data.cache_state 1 [clean] cset.uuid a8f70bd1-48df-462f-9a2c-ca4b8af9059c -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1377142 Title: Bcache doesn't allow full unregistering without rebooting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcache-tools/+bug/1377142/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
