Control: tags -1 - moreinfo I've observed this problem again today
Looking more closely, I noticed that it started to fsck the mount just before it tried to mount it. It didn't appear to wait for fsck to finish: Dec 03 10:51:37 systemd[1]: Started File System Check on /dev/mapper/vg00-foo_host1_bak. Dec 03 10:51:37 systemd[1]: systemd-fsck@dev-mapper-vg00\x2dfoo_host1_bak.service: cgroup is empty Dec 03 10:51:37 systemd[1]: Mounting /backup/host1/foo... Dec 03 10:51:38 systemd[1]: About to execute: /bin/mount -n /dev/mapper/vg00-foo_host1_bak /backup/host1/foo -t ext4 Dec 03 10:51:38 systemd[1]: backup-host1-foo.mount changed dead -> mounting Dec 03 10:51:38 systemd[1068]: Executing: /bin/mount -n /dev/mapper/vg00-foo_host1_bak /backup/host1/foo -t ext4 Dec 03 10:51:38 mount[1068]: mount: /dev/mapper/vg00-foo_host1_bak is already mounted or /backup/host1/foo busy More complete log attached
Dec 03 10:51:32 systemd[1]: Installed new job backup-host1-foo.mount/start as 58 Dec 03 10:51:32 systemd[1]: Installed new job dev-mapper-vg00\x2dfoo_host1_bak.device/start as 59 Dec 03 10:51:32 systemd[1]: Installed new job systemd-fsck@dev-mapper-vg00\x2dfoo_host1_bak.service/start as 60 Dec 03 10:51:32 systemd[1]: Expecting device dev-mapper-vg00\x2dfoo_host1_bak.device... Dec 03 10:51:36 systemd[1]: dev-vg00-foo_host1_bak.device changed dead -> plugged Dec 03 10:51:36 systemd[1]: dev-mapper-vg00\x2dfoo_host1_bak.device changed dead -> plugged Dec 03 10:51:36 systemd[1]: Job dev-mapper-vg00\x2dfoo_host1_bak.device/start finished, result=done Dec 03 10:51:36 systemd[1]: Found device /dev/mapper/vg00-foo_host1_bak. Dec 03 10:51:36 systemd[1]: dev-disk-by\x2did-dm\x2dname\x2dvg00\x2dfoo_host1_bak.device changed dead -> plugged Dec 03 10:51:36 systemd[1]: Starting File System Check on /dev/mapper/vg00-foo_host1_bak... Dec 03 10:51:36 systemd[1]: About to execute: /lib/systemd/systemd-fsck /dev/mapper/vg00-foo_host1_bak Dec 03 10:51:36 systemd[1]: systemd-fsck@dev-mapper-vg00\x2dfoo_host1_bak.service changed dead -> start Dec 03 10:51:36 systemd[935]: Executing: /lib/systemd/systemd-fsck /dev/mapper/vg00-foo_host1_bak Dec 03 10:51:37 systemd-fsck[935]: /dev/mapper/vg00-foo_host1_bak: clean, 269/2293760 files, 8636385/9175040 blocks Dec 03 10:51:37 systemd[1]: Child 935 belongs to systemd-fsck@dev-mapper-vg00\x2dfoo_host1_bak.service Dec 03 10:51:37 systemd[1]: systemd-fsck@dev-mapper-vg00\x2dfoo_host1_bak.service: main process exited, code=exited, status=0/SUCCESS Dec 03 10:51:37 systemd[1]: systemd-fsck@dev-mapper-vg00\x2dfoo_host1_bak.service changed start -> exited Dec 03 10:51:37 systemd[1]: Job systemd-fsck@dev-mapper-vg00\x2dfoo_host1_bak.service/start finished, result=done Dec 03 10:51:37 systemd[1]: Started File System Check on /dev/mapper/vg00-foo_host1_bak. Dec 03 10:51:37 systemd[1]: systemd-fsck@dev-mapper-vg00\x2dfoo_host1_bak.service: cgroup is empty Dec 03 10:51:37 systemd[1]: Mounting /backup/host1/foo... Dec 03 10:51:38 systemd[1]: About to execute: /bin/mount -n /dev/mapper/vg00-foo_host1_bak /backup/host1/foo -t ext4 Dec 03 10:51:38 systemd[1]: backup-host1-foo.mount changed dead -> mounting Dec 03 10:51:38 systemd[1068]: Executing: /bin/mount -n /dev/mapper/vg00-foo_host1_bak /backup/host1/foo -t ext4 Dec 03 10:51:38 mount[1068]: mount: /dev/mapper/vg00-foo_host1_bak is already mounted or /backup/host1/foo busy Dec 03 10:51:38 systemd[1]: Child 1068 belongs to backup-host1-foo.mount Dec 03 10:51:38 systemd[1]: backup-host1-foo.mount mount process exited, code=exited status=32 Dec 03 10:51:38 systemd[1]: backup-host1-foo.mount changed mounting -> failed Dec 03 10:51:38 systemd[1]: Job backup-host1-foo.mount/start finished, result=failed Dec 03 10:51:38 systemd[1]: Failed to mount /backup/host1/foo. Dec 03 10:51:38 systemd[1]: Unit backup-host1-foo.mount entered failed state. Dec 03 10:57:12 systemd[1]: Failed to send unit remove signal for backup-host1-foo.mount: Transport endpoint is not connected Dec 03 10:57:12 systemd[1]: Failed to send unit remove signal for systemd-fsck@dev-mapper-vg00\x2dfoo_host1_bak.service: Transport endpoint is not connected Dec 03 10:57:12 systemd[1]: Failed to send unit remove signal for dev-mapper-vg00\x2dfoo_host1_bak.device: Transport endpoint is not connected Dec 03 10:57:12 systemd[1]: Failed to send unit remove signal for dev-disk-by\x2did-dm\x2dname\x2dvg00\x2dfoo_host1_bak.device: Transport endpoint is not connected Dec 03 10:57:12 systemd[1]: Failed to send unit remove signal for dev-vg00-foo_host1_bak.device: Transport endpoint is not connected
