[linux-lvm] lvm snapshot cannot be removed with the error "Failed to refresh without snapshot"

Gang He ghe at suse.com
Wed Jun 19 09:26:33 UTC 2019


Hello List,

Our user is using lvm2-2.02.180, he attempted to remove a snapshot LV, but failed with the below error,
lvremove /dev/evg00/snap_var
  WARNING: Failed to connect to lvmetad. Falling back to device scanning.
Do you really want to remove active logical volume evg00/snap_var? [y/n]: y
  device-mapper: reload ioctl on  (254:36) failed: Invalid argument
  Failed to refresh var without snapshot.

But I can not reproduce in local, how do I find the root cause behind this problem?
I also can see one related error message in /var/log/messages
Jun 12 09:00:22 gtunxlnb04864 sudo:   buss18 : TTY=pts/0 ; PWD=/PZIR/users/buss18 ; USER=root ; COMMAND=/sbin/lvremove /dev/evg00/snap_opt
Jun 12 09:00:22 gtunxlnb04864 sudo[25821]: pam_unix(sudo:session): session opened for user root by buss18(uid=0)
Jun 12 09:00:22 gtunxlnb04864 kernel: [1492631.077551] device-mapper: ioctl: can't change device type after initial table load.  <<== here
Jun 12 09:00:22 gtunxlnb04864 sudo[25821]: pam_unix(sudo:session): session closed for user root
Jun 12 09:01:01 gtunxlnb04864 cron[25932]: pam_unix(crond:session): session opened for user ggmonux1 by (uid=0)

Thanks
Gang






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