Here is the dmesg output at the time of the error message:
[ 8.515396] BTRFS: device fsid e91f611f-524a-43f5-bde5-8ebb9672f146 devid 2 transid 100593 /dev/dm-0
[ 8.525319] BTRFS info (device dm-0): enabling auto defrag
[ 8.525322] BTRFS info (device dm-0): disk space caching is enabled
[ 8.526281] BTRFS: failed to read the system array on dm-0
[ 8.547852] BTRFS: open_ctree failed
[ 10.106655] BTRFS: device fsid e91f611f-524a-43f5-bde5-8ebb9672f146 devid 3 transid 100593 /dev/dm-1
[ 10.943981] init: mountall main process (334) terminated with status 2
[ 10.972131] init: plymouth-upstart-bridge main process ended, respawning
[ 10.976545] init: plymouth-upstart-bridge main process (1253) terminated with status 1
[ 10.976550] init: plymouth-upstart-bridge main process ended, respawning
[ 19.846926] BTRFS info (device dm-1): enabling auto defrag
[ 19.846929] BTRFS info (device dm-1): disk space caching is enabled
[ 19.901994] BTRFS: bdev /dev/dm-0 errs: wr 0, rd 79, flush 0, corrupt 0, gen 0
[ 23.125160] init: failsafe main process (1465) killed by TERM signal
Here is the dmesg output at the time of the error message:
[ 8.515396] BTRFS: device fsid e91f611f- 524a-43f5- bde5-8ebb9672f1 46 devid 2 transid 100593 /dev/dm-0 524a-43f5- bde5-8ebb9672f1 46 devid 3 transid 100593 /dev/dm-1 upstart- bridge main process ended, respawning upstart- bridge main process (1253) terminated with status 1 upstart- bridge main process ended, respawning
[ 8.525319] BTRFS info (device dm-0): enabling auto defrag
[ 8.525322] BTRFS info (device dm-0): disk space caching is enabled
[ 8.526281] BTRFS: failed to read the system array on dm-0
[ 8.547852] BTRFS: open_ctree failed
[ 10.106655] BTRFS: device fsid e91f611f-
[ 10.943981] init: mountall main process (334) terminated with status 2
[ 10.972131] init: plymouth-
[ 10.976545] init: plymouth-
[ 10.976550] init: plymouth-
[ 19.846926] BTRFS info (device dm-1): enabling auto defrag
[ 19.846929] BTRFS info (device dm-1): disk space caching is enabled
[ 19.901994] BTRFS: bdev /dev/dm-0 errs: wr 0, rd 79, flush 0, corrupt 0, gen 0
[ 23.125160] init: failsafe main process (1465) killed by TERM signal