Comment # 6 on bug 1090457 from ls gz

this lines from dmesg are the significant ones --especially the last one:

[  200.261800] sd 6:0:0:0: [sdb] Attached SCSI disk
[  635.648817] BTRFS info (device sda2): qgroup scan completed (inconsistency
flag cleared)
[  939.666189] rmi4_physical rmi4-00: Failed to read irqs, code=-6
lng@helix:~>