mps0: out of chain frames
mps0: Error sending command, freezing SIM queue
mps0: Unfreezing SIM queue

[...]

1200+ more of the above message.

[...]

(pass9:mps0:0:40:0): SCSI command timeout on device handle 0x0015 SMID 807
mps0: (0:40:0) terminated ioc 804b scsi 0 state c xfer 0
mps0: (0:40:0) terminated ioc 804b scsi 0 state c xfer 0
mps0: (0:40:0) terminated ioc 804b scsi 0 state c xfer 0
mps0: mpssas_abort_complete: abort request on handle 0x15 SMID 807 complete
(da8:mps0:0:40:0): WRITE(10). CDB: 2a 0 78 0 a8 84 0 0 7 0 
(da8:mps0:0:40:0): CAM status: SCSI Status Error
(da8:mps0:0:40:0): SCSI status: Check Condition
(da8:mps0:0:40:0): SCSI sense: UNIT ATTENTION asc:29,0 (Power on, reset, or bus device reset occurred)
(da8:mps0:0:40:0): WRITE(10). CDB: 2a 0 a8 59 86 b6 0 0 1 0 
(da8:mps0:0:40:0): CAM status: SCSI Status Error
(da8:mps0:0:40:0): SCSI status: Check Condition
(da8:mps0:0:40:0): SCSI sense: UNIT ATTENTION asc:29,0 (Power on, reset, or bus device reset occurred)