sysrq: SysRq : Show Blocked State
   task                        PC stack   pid father
 kworker/0:0     D    0     3      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/0:0H    D    0     4      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u8:0    D    0     5      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 mm_percpu_wq    D    0     6      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/1:0     D    0    15      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/1:0H    D    0    16      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/2:0     D    0    20      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/2:0H    D    0    21      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/3:0     D    0    25      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/3:0H    D    0    26      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 netns           D    0    28      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/0:1     D    0    29      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/1:1     D    0    30      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/2:1     D    0    31      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? pm_runtime_work+0x79/0x80
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 writeback       D    0    33      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kblockd         D    0    35      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 edac-poller     D    0    36      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/3:1     D    0    37      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 ttm_swap        D    0    39      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 scsi_tmf_0      D    0    41      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 scsi_tmf_1      D    0    43      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 scsi_tmf_2      D    0    45      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 scsi_tmf_3      D    0    47      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 scsi_tmf_4      D    0    49      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 scsi_tmf_5      D    0    51      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u8:1    D    0    52      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u8:2    D    0    53      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? edac_pci_workq_function+0x54/0x70
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u8:3    D    0    54      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u8:4    D    0    55      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u8:5    D    0    56      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u8:6    D    0    57      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/2:2     D    0    58      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/2:3     D    0    59      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u8:7    D    0    60      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/0:1H    D    0    61      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/3:1H    D    0    62      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/2:1H    D    0    63      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/0:2     D    0    64      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-worker    D    0    65      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u9:0    D    0    66      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-worker-hi D    0    67      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-delalloc  D    0    68      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-flush_del D    0    69      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-cache     D    0    70      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-submit    D    0    71      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-fixup     D    0    72      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-endio     D    0    73      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-endio-met D    0    74      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-endio-met D    0    75      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-endio-rai D    0    76      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-endio-rep D    0    77      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-rmw       D    0    78      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-endio-wri D    0    79      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-freespace D    0    80      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-delayed-m D    0    81      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-readahead D    0    82      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-qgroup-re D    0    83      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-extent-re D    0    84      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/1:1H    D    0    85      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 ext4-rsv-conver D    0    95      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-worker    D    0    96      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-worker-hi D    0    97      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-delalloc  D    0    98      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-flush_del D    0    99      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? do_group_exit+0x35/0xa0
  ? ret_from_fork+0x22/0x30
 btrfs-cache     D    0   100      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-submit    D    0   101      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-fixup     D    0   102      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-endio     D    0   103      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-endio-met D    0   104      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-endio-met D    0   105      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-endio-rai D    0   106      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-endio-rep D    0   107      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? do_group_exit+0x35/0xa0
  ? ret_from_fork+0x22/0x30
 btrfs-rmw       D    0   108      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-endio-wri D    0   109      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? do_group_exit+0x35/0xa0
  ? ret_from_fork+0x22/0x30
 btrfs-freespace D    0   110      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-delayed-m D    0   111      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-readahead D    0   112      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-qgroup-re D    0   113      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-extent-re D    0   114      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? rescuer_thread+0x2f1/0x340
  ? __cancel_work+0x70/0x70
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/3:2     D    0   115      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/1:2     D    0   117      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 btrfs-transacti D    0   119      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? schedule_timeout+0x1a9/0x240
  ? __schedule+0x177/0x5b0
  ? io_schedule_timeout+0x1e/0x40
  ? wait_for_completion_io+0x92/0xf0
  ? do_task_dead+0x40/0x40
  ? write_all_supers+0x9d5/0xac0
  ? btrfs_commit_transaction+0x685/0x860
  ? start_transaction+0x94/0x3a0
  ? transaction_kthread+0x185/0x1a0
  ? btrfs_cleanup_transaction+0x460/0x460
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u8:8    D    0   148      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u8:9    D    0   163      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u8:10   D    0   164      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? do_group_exit+0x35/0xa0
  ? ret_from_fork+0x22/0x30
 kworker/u8:11   D    0   166      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? do_group_exit+0x35/0xa0
  ? ret_from_fork+0x22/0x30
 kworker/u8:12   D    0   167      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u8:13   D    0   217      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? kmem_cache_free+0xdf/0x100
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/1:2H    D    0   225      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u9:1    D    0   256      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/3:2H    D    0   300      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? do_group_exit+0x35/0xa0
  ? ret_from_fork+0x22/0x30
 kworker/u9:2    D    0   355      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u9:3    D    0   419      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? ret_from_fork+0x22/0x30
 kworker/u9:4    D    0   420      2 0x00000000
 Call Trace:
  ? __schedule+0x16f/0x5b0
  ? schedule+0x2d/0x80
  ? worker_thread+0xaf/0x3f0
  ? process_one_work+0x340/0x340
  ? kthread+0x106/0x120
  ? __kthread_create_on_node+0x170/0x170
  ? do_group_exit+0x35/0xa0
  ? ret_from_fork+0x22/0x30