INFO: task T1004_ArcSender:13658 blocked for more than 120 seconds.
...
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
T1004_ArcSender D    0 13658      1 0x00000080
Call Trace:
 schedule+0x28/0x80 
 rwsem_down_write_failed+0x174/0x3b0
 call_rwsem_down_write_failed+0x13/0x20
 down_write+0x20/0x30
 path_openat+0x3d7/0x15c0
 do_filp_open+0x9b/0x110 
 do_sys_open+0x1bd/0x250
 do_syscall_64+0x5b/0x1d0 
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
...
Call Trace:
 schedule+0x28/0x80
 rwsem_down_write_failed+0x174/0x3b0
 call_rwsem_down_write_failed+0x13/0x20
 down_write+0x20/0x30
 path_openat+0x3d7/0x15c0
 do_filp_open+0x9b/0x110
 do_sys_open+0x1bd/0x250
 do_syscall_64+0x5b/0x1d0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
...
Call Trace:
 schedule+0x28/0x80
 io_schedule+0x12/0x40
 __filemap_fdatawait_range+0x1ac/0x220
 filemap_write_and_wait_range+0x45/0x80
 nfs_file_fsync+0x44/0x1f0 [nfs]
 nfs_file_write+0x1c3/0x230 [nfs]
 new_sync_write+0xfd/0x160
 vfs_write+0xad/0x1a0
 ksys_write+0x5a/0xd0
 do_syscall_64+0x5b/0x1d0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
...
Call Trace:
 schedule+0x28/0x80
 rwsem_down_write_failed+0x174/0x3b0
 call_rwsem_down_write_failed+0x13/0x20
 down_write+0x20/0x30
 path_openat+0x3d7/0x15c0
 do_filp_open+0x9b/0x110
 do_sys_open+0x1bd/0x250
 do_syscall_64+0x5b/0x1d0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
...
Call Trace:
 schedule+0x28/0x80
 rwsem_down_write_failed+0x174/0x3b0
 call_rwsem_down_write_failed+0x13/0x20
 down_write+0x20/0x30
 path_openat+0x3d7/0x15c0
 do_filp_open+0x9b/0x110
 do_sys_open+0x1bd/0x250
 do_syscall_64+0x5b/0x1d0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
...
Call Trace:
 schedule+0x28/0x80
 io_schedule+0x12/0x40
 __filemap_fdatawait_range+0x1ac/0x220
 filemap_write_and_wait_range+0x45/0x80
 nfs_file_fsync+0x44/0x1f0 [nfs]
 nfs_file_write+0x1c3/0x230 [nfs]
 new_sync_write+0xfd/0x160
 vfs_write+0xad/0x1a0
 ksys_write+0x5a/0xd0
 do_syscall_64+0x5b/0x1d0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
...
Call Trace:
 schedule+0x28/0x80
 rwsem_down_write_failed+0x174/0x3b0
 call_rwsem_down_write_failed+0x13/0x20
 down_write+0x20/0x30
 path_openat+0x3d7/0x15c0
 do_filp_open+0x9b/0x110
 do_sys_open+0x1bd/0x250
 do_syscall_64+0x5b/0x1d0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
...
Call Trace:
 schedule+0x28/0x80
 rwsem_down_write_failed+0x174/0x3b0
 call_rwsem_down_write_failed+0x13/0x20
 down_write+0x20/0x30
 path_openat+0x3d7/0x15c0
 do_filp_open+0x9b/0x110
 do_sys_open+0x1bd/0x250
 do_syscall_64+0x5b/0x1d0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
...
Call Trace:
 schedule+0x28/0x80
 io_schedule+0x12/0x40
 __filemap_fdatawait_range+0x1ac/0x220
 filemap_write_and_wait_range+0x45/0x80
 nfs_file_fsync+0x44/0x1f0 [nfs]
 nfs_file_write+0x1c3/0x230 [nfs]
 new_sync_write+0xfd/0x160
 vfs_write+0xad/0x1a0
 ksys_write+0x5a/0xd0
 do_syscall_64+0x5b/0x1d0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
...
Call Trace:
 schedule+0x28/0x80
 rwsem_down_write_failed+0x174/0x3b0
 call_rwsem_down_write_failed+0x13/0x20
 down_write+0x20/0x30
 path_openat+0x3d7/0x15c0
 do_filp_open+0x9b/0x110
 do_sys_open+0x1bd/0x250
 do_syscall_64+0x5b/0x1d0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9