System deadlocks while taking LVM snapshot

Issue

• System deadlocks while taking LVM snapshot

Apr 21 13:47:07 host kernel: INFO: task kworker/1:1:48 blocked for more than 120 seconds.
Apr 21 13:47:07 host kernel:      Tainted: P           OE    --------- -  - 4.18.0-147.5.1.el8_1.x86_64 #1
Apr 21 13:47:07 host kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 21 13:47:07 host kernel: kworker/1:1     D    0    48      2 0x80000000
Apr 21 13:47:07 host kernel: Workqueue: kcopyd do_work [dm_mod]
Apr 21 13:47:07 host kernel: Call Trace:
Apr 21 13:47:07 host kernel: ? __schedule+0x253/0x830
Apr 21 13:47:07 host kernel: ? dd_finish_request+0x40/0x40
Apr 21 13:47:07 host kernel: schedule+0x28/0x70
Apr 21 13:47:07 host kernel: rwsem_down_read_failed+0x10d/0x1b0
Apr 21 13:47:07 host kernel: do_origin.isra.28+0x19/0x90 [dm_snapshot]
Apr 21 13:47:07 host kernel: pending_complete+0x22b/0x390 [dm_snapshot]
Apr 21 13:47:07 host kernel: persistent_commit_exception+0xce/0x140 [dm_snapshot]
Apr 21 13:47:07 host kernel: copy_callback+0x9c/0x170 [dm_snapshot]
Apr 21 13:47:07 host kernel: ? start_copy+0xd0/0xd0 [dm_snapshot]
Apr 21 13:47:07 host kernel: run_complete_job+0x5f/0xa0 [dm_mod]
Apr 21 13:47:07 host kernel: process_jobs+0x89/0x210 [dm_mod]
Apr 21 13:47:07 host kernel: ? drop_pages+0x40/0x40 [dm_mod]
Apr 21 13:47:07 host kernel: do_work+0x93/0xf0 [dm_mod]
Apr 21 13:47:07 host kernel: process_one_work+0x1a7/0x3b0
Apr 21 13:47:07 host kernel: worker_thread+0x1fa/0x390
Apr 21 13:47:07 host kernel: ? create_worker+0x1a0/0x1a0
Apr 21 13:47:07 host kernel: kthread+0x112/0x130
Apr 21 13:47:07 host kernel: ? kthread_flush_work_fn+0x10/0x10
Apr 21 13:47:07 host kernel: ret_from_fork+0x35/0x40

Apr 21 13:47:07 host kernel: INFO: task kworker/u12:27:659 blocked for more than 120 seconds.
Apr 21 13:47:07 host kernel: Call Trace:
Apr 21 13:47:07 host kernel: ? __schedule+0x253/0x830
Apr 21 13:47:07 host kernel: schedule+0x28/0x70
Apr 21 13:47:07 host kernel: schedule_timeout+0x26d/0x390
Apr 21 13:47:07 host kernel: ? mempool_alloc+0x67/0x190
Apr 21 13:47:07 host kernel: ? kmem_cache_alloc+0x158/0x1c0
Apr 21 13:47:07 host kernel: ? finish_wait+0x80/0x80
Apr 21 13:47:07 host kernel: ? mempool_alloc+0x67/0x190
Apr 21 13:47:07 host kernel: __down+0x9b/0xf0
Apr 21 13:47:07 host kernel: down+0x3b/0x50
Apr 21 13:47:07 host kernel: start_copy+0x8a/0xd0 [dm_snapshot]
Apr 21 13:47:07 host kernel: __origin_write+0x1b8/0x350 [dm_snapshot]
Apr 21 13:47:07 host kernel: do_origin.isra.28+0x7e/0x90 [dm_snapshot]
Apr 21 13:47:07 host kernel: __map_bio+0x42/0x190 [dm_mod]
Apr 21 13:47:07 host kernel: __split_and_process_non_flush+0x14b/0x1b0 [dm_mod]
Apr 21 13:47:07 host kernel: __split_and_process_bio+0x86/0x230 [dm_mod]
Apr 21 13:47:07 host kernel: ? blk_queue_split+0x3bf/0x640
Apr 21 13:47:07 host kernel: ? blk_queue_split+0xdd/0x640
Apr 21 13:47:07 host kernel: dm_process_bio+0x15a/0x220 [dm_mod]
Apr 21 13:47:07 host kernel: ? generic_make_request_checks+0x1fd/0x660
Apr 21 13:47:07 host kernel: dm_make_request+0x3b/0x90 [dm_mod]
Apr 21 13:47:07 host kernel: generic_make_request+0xcf/0x310
Apr 21 13:47:07 host kernel: submit_bio+0x45/0x140
Apr 21 13:47:07 host kernel: ? xfs_setfilesize_trans_alloc.isra.15+0x3d/0x90 [xfs]
Apr 21 13:47:07 host kernel: xfs_submit_ioend+0x97/0x1d0 [xfs]
Apr 21 13:47:07 host kernel: xfs_vm_writepages+0x78/0xa0 [xfs]
Apr 21 13:47:07 host kernel: do_writepages+0x41/0xd0
Apr 21 13:47:07 host kernel: ? __switch_to_asm+0x41/0x70
Apr 21 13:47:07 host kernel: ? __switch_to_asm+0x35/0x70
Apr 21 13:47:07 host kernel: ? __switch_to_asm+0x41/0x70
Apr 21 13:47:07 host kernel: ? __switch_to_asm+0x35/0x70
Apr 21 13:47:07 host kernel: ? __switch_to_asm+0x41/0x70
Apr 21 13:47:07 host kernel: ? __switch_to_asm+0x35/0x70
Apr 21 13:47:07 host kernel: ? __switch_to_asm+0x41/0x70
Apr 21 13:47:07 host kernel: ? __switch_to_asm+0x41/0x70
Apr 21 13:47:07 host kernel: __writeback_single_inode+0x3d/0x360
Apr 21 13:47:07 host kernel: writeback_sb_inodes+0x1e3/0x45