btrfs locking at 74% on 6.1.6

Working on upgrading to a new version -- does look like mine is 9 months old or so.

I noticed the following in dmesg output:

INFO: task btrfs-transacti:2021 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
btrfs-transacti D 0000000100098c98 0 2021 2 0x00000000
ffff88001ba9dd20 0000000000000046 ffff880000000000 ffff88001ba9dfd8
ffff88001ba9dfd8 0000000000004000 ffff88003d46d910 ffff880039112990
0000000100000000 0000000000000001 00000000ffffffff ffff88003d402300
Call Trace:
[<ffffffff880a3e35>] ? __free_pages+0x25/0x30
[<ffffffff880d0052>] ? __free_slab+0xc2/0x190
[<ffffffff880ce984>] ? add_partial+0x24/0x80
[<ffffffff88879c6a>] schedule+0x3a/0x50
[<ffffffff8887a0b9>] schedule_timeout+0x1a9/0x210
[<ffffffff88063929>] ? prepare_to_wait+0x59/0x90
[<ffffffff882ddabb>] btrfs_commit_transaction+0x20b/0xa90
[<ffffffff88063b30>] ? abort_exclusive_wait+0xb0/0xb0
[<ffffffff882de9a5>] ? start_transaction+0x95/0x3f0
[<ffffffff882d5afd>] transaction_kthread+0x23d/0x260
[<ffffffff882d58c0>] ? btrfs_alloc_root+0x40/0x40
[<ffffffff88063339>] kthread+0x89/0x90
[<ffffffff8887cf34>] kernel_thread_helper+0x4/0x10
[<ffffffff880632b0>] ? kthread_worker_fn+0x140/0x140
[<ffffffff8887cf30>] ? gs_change+0xb/0xb

and I have a number of them:

root@Cabana:/var/log# dmesg |grep hung
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
root@Cabana:/var/log#