ZPOOL r/w import panic, ZFS 2.1.4

[ 1915.336622] Kernel panic - not syncing: Pool 'expl-oss-4-4-ost1' has encountered an uncorrectable I/O failure and the failure mode property for this pool is set to panic.
[ 1915.336629] CPU: 5 PID: 5694 Comm: z_null_int Kdump: loaded Tainted: P           OE  ------------   3.10.0-1062.18.1.el7.x86_64 #1
[ 1915.336631] Hardware name: Aeon Computing MZ32-AR0-00/MZ32-AR0-00, BIOS R19 06/17/2020
[ 1915.336632] Call Trace:
[ 1915.336640]  [<ffffffffbc37b416>] dump_stack+0x19/0x1b
[ 1915.336643]  [<ffffffffbc374a0b>] panic+0xe8/0x21f
[ 1915.336647]  [<ffffffffbbce28c9>] ? pick_next_entity+0xa9/0x190
[ 1915.336696]  [<ffffffffc0ed68d6>] zio_suspend+0x116/0x120 [zfs]
[ 1915.336725]  [<ffffffffc0ed7eea>] zio_done+0xa5a/0xf60 [zfs]
[ 1915.336728]  [<ffffffffbc380d92>] ? __schedule+0x402/0x840
[ 1915.336754]  [<ffffffffc0ed077f>] zio_execute+0x9f/0x100 [zfs]
[ 1915.336760]  [<ffffffffc072c146>] taskq_thread+0x2c6/0x520 [spl]
[ 1915.336764]  [<ffffffffbbcdb600>] ? wake_up_state+0x20/0x20
[ 1915.336788]  [<ffffffffc0ed06e0>] ? zio_taskq_member.isra.9.constprop.12+0x70/0x70 [zfs]
[ 1915.336792]  [<ffffffffc072be80>] ? taskq_thread_spawn+0x60/0x60 [spl]
[ 1915.336795]  [<ffffffffbbcc6321>] kthread+0xd1/0xe0
[ 1915.336799]  [<ffffffffbbcc6250>] ? insert_kthread_work+0x40/0x40
[ 1915.336802]  [<ffffffffbc38dd1d>] ret_from_fork_nospec_begin+0x7/0x21
[ 1915.336805]  [<ffffffffbbcc6250>] ? insert_kthread_work+0x40/0x40