System crash with "kernel BUG at block/blk-core.c:1561!" due to bnx2fc completion race

Issue

• System crash with kernel BUG at block/blk-core.c:1561! due to bnx2fc completion race:

[1402418.875038] sd 2:0:0:15: [sday] CDB: Test Unit Ready 00 00 00 00 00 00
[1402418.875057] sd 2:0:0:21: [sdbe] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=13s
[1402418.875061] sd 2:0:0:21: [sdbe] CDB: Test Unit Ready 00 00 00 00 00 00
[1402418.883277] bnx2fc: eh_abort: io_req is NULL
[1402418.898926] bnx2fc: eh_abort: io_req (xid = 0x740) flush in progress
[1402419.051033] ------------[ cut here ]------------
[1402419.051590] kernel BUG at block/blk-core.c:1561!
[1402419.052057] invalid opcode: 0000 [#1] SMP 
....
[1402419.057872] CPU: 0 PID: 2852 Comm: bnx2fc_thread/0 Kdump: loaded Tainted: P           OE  ------------   3.10.0-1160.62.1.el7.x86_64 #1
[1402419.059567] Hardware name: HPE Synergy 480 Gen10/Synergy 480 Gen10 Compute Module, BIOS I42 11/13/2019
[1402419.060351] task: ffff9d1c10a69080 ti: ffff9d1c09f98000 task.ti: ffff9d1c09f98000
[1402419.061126] RIP: 0010:[<ffffffffaf3537b0>]  [<ffffffffaf3537b0>] blk_requeue_request+0x90/0xa0
....
[1402419.072639] Call Trace:
[1402419.073584]  <IRQ> 
[1402419.073603]  [<ffffffffaf4ed6f6>] __scsi_queue_insert+0xb6/0x100
[1402419.075495]  [<ffffffffaf4ed83a>] scsi_softirq_done+0xda/0x160
[1402419.076463]  [<ffffffffaf35db16>] blk_done_softirq+0x96/0xc0
[1402419.077447]  [<ffffffffaf0a4d85>] __do_softirq+0xf5/0x280
[1402419.078428]  [<ffffffffaf79d4ec>] call_softirq+0x1c/0x30
[1402419.079413]  <EOI> 
[1402419.079428]  [<ffffffffaf02f715>] do_softirq+0x65/0xa0
[1402419.081414]  [<ffffffffaf0a41db>] __local_bh_enable_ip+0x9b/0xb0
[1402419.082442]  [<ffffffffaf78eb9e>] _raw_spin_unlock_bh+0x1e/0x20
[1402419.083563]  [<ffffffffc0516658>] bnx2fc_process_cq_compl+0xd8/0x260 [bnx2fc]
[1402419.084859]  [<ffffffffc0511e49>] bnx2fc_percpu_io_thread+0x129/0x1b0 [bnx2fc]
[1402419.086168]  [<ffffffffc0511d20>] ? bnx2fc_cleanup+0x100/0x100 [bnx2fc]
[1402419.087499]  [<ffffffffaf0c5fb1>] kthread+0xd1/0xe0
....
[1402419.095876] RIP  [<ffffffffaf3537b0>] blk_requeue_request+0x90/0xa0
[1402419.097319]  RSP <ffff9d260fe03eb8>