System crash with exception RIP: qedf_initiate_abts+29

Issue

• System crash with exception RIP: qedf_initiate_abts+29:

PANIC: "BUG: unable to handle kernel NULL pointer dereference at 0000000000000008"

[14355.539667] RIP: 0010:[<ffffffffc055d76d>]  [<ffffffffc055d76d>] qedf_initiate_abts+0x1d/0x340 [qedf]
[14355.553231] RSP: 0018:ffff929ffd62fd68  EFLAGS: 00010292
....
[14355.717308] Call Trace:
[14355.730868]  [<ffffffffc055dd34>] qedf_process_error_detect+0x104/0x130 [qedf]
[14355.744491]  [<ffffffffc055a969>] qedf_process_cqe+0x109/0x2e0 [qedf]
[14355.758185]  [<ffffffffc055ab66>] qedf_fp_io_handler+0x26/0x60 [qedf]
[14355.771600]  [<ffffffffafcbde3f>] process_one_work+0x17f/0x440
[14355.785045]  [<ffffffffafcbef56>] worker_thread+0x126/0x3c0
[14355.798398]  [<ffffffffafcbee30>] ? manage_workers.isra.26+0x2a0/0x2a0
[14355.811740]  [<ffffffffafcc5e11>] kthread+0xd1/0xe0
[14355.825141]  [<ffffffffafcc5d40>] ? insert_kthread_work+0x40/0x40
[14355.838568]  [<ffffffffb0394df7>] ret_from_fork_nospec_begin+0x21/0x21
[14355.851868]  [<ffffffffafcc5d40>] ? insert_kthread_work+0x40/0x40

• Failure logs prior:

[14198.604731] [0000:37:00.3]:[qedf_process_error_detect:1497]:2: err_warn_bitmap=00000000:00400000
[14198.604732] [0000:37:00.3]:[qedf_process_error_detect:1502]:2: tx_buff_off=00000000, rx_buff_off=00000000, rx_id=ffff
[14199.483137] device-mapper: multipath: Reinstating path 8:192.
[14199.729221] [0000:37:00.3]:[qedf_scsi_completion:1211]:2: Firmware detected underrun: xid=0x177 fcp_rsp.flags=0x00 fcp_resid=0 fw_residual=0x200 lba=00030004.
[14199.902056] [0000:37:00.3]:[qedf_process_error_detect:1493]:2: Error detection CQE, xid=0x17c
[14199.902059] [0000:37:00.3]:[qedf_process_error_detect:1497]:2: err_warn_bitmap=00000000:00004000
....
[14353.151718] [0000:37:00.3]:[qedf_process_error_detect:1493]:2: Error detection CQE, xid=0x47e
[14353.151719] [0000:37:00.3]:[qedf_process_error_detect:1497]:2: err_warn_bitmap=00000000:00004000
[14353.151721] [0000:37:00.3]:[qedf_process_error_detect:1502]:2: tx_buff_off=00000000, rx_buff_off=00000000, rx_id=05b2
[14354.200152] [0000:37:00.3]:[qedf_initiate_cleanup:2195]:2: Cleanup command timeout, xid=d5.
[14354.200153] [0000:37:00.3]:[qedf_initiate_cleanup:2198]:2: Issuing MCP drain request.
[14355.309841] [0000:37:00.3]:[qedf_process_error_detect:1497]:2: err_warn_bitmap=00000040:00000000
[14355.319632] [0000:37:00.3]:[qedf_process_error_detect:1502]:2: tx_buff_off=00000000, rx_buff_off=00000000, rx_id=0771