System hang while discovering disk for Veritas DMP device

Issue

• System hang while discovering disk for Veritas DMP device:

PID: 19424  TASK: ffff882046c8a040  CPU: 18  COMMAND: "vxconfigd"
 #0 [ffff88203a21f718] schedule at ffffffff8155958a
 #1 [ffff88203a21f800] io_schedule at ffffffff81559e53
 #2 [ffff88203a21f820] sync_page at ffffffff811339e0
 #3 [ffff88203a21f830] __wait_on_bit_lock at ffffffff8155a71c
 #4 [ffff88203a21f880] __lock_page at ffffffff81133977
 #5 [ffff88203a21f8e0] do_read_cache_page at ffffffff81135989
 #6 [ffff88203a21f930] read_cache_page_async at ffffffff81135a79
 #7 [ffff88203a21f940] read_cache_page at ffffffff81135a8e
 #8 [ffff88203a21f950] read_dev_sector at ffffffff8121ba20
 #9 [ffff88203a21f970] read_lba at ffffffff8121e701
#10 [ffff88203a21f9d0] find_valid_gpt at ffffffff8121ec21
#11 [ffff88203a21fa80] efi_partition at ffffffff8121f22f
#12 [ffff88203a21fb40] rescan_partitions at ffffffff8121c2bb
#13 [ffff88203a21fbc0] __blkdev_get at ffffffff811e0346
#14 [ffff88203a21fc20] blkdev_get at ffffffff811e0590
#15 [ffff88203a21fc30] register_disk at ffffffff8121bbf5
#16 [ffff88203a21fc80] add_disk at ffffffff81291ca6
#17 [ffff88203a21fcb0] dmp_register_disk at ffffffffa04a801f [vxdmp]
#18 [ffff88203a21fce0] dmp_reconfigure_db at ffffffffa04d1494 [vxdmp]
#19 [ffff88203a21fd40] gendmpioctl at ffffffffa04b47e3 [vxdmp]
#20 [ffff88203a21fd70] dmpioctl at ffffffffa04b6485 [vxdmp]
#21 [ffff88203a21fd90] dmp_ioctl at ffffffffa04da5db [vxdmp]
#22 [ffff88203a21fdb0] dmp_compat_ioctl at ffffffffa04da656 [vxdmp]
#23 [ffff88203a21fde0] compat_blkdev_ioctl at ffffffff812a1300