RT kernel crashed during slab allocation with RIP kmem_cache_alloc+0x9a

Issue

• PANIC: double fault: 0000 [#18] PREEMPT SMP
• General fault protection during slab allocation RIP: kmem_cache_alloc+0x9a
• Stack overflow in kworker and slab corruption observed with patterns as below :

[2598208.292359] Thread overran stack, or stack corrupted
[2598208.292360] Oops: 0000 [#17] PREEMPT SMP 
kmem: kmalloc-1024: slab: ffffea007fc47800 invalid freepointer: ff881ff11e1c0000

• Backtrace of the panic task:

crash> bt 
PID: 31735  TASK: ffff881ff51c3360  CPU: 5   COMMAND: "kworker/u34:0"
 #0 [ffff881ff190f040] die at ffffffff8101ed9b
 #1 [ffff881ff190f070] do_general_protection at ffffffff81622e94
 #2 [ffff881ff190f0a0] general_protection at ffffffff81622552
    [exception RIP: kmem_cache_alloc+154]
    RIP: ffffffff811ace9a  RSP: ffff881ff190f158  RFLAGS: 00010286
    RAX: 0000000000000000  RBX: ffff88207fc5a5e0  RCX: 0000000d96db5605
    RDX: 0000000d96db5505  RSI: 0000000000011220  RDI: ff881ff11e1c0000
    RBP: ffff881ff190f1a8   R8: 000000000001a5e0   R9: ffffffff81155f45
    R10: 0000000000000000  R11: 0000000000000000  R12: ffff88103f803500
    R13: 0000000000011220  R14: ffff881ff190c000  R15: ffff881ff190c010
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #3 [ffff881ff190f1b0] mempool_alloc_slab at ffffffff81155f45
 #4 [ffff881ff190f1c0] mempool_alloc at ffffffff811560b9
 #5 [ffff881ff190f250] scsi_sg_alloc at ffffffff8140dad9
 #6 [ffff881ff190f260] __sg_alloc_table at ffffffff812e1bd2
 #7 [ffff881ff190f2d0] scsi_alloc_sgtable at ffffffff8140cc93
 #8 [ffff881ff190f300] scsi_init_sgtable at ffffffff8140cd0b
 #9 [ffff881ff190f320] scsi_init_io at ffffffff8140cdb3
#10 [ffff881ff190f380] sd_setup_read_write_cmnd at ffffffffa03119f8 [sd_mod]
#11 [ffff881ff190f3e0] sd_init_command at ffffffffa031457f [sd_mod]
#12 [ffff881ff190f3f0] scsi_setup_cmnd at ffffffff8140d02a
#13 [ffff881ff190f410] scsi_prep_fn at ffffffff8140d999
#14 [ffff881ff190f450] blk_peek_request at ffffffff812ac5b3
#15 [ffff881ff190f4b0] scsi_request_fn at ffffffff8140e9e8
#16 [ffff881ff190f550] __blk_run_queue at ffffffff812a9087
#17 [ffff881ff190f570] queue_unplugged at ffffffff812aba1e
#18 [ffff881ff190f5b0] blk_flush_plug_list at ffffffff812ac8e3
#19 [ffff881ff190f620] blk_queue_bio at ffffffff812adb12
#20 [ffff881ff190f670] generic_make_request at ffffffff812aa6ed
#21 [ffff881ff190f6b0] submit_bio at ffffffff812aa808
#22 [ffff881ff190f720] ext4_io_submit at ffffffffa0372649 [ext4]
#23 [ffff881ff190f740] ext4_bio_write_page at ffffffffa0372794 [ext4]
#24 [ffff881ff190f790] mpage_submit_page at ffffffffa0369608 [ext4]
#25 [ffff881ff190f7c0] mpage_map_and_submit_buffers at ffffffffa03699d4 [ext4]
#26 [ffff881ff190f8b0] mpage_map_and_submit_extent at ffffffffa036e81d [ext4]
#27 [ffff881ff190f910] ext4_writepages at ffffffffa0370ad2 [ext4]
#28 [ffff881ff190fab0] do_writepages at ffffffff8115f7b3
#29 [ffff881ff190fac0] __writeback_single_inode at ffffffff811eaf19
#30 [ffff881ff190fb10] writeback_sb_inodes at ffffffff811eb73b
#31 [ffff881ff190fbe0] __writeback_inodes_wb at ffffffff811eb8ae
#32 [ffff881ff190fc30] wb_writeback at ffffffff811ebbf3
#33 [ffff881ff190fcf0] wb_do_writeback at ffffffff811ebe44
#34 [ffff881ff190fd90] bdi_writeback_workfn at ffffffff811ebfd0
#35 [ffff881ff190fdf0] process_one_work at ffffffff8108c3f1
#36 [ffff881ff190fe40] worker_thread at ffffffff8108dc18
#37 [ffff881ff190fec0] kthread at ffffffff8109428e
#38 [ffff881ff190ff50] ret_from_fork at ffffffff81629ac8
crash>