Truncating email content, starting bisect again as suggested.
Email was getting too long with repetition.
Crux of the issue repeated here so easy to understand topic
We got to dispatch passing rq_list and the list is corrupted/freed so
we panic. Clearly a race and is in v5.x+ kernels.
This new bisect will find it.
crash> bt
PID: 9191 TASK: ffff9dea0a8395c0 CPU: 1 COMMAND: "kworker/1:1H"
#0 [ffffa9fe0759fab0] machine_kexec at ffffffff938606cf
#1 [ffffa9fe0759fb08] __crash_kexec at ffffffff9393a48d
#2 [ffffa9fe0759fbd0] crash_kexec at ffffffff9393b659
#3 [ffffa9fe0759fbe8] oops_end at ffffffff93831c41
#4 [ffffa9fe0759fc08] no_context at ffffffff9386ecb9
#5 [ffffa9fe0759fcb0] do_page_fault at ffffffff93870012
#6 [ffffa9fe0759fce0] page_fault at ffffffff942010ee
[exception RIP: blk_mq_dispatch_rq_list+114]
RIP: ffffffff93b9f202 RSP: ffffa9fe0759fd90 RFLAGS: 00010246
RAX: ffff9de9c4d3bbc8 RBX: ffff9de9c4d3bbc8 RCX: 0000000000000004
RDX: 0000000000000000 RSI: ffffa9fe0759fe20 RDI: ffff9dea0dad87f0
RBP: 0000000000000000 R8: 0000000000000000 R9: 8080808080808080
R10: ffff9dea33827660 R11: ffffee9d9e097a00 R12: ffffa9fe0759fe20
R13: ffff9de9c4d3bb80 R14: 0000000000000000 R15: ffff9dea0dad87f0
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#7 [ffffa9fe0759fe18] blk_mq_sched_dispatch_requests at
ffffffff93ba455c
#8 [ffffa9fe0759fe60] __blk_mq_run_hw_queue at ffffffff93b9e3cf
#9 [ffffa9fe0759fe78] process_one_work at ffffffff938b0c21
#10 [ffffa9fe0759feb8] worker_thread at ffffffff938b18d9
#11 [ffffa9fe0759ff10] kthread at ffffffff938b6ee8
#12 [ffffa9fe0759ff50] ret_from_fork at ffffffff94200215
