Undetached poller cause timeout when `spdk_thread_exit` has
been called and detaching it in same thread make poller to stuck
on `spdk_nvme_detach_async`.
`spdk_nvme_detach_async` call `nvme_pcie_ctrlr_delete_io_qpair`
which is synchronous making it to wait for response indefinitly.
Fixes#2798.
Signed-off-by: Sebastian Brzezinka <sebastian.brzezinka@intel.com>
Change-Id: Id500841f9c8fd9847e64805864cb136c74b003f1
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15650
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
8d85ce85b9