When the applications call spdk_nvme_ctrlr_alloc_io_qpair,
there will be cmd to the admin qpairs in nvme_ctrlr_get_cc,
so there is contention. We should use the lock to protect
nvme_ctrl_get_cc. Otherwise, the multiple threads will have
contention on the admin qpair, thus there will be coredump issue.
We get the bug when testing NVMe-oF TCP transport, and this
patch can address this issue.
Change-Id: I7247f98cdf890c2eafaf8fb94580ecd714010bd5
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/435577
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Seth Howell <seth.howell5141@gmail.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
b4692083f1