UCM/EVENT: If pthread_rwlock_rd/wrlock fails, spink on EAGAIN.
UCM/EVENT: If pthread_rwlock_rd/wrlock fails, spink on EAGAIN.

sergsagal1/ucx_rocm,shssf/ucx,sergsagal1/ucx_rocm,shssf/ucx,sergsagal1/ucx_rocm,shssf/ucx