Fixes a race in the UCX backend between synchronous rkey unpack and endpoint teardown. - #1987

Fixes a race in the UCX backend between synchronous rkey unpack and endpoint teardown.#1987

iyastreb merged 9 commits into

ai-dynamo:mainai-dynamo/nixl:mainfrom

chaunceyjiang:fix/ucx-rkey-unpack-close-racechaunceyjiang/nixl:fix/ucx-rkey-unpack-close-raceCopy head branch name to clipboard