Rajesh Prasad has uploaded this change for review. ( https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/1238734?usp=email ) Change subject: Fix for NLM CLOSE_WAIT Socket Leak & negative AUTH refcount in NSM operations ...................................................................... Fix for NLM CLOSE_WAIT Socket Leak & negative AUTH refcount in NSM operations NLM CLOSE_WAIT Issue - Fix in nlm_owner.c file When using NFSv3 with NLM (Network Lock Manager), TCP callback connections from NFS Ganesha to clients get stuck in CLOSE_WAIT state and are never properly closed. This leads to socket exhaustion over time. netstat command shows multiple CLOSE_WAIT connections The remote peer (NLM client) sent FIN to close the connection. NFS Ganesha received the FIN and ACKed it but Ganesha never close socket FD. The socket remains in CLOSE_WAIT indefinitely until Ganesha restart. Negative AUTH refcount Issue - Fix in nsm.c file This change fixes a critical bug where AUTH_DESTROY() causes negative reference counts (ah_refcnt) when called on authnone auth structures. ROOT CAUSE: 1. authnone_ncreate() returns a shared singleton but does NOT initialize ah_refcnt (it remains 0 from static storage initialization) 2. AUTH_DESTROY() calls auth_put() which decrements: 0 - 1 = -1 3. Multiple AUTH_DESTROY() calls lead to: -1, -2, -3, ..., -120, .. The fix removes all AUTH_DESTROY() calls for nsm_auth since it's a shared singleton that should persist for the process lifetime. Change-Id: I45ec10b59e0728bdc387eff555121d208600c885 Signed-off-by: Rajesh Prasad <raprasad(a)redhat.com&gt; --- M src/Protocols/NLM/nsm.c M src/SAL/nlm_owner.c 2 files changed, 17 insertions(+), 3 deletions(-) git pull ssh://review.gerrithub.io:29418/ffilz/nfs-ganesha refs/changes/34/1238734/1 -- To view, visit https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/1238734?usp=email To unsubscribe, or for help writing mail filters, visit https://review.gerrithub.io/settings?usp=email Gerrit-MessageType: newchange Gerrit-Project: ffilz/nfs-ganesha Gerrit-Branch: next Gerrit-Change-Id: I45ec10b59e0728bdc387eff555121d208600c885 Gerrit-Change-Number: 1238734 Gerrit-PatchSet: 1 Gerrit-Owner: Rajesh Prasad <raprasad(a)redhat.com&gt;