[NFS-Ganesha-Devel] Ganesha crashe in dec_nlm_state_ref.

Hello All, Ganesha: V2.5.0.4 Windows client: Windows 10 Pro Testing NFSv3 access from windows client. Sometimes Ganesha crashes in dec_nlm_state_ref. My understanding of the issue is - state is maintained in multiple lists but a single ref is taken for all entries. state mutex is not held while adding/removing it from different lists. this can cause incorrect ref on the state object. Attached patch appears to fix this. However I still need to test more. Any comments on the issue and patch will be highly appreciated. Thanks & Regards, Suhrud