Good morning! msnfs41client on Windows 10/32bit crashes if I have a NFS referral from a Linux 6.1 or 6.6 kernel. Windows 10/64bit msnfs41client does not crash. But if I change to a Linux 5.10.0-22 (Debian 11) NFS server the problem goes away, so this might be a NFS server bug. nfsd_debug.exe output: 0fac: DEBUG: wintirpc_socket: C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\libtirpc\src\wintirpc.c/246: sock fd=4 wintirpc_setnfsclientsockopts(sock=4): SO_RCVBUF=65536 wintirpc_setnfsclientsockopts(sock=4): SO_SNDBUF=65536 wintirpc_setnfsclientsockopts(sock=4): set SO_RCVBUF to 8388608 wintirpc_setnfsclientsockopts(sock=4): set SO_SNDBUF to 8388608 0fac: started the callback thread 1828 1828: cb: Callback thread running #### FATAL: exception in thr=0fac'C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\libtirpc\src\clnt_vc.c'/764 #### * Versions: - NFS server: Debian Linux trixie, stock 6.1 trixie kernel, tested with 6.6LTS kernel - NFS client: msnfs41client 20240923_11h26m_gitf3955ec release Win10/32bit Cygwin 3.3/32bit Ced -- Cedric Blancher <cedric.blancher@xxxxxxxxx> [https://plus.google.com/u/0/+CedricBlancher/] Institute Pasteur