Hello, I was trying to implement a per project shell history file. Some of these projects are on windows shared mounted via cifs. when I open those files as history with fc -p I get: /root/.zshrc:440: locking failed for /mnt/docs/projects/devbox/.history: operation not supported: reading anyway zsh: locking failed for /mnt/docs/projects/devbox/.history: operation not supported: reading anyway Is it possible to work around this? is it possibile in zsh to disable locking the history file during write operations? I am the only one writing to those files so I shouldn't risk a concurrent operation. I tried using setopt HIST_FCNTL_LOCK but ended up with an emptied history file. Pier Paolo Grassi