On Mon, Jul 17, 2023 at 12:54:05PM +0000, Jacqueline Jolicoeur wrote:
> Hi,
> I thought I would mention I seem to be able to reproduce a tmux lock up
> where the tmux server component runs at 100% CPU. I am unable to attach
> to it at that point.
> The command I run in order to reproduce this is:
> Enter the tmux command prompt.
> C-b and :
> Run this command.
> movew -r
> It stays locked with the movew command still on screen. I end up having
> to kill the server process.

I have noticed tmux locking up with my original tmux.conf when closing
windows, likely because of renumber-windows on:

set-option -g default-terminal "tmux-256color"
set-option -g history-limit 3000
set-option -g renumber-windows on
set-option -ag window-status-current-style bold
set-option -ag window-status-current-style fg=black
set-option -ag window-status-current-style bg=blue
set-option -ag status-style bg=cyan
set-option -g escape-time 50

I have since switched to a more simplistic config that hasn't run into
the lock up, but I can still trigger it with movew -r as described

set-option -g escape-time 50
set-option -g base-index 1
set-option -g pane-base-index 1

> This started to occur in OpenBSD amd64 snapshots around July 13.
> I am running my OpenBSD amd64 with sysctl vm.malloc_conf=S
> ~/.tmux.conf
> set -g status-keys vi
> set -g status-right "%F %R"
> set -g status-style "bg=black,fg=white"
> setw -g mode-keys vi
> Thanks.

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