Starting with the amd64 snapshot of February 9th, there is a regression
in tmux which can lead to a bus error on startup or when sourcing a file
that sources another file.
The easiest way I found to reproduce the crash is as follows:
$ pwd
/home/user
$ ls
$ cat .tmux.conf
source-file .mytmuxconf
$ cat .mytmuxconf
set-option -g repeat-time 200
$ tmux
$ echo $?
1
$ ls
tmux.core
$
It seems that revision 1.21 of cmd-queue.c is responsible for this crash.
Reverting cmd-queue.c to revision 1.20 and adjusting the prototype of
cmdq_guard() in tmux.h accordingly seems to fix this problem.
Here's a backtrace of `tmux -vvv' (without debugging symbols, sorry):
GNU gdb 6.3
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
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This GDB was configured as "amd64-unknown-openbsd5.7"...(no debugging symbols
found)
Core was generated by `tmux'.
Program terminated with signal 10, Bus error.
(no debugging symbols found)
Loaded symbols for /usr/bin/tmux
Reading symbols from /usr/lib/libutil.so.12.1...done.
Loaded symbols for /usr/lib/libutil.so.12.1
Reading symbols from /usr/lib/libcurses.so.14.0...done.
Loaded symbols for /usr/lib/libcurses.so.14.0
Reading symbols from /usr/lib/libevent.so.4.1...done.
Loaded symbols for /usr/lib/libevent.so.4.1
Reading symbols from /usr/lib/libc.so.78.1...done.
Loaded symbols for /usr/lib/libc.so.78.1
Reading symbols from /usr/libexec/ld.so...done.
Loaded symbols for /usr/libexec/ld.so
#0 0x000016b84f7225f1 in cfg_default_done () from /usr/bin/tmux
(gdb) bt
#0 0x000016b84f7225f1 in cfg_default_done () from /usr/bin/tmux
#1 0x000016b84f722715 in cfg_default_done () from /usr/bin/tmux
#2 0x000016b84f73b046 in server_client_callback () from /usr/bin/tmux
#3 0x000016b84f7129b2 in cfg_default_done () from /usr/bin/tmux
#4 0x000016b84f712aa8 in cfg_default_done () from /usr/bin/tmux
#5 0x000016b84f7420c0 in server_client_callback () from /usr/bin/tmux
#6 0x000016b84f70fe91 in ?? () from /usr/bin/tmux
#7 0x0000000000000000 in ?? ()
(gdb) q
And the corresponding log files:
$ cat tmux-client-22833.log
socket is /tmp/tmux-1005/default
trying connect
connect failed: Connection refused
lock file is /tmp/tmux-1005/default.lock
flock succeeded
got lock
trying connect
connect failed: Connection refused
starting server
$ cat tmux-server-25507.log
server started, pid 25507
cmdq 0x16bac52dca80: bind-key C-b send-prefix (client -1)
cmdq 0x16bac52dca80: bind-key C-o rotate-window (client -1)
cmdq 0x16bac52dca80: bind-key C-z suspend-client (client -1)
cmdq 0x16bac52dca80: bind-key Space next-layout (client -1)
cmdq 0x16bac52dca80: bind-key ! break-pane (client -1)
cmdq 0x16bac52dca80: bind-key " split-window (client -1)
cmdq 0x16bac52dca80: bind-key # list-buffers (client -1)
cmdq 0x16bac52dca80: bind-key $ command-prompt -I#S "rename-session '%%'"
(client -1)
cmdq 0x16bac52dca80: bind-key % split-window -h (client -1)
cmdq 0x16bac52dca80: bind-key & confirm-before "-pkill-window #W? (y/n)"
kill-window (client -1)
cmdq 0x16bac52dca80: bind-key ' command-prompt -pindex "select-window -t ':%%'"
(client -1)
cmdq 0x16bac52dca80: bind-key ( switch-client -p (client -1)
cmdq 0x16bac52dca80: bind-key ) switch-client -n (client -1)
cmdq 0x16bac52dca80: bind-key , command-prompt -I#W "rename-window '%%'"
(client -1)
cmdq 0x16bac52dca80: bind-key - delete-buffer (client -1)
cmdq 0x16bac52dca80: bind-key . command-prompt "move-window -t '%%'" (client -1)
cmdq 0x16bac52dca80: bind-key 0 select-window -t:0 (client -1)
cmdq 0x16bac52dca80: bind-key 1 select-window -t:1 (client -1)
cmdq 0x16bac52dca80: bind-key 2 select-window -t:2 (client -1)
cmdq 0x16bac52dca80: bind-key 3 select-window -t:3 (client -1)
cmdq 0x16bac52dca80: bind-key 4 select-window -t:4 (client -1)
cmdq 0x16bac52dca80: bind-key 5 select-window -t:5 (client -1)
cmdq 0x16bac52dca80: bind-key 6 select-window -t:6 (client -1)
cmdq 0x16bac52dca80: bind-key 7 select-window -t:7 (client -1)
cmdq 0x16bac52dca80: bind-key 8 select-window -t:8 (client -1)
cmdq 0x16bac52dca80: bind-key 9 select-window -t:9 (client -1)
cmdq 0x16bac52dca80: bind-key : command-prompt (client -1)
cmdq 0x16bac52dca80: bind-key ; last-pane (client -1)
cmdq 0x16bac52dca80: bind-key = choose-buffer (client -1)
cmdq 0x16bac52dca80: bind-key ? list-keys (client -1)
cmdq 0x16bac52dca80: bind-key D choose-client (client -1)
cmdq 0x16bac52dca80: bind-key L switch-client -l (client -1)
cmdq 0x16bac52dca80: bind-key [ copy-mode (client -1)
cmdq 0x16bac52dca80: bind-key ] paste-buffer (client -1)
cmdq 0x16bac52dca80: bind-key c new-window (client -1)
cmdq 0x16bac52dca80: bind-key d detach-client (client -1)
cmdq 0x16bac52dca80: bind-key f command-prompt "find-window '%%'" (client -1)
cmdq 0x16bac52dca80: bind-key i display-message (client -1)
cmdq 0x16bac52dca80: bind-key l last-window (client -1)
cmdq 0x16bac52dca80: bind-key n next-window (client -1)
cmdq 0x16bac52dca80: bind-key o select-pane -t:.+ (client -1)
cmdq 0x16bac52dca80: bind-key p previous-window (client -1)
cmdq 0x16bac52dca80: bind-key q display-panes (client -1)
cmdq 0x16bac52dca80: bind-key r refresh-client (client -1)
cmdq 0x16bac52dca80: bind-key s choose-tree (client -1)
cmdq 0x16bac52dca80: bind-key t clock-mode (client -1)
cmdq 0x16bac52dca80: bind-key w choose-window (client -1)
cmdq 0x16bac52dca80: bind-key x confirm-before "-pkill-pane #P? (y/n)"
kill-pane (client -1)
cmdq 0x16bac52dca80: bind-key z resize-pane -Z (client -1)
cmdq 0x16bac52dca80: bind-key { swap-pane -U (client -1)
cmdq 0x16bac52dca80: bind-key } swap-pane -D (client -1)
cmdq 0x16bac52dca80: bind-key ~ show-messages (client -1)
cmdq 0x16bac52dca80: bind-key PPage copy-mode -u (client -1)
cmdq 0x16bac52dca80: bind-key -r Up select-pane -U (client -1)
cmdq 0x16bac52dca80: bind-key -r Down select-pane -D (client -1)
cmdq 0x16bac52dca80: bind-key -r Left select-pane -L (client -1)
cmdq 0x16bac52dca80: bind-key -r Right select-pane -R (client -1)
cmdq 0x16bac52dca80: bind-key M-1 select-layout even-horizontal (client -1)
cmdq 0x16bac52dca80: bind-key M-2 select-layout even-vertical (client -1)
cmdq 0x16bac52dca80: bind-key M-3 select-layout main-horizontal (client -1)
cmdq 0x16bac52dca80: bind-key M-4 select-layout main-vertical (client -1)
cmdq 0x16bac52dca80: bind-key M-5 select-layout tiled (client -1)
cmdq 0x16bac52dca80: bind-key M-n next-window -a (client -1)
cmdq 0x16bac52dca80: bind-key M-o rotate-window -D (client -1)
cmdq 0x16bac52dca80: bind-key M-p previous-window -a (client -1)
cmdq 0x16bac52dca80: bind-key -r M-Up resize-pane -U 5 (client -1)
cmdq 0x16bac52dca80: bind-key -r M-Down resize-pane -D 5 (client -1)
cmdq 0x16bac52dca80: bind-key -r M-Left resize-pane -L 5 (client -1)
cmdq 0x16bac52dca80: bind-key -r M-Right resize-pane -R 5 (client -1)
cmdq 0x16bac52dca80: bind-key -r C-Up resize-pane -U (client -1)
cmdq 0x16bac52dca80: bind-key -r C-Down resize-pane -D (client -1)
cmdq 0x16bac52dca80: bind-key -r C-Left resize-pane -L (client -1)
cmdq 0x16bac52dca80: bind-key -r C-Right resize-pane -R (client -1)
socket path /tmp/tmux-1005/default
new client 7
loading /home/user/.tmux.conf
/home/user/.tmux.conf: source-file .mytmuxconf
cmdq 0x16ba6c017e80: source-file .mytmuxconf (client -1)
loading .mytmuxconf
.mytmuxconf: set-option -g repeat-time 200
cmdq 0x16ba6c017580: set-option -g repeat-time 200 (client -1)
