Package: tmux Version: 2.9a-1 Severity: normal In 2.9a-1 and 2.8-3, the following procedure resulted in tmux sessions not surviving an X restart (which is my primary use case for tmux):
* Use a fresh user * Log in to an i3 window manager session (when prompted, press enter) * Win-d, enter xterm * run tmux * From a different console, restart lightdm * Log in again and open a terminal again * `tmux attach` finds "no sessions" At the same time, using gnome-terminal instead of xterm results is in survival of the tmux session, as it should always do. Variations I've tried: * XFCE as a window manager: same behavior (press Alt-F2 rather than Win-d) * TWM shells (whatever terminal emulator their desktop menu spawns) behave like gnome-terminal (session survives) * Logging out instead of restarting lightdm: tmux always survives (logout is Win-Shift-e on i3, or in the top-left menu in XFCE) * entering Alt-Print-K (SysRQ SAK) instead of restarting lightdm: same behavior For comparison, I've also tried whether a SAK on a terminal kills the tmux session: It does (when with tmux launched on console 2 and attached on console 3, a SAK on either console takes down the whole session); I think it should not (cf. kernel Documentation/SAK.txt), but I'm not sure how relevant this is to the above case of depending on the chosen terminal emulator to survive an X lockup. In case there is no obvious cause for this, is there any additional testing I can provide? -- System Information: Debian Release: 10.0 APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.0.0-trunk-amd64 (SMP w/8 CPU cores) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages tmux depends on: ii libc6 2.28-10 ii libevent-2.1-6 2.1.8-stable-4 ii libtinfo6 6.1+20181013-2 ii libutempter0 1.1.6-3 tmux recommends no packages. tmux suggests no packages. -- no debconf information -- To use raw power is to make yourself infinitely vulnerable to greater powers. -- Bene Gesserit axiom
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